GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

81
COMMONWEALTH OF AUSTRALIA DEPARTMENT OF NATIONAL DEVELOPMENT BUREAU OF MINERAL RESOURCES, GEOLOGY AND GEOPHYSICS RECORD No. 1967/120 5C 180 2 GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE DAMSITE No.1 NORTHERN TERRITORY, 1966 by J.O. BRA YBROOKE The information contained in this report has been obtained by the Department of National Development as part of the policy of the Commonwealth Government to assist in the exploration and development of mineral resources. It may not be published in any form or used in a company prospectus or statement without the permission in writing of the Director, Bureau of Mineral Resources, Geology and Geophysics:

Transcript of GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Page 1: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

COMMONWEALTH OF AUSTRALIA

DEPARTMENT OF NATIONAL DEVELOPMENT

BUREAU OF MINERAL RESOURCES, GEOLOGY AND GEOPHYSICS

RECORD No. 1967/120

5C 180 2

GEOLOGICAL INVESTIGATIONOF ADELAIDE RIVERGORGE DAMSITE No.1

NORTHERN TERRITORY, 1966

by

J.O. BRA YBROOKE

The information contained in this report has been obtained bythe Department of National Development as part of the policyof the Commonwealth Government to assist in the explorationand development of mineral resources. It may not be publishedin any form or used in a company prospectus or statement withoutthe permission in writing of the Director, Bureau of MineralResources, Geology and Geophysics:

Page 2: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

501602

RECORD No. 1967/120

GEOLOGICAL INVESTIGATION441r;^

OF ADELAIDE RIVERGORGE DAMSITE No.1

NORTHERN TERRITORY, 1966

by

J.C. BRAYBROOKE

The information contained in this report has been obtained bythe Department of National Development as part of the policyof the Commonwealth Government to assist in the explorationand development of mineral resources. It may not be publishedin any form or use in a company prospectus or statement withoutthe permission in writing of the Director, Bureau of MineralResources, Geology and Geophysics.

:A

Page 3: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE DAM SITE NO. 1

NORTHERN TERRITORY 19 66

by

J.C. Braybrooke

Record 1967/120

CONTENTS

SUMMARY

INTRODUCTION

Page

LOCATION AND ACCESS 1PREVIOUS WORK 1PRESENT INVESTIGATIONS 2

Surveying 2Geological mapping 2Costeaning 2Drilling 3

PHYSIOGRAPHY^' 3

REGIONAL GEOLOGY 4RESERVOIR AREA 5

GENERAL 5POTENTIAL ,LEAKAGE ZONES 5

Tolmer Group 6Adelaide River Fault 6Southern saddle 7Northern saddle 7

DAM SITE GEOLOGY 8LITHOLOGY 8ALLUVIUM 9STRUCTURE 9

Folding 9Faulting 10Jointing 10

WEATHERING 11

The information contained in this report has been obtained by theDepartment of National Development, as part of the policy of the Common-wealth Government, to assist in the exploration and development of mineralresources. It may not be published in any form or used in a companyprospectus without the permission in writing of the Director, Bureau ofMineral Resources, Geology and Geophysics.

Page 4: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Page

ENGINEERING GEOLOGY^ 13

FOUNDATIONS^ 13

Left bank^ 13River bed^ 14Right bank^ 14

DESIGN CONSIDERATIONS^ 16SPILLWAY^ 17CONSTRUCTION MATERIALS^ 17

ROCK-FILL^ 17

Noltenius meta-greywacke^ 17Geological Succession and Structure^17Suitability for Rock-fill^18

Meta-greywacke^ 18Phyllitic Interbeds^ 18Jointing^ 18Bulk Properties^ 1

quantities of Rock-fill^ 19Depot Creek Sandstone^ 20

IMPERVIOUS MATERIAL^ 20SAND^ 21AGGREGATE^ 21

CONCLUSIONS^ 21RECOMMENDATIONS^ 22REFERENCES^ 24

APPENDICES

1^Definitions of semi-quantitative descriptive terms^252^Recommended drilling and costeaning specifications

for quarry site in meta-greywacke^ 26

3^Geological logs of diamond drill holes at Site 14^Geological logs of costeans on right bank of Site 1

TABLES

1^

Classification of degrees of weathering^12

2^

Depths of alluvium in drill holes ARG 39 4, and 7^

143^

Likely volumes and properties of rock-type divisionswithin quarry in meta-greywacke^ 19

Page 5: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

ii

FIGURES

1^Generalised stratigraphic section through damsiteand environs

2^Section showing weathering along proposed axis atdamsite No. 1 (1 inch : 100 feet)

3^Geological and structural section along proposedaxis at damsite No. 1 (1 inch : 100 feet)

PLATES

1^Locality map and geological sketch map of storageand catchment area for damsite No. 1 (1:50,000)

2^Adelaide River gorge; combined geological andtopographical map (1 inch : 8 chains)

Damsite No. 1; combined outcrop and topographicalmap '(1 inch : 200 feet)

4^Geological section through quarry, parallel to foldaxis (1 inch : 200 feet)

5^Geological section through quarry, normal to foldaxis (1 inch : 200 feet)

6^Composite stratigraphic column of quarry site inmeta—gTeywacke (1 inch : 40 feet)

7^Pattern of folding in environs of scheme (stereogram).

Page 6: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

" 4

SUM. ARY

An economic evaluation of the Adelaide River drainage basin is beingundertaken by the Northern Territory Administration. Any plan of developmentwould require a dam in the Adelaide River gorge, upstream from Adelaide Rivertownship, to store water and control flooding. Following earlier investiga-tions, No. 4 damsite was selected for detailed feasibility studies.^Thegeological work has been carried out for the Water Resources Branch of theNorthern Territory Administration.

The site is near the head of the Adelaide River, 4 miles south-westof Adelaide River township which is 72 miles south of Darwin. The site wasselected., because of the favourable topography and the high storage capacityprovided by the widening of the valley upstream of the gorge. A 100-foot-high dam at No. 1 site would store about 300,000 acre-feet of water.^Othersites lower in the gorge offer no apparent advantage in storage : volume ofdam required and geological conditions.

The geological investigation was to prove the feasibility of a100-foot-high damp to ascertain the type of dam most suited to the site

•conditions, and to permit an order-of-cost estimate to be made.

Outcrop mapping of parts of the Adelaide River gorge and storagearea was done at a scale of 1 inch : 8 chains. More detailed mapping ofoutcrops and. costeans at the damsite was done at 1 inch : 200 feet and1 inch : 10 feet, respectively; 1450 feet of diamond drilling and1,500feet of costeaning and pitting were also carried out.

Bedrock consists of graded meta-greywacke and phyllite of theLower Proterozoic Finniss River Group. The rocks are moderately tightlyfolded, display low-grade metamorphism (greenschist facies), and are un-conformably overlain by the Upper Proterozoic Tolmer Group. The AdelaideRiver Fault passes 'through the area ; downfaulting part of the Tolmer Groupagainst the Finniss River Group.

Treatment may be necessary to prevent leakage out of the storagearea through the Northern and Southern saddles (see Plate 1). Both consistof phyllite.

The damsite lies within the western limb of an anticline. Materialin the left abutment consists of phyllite thoroughly weathered to depths of40 to 50 feet.^The weathered phyllite has soil-like properties: it willconsolidate when loaded, and will not withstand high stresses. Further,many cleavage planes and joints within the phyllite are filled with siltyclay and are potential failure planes.^At least 45 feet of sandy clayalluvium covers the valley floor. The right abutment consists of moderatelyweathered, graded metagreywacke.^Close to the surface, highly weatheredphyllitic interbeds are potential zones of failure; they strike normal tothe proposed dam axis.

Page 7: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Because of expected differential settlement between abutments, itis concluded that a rock-fill dam with a wide impermeable earth core or anearth-fill dam, would be best suited to the site. A spillway channel couldbe excavated in the meta-greywacke on the right bank.

Adequate quantities of rock-fill are present within the meta-grey-wacke sequence in the ridge forming an extension of the 'left abutment.Sufficient quantities of suitable earth material for either an earth-coredor earth-filled dam are believed to occur in the alluvial flats upstream ofthe damsite.

Recommendations for further investigations are outlined at the endof the report.

Page 8: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

INTRODUCTION

The Adelaide River gorge has been suggested as'a suitable site fora dam to provide domestic water for Darwin (Woolnough, 1936) i and for hydro -electric power generation (Rosenthal, 1948 ).

The present investigation is part of an overall examination of thepossible development and control of the Adelaide River system being carriedout by the Water Resources Branch of the Northern Territory Administration(W.R.B.). An essential part of any such development would be a dam inAdelaide River gorge. Five possible sites in the gorgp - have been considered,and the uppermost, (No. 1) 9 selected for afeasibilitY study. The dam wouldbe used for flood control and supply of irrigation water forrice growing onthe "black soil" plains of the Adelaide River basin. It Could also, oralternatively, be a source of water for the Darwin town water supply.

LOCATION AND ACCESS

The site is near the head of the Adelaide River gorge; which extendsfrom 2 to 4 miles south-west of Adelaide River township. The township is onthe Stuart Highway, 72 miles south of Darwin (Plate 1).

Access is by a rough, dry-weather track, part of which was constrUc-ted by Water Resources Branch in mid-1966. It is possible, if the track isdry, to travel to the site in an ordinary vehicle, but after heavy raincreek crossings may be washed out.

PREVIOUS WORK

A brief, preliminary report, based on reconnaissance, was sub-mitted by Woolnough (1936)0 The south-east part of the gorge was suggestedas a possible damsite for the supply of domestic water to Darwin.

Rosenthal (1948)9 produced a report for a proPosed'hydro-electricproject on Adelaide River. The site was at the outlet of the Adelaide Rivergorge, 2 miles from Adelaide River township. The project called for a finalwall height of 170 feet. Rosenthal noted that two average wet seasons wouldbe required to fill the storage area produced by a 100-foot- 7-high wall.

Hays (1961) made a preliminary geological investigation of a nuMberof alternative sites, (sites 2,3, and 4; see Plate 2), in the central partof the Adelaide River gorge.

Page 9: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

2 -

PRESENT INVESTIGATIONS

Surveying

Water Resources Branch had contour plans of the entire proposedstorage area and gorge prepared from aerial photographs. These plans areon a scale of 1 inch to 8 chains.^Additional plans for the gorge area areon a scale of 1 inch to 200 fee -b 9 with 5 foot contours. Further, WaterResoUrces Branch surveyors laid out a 400-foot grid using theodolite andsteel tape. The grid includes the area of the proposed damsite and ancil-lary structures. The regional grid is laid out on eastings and northingswhile the dam grid has X and Y co-ordinates; the Y ordinate is 37 degrees westof the regional grid-north.

Geological MaPPirla

In June-July, 1966 9 E.J. Best mapped, in outcrop 'detail, theimmediate damsite area, at a scale of 1 inch to 200 feet; and downstreamof the site, on a scale of 1 inch to 8 chains.^The outcrop positions wereplotted directly onto the contour plans.

The present investigation started in NoveMber,,1966, and continueduntil mid-January, 1967.. preliminary mapping of the storage area wascarried out at A scale' of 1 inch to 8,chains. Further mapping of the dam-site area and the prospective quarry site was done on a scale of 1 inch to .200 feet, again directly onto the contour plans (see Plates ;2 and 3). 7

Costeaning

Costeaning and pitting was carried out before drilling began.Costeans were bulldozed on both sides of the river near the dam axis, andbehind the right bank, close to the proposed spillway site.. Additionalcosteans were excavated across the southern saddle (see Plate 2).^Pittingwas carried out on some of the alluvial flats, upstream of the damsite.

In addition to providing information on the lithOlogy andstructure of the area, the costeans gave an indication of the thicknessof soil and detritus overlying bedrock. Those on the right bank werelogged at a scale of 1 inch to 10 feet; the logs are presented asAppendix 4.

Page 10: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

The pits were dug to check the alluvial flats as a source of earth-fill and impermeable material.

Drilling

The initial drilling programme was started at the end of July, 1966,and was completed in.early February, 1967. Water pressure tests were notcarried out in conjunction with the drilling programme, but have since beendone. Results are not included in this report.^Seven holes, totalling1,445 feet, were drilled along the proposed dam axis.^All but one, which isa vertical hole, were drilled at angles between 45 and 55 degrees to thehorizontal. The angle holes were designed to intersect the bedding roughlyat right angles (see Appendix 3).

Drilling was carried out by Water Resources Branch using aMindrillrig. A MC, triple tube core barrel with stationary split inner tube wasused in all holes; it gave very good to excellent core recovery in finelyfragmented and decomposed ground.^In sections of the alluvium, however,little to no core was recovered. One drill hole, ARG 5 1 deviated from itscourse.^The re-drilled hole is designated ARG 5A.

All core was photographed in the core boxes; in addition, eachlift from hole ARG 3. was photographed in the split tube, giving a permanentrecord of the core in an undisturbed state.

PHYSIOGRAPHY

The Adelaide River gorge lies within the "Uplands" physiographicdivision of the Northern Territory (see Malone, 1962, pp 4-6), with reliefgenerally between 200 and 350 feet. The terrain configuration is con-trolled by the type of rocks and structure present.^Greywacke forms long,steep-sided, rough ridges with fairly close dip-slope and scarp control;the ridges are separated by narrow valleys. Phyllite forms a more gentle,"scalloped" terrain with connecting saddles which can generally be negotiatedby Landrover.

The hills flanking the gorge rise up to 360 feet above the floorof the gorge; slopes are steep ; but only in one or two places are theycliff-like. The floor of the gorge is alluviated throughout. The rathersinuous course of the gorge is determined by a number of geological factors(see Plate 2). From the head of the gorge for about a mile the river isincised into, and follows the strike of, a sequence of west-dippingphyllite; the east side of the gorge is composed of underlying, resistant,

Page 11: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

meta-greywacke. The river then cuts across the phyllite ) along the axis ofa north-plunging anticline. The north-west trending section of the gorge isthrough ; and across the strike of ; a sequence of meta-greywacke. Where ittrends north-east ; the lower mile or so of the gorge is again a strikevalley in soft phyllite; a branch_ of the Adelaide River Fault may alsounderlie this section of the gorge.

Alluvium has accumulated upstream of the head of the gorge.^Tothe south-west of the damsite ; ridges are separated by alluvial flats up toone mile wide. •

REGIONAL GEOLOGY

The general geology of the Adelaide River area is briefly des-cribed by Malone (1958).^The distribution of stratigraphic units in thecatchment area is shown in Plate 1. Much of the catchment has an alluvialand partially lateritised illuvial cover overlying the moderately tightlyfolded meta-sediments of the Finniss River Group. The group is LowerProterozoic in age and includes graded greywacke and siltstone of theNoltenius and Burrell Creek Formations.^These sediments have undergonelow-grade metamorphism to the greenscgist faciesa the regional plunge offolding is 34

0 on magnetic bearing 010 (see Plate 7).

In the south-east and south of the area, gently dipping sedi-ments of the Upper Proterozoic Tolmer Group unconformably overlie theLower Proterozoic strata. The group includes the Depot Creek and StrayCreek Sandstone members of the Buldiva Sandstone, the Hinde Dolomite, andsandstone and siltstone of the Waterbag Formation.^In some areas, ironhas been concentrated in outcrops of ferruginous, Depot Creek Sandstone,forming a medium to high-grade ; hematitic iron ore.

The Depot Creek and Stray Creek Sandstone Members are stronglyjointed and many springs emerge from them. A few of the springs areperennial.

The Adelaide River Fault cuts through the area in a north-easterlydirection.^It is marked by a narrow zone of silicified or ferruginisedfault breccia. Minor faults and branches of the Adelaide River Fault,are also present.

Page 12: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

RESERVOIR AREA

GENERAL

• The catchment (Plate 1) covers 243 square Miles of the southernborder of the Northern Territory coastal plain. Within this border zonethe headwaters of the Daly, Finniss, Reynolds, and Adelaide Rivers inter-digitate. Two saddles limit the storage capacity; they are discussedlater in the report. The planned top water level for the storage is atarreduced level (R.L.) of 264 feet above mean sea level.^This gives astorage capacity of 300 9000 acre-feet and a reservbir surface area of -

5 9 450 acres (information from W.R.B.).

Mapping around the damsite revealed part of the successionwithin the Finniss,River Group. This sequence is indicated in Figure 1.The section was drawn along a line roughly parallel to the proposed damaxis. Thicknesses indicated are only estimates based on the mappingdone to date. Stratigraphic positions of engineering geologicalfeatures, mentioned within the text, are indicated on the section.

POTENTIAL LEAKAGE ZONES

„ There appearto be four possible paths of'Ieakage other thanthrough the. dam"foundations... They.are:

I) through beds within,the Tolmer Group.

2) along the Adelaide River Fault.

3) through the low southern saddle.

4) through the low northern saddle.

Leakage is not expected through the steeply-dipping meta-morphosed, Finniss River Group.

Page 13: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Tolmer Group

Only the Buldiva Sandstone is known to crop out within the storagearea, but the Hinde Dolomite and Waterbag Creek Formations may extend intothe southern part. Even if cavernous carbonate rocks are present near - thehead of the storage, leakage through them would be unlikely because of theextremely long leakage path.

To the west of the Adelaide River Fault, Depot Creek Sandstonedips to the south-east at 10 to 12 degrees ; towards the Adelaide River Fault.A few anomalous dips, in the opposite direction, occur along the fault line.Most of the sandstone is above the proposed top water level.

To the east of the Adelaide River Fault ; Buldiva Sandstone dipsgently (5 to 20 degrees) to the west, obliquely into the storage area. Thebeds abut against a branch of the Adelaide River Fault and are downfaultedagainst the Finniss River Group. The eastern and north-eastern sides ofthe reservoirwould have a barrier of Lower Proterozoic rocks at all pointseast of the Adelaide River Fault, therefore any leakage eastwards throughthe Buldiva Sandstone would have to find an outlet along the Adelaide RiverFault (which is discussed below).. Leakage to the south, into the DalyRiver system, through the Buldiva Sandstone is obviated by the very longleakage path - more than 16 miles.

Adelaide River Fault

Near the southern saddle, the fault, which dips steeply to thesouth-east in places (035 .degrees magnetic/86 degrees SE.), has downfaultedDepot Creek Sandstone against meta-silts -L(5 .12e and meta-greywacke of theFinniss River Group.. The fault is sharply defined. To the north-westof the saddle Depot Creek Sandstone abuts against meta-greywacke. At thecontact a vein of hard hematite ; one to two feet wide, contains a narrowband of breccia. The latter consists of friable sandstone fragmentswithin a hematite matrix. Thin hematite veins also occur parallel tocleavage in Some areas.

To the south-west, at the contact between sandstone and meta-siltstone, there are outcrops of silicified breccia up to 30 feet wide.The breccia consists of sandstone fragments in a crypto-crystalline quartzmatrix. The meta-siltstone is closely cleaved near the fault trace; inplaces the cleavage is contorted, elsewhere it is parallel to the faulttrace.

The fault line appears tight ; and has no springs associated withit (observations by the author and by D. Kneebone, Senior TechnicalOfficer, ICR.B.).^Any seepage comes out of near-horizontal fractures

Page 14: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

••

•••

••

I

••

••

••

••

••

•••

••

o0

0 0C

o0

00

00

0

C E

O0)

Tn. UO

U)

n••

•' 04E"

laOc

'-

0C

D a

'6 E80

C.'.

O0

O0

+1 ^2^

+1 ^+1 ^

rn^+I^

cn^

+1^+

or,..^

o^

0^

0 0^

O0

^o

0^

0^

0^

it) to^

Ln^0

in^Lc)^

CO^CV^

CV^0CO^

St^

tO

: •

; •

c:13

•c

DI0

Z0

83

10

8d

83 dein0

10

Z0

83

.1.0

dcl 3

M0

1

. ••.•

.• S

I

0000

•• •....0

••

.0

d noi 9

J

!^ss!u

u!A

c)

•-•• •. • •

C••

•• •

I.

•: • •. .

.•

. •

suo

uo

u.n

od

sn!L

ierflo

N p

uo

meti).10

Page 15: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

— 7 —

within the Depot Creek Sandstone (also see Hays, 1961, p6).^Leakage istherefore not expected along the fault. To confirm the impermeabilityof thefault, a - drill hole should be put down to intersect the fault andwater-pressure tests should be carried out, especially within the meta-siltstone near the contact (see below).

Southern Saddle (R.L. 277 feet)

The saddle lies within meta-siltstone.^Its north-west edgeis bounded by the Adelaide River fault-line scarp.^Streams drain to thenorth and south with gradients of 1:30 and 1:70 respectively.

During earlier investigations, the saddle, the "Eastern Low.Saddle" of Hays (1961), was considered as a possible spillway site; theneed for a cut-off wall was also considered. A resistivity survey wascarried out in 1960.^Attempts to check the results by augering werenot successful.^Since then, two costeans have been bulldozed to a depthof 6 to 7 feet.^The top 2 to 3 feet of soil consists of fine-grainedsand:washed down from the Depot Creek Sandstone to the west. Below thesand, highly weathered and lateritised meta-siltstone is present. Thismaterial has a high clay content.. Form interpretation of the geophysicalwork, the contact between the highly weathered and moderately weatheredmeta-siltstone is places at a depth of 10 to 20 feet below the surface,with moderately weathered rock to at least 40 feet.

The highly and moderately weathered meta-siltstone probablyhas permeabilities similar to those of the phyllite in the left bank ofthe damsite. Two shallow holes may be needed for water pressure testsand to check the depth of weathered rock.^In addition, the contactbetween highly weathered meta-siltstone and the Adelaide River Faultshould be water-pressure tested. A grout cut-off may be needed acrossthe saddle to make it water-tight.

Northern Saddle (R.L. 289 feet)

The northern saddle, the "'Western Low Saddle" of Hays (1961)/is steep sided with slope gradients ranging from 1:2 to 1:6.^The saddleis on the west limb of an anticline in cleaved phyllite, which in the rareoutcrops, is brittle and closelycleaved.^Cleavage spacing is from to1 inch.^In the saddle, cleavage strikes 018 degrees (magnetic) and dipsabout 80 degrees west. The strike is almost normal to the axis of thesaddle.^Unless cleavage is tight at depth, it may allow leakage.^Hays,(1961, p 7), noted that "joints appear to be open to a depth of between50 and 100 feet" (in outcrop on the saddle slopes), but drilling in the

Page 16: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

left abutment of the dam indicates that the phyllite is generally tight,even close to the surface.^Since the shortest potential leakage path isonly 300 feet, careful water-pressure testing will be needed to determine thepermeability of the phyllite. For this purpose one or two, 60 to 70 feetlong, cored, diamond drill-holes will be required.

An anticlinal axis to the south-east of the saddle lies alonga ridge of phyllite, capped by cleaved meta-greywacke. On the east limbof the anticline the meta-greywacke dips to the north-east at 45 to 55degrees; the west limb is scree covered.^Along the synclinal trough inthe valley to the east, seepage was noted from bedding planes within themeta-greywacke.

If the water level is raised above R.L. 280 feet, water may leakalong bedding planes and joints within the meta-greywacke. If a maximumtop water level of 264 feet is used, water will have to pass through thephyllite to leave the storage area and the meta-greywacke capping shouldnot present a leakage problem.

DM/1 SITE GEOLOGY

LITHOLOGY

The damsite area consists of graded meta-greywacke and phyllite(see Plate 3 and Fig. 1). Meta-greywacke grades from pebble conglomeratethrough coarse, medium, and fine grained greywacke to phyllite, but not allgradations are present in every graded bed. Beds range in thickness from1 to 40 feet and crop out as elongate, steeply dipping ribs and slopingslabs.

Conglomerate bands, many of which are very friable at the surface,are composed of rounded quartz pebbles. Most of the pebbles are between

and 2 inches in diameter.^In places, the pebbles are sheared and ovoid.Bands are not everywhere continuous but tend to pinch and swell.^Shallowscour channels in underlying, fine-grained beds are commonly partly filled .with conglomerate. The conglomerate grades upwards into a quartz-greywacke.In places there is no transition and sharp contacts occur between coarse andfine bands.

The meta-greywacke consists of angular to sub-rounded quartzgrains set in a fine groundmass of sericite, quartz and minor quantities ofgreen chlorite. Under polarised light, most quartz grains show unduloseextinction, caused by strain; some are granulated, some are partiallyrecrystallised. Within the finer bands, fine cross-bedding is common.

Page 17: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

At.

Aar

■Ir

Ara

.A

rair

••41

/A

ril"-4

tAF

•rd

Ir

.41A

VM

"Aar

AP

AI

Ara

.'

"M

iff

cx "A

or

•••0‘3.

0

cx

4ita

.m

ite,

4/

/to

r

I/

Up

./

Mg

r.4

t40

,4

/te

•w1--

4a

------r^-J

Or

.^>

-It%

Iv'^Ia_

..4•

/.4

2* 4

.e'IP

.a•dir

.1121/.a'ar

11.41,

4t.

44

"8

8 ^- 0

cr

0.0

izt

V.LIPALVA

IP.VAM

P.111111■■•••■111•674 LwAv■v■I 5•1 I I I I I I I 'A I I I I

cx

Page 18: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

9

Outcrops of phyllitaare sparse; they occur as closely cleavedblocks and slabs protruding from a shallow soil cover,^The blocks are verysusceptible to soil creep.^The phyllite has a fine—grained groundmass ofquartz, sericite, and light—green chlorite.^In places, quartz porphyroblastsare present.^Holes ARG 4 and 6 intersect bands which consist of contorted,black, chloritic "slate", with highly polished shear faces.

