Work performed by: CCMINCO LTD.€¦ · 0 72 72 89.5 89.5 90.5-90.5 1*3 Description OVERBURDEN...

aa GERMAN

Diamond Drilling

010

Township Report NO 20

Work performed by: CCMINCO LTD.

Claim NO

P 634491

Hole NO

GD-01

GD-02

GD-03

Footage

200m.

200m.

200m.

Date

Feb/85

Feb/85

Feb-Mar/85

Note

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, . __ __ __ __ -*- —— _ __ ——— ——Claim post 3 *JXAAQA

634490 G EROCK PROPERTY

Claim post l.

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Claim post 2

GERMAN TOWNSHIP j STOCK TWP.

SCALE

1/4 mile

Drawn by:Revised by Date

Traced by:. M/M6

Reviled by Date GEROCK PROPERTYDIAMOND DRILLHOLE LOCATIONSSG-1,2,3

ARGA ,Scale: , * e Date: , "85 Plate:

NCI- 112A-CL 210-0610

ST--*Colour Plot A Dip*

ft

-

A

Drill Hole R

Property GERO

or*orH ^r"^^c?wwi u Tcominco

CK . District TIMMINS Hole No. GD-01

Commenced FEB. 16, 1985 Location 106m North of SMO-40 Tests at 101m 188m Hor. Comp. 130m

Completed FEB. 19, 1985 Core Size BQ Corr. Dip -500 - k20 Vert. Comp. 150m

Co-ordinates CLAIM NO. 63^91 True Erg. 180O True 1900 True Logged by R.N. RANDELL

Objective TO FOLLOW UP A GOLD ANOMALY IN BASAL TILLS IN SMO-*9 "/o Recov. Date FEB. 21, 1985

Rcnxasgec metres-com To

0 72

72 89.5

89.5 90.5

-

90.5 1*3

Description

OVERBURDEN

PORCUPINE GROUP SEDIMENTS

Chloritized medium grained felspathic sandstones.

Dark olive green., chlorite-al tered. oxidized, ma^slv** t-o nnnrlv hanrterl l-^2r ovritic medium

grained felspathic sandstones or greywackes. Rocks are sheared, foliated, brecciated, faulted.

Occasional thin beds of finer-grained, equally altered, sheared arqillites and siltstones

demonstrate the sedimentary character of these rocks which physically resemble altered mafic

volcanics. No quartz or quartz-carbonate veins.

Fault zone. Alteration comprises sericite, chlorite and minor talc. Pyrite not abundant.

and is stronqly oxidized.

Greywackes - Facing direction by graded turbidite beds is up the hole - i.e. beds young to

the north. Dip of sediments is 65~70ON at 96m and throughout the hole. Sediments comprise

fine or medium grained greywackes with 2fc interbedded siltstone or argillite. Quartz veins are

all narrower than 1 cm, of bedding parallel character in 20^. and crosscutting, brittle

fracture type in 60& of the veins. Some 20^ are of near-bedding oriented foliation, dio

slip type; these latter contain carbonate and fragments of stronqly sheared sediments.

90.5-95.3 ~ About six cycles of medium qrained greywacke qradinq to thin (2-3cm) argillite.

Each cycle shows minor carbonate as flooding or diagenetic cement in sandstones. Cycles

are 30 cm to 100cm in thickness. A foliation at ^ to core 080O) azimuth is evident in

Sample No.

Length

.

,,

.,-

.

CTv•3- r*"* vD

E "ea

O

O)mr-

O. Q

JS "o O

SLU

E O 0 01

O)c0)

a oJCW

c

O) 0

Analysis

211-9437

•T*Colour Plot A Dip*

p

0

Drill Hole Record ^ommco

Property GEROCK District Hole No. GD-01

Commenced Location Tests at Hor. Comp.

Completed Core Size Corr. Dip Vert. Comp.

Co-ordinates True Brg. Logged by

Objective "/o Recov. Date ' :

3M&&& metres Description

the finer sediments. Thin quartz-Co3~(sericite) veins parallel this foliation

strike, but dip 55 south (93m). A second set of thin (1mm) quartz-Co^ veins strike

130 and dip vertically. A third set of minor tension fractures filled with quartz

lie essentially horizontally. Quartz * carbonate * sheared fragments of foliated

sediments usually less than 5"8 mm thick, constitute a fourth set of veins. These

are directly related to dip slip movements shown by si ickensiding, in the plane of

the azimuth of the borehole, on these vein surfaces. This vein type usually occurs

in fine silty argillites.

