JiUKONlAN JOINT VKN'i'UKK WKLCOMR LAKK - SUDBURY …

41P0C.SE000? G3.4308 EIROWN l MG

GOLDJ.N S1I1KLD RJSvOURCKS LIMITED

AND

M c VI H J,K Y GOLD MlNJCS LTD.

JiUKONlAN JOINT VKN'i'UKK

WKLCOMR LAKK - SUDBURY DISTRICT, ONTARIO

010

June, 1984 P. K. Sarkar, Ph.D, B. H. Wilson

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11P*GSEe0a? S3.1308 RROWNING

Tub!c of Contents

y

Inlroch, 't ion

Scope- i f Work

J.ocftti' ri find Access

Gc'iierr Geology

Struct! -c Geology

Feonoi ic Geology

find Values Obtained

Discus on o f S ampling KesuHs

Kecorn fi

Dcclfir tion

010C

Page

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The On ario Geological Survey has detected anomalous ernounts of gold in e quart?, pebble

conglor erate of the Lorraine Formation, found in North Williams Township located

bet wee Sudbury and Shiningtrce.

Field n Eipping in an area of eight townships has defined stratigraphically arid aerially the

present u of an auriferous horizon that may contain significant accumulations similar in

many r spects of/any gold deposit found in the Witwatersrand of South Africa. However,

the ge logical controls in the area studied are felt to be different than those of the

Witwfit :rsrand, and as such the size and shape will be different. Late, cross cutting

quart/, veins in upper Lorraine quartzites and in diabase sills contain sub economic

concen rations of gold (0.08 to 0.10 o y,. A u/T'on).

One hu died and eighty-eight samples consisting largely of middle Lorraine quartzites arid

pebble conglomerates were sampled and analized. The analytical results presented herein

are di* ippoinlingly low. However, supergene solution migration is felt to have been

active, causing mineralization to be immobilized.

A prog am of stratigraphic drilling and perhaps detailed surface mapping {@ l" - \ m i) are

neccss ry to work out details of the subsurface stratigraphy, and [Kissible location of gold

accum lations.

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Page 2

GOLDKN SH1K1.D RKSOURCKS l.lMI'i'KI)AND MCF1N1.KY MINIS 1.1M1TKD

HURONIAN JOINT VKNTUKF. PROJECTWK1.COMK LAKE - CHKYSLF.K l.AKK ARF.A

SUDBURY MINING DISTRICT, ONTARIO

1NTKOI L1CTJON

An occ't -reiice of gold in quarl/-pebble conglomerates in the township of North Williams

has bee reported by Dr. A. K. Colvine of Ontario Geological Survey (Northern Miner

Deceml: ;r 8, 198?). Dr. Colvine pointed out the similarity of these rocks with those of

Witwati "srand quart-/,- pebble bearing conglomerates that produces 6096 of the world's

gold, l r. Colvine's samples which contained 1,500 ppb gold came from a boulder whose

bed roc source is consider to be local in origin. An outcrop containing similar secondary

mineral of hematite and pyrite was sampled by one of the co-authors and assayed 1,650

ppb (O, il65 o/./ton) gold. Although subeconomic, the auriferous nature of these

congloi erates prompted Golden Shield Resources Limited and McFinley Mines to stake

claims r\ a section of the large Huronian sub basin situated in the townships of Ogilvie,

Browni g, Unwin, Stull, Valin and Leask. The writer was subsequently commissioned to

map th area covering eight contiguous townships between Welcome Lake in the south to

Chrysh - Lake (see location map) in the north starting from the middle of June 1983. The

intensi' v f ield work was completed on first week of August 1983. This report summari/.es

the fin ings which includes extensive arid intensive sampling of the interesting rocks and

their g ochemical analysis or assay for gold.

SCOP* OF WOK K

The n i : a under investigation has never been mapped in detailed by any government

survey Only regional geological maps (Map 2361 and F'300) are available. The survey

discus? :d herein is reconnaissance in nature. Its purpose was to establish a working

stratig uphy for the eight townships covered and locate the favourable horizon(s) for the

accum laliori of gold mineralization.