Phyllite beds were originally siltstone, shale, or mudstone.Bands within the sequence still Show soft—rock structures such as load—casts,ball and pillow structures ; and fine cross and graded bedding.

Outcrops of both meta—greywacke and phyllite are locally silici-fied, especially close to quartz veins.

ALLUVIUM

Alluvium is at least 45 feet thick in the main stream.^Itconsists of sand, gravel, and stiff, impermeable, sandy clay

; silty clay,and clay.^Close to the valley sides, scree boulders are present.

In the watercourse into which it is proposed that the spillwayshould discharge, alluvium is from 4 feet to greater than 25 feet thick.The top few feet of clay is underlain by weak ; highly weathered andlateritised gravel.

STRUCTURE

.F.c2Ldirig

Both left and right banks of the damsite are on the moderatelysteeply dipping (40 to 60 degrees) east limb of a syncline, (Fig. 3).The synclinal axis follows the top of the ridge which forms the left sideof the valley and plunges north—north-east between 20 and 30 degrees.The anticlinal axis of a minor fold is exposed on the right bank, in acostean at R.L. 330 feet, near the proposed centre—line of the dam.Another anticlinal axis is exposed in the spillway costean, on the eastside of the right bank.

Page 19: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

- 10-

Faulting

Apart from minor dislocations, (displacements of 1 to 6 inches),.along fractures, there is no surface evidence of faulting within the damsite.A number of shear zones were intersected by drill holes, especially withinthe phyllite (see Appendix 3 and Fig. 3).^In addition, one or two areas ofsilicified breccia,up to 1 foot thick, were intersected.

Drill hole ARG 7 passed through a possible shear zone from 45 to73 feet (28 to 40 feet, vertical depth), directly below the alluvium. ^Corerecovery was poor; the material recovered is fine, white clay containingangular phyllite fragments and five fragmented quartz veins. From 73 to85 feet (slope distance), the hole passed through finely fragmented andsheared phyllite.

The presence of contorted, fragmented, slaty zones in the phyllitealso indicates shearing.^These zones were intersected by drill hole ARG 6at depths from 128 to 256 feet (74 to 144 feet, vertical depth), and bydrill hole ARG 4 at depths from 69 to 200 feet (40 to 125 feet, verticaldepth).^All fracture faces are polished and have a vitreous lustre.

Jointing

Jointing characteristics of greywacke differ from those ofphyllite. In the phyllite, cleavage is the most prominent parting; itappears to parallel bedding.^Cleavage- spacing ranges from to 2 inches,near the surface, to greater than 8 inches at vertical depths of 100 feet.Cleavage planes are normally clean; some are slickensided or penetratedby thin, (41 to 1 inch wide), quartz veins. Near the surface thin clayseams, formed by weathering, are present along cleavage planes.

From observations of drill core, a set of joints dips at 30degrees in the opposite direction to bedding. Joint faces are clean; atdepth some are chloritic and highly polished, and a few are coated withOlears of pyrite. Another joint set dips at 60 to 70 degrees to the coreaxis in inclined holes. Near the surface, faces of this set are iron-stained and many have thin clay films. At depth, they are commonly coatedwith pyrite; slightly open joints contain small quartz and pyrite crystals.

Many bedding contacts between phyllite and coarse or mediumgrained, meta-greywacke are slickensided; bedding joints within the meta-greywacke are generally clean and tight, but many are iron-stained.Within the meta-g7eywacke, close to very close, (* to 12 inch spacing), .steeply dipping, (75 to 90 degrees), cleavage planes are arranged radiallyabout fold axes, especially anticlinal crests. Other partings are more

a

Page 20: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

EI

0 2

0 00

sr ..?0.

8

Page 21: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

widely spaced than in the phyllite.^In 30 measurements, the maximum andminimum joint spacings were 5 feet, and 1 inch 2 the average spacings beingbetween 21 inches and 5 inches.

From 160 joint measurements in the meta-greywacke, the major setsstrike and dip:

012-071 (3/16-48° Ey especially 024-049°/20-40 ° E.with a complementary set at 027-037 0/37-45 ° W. Further sets are:

002-0 11 °/44-51 ° E 9

069-0 863 /44.--56°098- 120°/58-66° NI106-11e/30-34° S.

(all bearings are magnetic).

In drill core ; joints at 30 to 45 degrees to the inclined coreaxis are the most common. Near the surface many of them have thin clayinfillings.^Steeply dipping joints commonly have internornecting voids,(1/10 to inch wide), contaIning quartz crystals with pyramidal ends.Some fractures within fine-grained bands are slickensided and coveredwith bright-green chlorite.^(After two or three months in the atmosphere,the chlorite breaks down into a green-white powder).

WEATHERING

Two classes of soil and scree covered areas have been distinguished;their distribution is shown in Plate 3.^In one class, soil cover is lessthan 3 feet thick, rock outcrop is scattered, and coarse, blocky scree occursin places. Rock does not crop out in the other class of area; soil andscree cover is at least 3 feet, and in places is over 7 feet thick. Nearthe base of slopes, scree material is partially lateritised 2 the rockfragments being completely decomposed and cemented by a weak, ferruginous,sandy clay matrix.

On the upper left bank there is only a thin soil cover with largescree blocks present.^This thin cover extends down to the break in slope,slightly below the hidden meta-greywacke, phyllite contact.^Below thebreak in slope scree increases in thickness both towards the base of theslope, (there is over 7 feet of lateritised scree in the bottom costean),and downstream of the dam axis.

Page 22: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

- 12 -

The right bank has a thin soil cover. Near the base, and upstreamof the dam axis, there is only a narrow band of scree, generally 3 to 4 feetthick, which thins downstream.

The degree of weathering has been divided into a number of classesbased on the breaking response of the rock to hammer blows:

Table 1 Classification of. Degrees of Weathering

Class^ Rock Properties

Completely weathered^Relict.rock.fabric; behaves mechanically as soil

Highly weathered^Much clay associated with siltstone and phyllitewhich crumbles when crushed in hand; meta-grey-wacke friable and can be broken across the fabricby unaided hands.

Moderately weathered

Slightly weathered

Clay along fractures in phyllite; phyllite crumblesunder a 21b geological hammer blow. Meta-greywackebreaks under a moderate hammer blow; some of rockmay withstand hard hammer blows.

Rock slightly discoloured and stained along fractu-res; kernels of fresh rock between fractures.Strength slightly reduced from that of fresh rock.

Fresh^ Rock dark to light grey; no iron staining.Phyllite may bruise and break along cleavage planeswhen struck by a 21.1) geological hammer. Meta-greywacke rings when struck by hammer.

The effect of weathering and depth to which weathering extendsdepends markedly on the lithology.^In phyllite on the left bank, spacingof cleavage partings is dependelt on weathering: partings are closer spacedin the more highly weathered zones.^In drill hole ARG 5, highly weatheredphyllite extends to 20 feet.below the surface; in ARG 6 it extends to 70 •feet below the surface, (see Fig. 2).^Below these zones there is moderatelyto slightly weathered phyllite. Even at 140 feet below the surface, in drillhole ARG 6, phyllite is still.moderately weathered in bands.

Meta-greywacke in the right bank is not as weathered as the phyllite.There is less than 30 feet of highly weathered meta-greywacke in the top ofdrill hole ARG 1. The zone of moderate weathering decreases in thicknesstowards the valley floor; from 100 feet below the surface in ARG 1, to65 feet in ARG 2, and 65 feet in ARG 3. As on the left bank, the meta-grey-wacke is still slightly weathered 200 feet below the aLlIvial flats.

Weathering can be expected to extend deeper in anticlinal andsynclinal cores than on the limbs of folds.

Page 23: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

• ENGINEERING GEOLOGY

From topographic considerations, five possible damsites wereselected within the Adelaide River Gorge, (see Plate 2).^Sites 2, 3 and4 were previously investigated by Hays (1961)3 the height of a dam atsite 4 is limited by a low saddle with a R.L. of 221 feet; sites 2 and 3May warrant further investigation before a final decision is made aboutthe present site, but preliminary mapping indicates that phyllite underliesmuch of the foundation areas for both sites.

The location of the present damsite, (site 1), was selectedbecause of favourable topography at the site, and because of the high,storage capacity available, as a result of the widening of the rivervalley just upstream from the site.

The initial investigation was planned to:

a) determine whether the site is suitable for theconstruction of a 100-foot-high dam, and if so

t) provide enough geological information to enable afairly accurate cost analysis to be carried outbThis is needed to determine the economic feasibilityof the scheme.

FOUNDATIONS

Left Bank

Little, to no, rock crops out on the left bank in the position ofthe proposed dam axis. Only above R.L. 375 feet, where a conglomerate andmeta-conglomerate sequence overlies the phyllite, is outcrop apparent.However, only a comparatively shallow cover of soil and scree overlies thephyllite. The cover ranges from 2 feet thick, half way down the slope, to7 feet thick at the base of the slope.^Phyllite is exposed in two costeans,at drill sites ARG 5 and 6, and along bulldozed tracks leading to the sites.Near the surface., phyllite is affected by soil creep. The rock is mainlysoft, weak, closely cleaved and fragmented.^During the investigation, waterrunning intermittently over a period of weeks, cut a trench 18 inches deepin parts of the costeans.^In drill hole ARG 6 2 the first 120 feet, (75feet, vertical depth), is in highly weathered phyllite.^The phyllite isrepresented by a sericitic and chloritic silt and silty clay for much of thefirst 50 feet (30 feet, vertical depth).

Page 24: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

14 -

Soil testing procedures will be applic.able for the highly weatheredmaterial which has a low cohesion (c) and probably a low angle of friction(0.^(This opinion is based on tests by the Commonwealth Department of -Works on fill material consisting of highly weathered phylljtA of the NolteniusFormation from Fort Hill ; Darwin (see Braybrooke, 1967).^R.,sults from thetests were: c : 0-6 pounds per square inch (p.s.i.) and 0: around 26 degrees).As the phyllite is soft, it can be easily ripped and excavated using bulldozersor scraper dumpers.

The material will compact and settle when loaded, and will notwithstand high stresses; however, a, rock or earth fill dam, 100 feet high,should not impose high loads on the foundations. A potential failure surfacemay exist along the contact between highly weathered and moderately weatheredphyllite. Phyllite readily parts along cleavage planes and joints, many ofwhich have clay material associated with them.^Since the cleavage dipsinto the hillside, it will probably be less of a problem than the joint planes.

Results of water pressure tests are not available but it is expectedthat the phyllite may be more permeable-at depth than near the surface; thesilty and clayey material at shallow depths should make the upper zone com-paratively water-tight, However ; during drilling of holes ARG 5 and 6, com-plete loss of drilling water was recorded at depths up to 30 feet, (15 feetvertical); Water was seen draining out of the hill side below the drillsites.^If leakage does occur through the left abutment, because of the siltymaterial, there is a danger of piping in the top 80 - feet.

At about R.L. 140 feet in drill holes ARG 5, 6 and 7 pyrite occursas joint infillings. Thiswould tend to Jxidise to sulphate radicles in thepresence of cement grout and will attack the cement. Hence, if cementgrouting is to be used below R.L. 140 feet in the phyllite zone, sulphateresistant cement should be used.

River Bed

Results from drill holes ARG 3, 4 and 7 indicate at least 44 feetof alluvium overlying weathered bedrock.

Table 2^Depth of Alluvium in Drill Holes ARG 3, 4 and 7.

Hole ARG^Distance to weathered bedrock feetInclined^ Vertical

^

7^65 (possibly sheared^ 40 (28)bedrock below 43)

^

4^ 66^ 40

^

3^ 53^ 44

Page 25: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Me

eat

In ARG 7 ; most of the core recovered to 43 feet (28 feet vertical)is a leached and mottled, stiff, impermeable sandy clay with a few phyllitefragments, quartz ; and meta-greywacke pebbles and boulders. From 43 to 51feet (28 to 32 feet, vertical distance), there is a stiff, white clay with afew phyllite fragments; between 51 and 65 feet no core was recovered.Broken quartz veins and stiff, white clay occur from 65 to 72 feet (40 to 45feet, vertical distance), then to 84 feet, (50 feet, vertical), there ishighly weathered phyllite.

Little core was recovered from. the first 66 feet of ARG 4. Whatcore there is, consists of sandy clay and pebbles of meta-greywacke'andquartz.

Core recovery from drill hole ARG lwas also poor. The dAller'sshift reports indicate: 10 to 14i feet (7 to 11 feet vertical)-silty clay;14i to 30 feet (11 to 24 feet vertical)-clayey sand and river gravel withquartz pebbles and greywacke boulders. Directly below the alluvium, thereis moderately to slightly weathered meta-greywacke.

The drilling results suggest that a shear zone may have beenintersected by ARG 7 between 43 and 72 feet; further exploration will beneeded to confirm this. Further, it appears that the river may havepreferentially cut deeper along the contact between the meta-greywacke andthe phyllite, than elsewhere. This contact, which was intersected by drillhole ARG 4 at 212 feet, shows minor shearing of the phyllite.

Since sand and gravel beds may occur randomly within the alluvium,providing potential leakage paths, the alluvium may have to be excavated to .sound bed-rock or an impermeable cut-off provided in the alluvium. . Per-cussion drilling and geophysical work will be needed to define the distri-bution of the alluvium accurately.^If the alluvium is excavated, it may beusable as part of the fill material.

If it is decided not to remove the alluvium, a slurry trench cut-off composed of bentonite or a bentonite-cement mixture, or an upstreamimpervious blanket, (see Sherard, et. al., 1961, pp 304-308), may beapplicable.^Sheet-piling, with closure by cement grouting, could alsopossibly be used.

Right Bank

Elongate outcrops of graded meta-greywacke, dipping towards theriver, occur on the right bank. Between outcrops, particularly over fine-grained meta-greywacke and phyllite bands, there is a thin soil cover.The cover ranges from 1 foot, near the proposed dam crest, to 4 or 5 feetthick at the base of the slope; hence little stripping will be necessaryto expose the bedrock fully.

Page 26: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

- 16 -

Near the surface, fine-grained met a-greywacke and phyllite bandsare very closely fractured to fragmented.^In the phyllite, clay-filledcrush zones are common near the sarface. At shallow depths, slickensidesin phyllite are prevalent, indicating differential movement between competentand incompetent beds, during folding.

Medium-grained meta-greywacke is closely fractured near thesurface, but generally the rock is moderately strong to strong at depthsof 5 feet or less.^Near the dam crest, there may be 10 feet of highlyweathered meta-greywacke, (see Fig. 2).

No bearing capacity problems are anticipated on this bank althoughthere may be some compaction of phyllite bands. Phyllite bands are alsoimportant as potential planes of weakness, especially since the beddingstrikes almost normally to the dam axis.^If high horizontal stresscomponents are applied to the foundations on the right abutment, slidingdownstream coulioccur along one or more of the weathered phyllite bands.

A set of joints within the meta-greywacke, dipping at 45 degrees,are open in part and have interconnecting cavities.^They constitute apotential leakage path^Careful grouting would be needed to make theright abutment water-tight.^Since bedding dips at 50 degrees, blanketholes may have high takes owing to grout passing out of the surface zone,down bedding planes.

Design Considerations

The profile of the proposed axis is suitable for a concretebuttress, earth or rock-fill dam. Because of poor foundations, cost ofcement and the probable lack of suitable aggregate and sand, a concrete damappears to be uneconomical. Hence the choice lies between a rock-fill damwith an impermeable core or an earth-fill dam.^Sufficient quantities ofrook-fill are present and pitting has indicated that large quantities ofearth-fill are probably also present near the site.

Since highly weathered phyllite on the left bank will probablycompact to a marked degree under the load of the embankment ; the damfoundations should be wide. Also, because of the difference in rock typeson either bank, differential settlement of the two sides is likely to occur,even if the left bank foundations were excavated to fresh phyllite.

These considerations call for either a rock-fill dam with a widecore-zone, or an earth-fill dam.^Soil mechanics studies should be madeon foundation material to determine the safe load and other design criteria.

Page 27: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

■•••

-

SPILLWAY

The proposed spillway site is in graded meta-greywacke, on theright bank. A minor anticlinal crest is exposed at R.L. 300 feet on thelinesof the dam axis.^This is close to the proposed spillway crestposition. The spillway channel will probably slant down the back slopeof the right bank, running across the strike of the bedding at a shallowangle. .A spillway channel in this location would pass over an anticlinalcrest near the base of the slope.

The right wall of the spillway cut will have to be cut at anangle no steeper than the bedding dip of 50 degrees. Material excavatedfrom the spillway may be usable as rock-fill.

Shallow drilling will be needed along the spillway centre lineand at the site of the energy'dissapator, wherever positioned, to deter-mine the depth of weak, weathered rock.

CONSTRUCTION MATERIALS

ROCK-FILL

If a rock-fill dam is decided on, between 500,000 and 1,000,000. cubic yards of rock will be needed (the Figures are very approximate;they are based on estimates by W.R.B.).^Available sources are:

a) the meta-greywacke of the Noltenius Formation; and

b) the Depot Creek Sandstone.

Noltenius Met a-greywacke

Geological Succession and Structure

The ridge that forms the extension of the left abutment consists'of a folded sequence of meta-greywacke beds. The beds are from 4 to 40feet thick and grade from a quartz-pebble conglomerate through coarse,medium, and fine grained greywacke to phyllite.. The sequence, which is800 . to 900 feet thick, occurs stratigraphically between thick sequences ofphyllite. A synclinal trough extends along the centre of the ridge, withan anticlinal crest on the western edge and a probable synclinal troughhalf way down the western slope, (see Plate 3 and 5)0

Page 28: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Outcrop is generally sporadic and the western dip slope is almostcompletely scree-covered, but conglomeratic bands provide useful members forcorrelation of beds.^A number of sections paced across areas of fairlycontinuous outcrop have been interpolated and projected onto sections ABand C-D. From these, a composite stratigraphic column of beds in the quarrysite has been built up (see Plate 6). The thickness of beds in this columnhas been reduced to true thickness.^Since individual beds lens and swell,the sequence presented in the column is generalised and approximate. Abovethe succession in section C-D, there is another 400 feet of meta•greywackewhich is closely cleaved in outcrop. This lies outside the proposed quarrylimits, (see Appendix 2).

Suitabilit for Rock-fill

NIEl_a■clsf_?JL At the surface the meta-greywacke varies inquality.^In places it is strong and partly silicified; in other areas,especially where it is close to fold axes and where it is fine-grained andmicaceous ; the meta-greywacke is closely cleaved, highly weathered andfriable. Further, the matrix of conglomerate and very coarse-grained sandbands tends to be weathered, producing a friable material.

Some of the mica-rich meta-greywacke may have poor aggregate.shear-strenek characteristics. When wetted, both its compressive strengthand its sliding friction angle are expected, to decrease.^(When wetted,the sliding friction angle of mica decreases markedly, see Horn and Deere,1962).^Samples will have to be submitted to the appropriate strength anddurability tests.

Phyllite is:very.weak at the surface.Information from drill holes ARG 1,23 and 4 indicate that phyllitic inter-beds are also weak and fragmented at depth. Hence, on working, it willproduce excessive fines.

Thinting!..., Pronounced jointing in. meta-greywacke, within the area,produces natural blocks from 1 to 10 cubic feet in volume. The blocks rangein shape from plates and elongate blocks to cubes; elongate and plateyblocks predominate. From measurements of 60 natural blocks taken at random ;

the average ratio Of diameters was 1:1.6:2.5.

Near fold axes, meta-grepracke at the surface is closely cleaved,with plates down to half an inch thick.

Bulk Properties: Using information from Fig. 4, the section hasbeen divided into four rock-type divisions ° For each rock type, thecumulative thickness, percentage of section, comments ; and likely propertiesas rock-fill, are given in Table 3.

Page 29: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

-19-

Table 3 Likely Volumes and Properties of Rock Type Divisions withinProposed Quarry in Meta-greywacke.

Rock Type Cumulative^Percentagethickness^of totalin section^section

(feet)^thickness

Comments LikelyPropertiesas rock-fill *

Phyllite

No Outcrop

Fine-grainedmet a-greywacke 9 .

friable atsurface

^

20^4^Little outcrop.^Weak; will crushVery closely^on working,fractured to^producing fines.finely fragment-ed at depth.

^75^16^

Probably mainlyweak rock produ-cing excessivefines on working.

^

105^23^Commonly highly^Weak to moderatelymicaceous with strong. On workingpoor bond strength. will produce blocksModerately to and moderate fines.closely fracturedat depth.

Fine-grained^260meta -greywacketo conglomerate

••■=am'OCNII-Jaw•

57 Moderately toclosely fracturedat surface and atdepth.

Moderately strong.On woiking willproduce blocksand some fines.

460^100

* (Opinions based on observations from outcrops and core; will need confir-mation by drilling and suitable tests).

Quantities of Rock-fill

Assuming the proposed quarry floor to be at R.L. 250 feet, the quarrysite, (see Appendix 2), shouadcontain 1000,000 cubic yards of rock-fill.^Thesite mainly lies within the east limb of a syncline.^It also has an anticli-nal axis running through its centre, (see Plate 5).^To prove the quarry,using geological deduction, 580 feet of drilling and 800 feet of costeaning isneeded, (see Appendix 2 for detailed recommendations).

Should the volume of suitable material be inadequate, the proposedquarry could be extended horizontally in any of three directions, or the floordeepened, and still remain within the meta-greywacke sequence. Phyllite would

Page 30: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

0 -

probably be encountered in the qarry floor if the anticlinal axis is followedtoo far towards the south.

Large blocks suitable for rip-rap are expected in sufficient quan-tities, but they would probably have to be stockpiled as produced.

1122aLgrtgk Sandstone

Along the Adelaide River Fault there are a number of scarps up to90 feet high in Depot Creek Sandstone.^The rock is a'well-bedded, strong,partly siliOified ; fine-grained quartz sandstone. Though no estimate hasbeen made of the volume of rock present, the sandstone could possibly beused as rock-fill. However ; the silicification may be a superficial pheno-menon.^If so 9 the sandstone at a fairly shallow depth is possibly too softand friable to be used for rook-fill. Drilling would be required to checkthis, Further, owing to pronounced bedding, the sandstone would possiblybreak into platy blocks when blasted,

IMPERVIOUS MATERIAL :

,^.^•The only suitable material for use ih an impervious bore is the

sandy -clay alluvium that occurs extensively.in.the valley of the AdelaideRiver. Large alluvial flats ; of an unknown thickness (possibly up to 40feet thick in places), have been formed above the head of the gorge. Anumber of them have been pitted to determine the quality and quantity ofthe material. From a superficial examination ; the alluvium ranges fromclay to a well graded (?) sandy clay with moderate to high cohesive strength.In most pits the top 1 to 2 feet consists of a grey-black ; non cohesive soil,underlain by red to pink sandy clay. The alluvial deposits have been in-vestigated by engineers of Water Resources Branch.

The volumes present have not been estimated but more than enoughmaterial has been proved for an impermeable core. If an earth-fill damis decided on, there would probably be adequate supplies of alluviumwithin a mile of the damsite.

If alluvium at the damsite is removed, this may be usable as earth-fill material. That recovered from coring is a stiff, sandy clay to clayand appears impermeable.

Since there may be sandy lenses within the alluvium ; it would haveto be thoroughly mixed to prevent a permeable zone being formed inadvertently.Representative samples will have to be stble3ted to the usual laboratory tests.

Page 31: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

-21-

SAND

No suitable sand deposits have been found near the damsite.Deposits of fine-grained, pink quartz sand form flats below the AdelaideRiver Fault. This sand is derived from the Depot Creek Sandstone. Itappears to be too fine-grained for use in concrete without blending, butno grading tests have been done on the sand, and no estimate has beenmade of the volume of sand available.

Suitable sand is reported to have been located in the bed of theriver, below Adelaide River township.

AGGREGATE

The most suitable source of aggregate appears to be crushed v...silicified, Depot Creek Sandstone or crushed meta-greywacke.^If these .sources prove unsatisfactory, commercial sources, such as the 'AustralianBlue Metal' quarry at Acacia Creek, may have to be used.

CONCLUSIONS

From geological considerations, the construction of a 100-foot-high rock or earth-fill dam at Site No. 1 is feasible.

The depths of alluvium and highly weathered phyllite, whichform the left abutment and foundation below the river, are the maindisadvantages of the site; they are up to 45 feet thick.^The rightabutment is composed of strong, elastic meta-greywacke. Therefore,differing response to loading by the dam embankment, across the site, willrequire a design and embankment material which will accept differentiaLfoundation settlement.^-

As water pressure tests were not carried out in conjunctionwith the drilling programme, no conclusions can be reached as to thepermeability of the foundations.

Testing will be necessary to determine whether leakage will occur' through the Northern and Southern saddles.

Page 32: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Ample rock and earth-fill materials. appear to be available closeto the site.

If the profiles of Sites 2 and 3 suggest that volumes of embank-ment would be similar to that required for Site or that any added embank-Ment volume for Site 2 or 3 would be fully offset by the cost of excava-tion and foundation treatment at the No. - 1 site further geological in-

- vestigations should be carried out at Sites 2 and 3 before a finaldecision is made about Site No. 10

RECOMMENDATIONS

Collar positions of the drill holes and costean centre linesshould be accurately surveyed with respect to the damsite grid. . Ifdrilling is carried out in the proposed quarry site, the grid will haveto be extended to cover this area. All drill holes should be preservedby cementing in stand pipes to which screw caps can be fitted, and shouldbe clearly Marked.