95-3-109m - Medium to coarse grained recrystal 1 ized chlorite * minor sericite-al tered

felspathic sandstones flooded by calcite. Some minor disseminated pyrite (less than

Ifc). Medium grained felspathic sandstones occupy 50^ of the interval, and have minor

interbedded silty argillites. A few thin .quartz-carbonate veins of all four sets

mentioned above are present. Veins in the coarse sandstones are "ghost-like". At

98m an oblique or parallel vein suggests the possibility of a fifth, North-South

set not intersected by this N-S oriented drillhole. Bedding parallel, fault dip-slip

veins of less than 8mm occur at 95-3, 98.5, 103.5 m. Some of the thin stratabound

bedding planar, but non-sl.ip, veins have minor skins of pyrite. Sericite is largely

absent from veins and affects none of the sediments except coarse sandstones.

Sample No.

Length

.j*

~-

E ro O

*O)mi-

Q. Q

Js0O

(D LU

-C"5)

J

4M*

o o5

d•z.0)O

Analysis

-

211-9437

* ScM* -

Colour Plot ft Dips

tL

*

Drill Hole R

Property GEROC

'ecord rammipfli mMimnrtj

K - District Hole No. GD-01




Objective Vo Recov. Date

BoMtegac metres-rom To

143 200-

Description

109-143 - Fine to medium grained dark grey greywackes with about 5? interbedded silty arqillites.

A single coarse, recrystal 1 ized, green chloritic sandstone with 2^ disseminated sericite

and less than ] % d isseminated pyrite lies between 132.5m and 135.4m. Basal contacts

of all turbidite cycles are sharp, tops grade into arqi Mites which are terminated sharply

by the coarse base of the next cvcle. The contacts between the subgroups described

(90.5; 95.3 and 109m, 143m) gre qradational. No quartz veins are present other than a few

thin, planar, unfolded quartz carbonate veins 2-4mm wide within the coarse chloritic

recrystal 1 Ized sandstone. These trend 45O and dip at 60-700 south, or at 1300 , with a

vertical dip. Minor sericite selvaqes occur on some veins; no sulphides are present- .

A sharply brecciated north-south quartz-carbonate -i- sphalerite + pyrite vein lies at 111.5m

Greywacke (90S) and argillite (lOfc)

Gradatlonal contact with overlying segment of stratigraphy. Greywacke-arqi 1 1 ite turbidite

piles range from 3cm to 1.5m in thickness. Sandstones are felspathic. qraded and not affected

by chlorite or carbonate alteration. Colours are dark qrey. Tops up the hole to the north f

dips 650N..

Planar, schistose, bedding oriented dip slip surfaces with quartz-carbonate veins less than

lcm thick occur at: 153-1; 155.1; 156.3; 156. 4; 156.6; 157.8: 158.4: 159.6: 160.4: 161.2: 161.3;

164.3; 164.4; 164.5; 164.5; 165.8; 165.9: 188.2: 190.8: 192.4: 193.8: 194 .'l: 194.2: 195.5; 'l97. 5;

197.6; ; 198.5: 198.6; 198.7: 198.8: 199.7. A few thin crosscutting veins (less

Sample No.

Length

,

-.

-

ECOO

O)m t-

Q-Qi. .2 "o O

*

oUJ

fO)

o

J-J cr~c

c*^

—

Analysis

^

-211-9437

C jlour Plot 4 Dips

Drill Hole Record

Property GEROCK

Cominco

District Hole No. GD-01




Objective "/o Recov. Date E jo O

CT

m

o. b

"o O

metres-rom To

Description Sample No.

Length Analysis

than 5mm) of quartz and carbonate occur at 6m intervals - the section is essentially clear

of this style. Some have minor selvages of sericite, but this mineral is only of minor

importance. Alteration . is essentially absent. At 179.5m a 2cm irregular quartz * carbonate

pyrite -*- 5fc sphalerite vein has some sericite microscopic dark grey (Tcarbon) edges.

A similar vein, without sulphides occurs over 176-176. 3™, but lies in a North-South plane.

Other l-2cm veins of quartz-carbonate occur at 157-9m; 163-7; 16?; (176); (179-5); 186.5.

A few 45 -trending, 60 south dipping tension veins in incompetent greywackes are present at

186.5m; 191; and show a comb-structure of quartz-carbonate intergrowths between the walls of

the veins.