All rof 3s and trails were traveled arid out crop areas plotted on appropriate Ontario Base

Maps. Airphotos were used to supplement interpretation in inaccessable areas and avoid

areas i f extensive drift (usually sand) cover.

Stratif -aphy of the Huronian rocks of the map area appeared very similar to that of Elliot

Lake * -ea (eg. J. Wood's publications O.G.S. 1968-75). Rock Formation are presented in

Table

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Pa q e 3

LOCAT 3N AND ACCKSS

The stu y area, shown on figure l, is located about 50 air miles north of Sudbury, Ontario,

and abo t 18 miles south southwest of the community of Shining Tree.

Access o the area is gained by bushplarie from Sudbury to Welcome Lake or by highways

144/5061 stud then bush roads into the area.

A Jlydr Mectrie high tension rower line traverses the area studied from north to south.

There i; and has been from time to time a road that has followed the power line and is of

margin* use- for gaining access to some of the more remote corners of the area.

Travel lilhin the study area is hampered by large expanses of sand/sand dunes in the

norther half and rugged topography south of the \Vanapitei River.

GKNF.K ,L GKOUXiY

Arehea basalts in the north of the mapped area contain quart?, veins which often contain

gold of economic significance (eg. Shininglree - Tyrenite). Archean granitoids are more

promirn it on the west, east arid south of the mapped area.

GO W fi; NDA FORMATION

The Gc; vganda Formation has only been observed to the northeast of the map area in

Leonan Township. This formation rests on the Archean basement. Large boulders are

believe to have been ice rafted into the area mapped.

1.ORKA N FORMATION

The Lo 'aine Formation demonstrates that climatic conditions in the Lower Lorrain limes

were si wly warming up. There is a general maturing of the rock types from greywacke*,

up thrc igh to mature ortho-quart/ite.s. This feature is common through out the entire

Huronif i basin.

Lower members of the Lorrain Formation shows preserved clastic fragments of feldspar

that W( -e presumably derived from the basement granitoids in the vicinity. The pebbles

in the onglornerate ere mainly quartz with subordinate jasper. A large portion of the

quart?, i the pebbles are of igneous origin and may have been derived from the auriferous

veins ii the Archean basement. Pebbles are invariably rounded by fluvial transport and

the de ree sorting of the various sizes becomes uniform at higher levels in the stratigi tphy.

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Goldc Sfiield Resources limikdMinor an Project - General Geol^g^

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LOCATION MAP

FIG.l

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Paqe 4

Oomni' neing with Unit 6 (Table 1) the Lorraine Formation shows marked changes in itslitholoj ieal character. The amount of feldspar decreases markedly and those remainingfeldspf -s have been altered to Kaolinite. There is a higher degree of sorting of quart?,grains nd in addition, pebble horizons likewise show good sorting and Hematite (ruetalicand ea thy) has been observed in the matrix of the conglomerates and interstitial to sandand pe tile grains of this unit. Minor pyrite bands have been observed in bolders of thisunit wl :ch hove been sampled by the Ontario Geological Survey. It is these hcmatitie andpyritic jands O pebbles) that are gold bearing.

Upper Lorrain Formation shows sedimentary features more indicative of a aeolianenviror iienl. The maturity steadily increases to the topmost Unit-9 ortho quartzite.Conglo nerate horizons in Unit-7 and Unit-8 are more unimodel end the clasts are morerounde than those of the units of Lower Lorrain Formation, but are not continuous forlong di tances. A part of the Upper Lorrain clasts are possibly reworked clasts of LowerLorrair rocks.

OOKTW N LAKE FORMATION

Confor 'lably overlying the Lorrain Formation, the rocks of Gordon Lake Formation arc mature finegrained mud stones and silt stones of variegated colour. Alternating reducing arid o? di/ing conditions and warm a climate are indicated with the deposition of evapor .cs (H. Wilson, personal communication), hematite/specularite.

HAK K VKK FORMATION

Confor lably overlaying the Gordon Lake Formation is the fine grained quartzite of the Bar Ri' ?r Formation. This formation is generally quartzite to ortho-quarlzite with minor hemali ic alteration.