'Should it be decided. to construct a dam at Site No. 1 9 additionalgeological information will be needed on which to base the design of thedam. However ; before a final decision can be made on the site ; furtherpreliminary geological investigations may be necessary of Sites 2 and 3(see Conclusions).^Information available indicates that phyllite ispresent within the foundation areas of both sites but that thicknesses ofalluvium may not be as great as at Site 1.

The following design investigations are recommended:

1) Samples of the highly weathered phyllite on the left bankrequire in situ and laboratory tests to determine mechanicalproperties and permeability.

A programme of seismic work in conjunction with patterndrilling is necessary to determine the thickness ofalluvium and highly weathered phyllite. At least six50-foot percussion holes will be required initially. Onthe left bank 2 the boundary between alluvium and highlyweathered phyllite will be difficult to distinguish,Excavation limit may have to be based. on mechanical tests.of representative samples.

After the seismic survey ; further diamond drilling willprobably be needed to test suspected shear and faultzones, or other zones of low velocity.

4) Further costeaning and sluicing of the right bank isdesirable to provide more detailed information on the

Page 33: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

- 23 -

amount of "dental work" (caulking of joints, minorshears and pockets of deep weathering with concrete)neede4,and to determine whether a satisfactory foundationcan be obtained without trimming of the rock.

5) Shallow drilling and seismic testing will be requiredalong the spillway centre line and at the dissipatorsite.^At least three, vertical, 30-foot diamond drillholes will be required along the channel to determinethe depth of weak, weathered rock. The whole of thespillway area should be cleaned down, sluiced, andmapped in detail by a geologist.

6) Some design drilling and geological mapping will berequired for any diversion works that may be required.The work necessary cannot be indicated until the natureof the diversion works, if any, is decided.

7) 580 feet of drilling and 800 feet of costeaning will , berequired in the proposed quarry site in the meta-g,Tey-wacke, (see recommendations in Appendix 2).^Sampleswill have to be subjected to appropriate strength anddurability tests. Further drilling may be needed forcontractual purposes.

8) The necessary quantity and quality of earth-fill materialwill have to be proved by the appropriate field andlaboratory studies.

The permeability and thickness of highly weatheredphyllite will have to be determined in both the Northernand Southern saddles. This will require one or two

1^diamond drill holes in each saddle.^These holes shouldreach a depth of 60 to 70 feet and be water-presure tested.

10) At least one hole should be drilled through the AdelaideRiver Fault and be thoroughly water-pressure tested.

Page 34: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

- 24 -

REFERENCES

BRAYBROOKE 9 J.C. (1967) - Stability of the cut bounding the Fort Hill ironore dump area Darwin Northern Territory. Bur. Min. Resour._Aust. Rec. 1967/24 (unpUbl.).

HAYS 9 J. (1961) - Preliminary geological investigation of Adelaide Riverdam site 9 Northern . Territory. Final Report. Bur. Min. Resour._Aust., Rec. 1961/83 (unpubl.).

HORN 9 Hall. and DEERE 9 D.U. (1963) - Frictional characteristics of minerals.Geotechniou,e 12 2 (4):3i9-335

MALONE 9 E.J. (1958) . - The geology of the Darwin- Adelaide River area ;

Northern Territory. Bur. Min. Resour, Aust. Rec. 1958/96(unpubl.).

ROSENTHAL 9 C.C. (1948) - Report on proposed hydro- electric projects 9

Adelaide River 9 N.T. (Unpublished Report)

SHERARD 9 J0L. 9 WOODWARD 9 R.J0 9 GIZIENSKI 9 S.F. ; and CLEVENGER ; W. (1963) -EARTH AND EARTH-ROCK DAMS; ENGINEERING PROBLEMS OF DESIGN ANDCONSTRUCTION. Wileq 2 N.Y.

WOOLNOUGH 1 W.G. (1963) - Report on geologioal,aspects of the proposedwater supply for Darwin, N.T. (Unpublished Report - File 45/

Page 35: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

— ?5 . -

APPENDIX_ 1

DEFINITIONS OF SEMI:AVANTITATIVE DESCRIPTIVE TERMS

Grade Scale

Pebble^ 4 to 64 mm

Very-coarse-grained sand^2 to 4 mm

Coarse-grained sand^ A A-I U0^mm

Medium-grained sand^ +4; to 1 mm

Fine-grained sand^ to imm

Fracture Spacing

Very wide fracturing^ >10 feet

Wide fracturing^ 3 to 10 feet

Moderate fracturing^ 1 to 3 feet

Close fracturing^ 4 inches to 1 feet

Very close fracturing^1 inch to 4 inches

inch to 1 inchFragmented

Finely fragmented

Hardness

Hard to very hard

Moderately hard

Soft

Impossible to scratchwith knife blade.

Shallow scratches withknife blade.

Deep scratches withknife blade.

Percussive StrengilLof Rock

Strong to very strong

Moderately strong

Weak

Not broken by repeatedblows with a 21bgeological hammer.

Rock broken by 3 or 4heavy blows with a 21bgeological hammer.

Rock broken by one blow(includes brittle,fissile, friable andflaky rocks)

Page 36: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

— 26 —

APPENDIX P.

SVARRY SITE ADELAIDE RIVER GORGE

Assuming the proposed quarry floor to be at R.110 250 feet andusing geological deduction, 580 feet of drilling and 800 feet of costeaningshould prove an adequate volume of rock—fill material (about 1,000,000cubic yards).

There will be sufficient drill core to silow. an estimate of thevolume of fine—grained material present and to indicate the effects ofcleavage at depth. The core will have to be logged and samples subjectedto appropriate strength and durability tests.

To prove an adequate volume of rock—fill for contractual purposes,an extra 420 feet of vertical drilling may be desirable0^fl'his drilling,however, would presumably be undertaken at the design investigation stage.

Should there be an inadequate volume of suitable material, theproposed quarry could be extended horizontally in any of three directions,or the floor deepened, and still remain within the greywacke sequence.However, phyllite would probably be encountered in the quarry floor if theanticlinal axis is followed towards the south.

The drill sites and specifications in the attachments differ from. those previously set out on the ground.

ARG 8: This position is the same as that already blazed andpegged as 8.

ARG 9: This position is situated immediately above a conglomerateband about half—way between pegged positions 11 and 12.

ARG 10: This position is fifty feet downhill from that blazed andpegged as 10.

Costean h—h', 200 feet long, is to locate the Mid axis and to tryto locate a conglomerate marker band on the west side of the anticline.

Costeans j—j' (100 feet long) and k—k' (500 feet long) are toexpose the sequence in the area of no outcrop, to locate any possible faultsand to locate the known anticlinal fold axis and any other fold axis thatmay be present lower down the hill.

Page 37: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

- 27 -

SPECIFICATIONS FOR DRILLING

DRILL HOLE No. ARG 8^TEMPORARY^

FINAL

TYPE. OF DRILLING: Diamond drilling with NKLC stationary triple splitinner tube

LOCATION: Quarry Site

OBJECTIVES OF DRILLING: To determine the stratigraphic sequence

SITE INDICATED By:- Peg painted red and blazed trees

DRILL SITE PEG, CO-ORDINATES:^E 1226000N 9935050

METHOD OBTAINED: From photogrammetric contour plan C & L 430/D

DRILL SITE PEG, R.L. OF GROUND SURFACE: 390'METHOD OBTAINED: From contour plan as above

DIRECTION OF HOLE: 278 ° Mag.^INDICATED BY:

REQUIRED SLOPE (ANGLE FROM HORIZONTAL): 45 0REQUIRED SIZE: NNILC

REQUIRED DEPTH (IN TERMS OF OBJECTIVES): Drill through the stratigraphic

sequence in the area of no outcrop.

ANTICIPATED DEPTH:^130 feet

ANTICIPATED DRILLING CONDITIONS (STRATA, STRUCTURES): Conglomerate,greywacke and phyllite : Hard, abrasive drilling

WATER PRESSURE TESTING REQUIRED: No

SPECIAL REQUIREMENTS: Core to be photographed in trays. Core to beplaced in trays and kept in good condition for future reference -preferably wooden trays.

SITE SET OUT BY:^ DATE:

J.B. Braybrooke

ENGINEERING GEOLOGIST

Page 38: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

— 28 —

SPECIFICATIONS FOR DRILLING

DRILL HOLE No. ARG 9 TEMPORARY

FINAL

TYPE OF DRILLING: Diamond drilling with NMLC Stationary •triple splitinner tube.^.

LOCATION: .Quarry Site

OBJECTIVES OF DRILLING: To determine stratigraphic sequence. To-^investigate cleavage at depth.'

SITE INDICATED BY:

DRILL SITE PEG, CO—ORDINATES; E 1225860N 9935095

METHOD OBTAINED: From photogrammetric contour plan C & L 430/D.

DRILL SITE PEG, R.L. OF GROUND SURFACE:^414.feet

METHOD OBTAINED: From contour plan in above'

DIRECTION OF HOLE: 278 ° Mag.^INDICATED BY;

REQUIRED SLOPE (ANGLE FROM HORIZONTAL): 45 0REQUIRED SIZE: NMLC

REQUIRED DEPTH (IN TERMS OF OBJECTIVES): Drill through the stratigraphicsequence in the area of no dutcrop. Drill 20' below proposed quarryfloor level.

ANTICIPATED DEPTH: 270'

ANTICIPATED DRILLING CONDITIONS (STRATA, STRUCTURES): Conglomerate,greywacke and phyllite. Hard, abrasive drilling. .

WATER PRESSURE TESTING REQUIRED: No

SPECIAL REQUIREMENTS: Core to be photographed in trays. Core to beplaced in trays and kept in good condition for future reference -preferably wooden trays.

SIZE SET OUT BY:^ DATE:

J.C. Braybrooke

ENGINEERING GEOLOGIST

Page 39: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

SPECIFICATIONS FOR DRILLING

DRILL HOLE No. ARG 10^

TEMPORARY^FINAL

TYPE OF DRILLING: Diamond drilling with NMLC Stationary triple splitinner tube.

LOCATION: Quarry Site

OBJECTIVES OF DRILLING: To determine stratigraphic sequence. Toinvestigate cleavage at depth. To determine plunge of anticline.

SITE INDICATED BY:

DRILL SITE PEG, CO-ORDINATES: E 1225505N 9935080

METHOD OBTAINED: From photogrammetric contour plan C & L 430/D

DRILL SITE PEG, R.L. OF GROUND SURFACE: 340 feet

METHOD OBTAINED: From contour plan as above

DIRECTION OF HOLE:^109° Mag ,^INDICATED BY:REQUIRED SLOPE (ANGLE FROM HORIZONTAL): 45 0

REQUIRED SM. NMLC

REQUIRED DEPTH (IN TERMS OF OBJECTIVES): Drill through stratigraphicsequence. Drill into core of anticline to greywacke-phyllite

. contact. Drill 40' below proposed floor level.

ANTICIPATED DEPTH:^180!

ANTICIPATED DRILLING CONDITIONS (STRATA, STRUCTURES); Conglomerate,greywacke and phyllite : Hard, abrasive drilling.

WATER PRESSURE TESTING REQUIRED: No

SPECIAL REQUIREMENTS: Core to be placed in trays and kept in goodcondition for future reference - preferably wooden trays.Core to be photographed in trays.

SITE SET OUT BY:^DATE:

J.C. Braybrooke

ENGINEERING GEOLOGIST

Page 40: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

APPENDIX 3

GEOLOGICAL LOGS OF DIAMOND DRILL HOLES AT SITE t

Page 41: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

PROJECT^A0142,1 CIffOle^Fk ; v iwv-- _a_o_r4g,Zgkw,aae.No■ HOLE NO

.9 IR c.^1

SHEET --1-

BUREAU OF MINERAL RESOURCES,^ •LOCATION

GEOLOGY AND GEOPHYSICS .^ ...^ 90^ IRE^;GEOLOGICAL^ ANGLE FROM HORIZONTAL^ D^CTION th" 4cc. 1LOG OF DRILL HOLECOORDINATES^ R L

a^tsPFrC O rvWEATHERINGF :DESCRIPTION

, ■TH01000, COLOUR, STRENGTH, HARDNESS, ETCG RAPHIC

.00°Er^f NACWRE^IT

SIZE 0°^.-00^% CORE -CORE^RECOVERY

STRUCTURESJOINTS, VEINS, SEAMS, FAULTS, CRUSHED ZONES

5 „,--1i ti'

WATER PRESSURE TESTLOSS An gallons per minute per tool

1^IllIliLl

g

N o

COr. ere

Co no re 0( , Mt: I 1(^'^I1^1^J^1

,^1^1

rnocit,t5-/-eir^40

Iseatva•ve

L.../ fitc•fis e.ns ofAn 6-7-09 -

a as yt./4 eje a

1:31661+, P1--.11 C■n01 •••14e, weak

'40 ValookIllAhLy $4-ne• ...

•••■•••1•10-ately . bla0-01, 4+ e`iL. -Veal.. 401^en • Ga2, C. le • n $

9 ......r....1.e.^.....:i 1,^Son1.6. 9 k iy^1...c...ofiks•-...1 -11.%;,,

(Ie.,‘ / 9 pity ili,l;c. ; 44 .... 1,04 s

G..-....las^;....4-e.

09 reywa a ice-.

.4 4_^c I,

/5 / cc e-e,4^.//.2 •,

...eel a.

\ \

\ \• ,

\ .

\'- \\ ' .\.\\

.

.

g7 '6"

1

Mil.

0,4•00.001II:01• ig

0111.ral0,11110

1

00010,:..al00-1011II^01g1101P 000 01

II

11Ma.. y -r,,T..

e

-6..........s have..,

0

.'•-•^?i,^iely^/..-P//:I ' 'D^ '

10 jo...;iy 4'31•. °1-4.67

Sow&^of;i.-••^/0 , nike„...s

alp^6 .5 1.i:H4e^ceps.s.bedd;...1

/6'6"-.-

^

kot....,...4.;ie^yea,

. .

1

111

.

I

1

,,

I

1

1

I

1

iI

• !„

.

I

I

1

I

1

I

.

I

I

I

I

1 1

IL

rr odca....1,4s1Xwea-11....-4 01

M E TO -

a Reylves c ,Le.""•

.

Ph),IIN.^r-.4.3^i.. -1-0^p:...kL'-•••4•;)1,41L,^.....o..t.....44.1^54.-.,4., ri^i_ _ _ _,^'...3

.^...e....3 ,^...n.^-.....-.., .na .CaG•0 n$^a .-4.y .........1/44,..4%.*.a.^3.- c..4•4*.re. -lea... - .^49.,,,..4.4 ien,i .

F. p•ek.l.'^55 Cane nsOne-.

6/.4.1,^• .y^• --^‘...•/.2....-;,.., .

P.-aces : I " - 1 2 "

••••.•4 e.^!^5 "

\\\\\

5

.

• 64 . 2 -

1

1

.4,I

I

I

I

001112

1/galOPUIiinilli0.201011:00;001

1111pj 0.

00110.010•

11011.01:AllraiV^pi.0110101101'APO'

V'^C. iny Zi/e4^TnatAn-a•S .

••

;•-aol ,....-as^:4. k^L.

4'1 .^be.:^;5^4....e,iX....-.,^- 6'eadea( ,

C,......4........5^01, s^c s II 0 •• . ,go,,.^st,sideat^,......-41,..,^-1-. Lay^4e x-i“.-ei

^4 .....44...v.s^0..-4-1:„.4^‘,..,,

re 4-4.;...:., D ,^.

10 di2,01,PE/p;

10.2006.10.4i!Ifig

iii..;.01100.1110.0-0ogl igoOlga,On001111;a01PiO.00200ad...,upzippr..100P090011:0°oc.- do•Orisi00.1AOC.11:41.OP '011.,,,ii;11111imod,1000111201111illn 00,1101aaa -a15.-/p.0120110,00,1:001111•1100l0.0•0

e$011151.- 10101$0111:00dirilielP PP0.11/1011PP I

< coSi y^4.••••.4.....-eW.

pk7/Mie..

co.,..,44.^3 ..•••;•• •■••1^',Lye ,-••• . 6 ke .

\\.

.^• ,....•:.

‘..

f.••••^eroos -^b0.4.1:....5^; „ ..e.^.

9.-e".......... Le e. ,

.,4'^6.1y^r9^.....s.-1....&•1^2 • . 4. ,e......4.0,448../^of base ; an ;Cno.g,,...114^‘.44‘,^1...",^si...,011....hph, k,^4'. 9 . 1 ,....."•••a.k...5 r.....4.4

1.••40^p;••• if 40 p Ir•ser , owaabiraiely

-iv ^anedoeno,44k,

kesrtli an4SA.ne^C.3. 5.1 10^) '

.3 ...."........4ce .

piece/ : 1 ' - 16."w^,.med..:^6 - ir

.

\ \\

\ \

.^\

e/ e---^,^4c^s-^..axa..t....-...a4

^

so...^p ,,,,..-f&^vio...:..., •

re.....-1....-• s^,er.At„,,^0„.1.1 / „.. 40k

6^li...o..:4 e^3-1a;.......5,,454,311),^..1;y 1...t^5-

a^cle...,^-

:entail^w.e.^0^45..^'.--•

4k

-...e.•4$^.0^jr(.. ...^k^3 ed.d:^•yr^6 0 °

,

/4.• °se iy Traz4...•&.‘ A 31/ck. -

s/.51.50..

^7 .- 97'6" chass4^-1'^+ ..,,A,..^..." ...

IVO+ •••;esse.a..• 1,^4:2 , -ge..../....t.c k& ,

piocsj : /"- /0"

.Si:^C"6 r

...P'NIC4iana4a.ly^4...

sii, taiir aneMA•Pal..1

f/Wy.t.t../TE.

.

\\

DRILL TYPE^ iftet..fiLl_N.I,T12

FRACTURE LOG^Number .1 fracture. o.• fool 01 core^lanes at rare loss are Mocked onBEDDING^AND JOINT^PLANES - AN',, are measured relative to a Wane normal to the core Olos

C.43- , 01.5. 1 9,^:. teelyrmeAMIA ,M1 11.4^(.424P,, .^SeleLeadt

"Tv^:^InalIca4a5^e....401e•sce-^of^skee...I-.3.

,.-

.,.

.

WATER PRESSURE TESTSFitt)^-^tiyal ......?,41 :C.^

CORE BARREL TYPE^-r.- ;p i ePACKER TYPE -

SUPPLY I IRE - - _ _.$ fe.13^j,,, e,,,m.^4,,,,...be...

DRILLER __ ...a._ rilf,A;&_

COMMENCED^16 6 .

VERTICAL SCALE

`.a.,na.an au. gauge pressur•*Test sectIone ore Indicated proohtcolly by tome.. el,*

PHOTOGRAPH REFERENCE SYSTEM77

COUPLE TED^q^- --

LOGGED BY __f; ir-veb.o_e_kre_VERTICAL SCALE - .1 . -_,s- IQ #-. -

BLACK^AND WHITE^.^. .

........-

COLOUR^ _ -....,

- --- --

Page 42: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

,^ PROJECT ^14444da.144 411^Rj.vdte-^Ciplip,^;,...L^,^Neff. -^..,

BUREAU OF 'MINERAL RESOURCES,LOCATION

Hsu ..i

'FIR^I

SHEET A.. OF

GEOLOGY AND GEOPHYSICS

GEOLOGICAL LOG OF DRILL HOLE^ANGLE FROM HORIZONTAL^90^ DIRECTION^I1e•44 404COORDINATES^ -^ R L

ROCA 'YR(• DE OPEC^Of WEATHERING

DESCRIPTIONoTHOLOGY, COLOUR, STRENGTH, HARDNESS, ETC LOG

DE:TN^nizt^LT

SIZE Of^LOG^% CORECORE^ECOVCRV

STRUCTURESJOINTS, VEINS, SEAMS, FAULTS, CRUSelE0 ZONES

tt et.3 '..1

WATERLem A Q011001

PRESSUREpr. mmte

TESTper foot

-.6*

• '.^...EliSl;3 1,4-ly•weete+kere-e-0(

PHYL.t..ri- a

IN

(.....+1.4.1.4

Pria4a-a.6/44%.ke'

4,.......,,,..444, fo,ic 01,1.-,,c9- 3 ,....cefereei-e.ly^s4,....1,^seT-4- fact....a 4-.4.5.^t...- ..r . el.,y/ .

c.....4ev-s: ....i.e....^-k,a .SeJ4e3s.^cu...4 chie.-ilte .....

r......--6.-ex^...Pk.—poush....e^9- sthdee....s41.4..

pke^a 1

e.es :^I^-^.R.0"

a04eypir4,..2) ."0"4"0+84y !"."4,

."1.612:eeStalsYe' 4:29"-.^7

\ \

\X\ s

\ \

\ \

\ \

\ \

\ \,

\\

\\\\

\ \

•9

\'''Iat

N.M.

•01

._.-_,,,,,

.4F.

I^'4.

I

1

I

I

I

,00,100

%Ai%poopg0000.194

00$$09•4

Prgi#000g400,000,506

Opifi;rlOof.40,041,rro4010

PPOr

gOr 01r;,,0,4'40

il

lOorl

Coi• s/Ø;

F°01, •

4410+.4•41.2 of+ltart sUc.kaye-.s:4.4- ....1^..,,,...L......+k6'4, ist- roe.%^of, i.sy.:14. ,

ae4ot:•,0^et:ps^es°

Some.^ ,,,,,ar-lia

off:-55,^

0.1...50,7 Teim/4.71■4.

1$6?'-• II, '^C.10.1'447 Areft•A....eig .

G

,.

.1.,

aP '- /24^:^it...4 1y^-t,-...4.....i....O..^se....e. slax.. .

_

'..^ir Ye

.,.24 la^• . .44'7 f^emwee).

0. ....-42, ve.:.••:..5 .

4° +661 V.9,0694;o....1 ave.-^"Viek+iy

We....044VIA•ed

.PWZJA:4"re

__^_ __,^51i9hily

weeeik e..-...W Melly

•G.-ey,.....a.ke .r

.^ ..e.SC.1a41*•■■^ais^effeve-

_ --_.— - - - -Gray, siee..v, rot. kwevi. ,wwest:ye.. e.g.,. Ses,"•""ke•

p ^, A.... ag " ,..10.41.. KC

\\

\\\ \

\

\ \

\ \-

.

"..

OW“

'50'

I

,

0610F,52000r

al;et^ea*,;.• tag.'^:^.

^wet's^•4;PS^v So

a^•

00

000p10#1#4$10000rA00$1ro

,00°0#4°

Ø0r

.

— --^- ^Se.... sww-1-2. vets...;.9 .

c-4 .44 ..'^-C-a'3--•-s •

'

E ... 01 o4

,

\

_

Hole.,

-

i

I1

1

l

I

,

.,.

.

.

DR ,LL ', PE^111;•'01.48NOTES

FRACTURE LOG^Number of fractures por foot of core^Zones of co,^loss ase blacked inBEDDING^AND JOINT PLANES - Angles ore f1160.11d , .10110. /0 a wont normot to the co. oats

WATER PRESSURE JESLS

PACKER TYPE _ ___ _^_^_^_

SUPPLY LINE -- .^—

VERTICAL SCALE

T IED —_-_fri-ySkt42, Et. Ke. ^

CORE BARREL TYPE^,;pie.-1"_ Sfisli_;,..see-^-Lbe.DR•t.ER_ ae^rile..1:z.

Fes, s•ctIons ore tnolcoted ormshteo. r RY smAIHM^. o'REE

PHOTOGRAPeREFERENCE SYSTEMCOMMENCED^30/-7/66COMPL E T E 0 ___V2.1"

BLACK USA) WHITE^_LOGGED 7)_14104,14L

VERTICAL SCALE — -

COLOUR

Page 43: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

PROJECT

LOCATIONBUREAU OF MINERAL RESOURCES,GEOLOGY AND GEOPHYSICS

r ^DIRECTION 3 5 • Masa 04 41‘.

GEOLOGICAL LOG OF DRILL HOLE4 5 °ANGLE FROM MORIZONTAL

SHEET^ AL^COORDINATES

LIFTa

% CORECOVE

uRELOG

memI.OG1 SIZE OF

CORE

Koce TYPEIS DEGREE OF PE ATPER1NG

WATER PRESSURE TESTLon ■n gallons PP mon99 04v foot

1^1^ 1111

DESCRIPTION•HOL OGY, COLOUR, STRENGTH, HARDNESS, ETC

STRUCTURESJOINTS. VEINS, SEAMS, FAULTS, CROWD ZONES

co Cart& Co^e 40(

Ft.k mnd

steoal 80-4

+o R4Lykgiv-aL ovaa -ka -s reywo oke:.

la,"&e. con s; 6450 ^se,a.^9....ot

Cas,re...^ent:1+6.

r-Nyw isc3CE. ()Now

iVA4 9-+2 a 'NU^;.1s

99•00.-9, i^•^Set-:sti•m.mead r..1.1..-3

et.4■....t ,ae +0

pl y /1. f_ , s1;9 1,..+Iy•Co licafa el 9- Lon 6; Gri in 9

trr^5....teNe,

ex....49

wto448.-.44aly

we...14 1 yweoike,ed

Pl Tn -

aREywig c.KE

5er

'3" I

• .•

• ,AS 6

• .

ptcoo.3 of retwe4ve..