Between 191 and 192.5 a north-south vein runs in the plane of the hole azimuth. This

could be a hidden vein set not tested by the drilling.

Between 185 and 197 the argillite units show a change in colour to olive green or khaki,

due to original lithology or alteration - could be sericite alteration, associated with

planar bedding oriented dip slip crush veins.

Foliation fabrics are not clearly evident in this core, due to its dominantly greywacke

character. Carbonate flooding as rhomb i c alteration is essential1y absent except in a

few veins. Sulphides are low in volume. The hole is visually unpromising for gold.

3

96^

Colour Plot S Dip.

t

*

mn

Property GEROCK District EASTERN Hole No. GD-02 Page 1

Commenced FEB. 3. o 1 985 Location Tests at lyom Mor. Comp.

Completed FEB. 23, 1985 Core Size Corr. Dip -500 Vert. Comp.

Co-ordinates True Brg. 1860 Logged by V. GROSL

Objective TO TEST THE AU ANOMALY IN OVERBURDEN HOLE SMO-49 "/o Recov. 99.52 Date FEB: 26, 1985

Fcaxagec meters-rom To

0 6k

6k 87

87 110.2

Description

OVERBURDEN

PORCUPINE GROUP METASEDIMENTS

GREYWACKE - comprised of 0.5 to 3ro wide cycles of grey, fine grained, massive, uphole grading

into siltstone and mudstone. Contact with the previous sedimentary cycle are sharp and

usually irregular (disconformable).

From 6k to 71 m core is broken, fractured and locally vuqqy. Black carbonaceous material at

75m. Rare ripped-off fragment of mudstone present In the coarser portion of greywacke (at 84m).

Coarser variety of greywacke is generally more calcareous (probably primary component of sedimen

Quartz-feldspar veins are frequent in the upper portion of this section, mostly at 20-30 /core

axis but other attitudes are also present.

GREYWACKE - uphole grading into siltstone and mudstone (30&) . The mudstone sections exhibit

soft sediment deformation and occasionally contain a ripped-off clast of black argillaceous

material f rom 95-103m) .

Fractures filled by quartz-carbonate are present, cutting core at various angles but predom

inantly at 20 /CA. Pyrite specks and small blotches are associated with quartz-carbonate

vein lets.

Sample No.

t).

Length

'~

-

E "ea

O

aS

O)

mi-

Q.bL.

S. "o 0

t Ul

*

4s:O)

0)

rO?

(D

COn 9 4V3d •z.(DO

Analysis

211-9437

Setto"1

Colour Plot 4 Dip.

W

Drill Hole Record icominco

Property GEROCK District Hole No. G D-02 Page 2

Commenced Location Tests at Mor. Comp.



Objective "/o Recov. Date

cR9{W©c meters-rom To

110.2 114

114 130

1 30 200

Description

GREYWACKE - pale greenish grey, medium grained, equigranular except near contacts (lower and

upper) where it is fine grained. Both contacts are obscured, by about 5cm wide quartz-carbonate

veins which contain chlorite and sericite. The quartz vein at lower contact contains graphite

flakes. A few thin (mm's) quartz carbonate veins occur within this unit.

GREYWACKE ( 80%)~ S i 1 tstone-Mudstone - fine grained, equigranular, very similar to above,

containing 2 to 3 "i wide si 1 tstone/mudstone beds. Actual contact and gradational fining

of greywacke not clear.

GREYWACKE-Siltstone-mudstone - several, well defined, meters wide cycles of greenish grey wacke,

Whole grading into siltstone and then mudstone. Generally massive, except in a few places

where mudstone exhibits faint bedding at 55O to 60CVcA. Best bedding observed from 151-l65m

and 178 to 178.5m. In this section some layers are boudinaged. Occasional floating argillaceousQ

fragment present. From 197 to 198m bedding is steepening to 45 /CA.

Quartz-carbonate veining is at various angles to CA, but most at 40 /CA. At 155.5m quartz-

carbonate bein about 10cm wide contains chlorite and sericite inclusions. From 160 to l6lm

the rock is weakly altered, pale green with frequent 205cm wide quartz-carbonate veins at 50 /

CA.

Sample No.