N l PISS! *G DI A li A S F.

Nipissi c, d iabase is represented by large sills within the Huronian sediments. The basaltic magma probably caine up faults as dikes and then spread laterally as sills. Many feeder dykes ' sen in the field confirm this observation. Uncontaminated varieties are gabbroic but wri ii contaminated by quartz sand (presumably from the Lorraine Formation) the gabbro K'comes enriched in quart? lo form quartz gabbro/diorite. The sills are thick and occasic lally show, in places, differentation to granophyre which contains minor

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l

TABLE I

of Formation?.

16. 'rondhjemitie/granodisritie phase of Nippissing diabase.

l 15. iippissing diabase sills/dykes (gabbroic)5 a: with pink quart? crystals, very quart?, rich.

l 5b: completely oxidiz.ed to red colour with rernnent sulphide.5c: hybrid rock four assimilated lluronic sediments.

UNCONFORMITY

INTKNSF. FAULTING AND GRABLN FORMATION

]4. IAR R1VKR FORMATION'ery fine grained orthoquarti/ite.4a: with hemadite staining or overall pink colouration.Ab: w ith green coloured thin slates.

l ]3. JORPON LAKF. FORMATION'ink, purple, grey, buff, coloured layered impure quartzite*.

l 3a: with hematite in matrix, sometimes specularite.

l 12. "her t and Jaspery thinly tended siliciou^ slates.?a: tended hematite quart/ite.

™ 11. 'ink and green thinly banded siliciou^ slates.M la: waekish with worm burrows and generally massive.

10. 'ink, gi ey and white banded quartzite, l OR: with some sulphides especially chalcopyrite.

l ;ORRA1N FORMATION9. 'irik arid white fine grained quart? arenite (distal facies)

8. Jnimodal coarse or medium grained quart? arenite.

I R: locally polymodal, b: local occurrence of small abraided quartz pebbles in discontinuous

^ conglomerate form (reworked from Lower Lorrain Formation)

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TABLE ] l r. t ,(Cent anued)Tab] c 1 of Formations

7. 'ink coloured quart?, arenite (not very matured).l 'a: with graded bedding structure and occasional small quartz pebbles of

reworked nature.

6. Mnk stained quart/, arenite (angular polymodal quart? grains). l ia: with quart? arid chirt pebbles.

jb: as in 6a but with hematite and pyrite in the matrix M l e: with some detrital mica flakes from pegmatitic source.

5. mmature quart?, H 5^. pink feldspar arenite.ia: with rounded quart/, pebbles forming conglomerate.

l 4. Arkosic immature pebbly sandstone (5 to 159t. feldspar).la: conglomeratic with larger rounded quart?, pebbles.

3. mmature sandstone of coarse arkose (less than 15*^ feldspar). l la: conglomeratic with rounded quart?. pebbles.

m 2. 3 OWGANDA - I.OHKAIN TRANSITION" sandy slates and immature sandstone. Sometimes in alternating layers.

l l. 3OWGANDA FORMATION

polymictic conglomerate in pramatic and peltic matrixes. Overall green l colouration of cold and reduring depositonal environments.

UNCONFORMITY

NTKNSr. BLOCK FAULTING C)} KKGIONAL NATUKK

l

lAG: Archean grenodiorite, trondhjernatie diorite, alkali-granite, granite, monzonite,

l md equivalent gneisses.AB: Archean basalt, andesite, dacite, Rhyolite, alkali basalt with coal and massive

B ;ul[)hidc ininerali?.ation, extensive quartz sericite injections with goldnineralix-ation.


Page-

copper and iron sulphide rninerali?,ation. Often completely oxidized to brick red the granop: yric the rocks on top of the sills ere indicative of the presence of thick sills below. Many 1 ipographic highs are sills which have a preferential resistance to weathering end errosio relative to some of the immature sandstones overwhich they lie.

rim KFolding A few fold', have been observed in the area mapped. Some tight folds in theGordor Lake Formation were observed adjacent to faults (suggesting draging along thefault). While some gentle open folds were observed in upper members of the LorraineForma' on.