3*-^• •^11--to

paieces of p4-7/64e:

a

Afteeiela.^°

.10:01),0 111.0 .10°00000

10001000°00°00000'00°

00 1111

i.;.'0010 0 100-0101:0 100-00000.00 .

0.0100"0:0C

%

0 .11.0.0190

.1.10

evo

010 :0. I 00

40/..

04*04 .051iOLIO",

w0.0.

• W oo0,0 .0o 0.0

010°.060,1•0.000 or01000000

o0000:%.01111

Mil

IL

.000_ONO!090:41,

m 0000

0000.01.101.

a

4.-5: Hawoolly

— 'If^ b

d- go 6 :^atarralof

^6 11'3 " 2 "^sat, day

4;1144

^XIS ku^als t^rEywra C^, A11,6i

.1, be cit.,4 ,1,ww9k 4loarport ;;,^a.% lo qo

a; ' IF ^coma, 4,44.am

Com n 66:1•Nof. Snen •"rf"ine:le 5

eteNSGisibie n4iSL fie's f 50 ' s

have -W.. C.4007 ta; m9 my".

4. t4"41.•cic,. P.04m3o-50'

75.- crQ°

I.^41.; ,^64.011.e4t2,0n • .

SS^°^ket....21;4e,v*.;., 47,4001 75•

^p ky II;^bo_as,-C+a^6 ,Vir, 0 *- sj 7

41.5!St: aka-. 544 s^s

rallat .

64re- 60' 6 " G'S.S^C lay --C; it at.at

70'- 70 " ea..40,rod,

sltalea.,statta ehyillie.

6•41,1;.q d.p 10

DR I

E E 0 _ __Kyriar_ea•• 14C_

CORE BARREL TYPE ^

.Sit4+^+Label._

it E^• Wito-.: 2,

COMMENCED 1L1: 64CONNATE° fg g 64LOGGED a. 3243!" 4109brNao,

1vt PTICAL SCALE _^•r". 1° -

NOTES

FRACTURE LOG • thenber of Pampa per foot of Coto Zona of Co.. Mu ore bloated in

REDOING AND JOINT PLANES — KatUs 0l0 beacrea realm* to o Wane normal to Km core alia

WATER PRESSURE TESTS

PACKER TYPE

SUPPLY LINE

VERTICAL SCALE

hat. Pao o•• 50551 preparesTat actions or, tn4icota gtophico0y by lambed M

PMOTOGRAPH REFERENCE SYSTEM

SLACK AND WHITE .^_ _

COLOUR

Page 44: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

•••

.9

PROJECT^;1s .ititliMarrefiell"1111E,^3...^Ale.BUREAU OF MINERAL RESOURCES, LOCATION

^

HOLE^F110^•

RR G. a^SHEET a ^OF &-

GEOLOGY AND GEOPHYSICS^ •

ANGLE FROM HORIZONTAL^• 459DIRECTION , 0 0^010, w 4.4 i cGEOLOGICAL LOG OF DRILL HOLE

COORDINATES^ R L

ROCK TYPE• DEGREE^OF WEATHERING

DESCRIPTION,ITHOLOGY. COLOUR, STRENGTH, HARDNESS. ETC I^LOG

LIFTDEPTHp^RAC'URE^p^ STRUCTURES

I SIZE OF I^LOG^FY. COREIPI JOINTS, VEINS, SEAMS, FAULTS, CRUSHED ZONESCORE^RECOVERn

ix ,b.1 u.1;7 s

WATER PRESSuRE TESTLose^w golloOS Aer mmule per fool

I^I^1111

a , S

We CA k i y

W4aa+kee-eca

114 ET A -

AKEGREYWC

-

. w

iiallii

.000

0.00

,,,,.

0

A 101

0

r

%PI;Weo/F:111

igl:e0.00.00,1

0•0•11000,

•1010,'irroloroillICOtS;....or.;•••••0000:0.000000 1• 000110.001'00001 .0.0.10000

000001!.00

00010°0_41grid.0"Oil

0.01rkilid0.110 10000/0000.0. 11001.0..00°

1.7100Ei

0.0010000:$00:010010.OROgrill!:°:;171110:,01:0!01•01.1.-0000410:011.4011—0000006006

0

010

le

oP

ale

III

i

1

I

ItEI

1

11

.

i^1

!

•jeel V.- Sea. ': k &ex., : i› ,

.f-eltar..-b..., e...I •R.. k- 9 ray , ......divolle.lyto S 'bro." .

.....11o.o.hly IN...4, ....o.in!Per iv. oat .... -^..de.so.likeloie.bove.,C.1 . por410.14 W11. wt.",

a.4.-44....____

E•-._^.'^•

_^, ,

c....1.- .-Ces--^.51.....p oil' be44;^3 (bps 25 0he.4,.........^3.-...tio.1^bo4S.

r,.....4,..- ;.....,^..,... • I. ad-

a W.. .

0 0,44A4,^04:p$^/0 °

0p44,..3 ; 1 .1 4.

4 - I I "_ "o4,;

___-• . 34^-

.......■ --

I44e4 '' a 4,..kika, Aky .

4a4.4 1a. .s4" .I

45^Dna...iv-4 , -r.^. b0".4,3I.^-Fru..4"....4^an.'

6 i;^e.15.-4001.

—• .

. 1+71.II

..•

-

E " aef

__

Hole_.

I

1

t

H

I

,

,I

)1I

.

I

II

I I I

t1^.

I

1,

I

ORAL TYPE^r"411', .. 1 /LeplEg^.

FRACTLME LOG^Romper of tractor. per foot of core^Zones of core Ion ore Wenn in^.

BEDDING AND JOINT PLANES - AnoNs ore meowed relative to a p■ele norrno■ to the core owe

.

'''^&^'#

WATER PRESSURE TESTS

FF ED^FiyAnam, tr.C...—

CuPPlY 'NE - - - - - - - -VERTICAL SCALE

4.0RE •ARREL TYPE^Te;f1 lesp I; lc^;•.....,^_ +... be. s__

DR — ER ____.a. nlo•N; 2._ ^COMMENCED^—ALI 46.___

■-•vres p•von are gauge rrien,r01.,r $0,Jorlf are melcofed grateh , ccny by bk..^n %woe

PHOTOGRAPH REFERENCE SYSTEMCDMPL E FE D^/7 . .6.: 66COGGED ev 7: Br-aybevokp

Blb, ANO WmIT^.^_^. -

Vr I/VEAL SCALE^I " '110 '

.

COLOUR^'^- ----.

___^—

Page 45: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

PROJECT^fideAqi cie^Rive.-^ove.^pc%^Si -+v_^No.^. NOt E NO

19 g G 3

SHEE T^I^OF 3

BUREAU OF MINERAL RESOURCES, LOCATIONGEOLOGY AND GEOPHYSICS

coGEOLOGICAL^OF^ ANGLE FROM HORIZONTAL^---,-

..„„r..,a^DIRECTION 135 0"1 .43"63 ;(--LOG^DRILL HOLE

COORDINATES^ R L

atoce^TYPE5 DEGREE^Of^WEATHERING

DESCRIPTION

Of HOLOGY, COLOuR, STRENGTH, HARDNESS, ETCLAC

,OG"PT^RACLRE^1StLpF^LOG

RECOVER

srRuCTURES

JOINTS, VEINS, SEAMS, EAULTS, CRUSHED ZONES.

. 'La tili ,1

WATER PRESSURE TESTLOSS^n quAo55 DO, mInut• RV MO ,

1111^111^l

g'

14114.4v;kotereN,

.••••■••

$1,;•Ci-^Rap...-1-,

ti2 10 °- /4.4,..t oint,, d1 —

(S;°Y "Y)

i -44-T-- 30': Scitt...14...4^.

(", 1 5°I, Gorlt. recover-y,...e:,.1),^461445•42. plIA410165

0.0.04^reroo,Oke^bp t..64-,3

--^—

.

.....

OSSold .-t s a -1- ' -

7......

to

ti

,^.

.

I

I

II

I

I

1

I

1

I

I.

I

1I

II

.

I

I

1I

'N.-._-.

o

o

.

1.1.."..

• -\/"..

0

sa^'rn o d e•-mlf 41 ly

4.0 w ea 14. fyAA/045+1-ACO*4544,

rn E "1- 19

aitEy wrscKE

...-..-

P kA^ot.^.1 'tray,w•edsee+ely 64o. ^4.64O0.5,r splOoleI10 -bay

ha...4 , ' ..... el.1- go-ey -"'"ke .

SarAllosCe.^co.s; cri s0f 9.-.4•d^be.ols ,

c . q .^sam.I ef a...a.^4-4.

--S;t64155411. ;" 9"2., s-; a a . —.,,,_...n,^.p.-...^ii. ,4s— .

•• II

1

1

1

gold....,OpliOdOWk p- ."ro0,100air 41510 ••9041/a5050POIFOP00000IMO;40.4,R; IPsosol0000.0000°0001°Ø010O$•-••00°°::000000000000000•t030!1•40120:004000111.141

050:1101100. Ord0•:,

ØØØØ 4:00,./ 13:

ao

1I

H

ii

I

1

11

1

,^1.^I

t!

I^■

I^1

8B.^3 .°^usewriS- S.se..etcoti4e.42^.^.%

l'&'14:41.f""3 75.,_° ; L- 4." e'. Ate4-...^OIB.4.;..,3 •N•^J q '

IC-rocluo56^of4tAi^;o.o, 15103.014,

.F.^o *- to°,^ao°^4o*-6 6 7 'L.c,,, ...l ie^• C r.,'^..4.....ss

4koLoe 'woo& 40...rAftoos^ ,e-

4'^,A.4.6.^ i^tollouo beollaii.s5 .

-^-^• .

■iewia‘y— ,e, of-le.. 46 r C6'1. 6 1 '1 ", .0..^„...„. _baba .9 , • ;.) Isf woo.›. Ay,.

.._.....__.

•••^.

: : •

ceviss- ileoldeol.A

R:ece 3^:^i "- 30 "-___^ s

74' 4.- 1rvso.7^C.o.4.4.4s^6 e.-.I., e• ..,

4..9.^x• u.k•., 6.4041,

bald;^01;1,3^5"-^".n oole^.^5

• •• •. • •

II I IC "

444 b "'-q oys 0.^'*-

E* I ' .^ii

92., iIl

- _' ••5 -86 .6.•^e.,,,,,z ..,,,,d; ....3 9...

Sc.•■•••-• •-••••a•-ks - .-; 1 1,4 ,.....,.., „F_-

-.

. 4. •^'^V 4. '"Iti.d 'IOC lay^■lieof^z.o.a , cd,f• 0^1:,

- 9: .'3': :Iles964"

4'^' Ill

,^A

•, 8 Polosfr,--5; 46.1^40...;%.• 'WIC^S keg,-

•"°,.4•"^".5ut .4-y;...

f 30 ' +0 ....., 0•1,.4 ■•,, • .--,^o3^co • ... co ^..,

op/ osNi^,,,.(;.--..e..-1;e:.t.. _

.^.•

con.t.^TYPE^;Id-_ft rit_Dllt§

,RACTURE LOG^Number of NoVores or foot of care^Zones of core Ioss o•• bloated in

BEDDING^AND JOINT^PLANES - Angles cve rneasurao rsioNve to a piana norm°, to the core Call

)

,

WATER PRESSURE TESTS

FEED^Hyde-at...1;c PAcKER TYPE^_ •^___

SUPRL Y t ME - _CORE BARREL TYPE _.^T.-:1:21 ..

_Sp I; I.^;,,,,e...-^I -,-..b e_ VERTICAL SCALE

DRIL,FR^Ca^grOICEn ; Z. F','''•, ..•^ .'• ga.p. PressuresTes• sections ore Indic.. Cr1(1111.11,^by^PlatIma^■s, str ,ps

PHOTOGRAPH REFERENCE SYSTEMCOMMENCED^24. •-:- ^• 6 6^I

13.9.66COMPLETED -_^.^_^-- _____

LoG5CO BC. I 13",Lyb.-0 0 k e_.L., , •^SCALE^1' 1-11.,

81 AC K^AND WHITE^ -^- -^-

-

COLOUR _ _,-- — —

,

Page 46: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

•■•

PROJECT^A id 10.14S i 44 a^Wye."'^0 I. e^ot^s ;+.4z-^No.^1. HOLE No.

/9 A 4 3,^•

SHEET -2%. OF _12—

BUREAU OF MINERAL RESOURCES,^LOCATIONGEOLOGY AND GEOPHYSICS

ANGLE FROM HORIZONTAL^45 °^ DIRECTION I '35 . fr169" ."41'GEOLOGICAL LOG OF DRILL HOLECOORDINATES^ R L

ROCK^TYPYA OEGREt^TO^wF•14[ItItNG

DESCR■RT iON.7,40,CIGy. COLOUR, SYNENGTN. ol■Roon SS^t Fc SI LIFTDEPTHa^RACWRE^a

SIZE Of^L OG^rY., CORECORE^RECOVER

.^STRUCTURESJOINTS, VEINS, SEAMS, FAULTS, CRVSNED TONES

_i

..J

WATER PRESSURE TESTLOOS .., Owns per munute pa tool

.51;tkfly

Wit•-111 e, caltY1 ET A -

aREY LA/F1C-4(E

0 _

•. 41 .

"Is.

I Pill$ 04E

A0,0'0FOP/$01101000$0$00Odi •00;000000

/000000000i:t0gE020Fifro,0%101%I . 0 141 AP 0 I I

0000dOotgpoor,r„,,,,

o, 0ogo,000odo...

-‘:.ely^ceom- 118.tdad C ..:9 1.1.

•**• a)" •••/0 ) 'Cm..., le 6 • - 100

..

_

adoova. .^.--..._ t. iv; ' 4' _^frUckensieledconiac.+,^krs^0°

Pabisla.s %...p +a:..,--

-..-

Its '

I

—.^•.•..,...,., Jog ',^SUPleee.1;c41 Cse4Cle-+

•2 "g I " *cc ..-,- ..-30.14.^CI •^6 a '''''As •

—____

--:.•0'"'6..-fle'Ve..-4.4-$.4...4144toe....^.1.*^a^op'

..^.'^•

— p%ece3 : 2" -rtmode :^c ".... 42.-t•

MD....1""

.2VG"4'

as

I

I35

,^

• ...

1"re: "an^froc.i••••4 ...4.1.,

0^t.^.„.., A^4.42t.• ,

.

ia0 .3 "- /at '• •Crw A...4 y

sti.e..4-....ii•lea ,^4n:wk....es .,,,,^ie. ,...,...^•

7"=

•____

_ rd.. ,. LSO '^ea st:cdee., 5 ;0441

r;17111110°00%e%0000000000000:00000%00000

010004 04,°P;$1$00$

00°000ø00 000°$0

0$00.0.0°0000004g0g16;0

10.,,0

0'0000$0000 04

gogo •NO:0001orooop0000o0o:o$0$0go0o:goo$00000$5o.00oo o.0.0.pill000..o.%.opo,,.011101,00dP0•10Ed0,10.raw01111;000000000

00000000000000000000000000d 00000 01000/00$I-0/ 0gogo,0# o

710o:oooo oo

godogopoptogiolPreeroe•• •

.c-kle•- 1-4 6.^cc••••••-...3^j 0:-.4

d *^-^°P° 65

•I

..

?eurca.a.r. a°I1P4

'

___.---"=.

_

144.-e...M./

4.,____

• •

.

•^•

• .

• •

-.

--.--,

,^•

i

,52'053'6":c.tosaiy4',..c.'1•••-ed 2.•ne^5 I i ck ant ;Jed

f-,4te.1,4e. ea^ates 65 1°,^1%.,s kic•P:40^:AtIli.^-^..,.

o.4•4...., cl.',4.,,,,,,..ad..•es^04:e co"--tp•

____o•tr

7:1/4w

44-LIJ-•

i.5•13''

4 '

—'...",,,..

0000000loo

^r ^4^4^b 4

^

...c•••.^c.c.^s^r-• was a ....

^c.9. ^,- -1'. 9 .^60.01 s^4,44le^40 be.^eficen 5 ei:^e d i

sio•-ittel 0.4.•

c

_

.

.

_—_

•1756

.^.

• -•

.•

••

•..._---

---.-.

ta5

••.

' ••

•.^••

• I88

I

I

, •.^.

• •

.^.

• •it a 4r„,

i1

to ,6 6...iit 1 :^-g...e. •locteS

4e.td; ^9—

DRILL TYRE^ON." RI TN;11NOTES

TRACTURE LOG - Nue*., of fractures ow toot of ow* ZoNts of coo. on are Necked .

WOOING AND JOINT PLANES - Angles an measured r4rtiva to a atone 00m01 to tha cent atm

r

WATER PRESSURE TESTS

FEED ___.--aY-40-r0.ia-Ve* PACKER TYPE

SUPPLY LINECORE SARREL TYPE^1.•••:p i C.

VERTICAL SCALE_1:4^_;k ,....0.- .^-4,..be .

DANA ER^C.^rvto ...; 7_,. noar•s goran or• poops praaborosTaft 'actions orb ibalooTed otablitcony by (Pablaba,n OrNia

PHOTOGRAPH REFERENCE SYSTEMCOMMENCED^it4 . SE •fgcomPLETED--L-A . ..I-1.-i; 6 ALAo, ANO WHITE

LOGGED Br 7. C3 nay 6.-ecice.VERTICAL SCALE—.1....-F--410-: ---.

COLOUR

Page 47: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

PROJECT^AJeldida.^:13k; yes,-^or9e^D CA vV1^5 i-i- e^No.^1. SOLE NO.

A R a 3

SHEET 3^OF 3

BUREAU OF MINERAL RESOURCES, GEOLOGY AND GEOPHYSICS^

LOCATION

FROM^ 45 .^DIRECTION 1350 043nc+:c-

GEOLOGICAL LOG OF DRILL HOLE^ANGLE^HORIZONTAL

R LCOORDINATES

TOE.^TYPEA^of ,Prf^UP^Wf •T HERING

DESCRWT ION

. THOLOGy, COLOUR. STRENGTH. RARONESS. ETC

opp.pwc

LOG

DEPTH8^RAC' Un

SIDE OF^LOGCORE

LIFTa^ STRUCTURES

% CORE^JOINTS, VEINS, SEAMS FAULTS, CRUSMED ZONESRECOVER

Pc --IwW.^ '

WATER PRESSURE TESTLoss ,r, gallons Der minute Pa ,^tool

.^..

51:904.

tve.askt•tai

METAcikeYIAMCk E

De..5C.,";12-ItiOn ctsafoot....

•P;ec.s.^: l'_ 2.6 "^.ono de_^:^g"

• •.^• •. • •.^• . ,..,

1101

AO..00

rro.c.-KA"stS^cItS^qbova I.

• -^• aos 6^. ^.ve.•.,^- 4.^.v.ole.

EY, al^043^He le_

_

,

.1

,..i

1

I

1

„..

I

,1

1

;

I1

I

I

I

I

1

1

I

DRILL TYPE^"14.1:110.3) NOTES

FRAC-LRE^LOU^Number of fractures per foot of core^Zones of co.. lose we 0 ,000.0 .n

BEDDING^ANC JOIN ,^PLANES - AnoIes ore Pleas,. relative to a Wane gormoi /o fn. cafe ma

.VERTICAL SCALE^1 " ^lo '___

WATER PRESSURE TESTS• NyckaL.I:cto 4PCKEP TYPE

CORE BARREL TYPE^i P".;1, le SUPPLY LINE —^ —

540/;+^ v....se,^-F.... be. VERTICAL SCALE

OF,LtER_____—_Or_r60,0a..______

CCmmENCED .^3;14 • 1:J6 CO...LET( 0 __ 1 a ^q . 6 4LODGED BY 3.. araybrooke

rpg.rts ;wen ate poops pressureslest section. ore ...pol•d 0 50e ,,IPPIIV Pe PR.'. ...PO

PHOTOGRAPH REFERENCE SYSTEM

el ACP^AND WHITE^.^- -^•^-^. -

• COLOUR^ _ _

— — — . • -^—

N

Page 48: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

`; •^ ,

powacT^libE^PE^/non sweet Dam SITE.

MOLE NO.

RRG. 4.

SHEET ..../— OF

INGSEAU OF MINERAL RESOURCES,^toceTioe4GEOLOGY AND GEOPHYSICS

GEOLOGICAL^ ANGLE FROM^0 '^• TEL^41-^DIRECTION^/1r1.1/25.LOG OF DRILL HOLECOORDINATES^ R.L

ROCK TYPEN DEGREE^OF^*FATHERING

DESCR,PTION

, •THOLOGY, COLOUR, STRENGTH, HARDNESS, ETC

DEPTHa^RACTURE

SIZE OF^LOGCORE

LIFTa

% CORERECOVER

STRUCTURESJOINTS, VEINS, SEAMS, FAULTS, cRUSNED ZONES .- .1.

WATER PRESSURE TESTLOSS In gallons PLR IDIRu• PM' TOO.

NO CORE

66'goderately

weethe*Fed

PHYZZ/TE

ar.ren:*-4 grej• r fed Fe bandso Streak, ; mara ta ra cy a r,,,,"che.....n.sc^RAJ/ e,.re . '

------

-.Zs

-1----

-....

-- --s,---•

-... _....„..

---

--.-:P--••--- .-.4,/---

--..-.....

••••.......

---^-....-

....

_../

-.._.

• .

1

V

kIf

..

\),0C

''''

-...^......

—67'; /"^pclay . CA /CPA .ticc^o^• fractuteS

di, -,ras

-3 .

lf0,^F: bead,

pare et•I this.

..„.

.

I^I

Flociareta^t° -

ofer.r. *Ly

vvea thawed

SZRTE

Bleck ,fairty hard, h*:„*Aly

vrr, e e drred 5 ['sec ; eee•s

chlatitc.c rha..4 ishill,'t. ..;

4'.7 'lacer raft- , clayey,

4,•g417 .aea thereat'.

..s

,..,rf

.... 1

I

rj"'Kir

rser g rrir

,70 : wee*, 4/3iry crush atone

70'1"- 7.3': Iliyhl.y frac tared

73" - it '.. fe.s*rly lietri , We!'fractured; Sonya, Fe

Seds ./"./73 ill • rre.frIrr streaks

7.5"-t•Vf": num ***** e,'..4

zorrs wh•te matat:at highly-..r..,..i, c layey, e le•veje .

pe•ner ,01, (6..sA ad a. sl,ck•es.dre

711': thin gaartz pee',

...----ge: Cleavage .--,*'.,' Ma err, re ey

weathetaal

"swh/re"

Parrli se _Trey /lye( ire^Z.

p.a.', ehtarlte al...I

CraeCeres; coareined

than • earn

welZ !teetered , bat cleavage

nor AS Watz ...,....ae./...• ,, , •C•he sea te.

.s.-.• Fe ',ands brace:area/ bysnralC Jetta faults (a.isasA

\\,•• eAr r • .c , Aare., r/s;.0 0 ,...r'.aledera ceLj

w•otear•d

SLR TE

rei la three

t4..ft ,ohyttire

intorde de

.

Black , week^elate

1; madatateel strong

te weak^......

-0?

---

9?'

gg•- ye': A 4:54 ey thearedr';\poi/sh•e. ee.j.•oe.e.

eiesealef;66•44"4i/rsg• fIea^eli.reveeleae^e.r^ir

a Je*,:aens.deac.

SOO': Creel-era satfae. ari'`teating of hanvata'te.

...........----/02:". bands dlp-rao''.

103'-,0‘.: Fa band.; Icamtteda Areee L'e red

/0.1“- / /3' : senora/Z.1. h:gati

"re e erred; c lel V 13e Syria ref

pre,,:‘,4rd • el..f.rea‘•.....;

Il4r.: beddini r/.7'.

"/13 '-/20': Fe bends apt. s"wide ., most(' fiaeeeece to

deda...i, soer, •

4.ted,..ei e4e to Fe eisooe,t.:e

*slant, ireesralar creeks.

see. eh ,, fear, a. p•OZ03".

/21'; 5094.1C 'Carle pArreioz

4 eer•ik ,e; •• S4 ' date,,aza....eareoebeds • •ce OtrAlg.

IL.: 2'cresh lane.

1Jvz4'.'heaval1raetaredpat.'s hada..*Cleaews.'d../,

/AS': be.4.4;vj le; cleavage-4r%

/.27.I,Cthyleies ehrtes orn'ser'atattdatae.:05 Fa aandr;Inavaaa•ne

seracasac Ar.r.'ly eheer.,4irrie.

Alf '-/44 °: sto.re 4.. vs' (7 "rerereerjMr 44 ,eoe :she ... e ...rii 44 e.re...aVery;eheat,‘We ezOaraie fitanes ,

,39,„ig'4.• • ssy•'$;••••• ma ,*.> c re,,,,zo/s.s (each ...PI).

41.- /4, V: See ee sa'a**Xat taaewte; armee Fe.doro,,,e, Ant

h0 cr vsh cones ..041inIrsaseva's-w. Fc. bends ebeato•a•ay-.7-) ; Ind://^efr ..t.e. r..t,

' eanteanzni goaree,ces'speare 6.eads .

illfed•Naety• ttrong phyllite^--^ ,4*

Weak^store^ ........ ,

_r--^re,Mode , . e eZy rli..4.9 ply & .,. te

------^zos-

.---111.144. , Wee.* /ea re -.....

-... re

-.....ea maderateey serer," —. ...._:" ,...

_.,,

---.^,--•

---- --.."

-._^....,

—.