Length

*"

*"

E 'w

O

ci mh-

0. Q

is"o O UI

JT O)

0)

j

9•S6

o0

Analysis

211-9437

Se*!**

Colour Plot ft Dips

n

*

Drill Hole FI

Property GEROC

!ecord Tsonmico

K District Hole No. GD-02 Page 3




Objective "/0 Recov. Date

Kxxage meters:rom To

Description

From 175~l80m quartz-carbonate veins parallel to CA contain a few pyrite blotches. Some

fractures in this area are open.

From 188-189 also weakly altered with a few contorted quartz-carbonate veins.

Sulphides occur in minor amount.

200 - END OF HOLE *\\ -L ^ j(xDY

4

Sample No.

Length

~"

-

E "ra

O

D) CDi-

Q. Qk.5. "o O

o ai

.cO)

5

*i •s5COO;Q

Sd•z.to0

Analysis

211-9437

So-.

Colour PtoT A Dip*

0-

*

Drill Hole Record ^Bomnco

Property GEROCK District EASTERN Hole No. GD-03 PAGE 1

Commenced FEB . 2. 4 1 985 ' Location Tests at J 70m Mor. Comp.

Completed MARCH 1 , 1 985 Core Size BQ Corr. Dip ~ 055 * ~ 5Q Vert. Comp.

Co-ordinates True Brg. 1800 , 1870 Logged by V- GROSL

Objective TO TEST THE AU ANOMALY IN OVERBURDEN HOLE SMO-49 o7o RecoV- 99- SZ Date MARCH 1, 1985

500139* meters-rom To

0 70m

70 111.5

111.5 122

122 192.5

Description

OVERBURDEN

PORCUPINE GROUP SEDIMENTS

GREYWACKE-SILTSTONE/MUDSTONE - several cycles of upward grading generally massive, grey sedimen

tary sequence. Occasional float-up fragment. Quartz-carbonate veins 1 to 3 mm wide mostly

25 to 30 to core axis, also very fine sectional fractures semiparallel to core axis. Some

views disrupted and moderately contorted. Pyrite specks, fracture linings and small blotches

occasionally contorted. From 105 to 109 a few places pseudobrecciated with quartz cement. At

108.5 graphite flakes in quartz. Bedding faint at 60 /core axis.

GREYWACKE distinctly pale green (as 110.2-114 in GD-02) equigranular, massive, appears

intrusive, but fragments are locally very distinct, calcareous (primary). Also irregular

pale yellow carbonate veins with minor quartz in a few places. Pyrite specks throughout.

Lower contact marked by 2cm's wide quartz carbonate vein with some chlorite and sericite.

GREYWACKE (70S) SILTSTONE/MUDSTONE -very much as 70-111.5. Uphole gradings, fine grained,

greywacke, coarser fraction, calcareous massive. Bedding in siltstone 60 to core axis.

Minor carbonate veining usually at 30CVcA and Ao'VcA. At 130m core broken, some gange - minor

fault. From 142-151 -5m abundant fine carbonate fractures at kS /CA, but also at other angles.

Locally rock in this section has brecciated aspect due to this carbonate veining. Pyrite

blotches and a few veinlets occasionally present.

From 164- 175 'carbonate veining as above but with pyrite blotches locally.

Sample No.

Length

--

-

E "ra

O

Oo co

O)

mH-

oLTV LTV

1

Q. Q

5"o O

i LLI

o0 CM

.C"S)

3

|:CO

6 1

CD OX

Analysis

211-8437

Se**tft •^**

Colour Plot A Dip*

n

*

Drill Hole Fi

Property GEROCK

©cord icoimnco

District Hole No. GD-03 PAGE 2




Objective 0A Recov. Date

fMftegx meters-rom To

192. 5 196.5

196-5 200

Description

GREYWACKE - pale green, massive fine to medium grained. Carcareous, a few carbonate veins at

*t507CA.

GREYWACKE/SILTSTONE -fine grained, grey, massive, calcareous. Faint bedding at 70OXCA.

Floating fragments at 199"t-

200m - END OF HOLE Q/y\ 4- S^vJv^^

Sample No.

Length

'~

'

E "55

O

d) mF-

Q.bL. 20O

(D UJ

SO)

2

®!(D *

co p

K®fo

Analysis

Work performed by: CCMINCO LTD.€¦ · 0 72 72 89.5 89.5 90.5-90.5 1*3 Description OVERBURDEN...

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Transcript of Work performed by: CCMINCO LTD.€¦ · 0 72 72 89.5 89.5 90.5-90.5 1*3 Description OVERBURDEN...