Faultir ;: A swarm of long Northwest trending faults cut through the area. These faults are par of the Wanapitei fault system, which is a group of deep seated faults that start in the Sin :nuy area and trend in a north northwesterly direction. Cross faulting (East-West) is aKo ^resent in the map area but are generally not found in the Archean Basement rocks. These two faulting systems working together would produce B horst and graben topogr. phy that is proposed to have a strong influence on controlling the deposition of the Lorraii ?, Gordon Lake and Har River Formations.

It is B!, j proposed that the North Northwest trending faults, because of their deep seated nature ivould have also acted as conduits for the irnplacement of the feeder dykes of the Nippisi ig Diabase. Assuming this to be true then the graben type faulting would have been a live through out the depositional period of the Upper Cobalt Group.

The wr ters further suggests that the faults bounding the Huronian depositional basin thathas l ' en studied also controlled the deposition, recoiling arid redepositionaloharac eristics of the conglomerates arid quartzites in the basin. In this respect, theconglo leifite of the Huronian are different from the conglomerates of Witwatersrand ofSouth . frica,

GOLD AINKKA1.1/.AT1ON

All thi gold bearing samples (over 300 ppb) invariably showed desirninated pyrite and/or soft h matite in the matrix of conglomerate even though the distribution of these miner* s is patchy. Therefore lithogeochemistry was restricted to conglomerates withsome ematite in the metrix irrespective of the softness or hardness of the reddish colouri j Unit-6(b) of Lower Lorrain Formation.


Pa q f 6

SAMl'L NC5 AND GOLD VALUES

The roi ^ were blasted by dynamite and fresh samples with sizes in the 10-12 Ibs. range were ci Ileeted. The entire sample was crushed to 1/8" size and reduced systematically to 250 gm . The 250 gram sample was pulverized to minus 120 mesh and again reduced to 20 grus, al equals for fire assay. The bead produced was then analysed by Atomic Absorption spectoi etry at Ik'11- White Laboratories, Haileybury, Ontario. Altogether 185 samples were c* Ileeted (sample locations on accompanying map) and analysed. The gold contents of thcs samples are presented in Appendix l and a graphical representation can bc viewed in F i go e p.. It is apparent that almost 10**. of the rocks contain more than 12 ppb. gold which i 4 times the background of other praterozoic conglomerates. Figure 2 also shows that 5 'j o f the sampled rocks are above the threshold of 15 ppb. gold content suggesting the pri ience of auriferous /ones in the Lower Lorrain Unit-6(b) conglomerates. The s?i m pi c which show more than 15 ppb. Au. are indicated on the accompanying map. It is interes- ing to note that some rocks of the Upper Lorrain Formation conglomerates (see accoiri; anying map) also show ubove background gold values.

A thrc' inch quart/ vein cutting the rocks of the Upper Lorraine Formation was found in the are .s studied. This vein with a minor amount of disseminated pyrite (Figures 3 and 4) has ret irned values of 0.08 ounces of gold per ton. The adjacent wall rocks lo the vein have tx in extensively silicified.

m )N: DISCUSSION OF SAMPLING KKSUJ/TS

The sai ipling as described above did not discriminate between quartz clasts, pebbles and matric s which include heavy minerals. However, the results, indicated in appendix l, suggest that the gold mineralization would be found in the matrix of the pebble congloi crates, possibly in fine soft hematite, or contained within the pyrite.

If one 'onsiders R09i. pebble clasts and 20 CX. sand and matrix cement then the absolute values roul d have been diluted at least 4 times. Therefore the present lithogeochemistry only co .firm the presence of anomalous quantities of gold in the Lorrain Formation Unit- 6(b). I also shows that some degree of remobili/ation of Lower Lorrain placer gold took place f )ssibly though later hydotherrnal fluids which deposited quartz veins containing gold. lorne degree of reworking of Lower Lorrain Formation also contributed to the locali/i tion of richer gold placer occurrence in the Upper Lorrain Formation.