--..

to aw•alr^--.^i-....^......

---^.-•---^

e'e- ----

I,, ar• Ar• re. e • ei .1 rr.43 _ ---

/26're, weak ,ohylt.'te^--

greaaish gray^F Pd 44 ,04,..e.r/29'>

^

Nee.* Jerre, norgeseare^ r.stren3t4^......

-.......-.._

re •101* --.

-....--

.__

.._....... .....

,-,Moderate fr

wearieted

XV,WL/7"F

Crean; a* 3 ,..9, z- red bandx; --- --

oeces....../(y 041VPirey re.e.6,47'-/4-.:„..._'^-----.

14' "'-' 7 '^re•Alsr *re ot.,...urg-7 -te Weak^/ -- --

-•.• 'a...re...are str...,(4^....."--...

--.........„ ■

---.-....

..."--../445': btecc.:ASedolsoltal9.4.yle,:te; it r f erre, the ere taea chirp:ie.

q0.,s--/.6.': Fe hands od,a,aet:e'dSrl••■tkr,paraltae the etaa'neLeaeaje (a",-24.9.

•Im.h Air It:e• f . breac• -.4-lan,/Patti eveart_y •449■'-/s.!'„ ea

sonve letow a j• 00 FA ilee.'re..

S•.'y e pre.er . eat/re:re

•:, firers- , a (5) Ire' , e.4.,.,

1.c^coo Pa e hees•t.'re .

Orli I. ry.E^AN tie:PR/GC NUTS

,RACTIJRE LOG^Number of f rociur es oar row of core^Lanes of core .ass are blacked ..1

REDOING^AND JOINT^Pt ONES - AntVes ore measured relo”v• .0 0 P.m* nOTRMI fa f ,,e Core as,.

s

WATER PRESSURE TESTS

, f E D .^ , C._./YYPR,'"e4 PACKER TYPE

SUPPLY LINECORE BARREL TYPE^riF,"-DJCP

VERTICAL SCALEJAE /r INA/kW raae

Mai EP^4 „picAoZ

COMIENCED^JZ -L.: di_

no,"T^

oven ore pauee Preeeurbeeel sections are onslicated probbeba.A by tAbelma le *NIP

PHOTOGRAPH REFERENCE SYSTEMCOMPLETED^Z4 '47

4 065E 0 Sy - — nt R,af...tif

vl Pt ICA1 SC:LE^/.2.1er. °.

BLACK ANO VOAYE

COLOUR

Page 49: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

ANGLE FROM HORIZONTAL

BUREAU OF MINERAL RESOURCES,GEOLOGY AND GEOPHYSICS

GEOLOGICAL LOG OF DRILL HOLE # s""

ROCK TYPEI% DEGREE OF WEATHERING

COORDINATES

DESCRIPTION

LITHOLOZY, COLOUR, STRENGTH, HARDNESS, ETCSTRUCTURES

JOINTS, VEINS, SEAMS, FAULTS, CRUSNEO ZONES

OEVN^EAT IRE

^LIFT

SIZE OF^

LOG^

At. CORECORE^

RECOVER

Moder, tewe • ehehod

Pleyzz Ire

Roderieotei*vet her /Id

ShRfE

Moder•a.fetyivdrathera./

PNyz /PE

' 7o d,*r Co (.7 S r 0.15, • z ec,oe".•

r tie .ina..c•te..?

Zes4s 4reccei tad u fkreec./

,1 ,Save .

6-re.a.'ah _grey^repti'moavarat.lj strrv

mein ereeteres • Febands. 47j te-

ds' ert.e t a fie 4eLaaf.

ha41413lerd eem,ad • cratrAte Jones;

chi% • ra .e."4- .,41,1V't./76': rarez vaiw,

wa'th cetrle her). re te.

/7f

bands -Jr

191

': "Ves:

434:-/to'i ;

Mets'nsoar,

IRE 5.4.1ei4 o4oli eer_y3e..?

e ,aje J trf ,a1^r s/2 014i-hear • ses'ette44,*.eage.

h' Few th...n pa• re:^VI)a.•. e at-^91"sen • ea ay ile" 4.i

•7t,f be eo,pret Zore so la,- 47/740C CS, 101‘.106.43

e.e the ray•lar Jana's. 2"e4eve.'es Pi*.eh Zoie.

202-24f . hca.v...(j fractbred.

249 -•Vo': •

209': 2".c4e.r,t):4 zone.

St. then sleet co.A000.n air • twr e ...Per Z."

eheo,,.ta s4eoloi0.5 jrea Ars?17040- e•ora,r- jr,_y.aaka

Wrawca therecri

GREYWIWKE

Creeni•A - sr.".^,o•prI1Sh;

kgrao strong r•ejorAcke

sooae sea/ ,C•^4'44E.

&area^a , hematite,

coiloritt)

deseentin...sb•..1j^Se!Jr. 4 ..07 e'rai^ra rex veeivs,d4o

241 . : mach Pe sr:v.' as

220 -2ZI..• ors'e• orPeatered, Z-co•est Avows tit* •eAt'arieit,sZ.sok ens 4%.6.1.

^2231: "crash sane.

frevrart cAi,j. ogi.ai'o

t1i ; trrom sand Siva

t. jr*na V14,, 04.414.7.

4.4.c. Pa; preeilomihatItLy3,-It7 color .

233 .‘"-234 ..".: 44.aray Per.a.t.red;stick's...fie/est •e41.tirie,

^Z34 .: 2" heavily. fraeerred

4234 .- 231r , 46;),:a _grey233'1V-Zif reactor., a twartli

eq„Is^fair); 12. •CAIMOrte.0 ,

23q ° : m..€h^, dame/a...Y.4

243' 4..ezlih5 irrejaear,

24‘:^'meteshea, •e4 re • <44,ICA;

diorCrafsA zone; CIA",

4essAgVee,e4tprieir

Ls-0 . : re30- -

25-.1. :ImArts vein ,^-W.

2.fog .: $harp co. tiet4etwc.e CO4P141 • oriese,o,44.rsc booed.' 4.5

2Sig":3`bemeate't• P,a4;f4a.• 'Jima!! C4 v fil^1".' •

zarttlibibt

TypE ^PM.VD/V/44

FEED^HYRout ic CORE BARREL TYPE TR/P4F

SPA if 1KVNEO 1A/2M_

DROLLER ..—... ...6%_4742.6// ZCOMMENCED^/11

CONK (TED— -

LOGGED 9.;^177.R • Pl'ACY VERtICAL SCALE

ni:71U

FRACTURE LOG • Number of freCtUrte per foot of core Zones of cote ion are Wooled in

REDOING AND JOINT PLANES^Angles or* measured relative to a plane normat o Me core of.

*45 000 we' 7,41S4S

PACKER T,Pf

SUPPLY t INC^.

VERTICAL SCALE ^

F.cvss amen are Gouge press,.Its , senions are Mateo,.0 grootuta 0 0 tooeseo

PHOTOGRAPH REFERENCE SYSTEM

COLOUR

.011.

Page 50: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

'

HOLE NO.RDE49IDE RIVER CORE DR715/TE4.440 PROJECT

LOCATION96REAU Or MINERAL RESOURCES,GEOLOGY AND GEOPHYSICS

GEOLOGICAL LOG OF DRILL HOLE DIRECTION ^/3$.•ANGLE FROM HORIZONTAL J-.COORDINATES ^ R L^

ssexs TopeB MEGA!! OP eiF A7 HERING

DESCRIPTION

tiOtOGY, COLOUR. STRENGTH, tORDPIESS. ETC

^DE:TH ^ LILT 1114 STRUCTURES

^

LOG SIZE OF^LOS^% CORE^JOINTS, VEINS, SEAMS, FAULTS, CRUSPIED ZONES

^

CORE^RECOVERY '..;12

We i k 1.y

weatherme/

NEYWRCKE is above.,....Z44'6: ha r , tit'aritic

• . 2tIC

END OF HOLE

-1

PRACTURE LOG^Number of frocfures per foot of core Zones of core loss are blocked in

BEDDING AND JOINT PLANES — Angles ore measured release to 0 Clone normal to tn. cars :va•

WATER PRESSURE TESTS

PACKER TYPE

SUPPLY MIE

VERT■C•L SCALE

F.pures a•ren aro gouge prsssurestell sections ore mdlcatso oraphJcoas no Moiled n *mos

PHOTOGRAPH REFERENCE SYSTEM

BLACK AND artitTE _^_

Dieu. rypE^ieibd? /it

• D _ _ _ALAI^C —

CORE DARREL TYPE 7-41,4 5 .1 Ph r Itv.Y.Ett^_

con,LER _ _ __Cato wiz

COMMENCED

COWIE r r o ___ 7 :.2-

ocuo Br.

vERYI 7.At PlhIALE

Page 51: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

=^Ai!FTv

Kit:^19 01 eteldtk-1^...Pr■ w^C o ...- 9 a,^' mort^Z 40..^No,^.A Hat No.

BUREAU OF MINERA‘ RESOURCES, ••-LOCATIONGEOLOGY AND GEOPHYSICS^ ' A 4^64

55 °^

DIRECTION 135 ° ela3.64;v„GEOLOGICAL LOG OF DRILL HOLE^ANGLE FROM HORIZONTAL

R L SHEET _L. OF ACOORDINATES

6^ E4RFF^OE^WEATHERINGDESCR■PTION

, .01101.76Y, COLOuR. STRENGTH, HARDNESS, T ICGRAPHnC

Los

,DEP^ STRUCTJRESLA • RE SIZE 0^Loc,^TO CORE^,OiNTS, VEINS, SEAMS, FAULTS, CRUSHED ZONES

CORE^RECOVER

Tr ..,

..,../ArFR PRESSURE TEST

LCSA^T qol ,ons per .nute INff fool

. 'Mg.

•.,

C011C■f-e-C4 .

11111111

I i

i I

He4V;ty

Witeskkate-4t A

PH Yl., I, 1-rE

CO

Gevy oe:+k p;e4c :bowetels.weutk , so 4'4^40 ......twtaf ati---hare!,^Ps e.....; 17^4.-.4.4.6.1.0.1phyB;4e,

Phy /6-11E„^egol-, ;.., ire...;,_;

.,

--'------d'___,.,-,

--------1-%--- ---rb'

-----,-------re

------- %ft

-------.....0-•

------,r,

-_____,„64

--es-

----....".----

-_____________

:226';

--____

------"'

...__

-...........•-_____.

--------e.c'

'---%""s____,...

---_,

------..-r-.........._

-.__,*--------__

-_-.....-......

--.

------- --

-4::

000100.110/01111201gio,:ri:

isolmos-,--^00;i00--'^orot:

1--"1"...••lloP.4e 0110olo-felooloo00000000 ■111.411del--•

Ilii.00111114I• 000 ..°°,011'10.0ooles,A'''^ellAtier00-01•• •••••

..r.,^1010

.6".^4.1•011.!re"^iiilli

0 our,Ili: -S,

0000001•100_10

1 1010g;-^

I 0.-0101011.10100.0

rAT^Oft/...dgir...,;01:0101111../0 INote0 0.- Ex

Iljilgi

c 10-ce I 7^4;-.44,61 zo....es^w:41.assoc.40-401^clay^(:*

■w e^..„ f '""It '^- II ' 4 •leg ''^-.- la' a"

'^"ss'a" - 4 6is '3"^9.-ilg' a"19'3" - or to"^,4, 60°21'7" -30138

n.' TO"^..•

35'^- S3' 6"S6 . 6"

- Si' 6 '''

3' q "- 4e 4- .

I

i

I^I^,

1^•^■.1II

.I

1

■^!I

.

nil o.160104-ftly4asser#44sre...1d

PH^ ITC

.

^.^.

rY1 0 4 • v- 4.-14.1).^s 4.-o .1,^•haed^pky 11:44^w:4,bccfts:.01^ti,;.,C. 9 .. so..sdiyIs......1g^.1...4^...Few • ,.: 4 Is^beNsit

A;M^I... y^le•ey wall^re..01 -

b 'ND.... •leso...e0 .. 3

• •SO - 60^•••■o4••• lo ,.......^/lofts.

:41,^imusol■••.11....^r-ey

6Siv - 7 Si '^rt.( -. ir.-0.....••• ,20„, a^ Hts ,,,ey ww.uw... )

Sow.. +La" bias •ii373. sa".161 10•■••^56 p....i , 3irovr-4.-.4,4.^41,11:...3 .

,

II

4"

.........-.

III

.4"'

IIIII!

,

III1

ii 1il

1

o

;11::011:

11 111111!

111111 10:01

Iiimill•E.,

(dip &Is0.--0.-10.7•100: Iilogra

1011":01.0.0011,010.1-00::190!0021 ;0111:00100:0100120

1111 •1000:00

Ild:111..!i011/11.000.'IOW0 milig10 - 01001110l.. ;11Priai....0°0!lei 0111.....--.1

ill;.1110:01..POI, op

11111iii

III:iiii00 01

1001111ImEllMO, g00110 goiiiv11141.10111011/mg/ _6.--.....1

iill00110

iiiiiii0111.ii11.1%0011"0.31114.1:

1 is3/111,

,...^_.rrevert.ra.5^. s•tip^: --

.ors - J 5 ' - ^44.44,, ,i ...,

• "...N2 '^.'.^...lee...

g • - 70' .7 reotton^a...4+6 4kr.eley .r; L., $

- -

, .58 6 - 60' ciose47 A-4416.T.14

IMIs °lay

e9"- 63' closely ttvattle44"a. dray

'^'^C.4•Ly a 0.• e..

^

, 4'. 744 ^aty 2. t40°

^J- '^Is '^i.^-Pt!e.vs-a^J.^.^y^.^--,4704.10-07;s20A0f.,.10°4:0

PL,I•^i 41^•b^,..5^- I& Hi- ..412.5^1 5°

74-2*-94'5° 6..41 .f -r,9 .

o•aletone w;+IN cis.", 416,7+;.e

re trics:.";...,

t

I

1

i

I I

,.t

I

I

I

I

1

I

i

I

I!

!

1

I

ti 'OPT Mina...il l y I. LT E. L.FRACTURE LOG^Numbly of fracnores om too , of cm. Zones of core loss ono onoomp n.BEDDING^ONE JOINT PLANES - AN As one moymored ne101105 m o pions norm.? to um 0015 cu.

.

t^.^

.

WATER PRESSURE TESTSt C'^0'4ysit._-o4i_c,... _

ORE BARREL TYPE^T....,), 1 a

PACKER TYPE - - _

SUPPLY I ONE - __ __. _- -. --- -

VERTICAL SCALE

,R _JR_^G.._ ^_-

E 0•ME NEED

T•gonos or/An ens pope ommortsTem who ,. ore .ndnyof .Li 0000,00'n of Mocked .n 010.00

PHOTOGRAPH REFERENCE SYSTEMcome,. t 'To_

tcK.G r o 8, . _TAMIL- ii.y.A.4 r- is Ade 0VERT CAL SCALE i 1 s is* 1

SLACK^AND V/1-1,f •

-

COLOuR^,^_

Page 52: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

PROJECT^FIcldelo.,,,le^R;ver-^L.sorle.^Da .....,^S;+e^No. I. HOLE NO.

A R a 5

SHEET -2- OF --Els.

BUREAU OF MINERAL RESOURCES,^LOCATIONGEOLOGY AND GEOPHYSICS

ANGLE FROM HORIZONTAL^550^ DIRECTION 1350GEOLOGICAL LOG OF DRILL HOLE

COORDINATES^ R L

ROCK^T ', PEB DEGREE^Or^PEATVERING

OESCR,PT ION, , , HoLoG, coL.C,Lon. STRENGTH, HARDNESS, ETC

,,,••pw

LOG

^

DEPT^ LIFT^. ^PAUVRE^B^-^ STRUCTURES

^

SIZE Or^LOG^% CORE^JOINTS, VEINS. SEAMS, FAuLTS, ORuSHED ZONES

^

CORE^RECOVERY ...■WATER

LosS ,n gallons

PRESSURE TESTper Tnnsuhl per too.

''^•,,

[

•„s

EtrY) ocierelelyweefk•re. .1

PHYL.LiTE

easc,.-:io•....o..4^a 3^abos.e.

Crl A' ' - la a '^red-brow..

pl,./a,.4.^wi+1, 44,,:-. 6e...isof^4. 9 . so....4 s+ cy.e.show;o, '30C+ - v-oc.k

Core^le...lthe^/"- 8"

ono de^4"-5"

—-- _--

-..

.__

---

-_

-__-__-__—--._

--__

Oliiiii2•110

011/0°0 11

loa'4°..1021-7": closely

-frecl.“-eci^lai-le^..../ay

011

Al

01

POpPO0040/PO•tat!riglil0°1100

fig!!

0- idolii:ketri

000°10011:Opli0.'0°1:11:POill0010000000001i00..0.0$1010'00'00 00;Ito

0100

-All

00

0

114.1 : &ay 4.111sol^-Cree-h,,,..e.

al;ps^30°

'

145.4.-_,45..":.,...,,,Traciereil )^I,-141Q.e..4ey.

,

Hole^.--e- ot,:ll eol-

Croy,"^60 •

DIN .^•PF^"." L--' , . I i _^, _

rots^__^. H__y_df—A. ,...1 1.2.:C _-1-,-•.0.1e

Nv*E5

‘RACrURE^106^MUMMY ., ,oc,••• ,2or ■•••• at core^:coos 3 , COo• ,oas aro DfoOod .n

BEDDING^AK Apo,^oL ANE5 —^Ar.•■•■^pry •••••,..... ....y.• , . •i•••^10m0l ,^..^,t,^c.^0,,,,

.

.

'

WATER PRESSURE TESTS

PACKER TYPE

SUPPLY LINE,CORE BARREL^'PE

se 1,' 4^; , .., .e.,....^-1,..be_

DPI.^F R ^0.--,;2,...._COMMENCED . . — . - _ — — —

LOmp, y y , ,

.CGGf 0 0 •^ —. 8.ray b.r.o o_k eI 01, ■.•,^St•■ I.^J .^...4..^10 '^.^_

VERTICAL SCALE

F■pures pvggin or• gouge pros^4.1 %•ctions are mdicat•0 graphtcalIy by Mocked A APR,

PHOTOGRAPH REFERENCE SYSTEM

BLACK AND WHITE_

COLOUR

Page 53: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

ivoJEc ,^ftilaUadda^Evirei,-^Co es a^,14..m1^S;+e^No. t. HOLg• NO

A gC 5A

SHEET —1-- OF —4—

BUREAU Or MINERAL RESOURCES,^Loc•-ioNGEOLOGY AND GEOPHYSICS

.GEOLOGICAL LOG OF DRILL HOLE^ANGLE FROM HORIZONTAL^ 55^ DIRECTION ' 5 ^nus .,4 :4

COORDINATES^ R L

A^f ,PFF^DF^•f•THE•N3DESCR For,ON

•.^,,,^.0,0,0,, sTAt AGE.. HARDNESS, IC.1 R0C1

11 6r' LA

5I1E OF^.0GCORE

a% ORE

RECOVER

STRUCTURESvOINTS, VEINS. SEAMS, FAULTS, CRUSHED ZONES

cc^..J

H'iWATER PRESSURE^EST

r.N -.lute DOI foot

I^I^I^1^1

RPROTO

m m

....-*

1--isofe•^5.

•6c,

I

)4

'

I

I

I

I

!^i

I

;

I

1

I

I

I

1

I

i^I

I

VY'le•le•-efetv;avoatis e.... Ls.

PHykk 1 -r E

.....

^C.-ey^.0 141,^.-6.4 - 6 v.. ,„^be rtS^.-•Á^o al II • 0.-filL. I ..,^S+4.0 s‘i^I ^ -on .^1%•, el,^--r4,.+(,-4a&

p hy il; +a- .

77

^

' - -^ • r a-et - .4.-o,^R.R.,e

^4 ^4

^

..;■-■^ .,^s e• qpy^ITawal :H1 .

^lerq"..^135'; r-IN.1.1) , o ,....^*0 -1.

^%„..4t.,^+1,;,^'Hoy^117MH AL.", ,

..^Co .-e^1....liks^I"- 14

^enc, AA l^l'' "-' 5 "

-...^---.--,-

--...^-......

.....---..,

_.___

-..... ,.".----

---

"....-...

......71,

__:-...

,.--s--

..,■

----

---••-..

-- ----...

,,:-...

--- ,

,..,..'"5.,,,.-.,

,

4."'"

".e.'

.Z--^I

7q'"

,...•

.,..,--.^.

Iiq '6"

r...a 04004$0

i;Oi$$Vorpl

01°V0^g°O^0lipin 4rez0103 4Ar• "" -V40Jo'

61 '- 63' 6"

r^M.;11.^e.4.sy

-t•-ae*.."es^.I.

7o' -^4 .. y760 ;13"

'''' r -1 ^GICIPS:i.

.-1.7

.- 7 ei

■^*it 1 6^- To . 9 •sa,_ sa , e ,

RA:- 34`6 •

c 1.....-,^-C.-...41/ b..4;,5ct...." - -f ; 1 1 nal -r, .

3o °- 60 °

15 ^..- 96' 4.1al....A.-■4;._

q^'6 °- too .^pky

c..10,-y

: 1,,oka., acose...Nig oi

ifs p ;..,3^60 *

:^4'.. 1^C1.. A,A,hid..;

4. . Li^rYy^•-•14. weeil,

;••-ri11:..15 ,

sly^.espHeSeHi.

closely4,...e,i.....-•A

0 icvy^pe-e a t....4 ,

,..-e.s^4; p^is°'

P-^35 °^.el....-e-3^et ,,o

.^sc,.....te-10.,4 *it.,

re^6 -4^;., s.

11 ,4e 73 .--,,A

.

I

I^,

,^t1

■I

IIII

1

983 °^IOA-..‹.....

.4e,'' Pr114

PTO0Ay

F0,......;II__--

',TES,RACTURE^.06^Numb.,^ff Ifacf,•S oor ff.. Of OOro^zoiff,^ff Gaff 6311^3, 0^Ofoollod^n

9E00'AG^ANC .0,,IT^01.ANES - Arvves r.••• "'vas,. -co.,. 'A a o ant +HT.' , ' ,11 co ,* . a

WATER PRESSURE 'ESTS

PAC•EP ' +PF^__^_,UOPI,^,OYE^_

VER'•'.•,. SCALE — --- —

F. to^.^H y..A4 ". .9.-f• 1. : C._

,ORI. BARREL ',PE^T, :p i e._ Se_1;_iitsHA ee-^4....t.e .

DO, f f •^.^fv1 0,s; ,^_

1COMP, VI:^.^ -

NuEl) V 1.-: Of,""1 1°•°* ke

:::!::y.,^Q.......„^,^,,,PHOTOGRAPH REFERENCE_ SYSTEM

BLACA^ONO^ff/Hi f .

- -

— —

COLOUR^ _

— — -^- — _- —

E•1 .C•I.^SCALE

Page 54: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

4.4t-

mov AC.^F_AAALIA:o 4 jr.,_^6_2■1■_.2_11.::.^ 1120 ,L lke,51.1...._p_lzi. 40LE NO

FR G 5 r

SHEET ....2.. OF

BUREAU OF MINERAL RESOURCES,^...., A' ,ONGEOLOGY AND GEOPHYSICS

ANGLE FROM HORIZONTAL^55 * DIRECTION I.,^lenasosei:cGEOLOGICAL LOG OF DRILL HOLE^.• COORDIN.ATES^ RE

AT

P^4 ...Er^P^3t ••NimNO,CSLP P,04

••^ , ,A,^CARODR, STRF NGAR. HARDNESS^F AT 00

SE A TPT.^■K LI,

^

KAM^8SIZE OE I^DG^% CORE

CORE^TECOJOP

SyRuC'oRESZR^DIN'S. VEINS SEAMS, ,001rS, CRUS.ED ZONES,,_

a^...,ta ..,4" >3 t

REWAIEP RRESSu^TESTLOLL^, GO., DS DP, •N.P.M Pe,^!Po ,

l^IIC^MO

PN1 e ,..f a • A-1e,Isiets, e,v1. k G.^ oct

.^.....

....

100 '..- 10 1, '^2^, LA - Ai "O....1

^zo..s...^L..:41..^t.... c...,^t.....1-1-e_^1,-.....d.:.--9^.

log '.c, -- set' 3 • ■^e.t.a - bro....2.1, ...IL^4.:414.,^. •Ci.. t^4wo 6..111:-

...

."9-.4)^+.3 .^sa+46/........p ,+“..0

^

1 , 7 '- sat. ' : --ad - bro.....^se ..0.,,...; 4 I-.^J': ..,a, ....4.■.1g.^b a...4 s .11-^...^b^.....13^• 4'^.-C-1 •

^s......1 s-4•.....^p•-•sc-4 .

Fl.,7.1(.'-ic^; s^1 .-...)^."^C.,■ffn. ...

,...4-1'..^0- .4 - b•-o.-• ,•-•^ANA-NPIS,•-•,,,,t•---...H.ty^st.c, --."^...el .

Co.....^I a-.1 4ks^* -- i S "

...sect e..^a " - 3 ""

7 '^:^,..ot - 6 .,-......^16 ^

442e -st.^1...:. ....„,„.....^6.-46.^-ri- ,•-•b....Ls^.4'^-c. 3 .. s....ark-•

.

179'- l 43 ' -.^re.t- b.-a...,"zo...a^,..,.;+1,^4k:, ,

A-'.....1.:44^6^+ of s ,^11.,;....6,„,,,„„LI^04"^.e. 9 .^CA.,agio-....F....1,56"# .

.---.

'-"--'-----.... --..._----

....,:---..

...:----^..,

--.....-

.._''.-----

-....^-....--

--^....

-...--... ---,

...'..

'....

----''..--^,

-,-....

---- ----- ---__......,

...„.

--,...---

....._ ....

-......

----....,

........

,.,

-.. --..._

......

......

....._..-...

.....-...,

,......_-..... •._

----- '`-..2.--

-..._

--........ --_,...

.....-...,......._

........ ■,

-

""^iii 0^'3 e^1.1'^I

I

1 i^'^"^I

pa4020rop,$1111

A

-‘11 10S '3"- /03'8" : .1....ly.c...............,^,:,,..,^..,.._^.,.^, ^-

jig': f•-,:t c-1 .--es^•4•1,^,

^

.4; Sp ter".1.....14. 4 S^^:^4. •

I. 5 '6" - is s '9 ": ...i.s..iy

i

AC^.4 .."-e5^6,4: p

/0.-./ 5 ° )^// 12......1:.,,3

Co 7^4%-o .4 ......-e 5^.....S..soily

re^s4 c.:.se-G4^1," I:0,Q-

+kin^c.lo.y^C004; ..L9 5 .

iI

.1

1

,

1

,

t

,

4^..^t

1

I1

.

.

II

OF;011

I PA

I

111'4

,TP.

I

II

, 36 ',

stop

lAirffIl:Oa

.4w,

101°

01°

••••0,

11011

11

1 i

I4r•

1

'4.'155

IS, -, 0

164 ' "

OrilOrtil4

:•01P011

01,orAdKir

g0A00

OrAdAMpp,goo,20dffd

PPP0004016111wour-4;0;OF0000:0040.dg

--.^....

/ 45' - / 45 : aloe ..1.y-C.•-■ c.i,....-a-ot

/4 SY - 1.31/ '4:. : .1 os sly.,,,.., ....wt. , (j ^c..l..s.y/4c7^2 " - '50 . ra^S+4.;,.444,

1 .A.Y

^C.* ci, 4 1,01^To...AAA ....Y.'s ,

:Gp ^a , •

54' 6- /''^5 6 '^re.^3+0 ; 's .144J

ci...>"^c...0,1-...4^-r-ac.4.nm,.4„..,^,..

58 '2"- 15114 . : G.LASAP.Ax4...-ar.:1,...-...1^,^el e-e...

i74' -1-?4 A-3" :^c.lost-lyf.....c.i.....-/Loi,^CA 4.0..N .

,ISO :^ck /0.-4 &^-C,"/L ad

4"" 61 ‘.."'^e4;f:' 5^15 .'1544%^'

^

/9.9" ;^cieSely4%-....f..s.-ed^c••• 1,- • 0 .•-% .,

i00

p0$,0

1

16‘? 5^1

_ 1747'

"li 'to

4'•In 5

1111 °0 11°

10 P 1;

•0;0;000gd0

oido!mpg000;0a00,10rAgi 4

Oargr 0

OP0.0ditifid

...,,:-

i

Is'

1,73 '^"

i'^1^1

11'110:0$0040400;0000000;10101

Pprp

DRILL TYPE^rY1 . ^ A ' ^I/ A N.o.. -_•Q,

FRACTURE LOG^Numb, of Doclures be , fop , co cm.^Zones 11 core loss„. 01000 .n

BEDDING AND JOINT PLANES - Angles <re me.,.. ..10,,, , . won. norm.. t0'1 con. o”.

WATER PRESSURE TESTSFEED^I-lye:4,44.3i :c....

PACKER TYPE .^-^.^.-^. —^-^-

SuPPI A^NE^--

VER,CAL SCALE _^—

CORE BARREL TYPE^"1".--;^La1

s p I i'l^;^ *.Se•--^f '"be”DRILLER -^.•..1°....1;d/Z-

COMMENCED

..1,KK .,Kve , a•• gaup.^pr•••■••••'es , S•4(.0n5 or• ,natcolea pfabh.,. by bkrc■of^• Wit.

PHOTOGRAPH REFERENCE SYSTEM

LOGGED BY T 1:3•^"yb000keBLACK ONE 0033

- -- -- ----^-- — —,VERTICAL SCALE^I" =^it": ^

COLOUR _ _

Page 55: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

.pocr^A de JO 41 a^ilk■V1ler^C Ole" 1 e.^Do. e.--%^S.-+ e^N o . I . MOLE NO

BAC 5A

SHEET -3 OF -3

BUREAU OF MINERAL RESOURCES, COCA TIONGEOLOGY AND GEOPHYSICS

GEOLOGICAL LOG OF DRILL^ANGLE FROM HORIZONTAL^5 5 °^ DIRECTION 135HOLECOORDINATES^ R L

^. DEGREE^OP

^

E^0^WEATHERINGCtDE SROT ION

THOLOGY, COLOUR, STRENGTH, HARDNESS, ETC LOG

DEPTH^LIFTa^RACTURE^BSIZE ^LOG^./0 CORE

RECOVER

STRUCTURES

JOINTS, VEINS. SEAMS, FAULTS, CRUSHED ZONES

ss –.

; tiWATER

LOSS . gallons

PRESSUREPe, ...to

TESTP. loot XW

• ••••§

.^.^.^..

r110/1 ere– afre ty

+0Weo Pc ly

Wea4 in er-ed

PHY4-A--. 1 TE

.

.

a e.,,, y - 5 ee en^t., 41.^v- eoI

^S' P'^'P l e - b''''s+sv..^ba......15 ;

Th....,^sc....J.0-0.-‘e.^64s4.^p le.c•s

Ce,s^ieng+ks, 3• "- 3a"

"lode.^6"- Sy'

.

236'6" - P-4-1'6" : da..-k-

sr-ex^zo. e^w;1-1-,^v-eol-bnawn^boL•sas.

,as° - 2.54 : red -&-awnzone^‘..;44,^3.-ey^ba.ols.

So-se^so4 rock^4-0lci;., 5

.

ante_^s I 1 : ,e..1- b•-.0■0,1zo,e.^tv;-11, seey^bo,scl s ,

s'-- .`---

-'•

--....."--

-....,---

--.."----..____ ..,

_--,

__

---.. -....

-........-...

- -

---,_

..,....._

,,,..,„......,.

-----._

"--^-...--

— ....

--

--....

.....---...„ ---

,......---

----.--.

■---.

---^.....

L.:

.--,.

-.....

-..,--. ---

-......

,..,-...

--

...

--..,

2''''''.107.

rffillorAU .01;0);0 000000 010111pos.orolo00Ø00500°%MIAIpPiti006Pr 0giOig

--

r .les.^.^cut. .4 .......5^alp:0.^_ ;^osiScsI se- ace ^// bo ...I .9 ,

3o°.^ri..,7^L-..... e%

P'"' 6" . c'''.4. 1° - ,'4•`•60.-0^py :-.. a ..-50 p--oca- • .

- 50evos.^r e,"Grecn IPS.;

se.ply^d:pp;.,9 (-2o% 309

47'N.ciL..-e s , INecw;ly^Fe

S 14; n e ci^s, c.P+e,^.....•.“-,

tv'ele-01 - ,-...'4 2.^; -•Z'ilin,is

.^•

?6'6"- aa -7 '3 ": closely

-ke-, ciste,:te •.,ces ,^cos.,^ 7....;#e ce,cA„ s

230'^Pr-4e cnovkn5,5^0--•sor,e^-,t,,......s

e^I,^.^ ,VI^Tft ,,,^v.o, ts.^ve..;n

2 ,40'. : closely^C.-,ao-t,..-e.o.1“,;41,^ry...;^ 7_^(.0,4... 3 5.,

253'1": c Ieby c000feoi

fn..1..-.^ate, 3^AO '

Same.^44■n^cy....- -Iz ve/.43

("L.') oco“,^belo..4

, a.A;p.^30 .^71., ; ...,^py.....4

c 0.'4 .. ,sy 5^a n^so.....e.

27 ,AC P^4 yy, p...^6 /PL ers. , 11^0 a‘

-P‘aa... a•

2.5o

1

A07'6"

2.12;"

all ,

22/ '6

Prowri,,-^ee +; a .3 6S^al* 0 v e

PI;$;•••••d•••,•40,;00;0

00°Og10g050$0,0101101;°..601tow1304 A;•040/$1d056

11111000,0d141040.110111.0og,00Az/ A00$°%0000.

a^,

,236 3

-24.--.

2.45 6"

I

I

254 P •

I !Pill1,4,r114020,020.OPF0P0'00 0000000000011140/00p010000.000.0000AgOt;01ip00000.0.0'040,0Fat;

,,,,440'pop0 ,0410

ii011g00000.0,11010/.0F010

,51,0

264

--_..

11II

.10'3 .

I1

o

.^.,

2%6

1

E.-. ct_ .

H ole.

DRILL rvpE^111 -...c1 ,4 IInonq^•

tRACTURE LOG^Numb., of fractures per foot of core^Zones Cl 000 100$ are Stacked in

BEDDING^AND JOINT PLANES – angles are .easurea relative to o pIane norm! to the core au..

WATER PRESSURE TESTSFEED^Hydn'Qsz_.. PACKER TYPE

CORE BARREL TYPE^T.-:p leSUPPLE LINE

l;1^:,..-.12.--^4,.. be.VERTICAL SCALE

DRILLER _C.,___Fron; A Nauss coven ore gouge pressuresTelt sections ore oulicated grophtcolly by teocied.on strops

PHOTOGRAPH REFERENCE SYSTEMCOMMENCED

COMPL E r ED _ _ _ ^_ _ _ _ _ _^.

LOGGED SY _1...0.-,,a7,ap_oksBLACK AND WHITE —^—

VERTICAL SCALE

COLOUR

Page 56: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

PROJECT^A deta:cle^Ryer-^o^P^' O.^SI.--Fe^No- I. HOLE NO.

A R 6'

/^3SHEET -- OF -

BUREAU OF MINERAL RESOURCES, •LOCATIONGEOLOGY AND GEOPHYSICS

ANGLE FROM HORIZONTAL^5 00^ DIRECTION^ /15° 014 9. "44: 'GEOLOGICAL LOG OF DRILL HOLE

COORDINATES^ R L

ROCK TYPE5 DEGREE^OF^REATMERI G

DESCRIPTIONLITHOLOGY, COLOUR, STRENGTH, HARDNESS, ETC LOG

DEPTH^RAcaw^

LIFT

SIZE OF^LOG^PA, CORECORE^'COVER

.^STRUCTURES

JOINTS, vEINS, SEARS, FAULTS, CRuSMED ZONESWATER PRESSURE TEST

Loss ■D 90110nS De =DOR Re OTOS

K. :..g Et.^.^.^..

.^.

• C.c.! La...act . 1.Cr!), CL.Nol pink, Wea.k,

so 'C. +,^1.1,49 k Ix^frAc ...r^__,t .ex' a '4w.hz,z11,ereci^oie.-1.- lioSdshole.

^

Sec+;0.,s 0.14e,e_a^+0p; .k on. ci co■Co...1.^C.ICLy

niNeit•^fCr^Cor-e.^C.,....441e5

se..-; c;44c.^cloy^4.41-sen

l'ux.diecl.^a,..-1-ac.-1-piecas^q,s^w 4'4 f^4 i ;di ed

cArs el^11:9 is ly^S tr: 6:4;c

1

.

....,^.

-:.>.....„,--..

.....,

--- ,......:'

._,•.,,

.."--------...-...

,---,....-.,

-. ..,.,

-.----.:.

..

-....

.-.....„

■--.

■ .-....^.

--,... ,..

..........,-5.- ...--.

,_-.

^'^111111N,rid

^rov^0200°d

^, ^ wine,

rgdft'rere

4'

I

0a°00

0000'00.$$0:00000t;g:0;g;40:1rOvOr00t0tggia.4•Aii

0•00

.I

000

1 1

0

.

0 4-'- 4.4.^GI°Y fr c-,--ske.ekkfo, y

CO-'.^Sev ere / y fka AA.- ed

eviok^..i+e•-e.11^4o^c.1..),

F., cNef,....-g^,..t:s^t....f.....alty^p

0° 4, so-.1-1-. 6,4,0,pm ,-.11e1 ti..e -VO4.4... ...p 10,... es .

3 0' - 3 5 ' boo( ly Ion, k.,

clay^-C;11.4^2o ... a- .,^,,

.? 3 ^AF^$04.4-X Loge,

-chows."(^6),^6 s' awIn :4-e.^ow, Y.

a'-55'^ct; e 1,1y 4'.....1...,t ,

4 57 ^a,...^,^re.--I 2.

S7.6 ".• Si '^"Cei, C Wel ),

Ce*MS i s ad^mc.,e_.

60'- ao'i'^Su^6 2'C ' -6 .,,„4,...P.. -..1.,y^4... , ....A ze-es

.

C^' ;o1;a4-;0., a:p s 30°

t6'_ fr.l'

'renx.f..-ekS^01.:F.04.4 e.^e..1..y^ec.:,-4e4 .

9t '6 " - 42' wt.:4c.• V. kl...64.."S .

4 '^I" ct ay Zen&

96 '- / ø'^fl.....4y c■usk......1...e^■•■dh^(J.; 4..^e4.:.),

ifecwityAtl^e coal, er e ci

Puy Lt_ir A

.

Ov- on9 e^4..04wk; -4e, W CA Lr, \T's

soft,^1.,;,3 41y^.1.-4.1....e.s4^-....f,k ),//;4-e._^1...,;41,^cic.>,^... ■

..r,. //a.c.1^.zo,n.as^ ---...

'....4.9/

\

',....'-, ....

,s.,--.

-..--...

---. ---...-..,.,

-... -........

- ,-... -...

--,...--, -..

---,

--. •-..-...

--..

--.-,

-..^--..

-...--..

....----,

......--..

-...

.•■■

-,..

.....,

.

04::

14--

rereA'

eb"

,^MI

r4_i"..

A'

DRILL TYPE^r•,Li', 11 NCILIT

FRACTURE LOG^Number of ',Worsts WV row of cars^Zonao of cots loss ars bloclael tn

D^A^'^ABEDDING^AN^JOINT^PLANES —^nglo, ore rneasura0 0.10110. to a pions norm°, to Ms tore a...

',iv^:^.I".1:..+Rs^,,,:d....“..^.1'^0 L. Men ,;...)

WATER PRESSURE TESTSFEED^I-1 y cl,...a,..,,I..C. PACKER TYPE

• ic.CORE BARREL TYPE^-r''P SUPPLY LINE

.-., e...-^-Lbs.- VERTICAL SCALE

DRILLER^C,...^YY1 0.1.: 2.^. Ftgares goy.0 ars gauge pr•vsurfaTest *actions ar• ...CotOd graphically by Mocked in MN

PHOTOGRAPH REFERENCE SYSTEMOMMENCED

COMPLETED BLACK AND WHITE

^'3.^Br^b^INLODGED DO^.^evy^....* o^e-- —

VERTICAL SCALE^I" ■■•10'

COLOuR

Page 57: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

PRoJEcT^Fleteta;ole-^P'.ivc"^Gave.^'Da.,^S;+e.^No. HOLE NO

A RC, 6

SHEET a.. OF

BUREAU OF MINERAL RESOURCES, LOCATIONGEOLOGY AND GEOPHYSICS

ANGLE FROM^ 500^ DIRECTION 135°^g ;

6HORIZONTALGEOLOGICAL LOG OF DRILL HOLER LCOORDINATES

ROI .^r r PTN 0, rreFF^OF^of •THERNG

DESCR Is , ION, '"Si OS!, Epeceo. STRENGTH. HARDNESS. F YE

ORAPRICr. 04

DEPTaSIZE 0

CORE

toI RAC - LORE^a

OG^Pfo CORE in

RECOVERY 3

sTioNEJosE $TIN'S,^ENS SEARS, EALH_ES, LROSHEO TUNES

Es

5WATER PRPSSURE TEST

Loss^, BoNons Get mr•Pute per^FOCI

11111^111(1

PHOTO

Hecw; i -yWecrikeeiipt

PHY LI' I-TE

Rad c,,,A•4^taak;4e, weak:M-40e

Soft,^1,1;31.0,,^fy-aci,„,,I^....,

Tinsiy^c•..sks.41^ei"el^c,lay

a

--...._

-...,

---

-----

-----....., ,te

--_,

...,."-■

....,•-■

^....,

....:."

-......----

---"--

-,.

----^__.

--- _.-_,

*--- ...,."---

----__

--. --..._.

,--.......,.....^-...

------

----...,-...., -....

----

.....,

----........-.......^..,

.............. —--^-...----.

-__--..^....

-----..-...... ----..,

........^..._--.

...._--.

-..._---.

---

-....._..._

---_..--

-.....

-...._

-

f --......

11E105,..^III.^•

11

I

r,^11111V

i'll'

t

foo'- Iv' ,^b .-oks..,va.:„,

,.......,,B ,^cd ,".4),to.3 - ‘05'9" G16.7 X 0"e.

1 04.'.. I p 6 '6 " :^-Ca.,. ly..........k...t.

/06'6 • - loy '^'^..4.L .- ..":i .. ..4;sc 9

$0,' 3' : 11,',^c ky 2.0-se .

/153 '6 ":^41:^ 1,,,,..../2^v ......,

sr.-Clq.5..: c.109,,^zoine

0 ^'6; 125;12-4',

4 _ ^re, m 4,7,^v.:. S

i 2,6 ' - tag 'A c (Ay^ze...e.

12,4 ' -^t3r ' :^-C;,..se I^c•-.0.414Y

- r51 'S ":

137. '.- /34 ' '.^-PALI>,^c•-...sk ea

!--.

I1

1

I

I I

1

II

I

I

!

I

i

I^II

Pest-, ,^6 1 ...4c'

.

P HYL.1-, IT E.

81q6 1'1 "leal0...0.45ay s4*-0... 3 ,

12 r;ft I . , 1,1001a.-Aiii.iy^ktoL,ci ,

coz..40.-4a.1^5,^1-.:9 1,1›, po l;s1,1

cl,/,,,,44;c^pky ll:+e-.

"...,'-'

e•^,/34:6' 1

I

i

.

1PRY Ll-. IT g

Rea a...A^1: 1 1..+ 3 ,,s....., weak,

Torsall C.'t .4,44^pkyll4e..- am&bo os. .-.^v.^•kl•e:44.. ■..pa,e+S .^lare:-Ia. •ssoc.:aisell1..,;4k^so...6-^4%,a...4,-,..-as

---....r.„ iiii

,s-^I--

_,,, I

i24'6'- /5 5 • 6 °: T. Cerer4z^yes;,..,

,16'6-^/353 '^:^‹........sl-seolto...a^wi+k^r,r,32.- 1,7.-,. •

ve..:-.^o.+ 1,wse.12,9 '- /go':so....e.^,e y ...:4a. 1^4t1o....,044Craws's...I e..kie•el;...^ze-se .

/42',5": so--.0. ,,:y.--.'4e_.

13,...,4:^,-''.

01.'e,^15°- xo'.^elostfe.244....0^1.......osaity9-e, 1,,,410.,^p;4.1,;.+53o°

15.4! 7 "- s35 .: c.,....st....4 r.......a

P- ka s

166'6 "- /6 -7 ':^desaby .C.-.0.4.......ks: 9 1...iy^p,osi..0.1, c.3,1....4.i...'

....', f...^C.-0.3.........4 5^--^4k ....,

(c...-"eleie .0.+e,-- los.")

R -g„..,^orl:,o ,^4-.......(1.,^d;,.45-, p, ... „I: ^JO lees ......e..+5 .

1-^01+.4.......s^•,..a....ily1.,.......a:-. 9 ,^•IA,9^/sc._^a...Ill 0 6* .r sa 66 .3^e.o...10,^......44 .

"46.4.04^So..,&^ho.1...e.-7,^,^,pol:s1.•et^c3+1o.-...te^,s,.., ,e4acQ,

11",...,^pyrg^.3ie^...isa. ,s...^0..^...........b0..-^of^-000as

SO P" a^ 'L;5

ve-; • ".5^C -19: - 41,;•k)

F-;..,,,,^1) 1,31

PHYL. I- IT E

Slack^ev,•(^blae..I,c^s- rayloce,,,,ae-ol ,^wo.c.k.^40

ono dIte...4aly^Si ...0... ^rel. 1.0,4,

45,tc4........0A ,^c./-110,:iic^plsyWie._. s.„,,,,^4'.....,.A..--e.^k:0 417pol;3 1...eol.

i

yYlode.-.4ely

Wea4ke.-c.1

PHYLL ITE

.

1

Red^9.Wis:+e,^modlo...-0.40.1...,

"fr.° .^..".^1,44.-.1 ,51^-

be..s ele.ol^pky il ; 442 . III....---•

11

ill

11

..c.-' •

'^11

III

1

1

1

11

Ii

.

4

1

1

1

.

11.

I

Ii:

11

C.SL L “' PE^PI rJELES1 , ; IL PRESSURE TESTSWATER TEEDes^I' e_H^%-n.^1 --y_91 ,- --

•±,a-§

,RAC TURE LOG^Number al Nactures^tom or core^loses 0^Ion^1Roc■ouper^ co , .^a..^Io PACKER TYPE

LORE BARREL TYPE^7-, ;/Die, BEDO,NG^AND JOINT PLANES — Angus ore measured reIonve to 0 Mose norrnor to 'Se 004 asrt

SUPPLY LINE

Spi:+^_;•-■ ,,,e...-_ 4 ,...be.

SRI' E R _^CS......01°"; g.— —COMMENCED

COmR1 E TED —_. _^_-....^-^- —

LOGGED BY /. 13..-41yb r-170k e.

e•-•"-'^,^I....A;c....ies^,.....a....,e.^,,C^sLe.4-:-.)• VERTICAL SCALE

Erato•, Laren are aquae^pressure,I“t secOons are mdlooloa graphicaRy TO brateed 4, sou.

PHOTOGRAPH REFERENCE SYSTEM

BLACK AND WHITE __ _ _^_. _^_

..,ERT CAE^SCALE _f._

COLOUR^ _ _

Page 58: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

N.

PROJECT^Ade-104e^River^Ge ,e3e^DeAvn • S;+e^No. 1. HOLE NO.

AR c 6

SHEET -3- OF -3—

BUREAU OF MINERAL RESOURCES,LOCATION

GEOLOGY AND GEOPHYSICS

GEOLOGICAL LOG OF DRILL HOLE^ANGLE FROM HORIZONTAL^5.0f,

DIRECTION 13 .5 • /405ne..4. ,

COORDINATES^ R L

ROC s TYPE9 DEGREE^OF^WEATHERING

DESCRIPTION

, i IL HOLOGY, COLOUR, STRENGTH, HARDNESS, ETC LOG

DEPTH^ LIFTe^RAC RAE^8

SIZE OF^LOG^PA, CORECORE^RECOVERY

•STRUCTURES

JOINTS, VEINS, SEAMS, FAULTS, CRUSHED ZONES5 ■-..'i

WATER PRESSURE TESTLOSS .a GOO. DRY .18.0. DV ,DOT

.ft. _Med ei-catelyute.,a+k e+- 0.4

PHY1-1.-. STE

R4.4^9- ■-.0 te.:4 a^i...^c.oloa..-.

^.esc---;f•-4 1 0-...^.s^.sbovo..'

.

.-...

.....^''291'

1:

1

a0

'-0U

...<

i•C

4-o

C

aoa '- 2..os' : co.n+0,..-4.4,5,4act...1^p Ay 11;1.e.

e>,.....a.

zo....e :^4.a.,

_

■.

.

.

.

.

.

.

.

.

•-

.

.

-

.

-

.

.

.

A "'4 • ao4" Qv-3 - ac,..4.' 6 " :^4: 1 ;c;4.4ol

- a...ylo..-

loky ^4.e^: al^1,1A00.1. ..2.

0, 0f...;x.^2 " ......4-0,4-44

^

ky 11;ie.^,at^base .

---..^-....

.....^-......"•-■-..

-....^---..---.

---.----

--....■

-,....,

--.....^.......

---........_^-....„

--....„.

...:----

,---..

,-..

--,--..

....■ ....

-..-.-

......',...

"11,.0., dise lac a...p..1-^a .1(o4

Co.10e4;a 1 .,^04'^4 a.,a15 .

F,,,,,,i,.....5^4,14:.,.... ba.sot ...

Se...■e^ti..;.,^.1,-FX^tnns .

Ide0k I N,,

viectii.e.eed

pHyLL_I-rE.

'

a..-ey^9.•^b 10.04C^.1.0;4 4N ,,,,^Tau..-.0^ba-.4,^,....04•.-.4.10 ), .s+ft-.510 b.4-ftle^' .",...^ka ,-44 ,ldki...-;;:c

1'0^i....:9 4.1 y c..0.900+41.01

2.0"04 ,^pk yiii4e^■ S .pOl:Skeot^I‘. b/A+ie •roe....i.,3

a^b la 4 14.^61,...te. .

.6.A.

23b

I

I

iRaiii- a a.5 '6" , cka.1%.,^f^1.C....a.......-.44 .

.

1.-...-#...-• 3^ 4, ^3.0 e^-../y^eef:ek•el^co ,-

---.

---....^...........---,

^-•-.-.-----..

----^.--....---..

--... _.,......,

......^"..--

-`.. ..........

-....

....- -..,■.,,,,......._

----..,

-----.....,

....,---

--... -.