11

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HURONIAN JOINT VENTURE

HISTOGRAM OF GEOCHEMICAL VALUES OF LORRAIN

FORMATION

QUARTZ PEBBLE CONGLOMERATES

rift 9


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GEOLOGICAL SKETCH MAPShowing locotlon of Gold Btoring Ouortz V*in* cutting

L on CM r ForrriOtion Sldiominti.

r 16.3


O OR

0-003 M X l on-

Spongy quorti viln with pyrltt 2 -ft 0Xo

\ ? cXv.-. pyrilt tiering illicitlection ton* tlong e

of thiC'ting. Tht ihtor it ol on onglt *ith 1h* tlrlki

of IKi btdt vhict-i li upptr lo mlddl* L or re l ri

15 ptttli tiorlng loytri.


SCHEMATIC DIAGRAMSnowing gtntrol gtology of V*ln Hotttd Gold

Mirifollio(Ion In Lorroln Formotion S*diornmti 01

Indlcoltd In fl|. l .

FIG.4


Page 7

NF.AK ! UKFACF MiAOHING:Soft he natite (-t pyrite) in the matrix of quart? pebble conglomerates apparently contains gold. jroundwater movement through the porous rocks will cause some supergene movem ut and redeposition in unexposed structural traps down the palaeoslope. Therefi re rock sampling on the surface alone is not adequate for the evaluation of the gold i *; ential in the Lorrain rocks. Subsurface exploration is recommended mostly in the upper [ )rtion of the Lower Lorrain Formation and in the areas where remobili/ation of gold h?i occurred and deposited in the Upper Lorrain Formation.


Pci q e- 8

KF.COf MKNDATJON

'he following vertical H. Q. Diamond Drill holes fire recommended.

F'.xpected overburden 15' maximum.)

Location

i) Ogilvie Twp. DD11-1ii) Ogilvie Twp. DDH-2iii) Stull Twp. DDH-3iv) Stull Twp. DDH- 4v) Valin Twp. 1)1)11-5

500' 700' 500' 700' 500'

2,900'

Priority 1

viii)

ix)

Browning Twp. DD1I-G 500' ) Contingent upon results of DDH-1 + 2 )

Browning Twp. DD11-7 700' ) Contingent upon results of 1)1)11-4*5 )

Stull Twp. DDDll-S 700' ) Contingent upon results of 1)1)11-4*5+3 )

Shallow drill holes 20'-50' in a )grid (spacing will bc determined) )contingent upon the results of )Priority l drilling results that )may suggest surface leaching and )redeposition by ground water of )hematite hosted gold in the )matrices of conglomerate )

U-sf.mpling of Dr. Colvine1 ? boulder to check the O.G.S. results with those of Bell- Miite Laboratory, Haileybury, and some ore microscopy work to determine the elationship between gold with hematite and other heavy minerals in the 'onglomerate matrix is warranted.

Priority 11

1,900'

Priority 111

2,000'

P. K. Sarkar B. H. Wilson May l, 1984

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SAMPLLfS i OF Rock (79)

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Cros .bedding structure of Unit 14 Stull Township west of Wanapitite Rive and the Wanapitet - Neault Lake graben.

rau led Unit 12 rocks on a ledge close to the Warapiter River fault close to t le Wiinapitc - Neault Lake graben close to Valin Township.

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Alrnos liori?onta! Unit 13 rocks overlying Nipissing diabase site on Wcinaj ile River in Un^itk T ownship close to the boundary with Stull Township.

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^^^^; i;'rS^-^;^;:?^:^S^^?^^^pi.- :^;-/.' •^; u:^v.;V;v^^?- i ^^"^-*^;v-i:?.^ ', ;:''--:- : . '••:.-.-?'v;i^;^'

Ho i?ontal Dnit 10 rocks, of Gordon lake Formation on the south site of .ciisk lake, close to the Burwash Lake - Rosie Creek graben.

Typical fault graben essayment showing Cordon Lake Formation roc ks .

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rent lithotypc-s of Dnit 10 (Lower Gordon Lake Formation) cteci from different localities only rocks in the forepoint.