----...-.....--

-. ^..--—,

.__.. -,-...„.

--....--...

----...,.

■...._-... ---.,

-...^-..--

-...,................, .....,......._„........_

:`,...

„....,^.

,c-'.6-'4'..c•.c'.....'....•...,4.-"0"/..0.'

re

.F....1),,^1.0.• in.., 44.00-4....1.4,

pol:41. eat &dole^'srasa^aislo..14 a.^)110...

tor...4. •...^so...^-race's.

Me 41 a•-af el-yweau,e0- act

PHY1.-4, 1 -ra

A cot a. ael...;.; et^I ... c.e4 o.....-

23'e5c.,1p4;0.... .5 ai,o,a•

8 14e-kr,^b.-4H a ,^...a. 1..... i , A;11.1,7--001 ;54.011,1^cowl... 4.4^pkylli.l. e

"SkFrra "

.0"‘

,153

Z50 .3 '4.30'1 ' :^al:...0...-

.4;spia,4.....e..01^cof c.5040.404

Intaak 1 ywearike.-ad

,4" f^f^0RFO^-2.511 II^ C......*1.,^2 D,e

m,...,,e de.4e iWee -list.--es ai

PHyl-.1-. I r a

we....the.--e-ei

PHYL.L. I TE

Red^0.^les.s ft ss^;.as^C.010....■

24.9 ' I4

-.-4.-•-

.....1

c c.....i.,#.4^Joky //,,ie^iv.; 41,poiii* • a^fe-a c4,....-ss^IL-

p-tz.^vev...i....,3.

...sot^10a .... 01 s .

eSC.-ifo'l ;0...4 4/C- 264'3 ": c.....rked ao...e

A566'

r:-....f...

^

.....s^:., leas^6•91e•.,

zort as^404.5..allse^ot; 5 l. e..A.^/r

^3--1..eep 4,^,d,•mi....5 4.144.....5of-1e,^1-......... 41,..;, loy...:4ecoo.-4■••9 5 .^So.....^ey..444.erysi.tais^;..^0/......^..P....4....-43 .

^

Co.4......i...1^x o.s. 3^b....a /can

11.. ki.91./7^po ush..e.

.

E.-.4^04

\

___-

_____-

Hole,

.

.

DRILL T TPE^ry-li.,-.4=L tNOTES

' RAC TURE LOG^Rama. , et fractures om Too , RIO^•^Zan.s of cora Iesa aro Macaw] .11

BEDDING^AND JOINT^PLANES ..-- Ana103 are a•es..3d rOati*e to a Was, Ammo , to MA cos. am.

F•41"^:^I...7.,:.+es^e.,;dlit."..^,.f^ske....:-.)

..

WATER PRESSURE TESTSFEED _______Yy_o1.!;e-_______.CORE BARREL T YPE^1-8*IP Le.

PACKER TYPE

SUPPLY LINE_ sp.i.A^i ,..... c .,_^4.,,,b,

DRIL ,EFT _ a.. tvlon.:a..^_ _COMMENCE()

VERTICAL SCALE

Flaws gown ow gaup. prem...^ 1Test sections ars ondlco.0 graohlecolly by bleelgol.on Ono.

PHOTOGRAPH REFERENCE SYSTEMCOMPLETED _ .^- - --

LOGGED RI _ 7.LC r2.14. e_t_zwsLo 1,4_,e .BLACK AND *HITE

VERTICAL SCALE ____I''._.(12" ._^_

_

COLOUR

-1

Page 59: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

,

°ROA C'^ec,te,14;0141.^R;ve).-^Groe.5e.^.pot,.--,^$ ) +e^No- I. HOLE NO

A ir? C 7

SHEET^I^0^-J-

BUREAU OF MINERAL RESOURCES,^LOCAT IONGEOLOGY AND GEOPHYSICS

1ANGLE FROM HORIZONTAL^4.5 0^

DIRECTION I 35GEOLOGICAL^DRILLLOG OF^HOLECOORDINATES^ R L

goc•^TYPE5 OCWEEE^OF^o/E•TNIERING

DESCRIPTION•tr/OlOG,, COLOUR, STRENGTH, HARDNESS^I TC

,,,,,,c

L.OG

;`,EPTE.^oArua,

SIZE' OP^,OGCORE

,IrT

% 6CORERECOVER

STRUCTURESJOINTS. VEINS, SEAMS. FAULTS. CRUSHED ZONES

A1 ER PRESSURE TESTLOSS ^(RIflI. 'P^DR

^.001

/III^(IIIIIII

PHOTO

• 1la^MI

C011arep(

I^iI^I^I^IILII^'

1!

1

!

iI

'1F^I/^I

i^-

Al...1.,L4VIL4011

---

.'-. -

HeAV; ly

a 1 te ,ed

p 14 y 4 L, IT E

( ? )

..

51; 9 1.41y^v.v) °Vie el, v-ctoi -

bre ^5+;C-F^i wsper.,-,...eAtie.)

SCL0(y^GIRL)/^B...;41•5

oc c etSio.,{1i^pky I i;.1-e_ arspt

5 ......! y •••,:t 0 k- e^vvr.)-0•5•se....-f 3 •

••■•••^Nm .^....1...0...

^. 00.0-••

^

o '^ot°"."1",,,,„,0

v^%.:::10!

...,...

osoomi90111,./.."FOO;W

:01°°:

S:............0.-00°0

tom0-.....,-......!

0'..0100'11%.•''''."-'018011;f10..........0:1'...I:ow

iip..40

/00:11

.0

ow•- 0

0....--.....•Sit':

01.00

.

I

'VI

I

I

1

i

H h

!^II^'

I

1^I

■^1

I^■i^1.

i

I^1

1

t

1

II

,.^I

,I^I.^11^

i

'i^■I!^•I

,

I^I

.

I1

!

'

I

II

V

I

1

1^1I

■^I^i1

1

.

-

-

-

.

.

_

P;v, k^50.)1dy^c- I ay

Yellow^+0^ev-ea.....,^s4;feir.,p0.-,...,e0.ble^.s0,101x^clay

a•-ey wocke^be...1cl a-r-.INNS

o

30'^11111clay : No^Rec.ove"y

CRY...^f-e p:...14,^Ti......, ,^r ,,..1 .1.---,...$^•••4 s^1e. Aky

CD 3 2 00,000

-..i,terrAelege,^bet.loi a,..-e

.Sof+^c.I a y

No V". G COW e..."),,^

1113?

•5

woo•os•.00.■60oloroo.eloallaSISjolo:

SO°S.5110110.111010.000017110ell.111e/1111-....010...0.0.7011101;00/Sol:

...I

010

...o.dio!

11,-.1.-.00•0.0.011Woo/‘00.01!

000.11

,,,,„-s+ t.oi^p:. k^an c-i^6.,k:4e.. ,

I l5441^rav& y^ci....^, .., ASO,, 44y^clay

aX^..:-.- TAIIL...41•Mr.:7., •

^■• is:-Ie^4;ffYellow 4.^5SA•101r .. clay^9- c...'1.47^w IA' I,sokyii .4 4..^-...g.,...,a.,- is^1..,p icte-c-5(ke0.....1).^ol+c , c41^p i,/,11,V89

a n

^..^,s.ff^clay

No^v-vecovev--7

^- b^W - .1,,,,z_riA ■./ A. :.,P;,4c.^"ye-no..^c.10,.y-b•-.i.r.-,-^g,........-4 3.^- 5,41.5 1111111111

I-I caw; I y

woccike,mol

PHYL-1-. I TE.-

heo. v. I^•••• gAciK•e-•ot^la L.^it; i e-^Val.I...-.^cL.,^p...1.-iir.4.. c.c...

- P 7 1 .^. ..

'\

\ \

\

\

73'9"

O---^0,^.002.

00

mllo

.^al..

!!...000.01......N

op.;0.010.0-000.,ale"I...01•••I,Soe,irmji_...0-NOIlli000,„0,0...01.09 •■.00,90.--.0--0.0

01

- NO...'" Iop

00

0

"L.5.4,

L,L55:“.I.R.e.oi^pis^ble.ie +J. ^

I,^•

Real. _ i,"......"^......, a-0.1,c,/01.y/b . ie... i^load 1 y

be-0 Lee,.^ft-^cs-.....5 I., e_01 .

tt.,t1;4.e^c-hay

Inade ,4-...ty,.....ea+k ev.- ecl

PHYL4f-rE

, .

.

Rea- ip`ow,^an. o4^9 ,,, y ,

..m.0 al •e+. 41•1 X^II 1,..0 ms 1^,

nneele..-.44.1y^k 4.4^pis y il; i e. •

\

\ \

\ \

\ \

\ \

\

I^.0:0jil^aliol,^%........'^Will

i^Oili

Il^Sollo

11111 :1114.1111#10.

mr.00'^•11.- ,-°-

%OP

010)..055.25Ital

1^gl••;./..."

0,1%

OS

ea..,c441^,,Vp 5^6 5°,I- .-a ci. - 41.1 '^....3^..,.^.7/ Ijmne1;^(5^ 4.)•

0p 3o° ‘v .ly6:Ina; ,)^( 5.1001 1.1 C.o., .1 or.)

cl,•1,^50- 55 . (re...3 k eon ^ 4.,„A'^45 °9- goe'_^.v..-.,,( 4.31,.P44,;,^7,^•^ 1

^

tz^p. to y ,..,•-ie Go514 ..., j

69 C f g ' 6 . ; 2 '^e4^"• 17.0^X V.C..ett nD .

EA a^0^ He se.D.itc^trOE _ft1;.01•••;11

NOTES

r RaCTURE LOG^Numb. of f , acturts as/ foot at core^Zones 0( COM loss ar• Woo, . •■■BEDDING^AND JOINT^PLANES^4,151 ore asmatosa •elaave Ia a alone awn.. to ISe ca/a mos

,-..6•-•/^:^IH.I; c....if e 6^e........Aet Hee.^..?^s is 6...- :....3

vERT.CAL^•114aF^_^I " .:...^10 ' .

WATER PRESSURE TESTSFEED^___ fg_y_cArto., 1 ...c. ._^__ _CORE BARREL t■RE^.17,--jp_l_f-

5/.1,1.^:_an_c..,..^3 „b e .

aACKER • ,PF _ .^-^_ - -

SUPPLY^,NE.........

VI F 7 tC At...A-CALE

DR 1. F.^c.^Mom 't 2.^_ _:o.o.v.K.Er^------------

Lom.1 ('TO^ V

,GOID 8,^T. 1:3 rot- y br.00ke

,,,, ... , 91.5'^are at/ago ^'es• seasons ar• ....goo otoo,ca .. or E.o..^, .r, .

PHOTOGRAPH REFERENCE SYSTEM

Ti AC.^AND 4,,,,

-

COLOUR^_

Page 60: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

APPENDIX 4

GEOLOGICAL LOGS OF COSTEANS .ON RIGHT BANK OF SITE 1

Page 61: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Pro ject^R cielca.c14.- Rive.- e..-9e_.^D a...v.^S.4.-^No^j .

•CO S+citibN^A -^A^0 ••••■^1";51,N+^be," k

St.ce+^ a

So 41%^E a s+ .

ti54..-...-1....e. L.14.^ulc,11. Costae..^?le o ■ ft . N ,^Wc2.11 1...41.01.3 3 y 5 te•en.9+1. Fro.c..4.6.•cS

Ce ‘.14: OA^P Ia."^ S e c.4 • or%

.

—•

0 25/4-7 a,.....ol ...Jos G.•^ea...4oz*,

1......1..tos o^(...44c4 •

t-stpai^Al

.

...-.. ... -.•.-

...,

----

a

t

41

o.)

,

t?i'

001A

„iie

Ili

-.„.^--. ...-.7. „.-

— ..........•••„.....„

. .

•.

.

.."'.........\,---•

— .........-- .....,.......

.^••••^. ^•

T.—..----

_^-^...;.

.-.7=1

^

.^.^.

----I"....-*

••

•'

...

.

.

^. ^,

..-

^

.-^.

'^..--!. r-

-,

..........<

_ -•

..---

.-----

..-----

---:

• ••

^

'^..

.-

• •

^....----^,...---

,......,.../'

•-•,..,

I

-....."'"

r.•"...---- ..'"'"-.-..."--'

..

' •^.

.^.

.•

•.

*.

.^•

•..

.....--,......

.

.........--

•---^"•

..-----^-

-^----.

.....---

...----....----

__,--

.^•

•.

•.-.^-

--

...--""

.----

.......__.^..-..-

--^_...

9

.Y

4-Ite

-0

so

13

e

0

I/

.......4..

/

c.it/

1^-"I''

.......

— _--------

-......

1.411,-„if

•"."/.1,11

5+•-o4 ; ..-.p 6; c^. ^.-'.^'^,.., 1

p as , 4.0-. l • I

,..

ff,

..

I\

/^•

__....._.

—■^..._ ..- - .

^

-- -^,

/'i , / •

f ^/

.0.40.40..4 plyif4t,

'C.,.^9...cy ...c aka

i.- ; I-

oo k^- .... st.-...9

Si...9 ,

f...:... lots ,

closely^.1 ea..c,A.

07^ .5 5^3, .1......

Sea c; ....,^6. - I 2 "

r• 9 •^5 ....cy ......03., d......c...o. Lc^--

....1 •^31,0 ....5 .

00%, Holtz .

4. •9. 9.. r ,.,.. tea.

Weal<

..".^s4 ..... 9 .

^et0Sel.y ^taco:weal

b^3a.444(^f•-a 4....^s

^

.^.^.13

v ea..;^04..9^6.1.401 :,^.

0 a.0/6C 6'

be.e.d;...5^02T/36 6.

6 c71444.3^0 a 4/ 52. tr

6.4014:"9 •

.L. "...^.1-,.^•4.^-^2. ........42.^.e;"

(4-4./4+^we .

0t6/ ^E

.-.6...;.,.

3^,.....Ix. ...e.;.,

a., 4:4111.,a(^a

4...5^tp-.),.......^.. v.:m.1.- -, 6 -I.....

k PV

4'..D. 9.-crvec ke

,ky This.

P'''ete 1

..1.9.^.3.-0.7 ,........ 40-

.g....Q.614.-^rite

4.^64•••0 -ft, •

^o ^•Spcc;n9^a. -24

....oda_^4 2 "

C44-4-.^Fe

.......3 . ray...cis& /.^sq.., ,,,,43 . 5,4 c:...,^2 "

lo.y/1•40.

4", 9 .^tray ....siee.

4/t3O■ Lt c.le........

.C.,1 . 5....y.oacultc.

ply glii a.

C . 9 . 5 et y wo...Iec

Speci.^)^2^-• 6

k,/001.4 V'

.r. 9^0..cy...... ka.

pky at . i a.

-Ce 5 . frcr....e. lee.

SP.......^4 "

I to/ 4c, S^;I.,

f i. ),. fe,.+.

I g .,3•,.c.r.....a.lec _.5^1.-e...3 .

spc........9^12 "

0 0 8/33 e .(o.......

of AA c^I.

pt., tt,*-te- .

p..../.410 ply/ 1.40.

.....44.■ so...a -;.9 .

9 --qty ....4 lee .

p....-rie.

.9.^9 ....cr.... ice.

0 .-4 c^,..e:e 5 .''''

.,.. ea Le^—

..." .^S 4 •-o-‘9,

we. I.c^■

.01^tri.., S.

c (.20...eot .

.

r.o.te...-4 a ty.^it

• 9.9

7 c ace... - bro....

els,. //.4, .

...N. 2 .^3 .-..7.....4 4-e.

....".;,.. Le

.^.......5.

clos 0.1 y

...,GA c.c. c./...

...0st;s•e .

SCOLje 1^I-,^JO^s lope c4;54.2....e..

.^,

Le9.36.1 b y ..^3.i:6-all:woo ice,

rc •

Page 62: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

B.Ae•Lek:cie.^R;-^a .--5e..^Dc..„--t^s;+....^We i

,cos fe...,, :^a - a

skee+^da.^c.;^a

g- --‘71^4 si.,......,...4"...„ 1- . H .^Wall LCosi•em.".^f-s o ik.i4.^Wa ll L. ■4 1,21 .9 y S-i. ..-4.

- 5 +IN g-ac.1-....-c s

Pio,

aq°

*

fotek^caw; 5

bc...14;.. 9^03a 66 NW

bo..lal. i ...3^0 2.1764. 14/%,

v.....-4,^,., e...,

boeL^04-5/52„ pd.."

be...4.014, 5^04-q /46 Nw

be44.41.5^o3 /S N.,

'^9^...4a^...t..;..2^v"0444/ 50 sc

be...t.c...5^037A. Nig

(I\

/^\

,^.

'\^••••,.

-....:\ -.`,,\^-•\\ .\\.'•

\

--:^.

- -.:- --v__-^—

------_,--

.

• ...... -

^. ^•

.^•^.

• .

.^.

••

_ - - -'------^

_-----,

-

----^______.

_-

.^-^_- ,_--

_---

--

1-, -"N \-..,.__

..../'*

-----

.- ....„-

----- -

, -----___ -__

----

.-.^•

ro. — 14.-

.• -

-

..

a^•

..

.

.^• .^•----

..."----

.---^'''

-----,

_^..__.-

; , _-_,7/-^___-

--___--

-,

// /1

1

/ / / 1//i/

7 /....

...,".1.....--.-

....•.^5 •-Cy .••••1c. Let .,

to..x /14., , we.i.c

maw0

13

s tto.

•e •^,,..,.--4,-1-c.

yecfle....- 9.-ae,

to-711;4,

u., eo. Lc .10 s el?, c42.......,f

.,,•

..,

. .3 . re.y .....c44-, .....^5 { ...... 3 . sic...n.3^4..—

...^..-

.

..

.'

•v.

••

•Irl'I//, /

•••//,/ \

/,/ i

//.

.,

1"i\

•••1. •3

{..

r,vy11:4 e

_1.^si•-o -. 3 .

.

v.v.^51.1,0 ..9 . a "- C '

.

•C.4a •

pi., A ./ • .

r■•‘.^54, • 9 •

C.I ¢01.0.1

••••,.. 3^.

.

ye....11o. - 1....o,

pky II;4e_

••••%.^4•-o•.

VI 004 t•C

040 /31 6 )

oc...150....1/Y^

,r,,,.„--•.C:rtad^...

close',I

clea,eci ...-

as°

;70 '

l's -.

I .\\NN.

I\ \

\\ \ \

/,' \ \

,^• •..\,^\^ ...

A^-,^,,,,

/

..

•• ..

,....

.

to.-'121.^,^-C-5 •5.-C y ..•••.r.ACC...

pky11;4e. ,

-,.^Si,- 0.'5. ...-

\^Ns

.^.^'

.....^.

Qv e.- 1.1, s

20 = 30

...Ms^lop^I.

Co 00. ....^N

•9 •

. -, .^51,-...„..5

..

.

.^. .

....N.

.=.1

.

•----...-..-..

-^•0.V.^54,o

-,,

a^'

6-6

• • •

Sc .1e^:^1' : 10^slope .A44.4

.^.

eolto...^of^Co eo.,

t,v.si- .

Lo„. d by •^-3-'^CI' "ay 6 ••.° ke..

Tc.•

Page 63: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

P,^. ....,...fal

Co6fe..a--.

R 4e.too. .1 e_^give,-^C..0.-.3e_^Da......^S;+ .^No I

b -^6^0"^, ; 91,t^bc—cc.

5^± t,^Ea. 5 t

ske0+

ua_ -

w■^45t....c.+•••••e- L . H.^l.../..1,1. Cos •he-a....^floe, R.N.^Wa ll L i .1.kol o

,Y.54-e... .5 41, F.-....-1....-as

ec..1•;0.,^ Pi.^a...41,..‘,

.-0

1

o

b e.4 44;,..3 o4/5..9gto

"^...-42. ve.:.. as .2/ so st"

6 ed 4 ;" 0415i &v./

051/53 5

ii" t s...s.-42, .1....■^076/7s, 5

epiz we;.‘s^spaeo4

bed.C.,, : 04.0/4.? NW

4 '- la"

bit...44E7.4^036/55 RA,/

viz -1...,......life,^‘....-:.,04-0/441- An"'

c,,,,,,3;•se.a.,^ri-2.^lest.,1431/40E^: 071r/42, s

bedA;,....5 0A-V57 An./

-L.^+z vei.,^ozVa-, se

.,^tosyni4....^4....ot

1:**...44;-,5^0 34/58444

,.

N's

1

.

..^•_- _ - -_---

.^•

.^.^.

_ - -....,----

"

k

,

•e

• 1/

;/

.

/ /

1s

;...

c001141"

C"ie'.1°P5 ,

20 -lig

b.14..... • -e

caste...,

a, - .3.

I•^

on^Sfr.o.., .

e Ly II; 4.. k ye...),^b...., ke....

Cl. 9.-eywo<ve.ke-

y....lto..... - 12/-o.....,ehyll;+P..

View. k

yeti... - b.-a 1......,• pkyll:+e

0" . S^ `0^.9

•We...k

bfocA.cy06 ,02150

0 30/5 0 S^, 3 : I 2 '

wen>.^broke.,

-^.

-

-

".3-- '9 • .......^.3+,0 , 9: blocky

-__---

---

--

_

4.

.

I s •

• -....

,

' ■

.^•- -.. - -

v.^An; age-e..,.., wl• .5 -fro”. bi..,-ky

-

-----'

C.9.y...ao,...•-4,-0........,,,..y 0. h e

We a tc

fok....ta.■ / w-----

6/....kx •" 8/41 eoco/84S 141/69 s ,••• ' 4?..-g -

e.lose..ly^a.l.......-el,

rel.c3 .

ye.1/ O"- bra...,

p ky II :11-e_

s.""^S^...° '''9 •

I•

\

.

.

.

J?

.^, ••••L^6-4,-on,. We ..ky

wk.^S4ro" blocio:

_ _ — --- '^i,

.

•-

- 222-

.

bc4.1:ft9^O3 &/5 NW

_

._

. p,..-ple)

....1.^54,0,3 bl..t.e7

--

I^•I

_

\

• \t

I

1

k.--^

t'i -

.

,,

'

. —

I^------. :( -- --

^..- -.•^"

fi 54.-0n5 . 10*.ky

'^--.

H-----.-----T

'.

.

-

-

I^, ^ •I

I

i1

.

(I

.0^..--• 41,.....e41

al..-te^p ...Tic.5.- 4.7,........*tef...

.f 1.^,^(;,k4e.....sele , 9 etre* elte

wa,..k

s••••%.^5 4 ,,o

Veg. y^bo•oice..,.

bloo.ley

040/4.0 St; : I^t

I 22/ es s

....

.^....

1

• weak 19.-e It-a...

4^ise..4

4.0^of

C - C '

fl..701/C

ake•erse.o i.re

Co st ea.....

m • $4 ,on3 4o

.'-,.

block.,rig/g8 sw : 2. .... 8 .

047/20 “. : e- 2'

1c cowed.

ble4*i

Scale :^I".:^10 .^Slope_ *UsE5ottor."^o

L• °'3, "I by :^7. 43.--a.,,b,aoke

Page 64: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

A c I etio;che^13 ; ,.. e,..--^C, ‘: ^ye.^De:1/4,,^S,'. 4e.^No I.

0C^I

iC - C^0 n ...-; 5 1.‘ 4-^100.4C

Se...it,^Efts.

SI, cot

Z 1^5-1 , ...i..,•-el i

L. 14 .^t",,,,, 11Costa. -•

4.100 •■•• R. H.I

wan . I- 41,o(05), 5+,.e..,-1. LI F.0.4 0.4 ...■ ...C.-S.

j, I p...

0'

-

,25i

4$'

b tad; .. 9 : 04o/4 Tiviv

:^I . -^2'

...4,..- C... 6....... I. i ; °A s

ied A.." : 041 A A mv,

vh ,....o. c ran.. 644,11

^Qtyave.14....+^bad

bo4+6....^e V

^

s-1.....^b - b'

...

. ..

-.-

............__

...

----------.---

....

..

---____

.

'.

-

----

7T

'-

-.

..

-...

....

13 oef.k...3 . 030760 Mu/.

oq

......1•.-cdedy 40I, e.......ly^wed:A c..ccd4:5.^.4 a ..-tc -^'

......./........... Gee .

— _ _ - .g/ 1.#4, svearKe.., ad

4:5. ,^Gots, -

p«?te r"-' /re_

phyll4e. •

r•I .^54.-0.'9

-^-^_^_^_

On ,^$4.rsa.05 ,

Le-INS9‘. to..- i y

b... ken

_

1:010.ky

05S/2516 :2=t34/ Ii.34, 41

_

2 '

p..., e/Axil; fa ,••,e- .11 e i e.....a.0

3.„,..t..

^h ^11.4e^r ^Y^•

—,.^s4,... 5 . fate .../.r 7'

-C. 9 . Uiottay

I. a.0....ly^warli......14.15 . 5rey.,. 0 4.c a :

(

er...;•,.1....4^4 °

•C 5 . 9 .....›, ...A.., ,

+op^OP 4'

,.., e-.0 k

(05+02-0....%

b .-o k e - .,

Botto v....,

Sce. I g ..^I^r.^10^51 opt 0(4400c.c.

-L. 09.36.1 by :^7 . G rey b,00ke,

Page 65: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

. Projec+^Adelaide^River^a 0 ..-^e.,^Da.-.1^..5,../....^No 1

Costeow, oi -^04 '^on^r. ; 9 is 1^bk.