Mas .ive thicker Unit 11 (a). North shore of Welcome Lake on the eas of Welcome lake Fault.


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Nose r cist

,f a pluiiqiiuj anticline in Unit 11 of Cordon Lake Formation Bur wash fake - Rosie Creek graben on Welcome L.ake.

A sr all domal structure in Unit 11, east of Welcome Lake Paul on the north shore.


Low angle almost stint-ship fault in Unit 11 rock. North shore of Welcome Lake.

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^,f^^^^W4J.Y'^^^r ^ v v .v y -:. -.f- ; -; ' ''••^'^••,^:^'M - - : V^^*'"'^^.;'-'--' /- ;.;.'V;i W /r-- v;..-'.-^ "K'Af*; -v;.t ^^^r^;.-^

k rv''' -^ Sfe ^ ::!i^^S^Mb.,::. y ,. -'•il^'iilii

st hori?ontal pt for local

bumps of domes) mature of Cordon

.'V r ft"3l l a k e F o r n i a t i o n . jrth shore of

l come Lake.


Lower Lorrain Formation Unit 6{c.) Detrital mica fleks bearing conglomerate1 boulder, l mile due south of Chrysler lake.

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Wli'^Q^'&t*-- ; v'"'; ;'^'^f;ft^•tn *^.'^m^.^^^^^\t.^Mi*^^:l:'^{''""•'t'v v- ::J'^^M^;j^M^3-'^^~

UpF Not beic Arc

;r lorrain Formation, Unit 7. Collected from different locations, mega cross-bedding feature on one sample. Overall pink or

sh colouration may be due to similar coloured granite sources in ,ean platform around the Huronian basin.


Sh aring in Unit 8 rock on Fire Tower Hill. Note the steeply dippingcoi glomerate beeiring part on the left and shallow dipping rock on therk it of the shear.

Sh rnp structure in Unit 13 rocks.


,:^'4?'^':":^^î:*- f '-ff' " ',T;.V -''.'7 5*^!.-^**.^

iiPfiSilit lOtype'S in Unit 9 collected from different places. Note differentsh des of red colouration. In one outcrop all the shades may be present

Jf^l'Pîf^•/v fes*.*y*i, -i. 14". '.XStew f•^mmv&^M! - - '' - , : " - '.' ' - ' '- V '' E'-," i- l '*." -, '.-- ' S *-;!i'.'--1 . ,* '.--'V ^-"j - ' "'"Vj-1 * . -.' •,'r.", 1 -'-., ' ' .,-\":'t-'^y*1 ", "' ••.;-^-"-.'.'-.: .v:feV^'-J-"^ î/v^::::";^;^^^'--^"1 ^ j :-.;^ "- ^^y^t;^;^j-.';/!.';;''----.-; jftV'iii. ::..-".*!i:'ikîwiSftA: .-?-.**ii'.5i 1ii;t^,^()^l^^*fe^?J•*^'S^•Vl*Hg'Ji^:Ja..vi,^&^î.aSltvi

Ai outcrop of Unit 9 showing the massive nature and patchy pink cc duration. North of Welcome Lake on the west of Welcome Lake. F, jit at Valin Township near Stull Township boundary.


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^y:^;^^'^;;^SIii^- . . .. . ., . , i t i - , -. ^ .r, f-f.t--.r-ft i -i l r- a f ri r l sif ^ r~* ntir-i Ir* 4 r\ i K o ni sjasper pebbles tire concentrated at an angle to the main bedding

x- suggesting on lap, offlap desposition of pebbles in large river bed, t 8(bMlppfr Lorrain Formation, Fire Tower, Fire Tower Hill, Ogilvie ins hi p.

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U{: )cr lorrain Formation, Unit 8. Collected from different locations {only tht samples in the foreground). Course grained almost unimodel quartz sai d are to be noted. Quartz grains are surrounded. Occasional jasper sai ds are visible.


l )|.c-r Lorrain rormation, Unit(^b) Shows steep bedding and general i crease of pebbles towards the bottom of a conglomerate bed. Note i crease of hematite matrix with more pebble content. Venue: as of |: 'evious photo.

U st o i

per Lorrain Formation, Unit Mb) Shows preferential hematite ining along iron bedding. An angular boulder close to the xrop above.


AlliiOIKNote l grey c

shaped c fieri and quart? pebbles in Unit 6, lower lorrain Formation is coarse grained nature of the rocks with some heavy black and loured minerals.

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Faultec steeply clipping conglomerate beds of Unit 6 rocks.


Mc.nco o red jointed rocks of Unit 15 Nipissing diabase sills. One milenorth )f the road on esker in Unanian Township west of Rosie Creek graben,

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..^ - \, ••**x^*'^-^~^^^'^^^f13^{iiM -. -r -- --'^ i^^^t^tf li. f*'i'V'- 1 .. ,, T- - ;?.:?!ylLr -.- w. * " '

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fe?S^^^ ••*-:-'--v.*-*Av -*\K^- ! -..-^

Ice ri Fire

r ted Unit 6 boulder dumped on glacial lake sand. Southwest of ower hill.

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bv-;-H f-,s/-'i^^-.? ;;::*;^WmpWs^^v ';.fi ;;f^'^^;"i v ' f' /''.'''' ''; 'f'''"' -"'A".^ ' 'vu .! ; :.'^ 1-i I ;'-"-v .-;-i1??3iv'i''"'?f.i;'i|'i

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Lower Lorrain Formation Unit 6(b)Two conglomerate beds separated by a thin discontinuous sandstone of similar clastic composition, /enue: same as previous photo

LoCOf frc Ve

er Lorrain Formation, Unit 6(b). Shows a zone of hematite :entration on the middle right of the angular boulder dislodged i the outcrop. This hematite part contains 1,650 ppb. gold ue: same as above.

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B ulder of lower lorrain Formation, Unit 6(b) shows two distincth matite stained beds of conglomerates. Note spur of white clay inm trix which does not indicate leaching. Venue: same as in previous photo,

H rnatite staining of an angular boulder of Unit 6(a) conglomerate ci se to a t'(a) outcrop. Dufferin Township close to the power line.

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ver lorrain formation. Unit 6(b) Preferential hematite staining09 cross beddings. Red secondary hematite along crossfracluresi w colour stain) Ogilvy Township, l mile southeast of Chrysler Lake.

Lo\ er lorrain Porniation, Unit 6(b) Red clay in crossfactures presumably dui concentration of clay and hematite after leaching from the matrix of he bed during or after diagenesis. Venue: same as above.

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Lowe lorrain Formation, Unit 6(b). Note hematite- stainings. Valir Township, outcrop on Burwash lake, Rosie Creek graben,

"Two ebble rich conglomerate lenses in Lower Lorrain Formation Unit (b). 1/2 mile south of Chrysler Lake, Ogilvie Township.

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LI w e r Lorrain Formation, Unit 6(b) Red clay bearing matrix cut ac -oss the bedding plane - may be done to differential leaching and c( uentration of hematite and clay in the rnetrix of the sandstone w ich is extremely pebbly. Venue: as in the previous photo.

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Lo er Lorrain Formation, Unit 6(b) Red ochrous wave front water ma king on top of Unit 6{a). Venue: as in the above photo.

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Lower Lorrain Formation Unit 6(a)Small pebble of red chert can be seen in the upper left. Valin Township on Burwash Lake - Rosie Creek graben.

Lower Lorrain Formetion Unit 6{b)Typical lithologies in a 1?0' section.NorthwJJJJams Township, J/2 mile north of Tracy Lake.


lower lorrain Formation, Unit Northwilliams Township.

l mile west of Sydney Lake,

Lower Lorrain Formation Unit 5Sylvester Creek Stull Township


Higf y hematite stained conglomerate boulder (Unit 6(b)) 2 mi PS east of Peggy's Lake. Ogilvie Township.

Prei rential hematite staining in a conglomerate boulder, l mile sout least of Fire Tower, Ogilvie Township.