'NI

Se..-4 1...e.53

Sko.e.t

■ Y.

17,^654,....f....4.....--e. 1.... H.^Wet II . cos f.met ,A^;lee, R • H.^I.A/6. II . L.;44olooy

i a-••

S+0-a-,941, ...Oa 6 4.••••,..5 .

....

3 *

VS

""12''‘‘‘••••••••41116^l61.;••.

.

4. i :^.1...k....,;ded

L ,.1,......-f2^ .....;.,^//b ed.:C.79 .. 035/Soak.

bc..A<C.,^0a4../53 Nu'

bc.dat^045/44 MA/

ev.......to...+

/6 614^I •^160 140....

co 64 a A A

' • ' C. '

^' ^. 1

.

.

^. ^.

^

.^•

• '^-

• •^•

^. ^.^•

^

.^•^•

^. ^•^•

^

.^.^•

^

.^.^.

^

.^.

^

.^.

^

.^•."^7

.

IIPM."11PaPIP#4.41"11

.^...-

....

...

C51

Alh,

,..

•, •^r•Ly••.46.4 Cr

• .,.. - - .

•.

_.......---__......-

...

^

.^•

• • •

.^.

• •

^. ^.

^

.^.

.^.

^

.^.

.

•—

.

•••

.9.^pr6r.666.•16••

.

•••1.^... 0....5

av;tio,^...-4..4,C •

b....A.5^.

0 65/Zi M.,

ii lock^...4+1,^.r0C42.5:0..0,1

b •-oke..^ac.one-s

w....11,e..-.....1 . 4044

km....41.or....1,

broica--.2c......c.

w ao. lo b,...140....

...

.9. 5 .-e.y ueete.ke.

eky/P4e..

5••••9•,^"VI, 5 ,

•I e'er,. 6 kg .

V.^.r...a . ,^p......7, ie.

i ...ay yoga.. le..

r 4Y ini c

...•

v.—. k•

...... 4 .

16 1 0CkVV

024/336 .: 4 - - I '

.

clos o/y

cl eso vel.0( 9.. 4....oko.

• .

.

• •

• •.^•

.....9 .

la

P ky

....^84,0-'9 .

%laza k.

btocky. .

-1_••c.1...a.....4 . - 4. --

"^4.21,....lor

. "C. 5 .

,.....A - bro..... ....•.o.k.^cle......../^• L ...... a"• •^‘...^,

.....

..L .I.2

80

.

• •.

• .

-

••

• .

• .

.^'C.5 . 5 ft.rwsc lee ,^'"'" "1 IC •

4 elo tea , ,

• • • • re.. 9 .^9 Ayy .A.C..4.0.. VW% . 51"•.6,7.9 . biGC•Le^,.

Scale.^•^1^: SO^Slops^01;5 -io.,a

,

"S. 3 ,tay brool•nit•:Lossed by

Page 66: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

P.- oj a c+^ LI..51..e:...../LY.1-C.--.---4..-^N.'^I.

0-P^a .

Co Sia.00n^ A-^c* '^001^te":914t^bk.

• $ka.... 1"^a

i- 4, st........c s,...„,, L. H.^tv., 1 i cos te........^Cloor j. H.^V./a 11 /...;41so 105 y S + e.c.--• 5 + In F.- a c 1,-...•.e s

P I cx.,I

1241.

'40

r arta ve.:...: II 2/73 5

474"4"5 ' 045/52 &AV

bcd.d; 34. No1

/: 2 ' $4z- ke....a44ev.2.4,^: I 61/6o NEbcatnli.t5 ■ oq-8/45Nui

rya- Ss o.,0.4;4•3. ve:-,106/90

a ,1 1-a-hcr....,,,,-1:1Q. i.e.,° 160/40 4

b oclet;..,3 : 045/40 0/te

6,-.1,14,„^ogalp kw,

.

.

-

.

.

.

• •

• ••

.

.".9 . 9 reywac:ice.

on • 5 .

•,. 9.41 7 .."...140.

^4.r;able. ^4-0

one cs1;........

s I. oe...5 .

^C-:able, t....^be

block Y

b^D k e...,

. •

.

on. V.

.....5^-4o

pi.7 //ae

rot cal.....54..0..5.

wea k

block.

b•-ei.re....

.

.

.

-

9 . 5 eereAtiCACC. ••, ■ Gel; ., owl

.

b lock y

03741 SG. ‘ii-.24 .

.07/355 :4 gSv.v.,.

-^- - -•

a ..-; f'4.s.s.

4' 9 •

p ky /1...ie.^•

onc,4;..........5 4,01,3

weak

block,

od oavcol

.-

.^•

- e^•

.

-

•1/

.^.

,3o.: +

• .

C•• 5,,...-ke;Ile,-:4 o^.1/2.9SC., CI^a. on ct s

flaky//e^...;44.

pa4 ; a i^1...44.-.4:4

cove.-

otia-cll.........

s4.eo....5 .

....i.^34 , .... 5 4..6.0460. k

weo. k

b foe...Icy^,0 $38/64) S ^loaq . /So 6 , I L I .

block y

--

•• • .

T.^ • ,3 .^5,),.......1...

..1.5.^5 ony wo•dce.

C.5 .if) kyTh'ie ,

..n. sfoo.,, D 4„

woo k

bloatcy ,

___ _......--.4,^r..1..- . 4,2

B off on, of Cos+ea"

(0 '^

Op a 01 ; 521_14..c

3ed by • ,^Gray bv-ook-c.,

Page 67: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

CC s+e-o....

F:fole-14..ole,...^1:2;■.,e,..--^a CD ./.9 IL.^. ^...I.,^S, -I- e_^/V* I.

C^-^e, '^b e.., 1.-, ;,... et^r- ; 9 1., i-^loo....- 1.‘c .

s,......*Sowi k - .., a. al. .

i^.4^7

0OS^0

....c..4........ L.H.^to.....11. Co 54.40, -Pio a.- Ft. H. Wa,11 . L;4401asy 54 ee.•%54in I -t-4 -41.•^- ...AC. 5

5 .

,

C...-0.,.... laic...4 .

hooloti.,, 5 o 2.2./4.a. tvw

eototr.se^044140sitV

.

- OP 4,

7. ..

.^....

\• \:

■:*

\\,...,\ .

N..

\\

\\ \\ .....\\.•

\.

^

\^.

^

..-^`\\A

\

\

.

-.

'

'\ 7

.^7

.

.

-

\X\ \ X

\\

\ \\. \

• • \... \\`s•

\^.

\

\

\

\ •

\-\.■

.^•

•*^•:\

.^.

'

. .

al,y11:4- a-

oo 0-^'Y.^.

- 9 .^v ,..,ice....

r^-- -^-„.0.....ic

......^5 4••"-c• ....5.

-^.....

14:0.nte4e.^.;C.I.^."....1.4

ri.76.44..._^.^.

4. g -^p....yie

5 ry.r,..m.c. 1-c.- .

- --

e k, /1;4-a ..^..^.^.

‘...........1.c..^.^.,

c..1.5....iy^c.le.........d

0.

45'

r, k 7 1 i ; 4 e..

T.5.^lwke

,A.1.^1..., ice..

_

wve.^1c

.....^s+.-0,.....5. blockyt

a,fk y^ .

.

7,3.^1...4ce..

t^ea. IC

-

.... 54,0^.

ease ty cie....weig .

loc.,4,.,..1

...

as.1.pl.),14e.

,..^- ^"4-S

.^9""^'9 "Ae ' ..)

I,^1 P°'"

c•ca.^5 ..-ic.,...)

c. 5.^9,....ke^,...•41.

.........k^...... 4.-4 k ...Nu,

•......z...1.-

1.10.3cy

Scale.^, L: 10^Slope-^cA;34ane....e

,^e.t3,....lt;4 .e.^. ...^.

4'..5•^5....ke.

.^5wke.,

.

no,N.^

5 4 -o.-.

^. ^..--

1,10^,.,'lc I

0^,

LoTrol^by •^-a:^0 r-wy be-0o ke...

Page 68: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Cosfeer.

(id a a^;ve.---^-Da." S.+e..^No'•

e - e.^be in;

Skeei a^-7

• 1e;vio I I Cosle.4%-. Fic>0.•

P

p 5 6.4

I 1.;14., olo5 ), I R.-..zx

• INIP

o4-7/431vw

oj

foic1 a•x; s

<20-7/5 6 N E

0••-■

e..4.54; rtj 012/ S4-NE

n11.

eky iria

Les• 9 se."^•

^C.9. ^5 s' i` e

ev1

blocky.

063/5o.SE

eL7 II.Ve .

5.s1 , 0

. 9 . 5wke. 00-7/401 E

4.

1,„kr u,ve . wec.k .

Oar

‘42/56 c-•9 .

. 9, ) ...km.

pky ll, le

'9 . 5 k .

(v. v., o4

4 3^5 ,..„ C,

b.-014e, .

*32./430“/ : 1'

p5/43i5

.900.

Scale.

1" : lo^slope al;^,

y^ C3 ,..coy^e ,

Page 69: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Co si.e,

Si4..._^No^/

3^f^7

.^14 f-^Loa., k..e -^a '^bel.,;-,o1^e-,5

SL.....t

d v

WI;^i5+,......+.....-.. i-..H.^vimit. Cosi...,^r(..- g. I-4 •^W0.1 1 .

I

I-. : +kola, y 54,e^4t-,

2..3

--

15.

6e..64;..5^.74/4‘ E

6colet:... 5^001/S1 6

lee...14. ..1^Int /.5 9 E.

ev....,4z.^,..,....:,..,5

be..tol.....3^1 -'4 /406

o

I

!

i

1

,s.

• %

,

•\ -.

\

N.

^''''.. ^-‘•.,,

^\„. ^••.„.

' ;^•,,\

\.%.

.

poo .-^• ..

.

^' - -^-^•

No

^: ^.-..,.,

••

^. ^-...

.

.

.

--,,,..•.

^. ^.

.^-^.\..

-

.

\ s,

^

.^•\

N

N N /

.

.

-._,

.

..

.

•^. ^.

/. .,,

^

....^...

.

^- ^_^...

0,,,c

• ..

^, ^-

...

.

.

--

...

• •

-

-

...

.^,

'./

/

II

.

.^..-.

.

f -9-^9'''''''''''' k e:

pky ILA e .

.....^s4........5.

•5•^r-e.r.....4. 4ce..

pky11:4e.^.

54-....,......5

weak .

1.1..c.Ley

el 02..t. *al .

' 9 -”---- L.' e-

4-o

p 1.7 11:4e•t,,, e-4, 14 .

I^5/.5.8 Ai:

<A caved .

ise.ror:17^v. to.44...-edpi, ti,'{e.

..,.^5-• I re ...3 .

w eak

^

kw-.^••-•

^006 ^w : 2 '-4

^cl ^..t.

.5,^5.-.1 ......... 4,.,

.40,•.5.^ ,tr.,. c ke.

po.,^°A._^.

5,0".....oe.t•ce

04, 5.^5 ,er...4.cl...I

— -. -

N°^04-

-^"....*C.A•41,11.4i'd ......c3 -^c^■5

5.•-e..7....o,.• Lte

5^5.-er......Ace4.

pi...7/1.4e-

•••1.^34,0..0^o4.......a<

...1.^Si.e....5 .

-

-^S_-S'S-^S'_5.

...., eat<

.-

we.. Le

Igo asky 1.%. 4-6lala

046/341 NW,

-^-

4

-

"

4214.,,k),

.5'5^g rik,, ...NI...Aft. ,., .....1

....■----o--.•

.." • 5.^s eny ,....0.ke ev% .^ka .../.4 .

rS Cc. I e^:^I^:10^slop.^oCsi4....e.

Los5ed^by^•^z--,^SrNayb.-ooke ,

Page 70: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

R-c,je.c.t

co 51-e.a.-,

TR.rici...a_^R...e.-^Go.-5e,^D. ^S; 4 e_.^Not

4-

,e -^e^bal-t;,,c4^.-:,..1,.,1-^10 „,, ^k •

51,0.1.4

(1.5-1,-.....4.....-a. I- . 14 .^In' o. I I . Co Simon^Floos .^H.^■••••14 II . L- :4 i., o ol 3y 5-4--..-.1.4. f•-•• .. - 4.....- c -

__ez,‘ c...^. qz...L.

du

Ji

......\\

..,,..._N.N"...^-,..,....

'^".

*"...„," ...s.,^....

N. \

.

,..

.

...^..^.s.

.

.

, . .

.

.... ■

.

-..._-.._.

'

N''ss.

a n

N.N.......N-...,

.

, -

.

0, •N.,

`..N

N

N.

.^.

.

4.

.

.^.

..

..

.

••

-......,

.

.

L.'■

. •

••

IA4t1P

ca. c. . on

.

e•■• 9 .^.3 .-.7.•••4‘, ..r.a

r t., 7 li: 4-a v•ee.....teC.le.0.0. (tot^9-

b•-•c• Lee,"

S 00

t;C

5 -70

bo.del:..3 006 /6/^6:

b cader... 9 coz , 415 C

bC441,0,9^I 1 11/60 e

r00.4 I2^...O.+, ...el.3

/ittlf:or.9^41 VO,^00 C.

i'",014 /46. UV

..., 5^-

5,..,......., t...

e3......,::.;......,s..a.,..::

Pk7 /1:4"2- .

g -ay .......0..ive^--- s . ^si ,o -., •

■.... act 1.c .

^— . - ^.^....

...Jae. le .

0 e•c.

k;,1..1›,^6..-... ke........

be-o Lc a.....

c-Acca.s.c.,,A .

4,5. 9,ey ....PAM

C ,.^.a.,.),.u.e4e lee.r-

pt., 14.-la....

...,etege

weal< . e.Aeco/e-ct^"-1^imeoke..-^.

esy4 64a . Wee.. k

("go/ It t N

1^6,121ca.....I <A.m.,. act

1

• 9.42-r-•••••...4,_

sr 0-ticoipl. ). 10,2.

v.".^$ 4 ,0.....3.

■....., e.-o..l•C

k.lo 4.k^40r......ta., .4b

, 096/7o ev . 1 -6

0-t ease 04

r"..13.^9.4l40,,.

.^3 ,...,,,,.

pk y lf.4.

wee. LC.

we...Lc.

,...,......k

■^1:0'.0k.li,

02 3/520..1 : 6-- ic,-

c_le..........1-

r.N. 5.^5 .....k..C. ‘3 •0‘,11.4 0-.

An.^54.-0 .....s

Welt, LA. .,

Eolua-loty016/06, 07

.),.....tect-

_^_

o /c_

C . s .^1.../ Ica .

■-•‘..^5 4"0....,3

.^_^_^_

,..., c...c. Lc^4-0

.........^$4 , 0,...5 .

btooky^4-0

4-,mk”...42---

_^_

1,...a Lce " .

4 0

40o

^

ScrAle^:

L os9e.01^6.7 -

t^: to ^$ I o P c-^au 54...c.c.

I'.^0 oo ke .

Page 71: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Pee qt...4

c ojrfe.44....,

19 de,i,„ -A,^R....c.......^C...o.-^e_^Doi...,^S ;ie.^No'.

5^.f^7

e - c '^loe.t,:-.°1

s 1-, Q.+

i 1^51...........1--..-..- 1.- - 14.^let4•11 cgg-itto.^CL., R.N.^t.../.II. 1....;+kology S-N-a....,-N, r..-..c4......,es

—50.1....414.•■ II.....:_____:_

.

^. ^'

.

.

,

4N

'

-■ " .

.

• ••., •

\.^N-^\

^

\^\\.7,..,

\.

N,

_ .

.

.‘...

... .

5e. 3....-

. 9 .^9 .... im.

rky//i4e.

.... k*---eit . 6 so cic Y

6 °

-

See'

10,1114.^0 i''y 4 I g ,

Iniu tk^Le.^ott.■•• , 42Viirin.”

bet#.1^1 12154 E

L. Aotet;^09/7+ c

.

ut.,12^V e....,

VI -10/46 W

bake-, oo8/4,06

..A^etwa.-1.2

.

^N ^'

^

, •^4PN,,•.,

^-',.,--^.

^. ^Of'',.■

...

'

• .\.\

^

\^\ •

\ . \ \• \^;

^‘' k'S.^\

.

.

• ...

^

.^.

^. ^...... ...

k..,3 .^lwIte.

1...jii.4c.

.....•

tales ky

9-4....1.^

Lce-C....5 .^1.-0.10..-...e....y.

;-;...1,/ e.. .

e.......e,"^.^4

jors.^I,a,A, blocky

.

r. ,, .. ,^■ r.., ke-pkytr:46-

..r.--.6.14. 9.,..I■oak

^',.. koezst .

ekylh4e.-.

pis y /I .

k a-my ;17

5,ex -..„....Ice.

^

f.9,^5 -..k..

..,.17^,,,d,,.41.e•-•.1

^

.9 •^, -lc..

we...c. lc^9-

5 oP-/- .

,...,.^Isc,"24.

p-

,.../e...al.c.

,

/... oe 5 eol^by :

10 '^Slope_^al; 640...c a.

5,^8 +-my 6 e-oc, ke_ .

Page 72: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

19.-ojet.....*

c‘..s4ect,

fq.del...de R;^ 5:4-e_^Not.

-•

,... 9 _.e^- e '^be..1.,;.floi:^Li'^k)c*.-, k.

34e.e.4

d

n^ct5+,......4.....-e.. L. H.^LA/.11 Ce.sf...a.-.^.Pleo•-- RI-I.^L.../... 11

soo'

_60

be..4,4:....^17 S^VI E

'

ipe.1.4...3 o2o/6ge

^c>75/45^,,L''

1 - 2^9 -...-fa _ve.;-‘I -7 cr/5 1 t

( 0,10, 5^be...44;n5)

dm

0tn

-

.

\\^•^.

\

\

..^••-,

^

.^•

^

.^..^••••■.

I `72‘ N

N.. •\

'

\

.

...

-^.

'

•,

.

...^--

.^•^.

4••.......

'.4.".....

,...^•.•^''

\

"----^'''^'

.....-'

.

n

el0

.

.

, -

.

..,

..--

,

.

\

..-

1.,i.

',ilwk'',^i

6•'"''''

C.9.

r•I-•3 .

(p"::,:e.,-^6. )

k; 9 I. ly taesallnee...1

1.4Z,;415a01 .

.C. (3^9 VV ICe..

tc_efe....;4;t004

50 C-+

t

c-s.^',,,,...lee. , •

.4,...,3

9,.. ,+.

.., •

tweak .

S. ff-.^...

;.

...„,.. 5 .^9 ..... Ice •

-V-9.^9w i"- •pkyth•-te.

so -C4- .

6.C4^9.^,....,

•-.-9 "^9*"" '.5a+

C. .^.3....'ke •

eky//;+.e.,

r.,.1..0....-04..

, s4o-on9blo.tcy

o?Ai s

9 .. 4 .lea -1e,- . -1-; s ea .-ti .^5wiee..

5.-0_ywack¢ .

p-- Soef

cos Sie^:

l...03 3 e.01^by^.

1"../(:).^slope.

yG...-cY 1,,...-0 o 1,-.2 .

Page 73: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

Pectic 4.4- .

Cos4 c.o....,

Ode- 6.;04.-^12 ;ye ,-^Cs,"..--9 .,_^i),:x^S ,. +e_ No 1 .

-7^,.-C -7

e -^e ,^bek:-..A^.....;5 1-+^locv„,k-.

st,....+

ill^1

v%^61.-- H.^Wall. Corley...^-Ploy.- Ft • H. Woll^I 1... ;41%01097 S4,-e,9141

• ‘5^c,4;0.-%

16°

NO

440' ,

.

.

by ..4.1;....) , 15(/41EtovcV

kr,

\

..

.^.

.„..-i...› ,

..- .^-,...

.,-'''

-^' ...

......_

.•.

...s •r-

..-^-

,

■C''• 'A....""

.^'...^,

.,„...-^.

.../..•

...

--

if

..

.

\ .

.-•

. . ,

^--, ^-

...-^.^\

• -

....-

^.... ^-%s....-.N,,,

N N.^N.

^e. ^.

.

tvIIC

V)J

...

11,:,l..ty

rs7—,....

I 0,4e...seat

g...../..... ;cc.

.^;

r 5.^9.-ey .......cre9-

c^Ili 4 .

s.44

we....,k.

.....

....

wa.+1......-ed

^

.--1.5.^4.

5,er,OLC. ke.

^IN : ^6 1 •

^

1^/

weix4/%13..e.04

Trey...elk C., 1-re •

So-R 4

‘../...... k

.

,AD

8 0 14 o .." of'

-

-

44,

Co 54 e-co, v. .

SGO■le^:

4•059. 01^by

:

;I^. 10^Slope^OUS+00.1C'e .

,.S.^Ge•Ckyl,'001•Ce,

Page 74: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...
Page 75: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...
Page 76: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...
Page 77: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...
Page 78: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

0 0

•Tra

ce o

f^I

sect

ion I

CJ

cr)5 N 0 (

I)0 8

alli•• •• •

(D —to

CD • -1 CD

.0 CD

rn

0 0•

••

CD^

CDCD

-+

Page 79: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

0 0

o o

TD"

CD

00

(.0^

-A0

0^

0

•.

0 •

:

Tra

ce o

fsection G

H

■■

0.

—0 0

—o

o •-.,

o•.^

co --, o -, o^

(r)

ID(,)^

cbo^

0c^

(t)

0^

s.,

i C

bCO^

(bCs

'...

s•

r).

cz, ^vw

4.,^

c)

L^

Qso tz

t^(k

0^

0 \

.)o

cb0-^

44 n

.' V

(f) ^

■_. r - •-

II..

..0^

'IN

()

c+1^

'ZI^

'' '..

1 s....

0 I

:1'

CO Cb^

',.

10^

"...

(I...^'4

.

0-^

kr) '

'0^

--,-I^

0 p

k -ci^

ti t

0,

0)^

--,

ct,

N

0 0 •

••

,V

I Q

iCD 14

. t0

(11

. 0

...I

:.1

%-.

..:

...7*

----

(b

0'•

(A0 c

bcl

iVI

.."` 0

.

1J

J 0,F

0 IN N

) Q/

C) 0

k0 C

j"Q

o ,

.,(A,

\.)

1,

p

C .) -

Page 80: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

PLATE 6.

ADELAIDE RIVER GORGE

DAM SITE No.l.

Composite Stratigraphic Column

of Quarry Site

Column of Quarry Site built up from outcrops

near Section Lines A-Band C-0 (see Plate 3 1

Many correlations between outcrops are inter-

pretative. Quarry Site is entirely within the

Noltenius Formation.

Phyllite

O 0 0

0 0 0

O 0 0

D 52 /48/237

Fine grained meta-greywocke

Medium grained meta-greywocke

Coarse grained meto-greywocke

Grit

Pebble conglomerate

Sharp boundary between beds

Gradational change within beds

Scalein

feet

S-li

cli

Composite^.Strotigraphic

Column

Remarks

o-

to -

20 -

30-

40-

50-

60-

70-

80 -

90-

100 -

120 -

140 -

160 -

i80-

200-

-

-

-

_

500-

_

_

-

-

400 -

_

-

480 -

Phyllite

VVVVV\AA/V~AA/VW

cleavedGreywacke

VVVV\AWA\./VVV\AA/VV\

i^ .1 .3-1,--bi:• • •

• •^•D•

Cleaved and friableat surface

V^0,,,,^0^000000^o

• .^.^•

o • o"6"0 O•^°

• .^.

Elsewhere

No o/c

29 feet of meta-greywocke

"c;O"O a Elsewhere 7-13 feet of gradeda 0 0^0 C; "a . 6 . a; a 1 conglomerate and grit

No o/c

_.^- ^...

No o/c-- ^-Eig.• I foot bedding

• No o/c

.........

.^•

B^...^...^i'i!i ^../?^.^.

Co^o

—_— —

_.7-------

No o/c

:•^:^'''' :•^•^- -- . ..... .•

• .^•^•^•

Cleaved and friable at surface

.^.

-:—.^r•.:,:.7•-.7:Highly micaceous,

- .^.^•cleaved and friable at surface

0^0ci000^006Ob00'

'.^•

-•''•••'-"*": Friable at surface

• .^.....•.•.•:•.•'

•.^.•

• ^.^.

.^.• •^.

90^b

.^.^.icrea- vv•d•av^•

• 0o^

.'0204,0**0* .tiVb-

ALA A.A.A.:a.:ptscaLa;

:_n_amAllicen.b.4.-Jr_0

• •^• Cleaved at surfaceA

\AAAA/NAAAANAA/VVVVVV■

Phyllite

Bureau of Mineral Resources, Geology end Geophysics. April 1967. ro accompany Record /967/120.

Page 81: GEOLOGICAL INVESTIGATION OF ADELAIDE RIVER GORGE ...

al„mem„Aim=

^

^=AI^Aron:. ^„amp ^d mow'y^ ud..

^ 111111`.%.': _

PLATE 7

ADELAIDE RIVER GORGE

PAKTERN OF FOLDING IN ENVIRONS OF SCHEME

CONTOURED POLAR DIAGRAM OF 610 BEDDING PLANE

MEASUREMENTS SHOWING THE GREAT CIRCLE AND POLE( plunge of fold axis : 34° on magnetic bearing 010°)

CONTOURS PER I% AREA

12% 10%MOMMOMSMO•M I

8% - NIBNMI 5% 3% 1 0/0

To accompany Record /967/120^ D52/A8/238