Archean greenstone (AB) injected by pink alkali granitewith partial bleaching. 2 miles west of Jean L. Browning Township,

Typical lithology of Gowganda Formation as exemplified in this boulder. West Montreal River, Ogilvy Township


General topography, swamps, vegetation and timber harvesting in Unwin Township.

Best transport and local experience. Albert Decker (Leask Township)

LEGEND

Trondhjemitic/granodisritle phase of Nippissingdiabase.Nippissing diabase sills/dykes (gabbroic)

ajwlth pink quartz crystals , very quartz rich. Incompletely oxidized to red colour with remnent

sulphide.

c) hybrid rock four assimilated Huronic sediments. UNCONFORMITY

INTENSE FAULTING 8 GRABEN FORMATION Bar River Formation

Very fine grained orthoquartzite, ojwith hemadlte staining or overall pink colour

ation.

b) with green coloured thin slates. Gordon Lake Formation

Pink, purple, grey, buff, coloured layered impure quartzltes.a)with hematite in matrix, sometimes specularite.

Chert ft Jaspery thinly banded silicious slates.a) banded hematite quartzite.

Pink 3 Green thinly banded silicious slates.

o)wackish with-worm burrows and generallymassive.

Pink, grey and white banded quartzite.a) with some sulphides especially chalcopyrite.

Lorrain FormationPink and white fine grained quartz arenite

distal facies)

Unimodal coarse or medium groined quartz arenite.a) locally polymodal.b) local occurrence of small abraided quartz

pebbles in discontinuous conglomerate form

(reworked from Lower Lorrain Formation)

Pink coloured quartz arenite (not very matured)a) with graded bedding structure and occasional

small quartz pebbles of reworked nature.

Pink stained quartz arenite (angular polymodal quartz grains).

a}with quartz and chirt pebbles.

b)as in 6a but with hematite and pyrite In the matrix.

c) with some detrital mica flakes from pegmatiticsource.

Immature quartz + S% p ink feldspar arenite.a) with rounded quartz pebbles forming conglom

erate.

Arkosic immature pebbly sandstone(5-I5 c^tfeldspar)a) conglomeratic with larger rounded quartz

pebbles.

Immature sandstone of coarse arkose K l50Xofeldspora) conglomerite with rounded quartz pebbles..

Gowganda — Lorrain Transition

Sandy slates and immature sandstone. Sometimesin alternating layers.

Gowganda Format ion

Polymictic conglomerate in pramatic andpeltic matrixes. Overall green colouration of

cold and reduring depositional environments.

UNCONFORMITY INTENSE BLOCK FAULTING O F REGIONAL NATURE

AG A rchean granodiorite, trondhjemite, diorite, alkali-

granite, monzonite, and equivalent gneisses.

Archean basalt, andesite, dacite, s hyalite, rhyolite,

alkali basalt with coal a nd massive sulphide miner alization, extensive quartz sericite injections with gold mineralization.

81 C 190000 m E490000'" E

T

cor\4i x lil o t m w. r d r\

6 lac, i au 'Lake sai

IS

14" k o w.41

- \ \//**/ ,

* Sana, c ovei -esi\l.

SYMBOLS

hem— hematite ~ magnetite

— mineralization mo^2— monzonite

~ pegmatite PY ~ Pyrite

S\ - slate

— quartz O,.V.— quartz vein

- basalt

bx -breccia co*a - conglomerate

db -diabase

- gabbro- granite

- granodiorite

3*"\S~ gneiss

-Sample Number

Showing

Bedding (horizontal)

Bedding ( inclined)

Foliation

Jointing

Sy n c line

OP-D.H.-6

Glacial Straie

Thrust Fault

Formational Boundary

Claim Post

Camp

D. D. H--O Diamond Drill Hole

Note: 2-101 refers to sample numbers PK- 101 in Appendix l of Report.1-502 refers to sample numbers AD -502 In Appendix l of Report .

GOLDEN SHIELD RESOURCES LIMITED


GEOL06

Own.:g.e.m.s.

2000

Date: April, 1984

O

41P06SE0002 53.4388 BROWNING 200

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