PRELIMINARY

GEOCHEMICAL & GEOLOGICAL RECONNAISSANCE

GOES - HERE CLAIMS

MARIE PROPERTY

NTS 103F/9W

53'32" 132'25 'W

Owner: G. Richards Operator: Chevron Standard Limited

Author: D. Arscott

M485 September 1980

CONTENTS

Page

INTRODUCTION

LOCATION AND ACCESS

CLAIMS

GEOGRAPHY

GEOLOGY

GEOCHEMISTRY

CONCLUSION

APPENDIX

COST 'STATEMENT

CERTIFICATE

ANALYTICAL METHOD

SAMPLING CONTROL

ILLUSTRATIONS

Fig. 1: Location

2: Index Map 1:50,000

3: Claims Map 1:50,000

4a: Sample Designations 1:5000

b: Geochemical Analyses

c: Geological Notes

f

INTRODUCTION

The GOES and HERE c la ims w e r e s t aked by G. Richards i n A p r i l 1 9 7 9

a s a p o s s i b l e a d j u n c t t o t h e Marie Lake claims t o t h e eas t and

t h e T R A I L c l a i m t o t h e W e s t . I n February 1980 Chevron Canada Limited

extended i t s o p t i o n on t h e Marie claims t o i n c l u d e t h e GOES and

HERE.

Between t h e 25th and 29th August 1980, a p r e l i m i n a r y r econna i s sance

of t h e c l a i m s w a s c a r r i e d o u t by pe r sonne l of Chevron Standard

Limited t o a s c e r t a i n t h e i r va lue a s p a r t of t h e Marie p r o p e r t y .

There i s no known p r e v i o u s h i s t o r y of t h e immediate v i c i n i t y of

t h e t w o c l a i m s .

Reference i s made t o t h e fo l lowing r e p o r t s on t h e a d j a c e n t p r o p e r t i e s :

G. R ichards , J. C h r i s t i e - Geology & Geochemistry of t h e EMMONS

and TRAILS c l a ims , Jan . 1980

G. Walton, D. A r s c o t t - Geologica l and Geochemical Report ,

Marie Lake P r o p e r t y , Sep t . 1980

LOCATION AND ACCESS

The p r o p e r t y i s 780 km NW of Vancouver, B. C. and 30 km NNW of

Queen C h a r l o t t e C i t y on Graham I s l a n d .

Road access would be e x c e l l e n t (lf hours from Queen C h a r l o t t e C i t y

via MacMillan B loede l Ltd. l ogg ing r o a d s ) e x c e p t f o r washouts a

few k i l o m e t e r s N of Pam Lake (see Fig . 2 ) .

- 2 -

I n t h e case of t h e p r e s e n t work it was economic t o use a B e l l Je t

Ranger from Sandspi t , 5 0 k m t o t h e S W , t o l i f t i n a l igh t -weight

camp.

CLAIMS

The e n t i r e c l a i m group a t t h e p r e s e n t t i m e c o n s i s t s of t h e following:

N a m e N o . of Uni t s Record No. Record Date

Many Years #1 Many Y e a r s # 2 Many Y e a r s # 3 Many Years # 4 Old T r a i l Old Prospec tor D u s t #1 Dust # 2 Goes H e r e Prospector

4 1 2 1 3

20 4 8 8

'9 -6 4

620 650 765 766 618 828

1 7 1 2 1 7 1 3 1 2 9 6 1 2 9 7

?

June 5, 1 9 7 8 J u l y 17, 1 9 7 8 Sep. 8, 1 9 7 8 Sep. 8, 1 9 7 8 June 5, 1 9 7 8 Nov. 7, 1978 Sep. 17, 1 9 7 9 Sep. 17, 1 9 7 9 Apr. 9, 1 9 7 9 Apr. 9, 1 9 7 9 Sept. 3, 1 9 8 0

GEOGRAPHY

The a r e a under ly ing t h e GOES and HERE c la ims i s e s s e n t i a l l y f l a t ,

occupying a c e n t r a l p a r t of t h e Mamin River watershed. Despi te

t h e broad-val ley a s p e c t of t h i s area, overburden coverage i s n o t

gene ra l ly t h i c k . Th i s i s a t t e s t e d t o by r e l a t i v e l y abundant outcrop

i n t h e Mamin River and a main t r i b u t a r y which branches southwester ly

a c r o s s t h e GOES c la ims.

Timber cover i s n o t g e n e r a l l y t h i c k , and t e r r a i n n e g o t i a b i l i t y

i s good.

Other geographical a s p e c t s a r e s i m i l a r t o those elsewhere on t h e

Queen C h a r l o t t e I s l a n d s .

- 3 -

GEOLOGY

A p r e l i m i n a r y p r o s p e c t i n g and g e o l o g i c a l a p p r a i s a l of t h e GOES

and HERE claims i n d i c a t e s t h a t t h e y are most ly , or p o s s i b l y e n t i r e l y ,

u n d e r l a i n by T e r t i a r y Masset Formation v o l c a n i c s . The rock t y p e s

observed w e r e a s fo l lows :

Uni t 1 - F e l s i c v o l c a n i c s , w h i t e t o p a l e green , mainly r h y o l i t e

w i t h b o t h p y r o c l a s t i c and f low-banded t e x t u r e s (undif f e r e n -

t i a t e d on Fig. 4 c ) . They are f r e q u e n t l y , o f t e n h i g h l y ,

p y r i t i z e d .

Uni t 2 - Basal t ic t o a n d e s i t i c v o l c a n i c s , b l u e g reen , o f u n c e r t a i n

t e x t u r e . The age r e l a t i o n t o U n i t 1 i s n o t known. '

Unit 3 - A pyroclastic/agglomeratic u n i t w i t h mixed fragments

o f U n i t s 1 and 2. The l a r g e r f ragments are subrounded

t o subangular , sometime's a t t a i n i n g a few metres i n d i a -

meter ,and s e t i n a t u f f a c e o u s mat r ix .

Unit 4 - Basa l t i c dykes, w i t h n e a r n o r t h e r l y s t r i k e s and s t e e p

w e s t e r l y d i p s .

Unit A - A l t e r e d rocks , s o f t , o f t e n p y r i t i c , o f u n c e r t a i n primary

composi t ion b u t m o s t l i k e l y maf i c vo lcan ic .

GEOCHEMISTRY

The geochemical r e s u l t s w e r e d i s a p p o i n t i n g . N o Au va lue exceeded

20 ppb, and t h e best A s v a l u e s w e r e 60 and 80 ppm. The Hg showed a

l i t t l e m o r e l i f e , b u t s i n c e t h i s w a s i n t h e v i c i n i t y of b a s a l t

dykes it probab ly reflects f a u l t i n g .

- 4 -

The m a r g i n a l l y i n t e r e s t i n g A s v a l u e s mentioned above c a m e from an

a r e a of p y r i t i c t u f f , t u f f - b r e c c i a , and f e l s i c v o l c a n i c s .

Inasmuch a s v i r t u a l l y a l l t h e a n a l y s e s r e p r e s e n t background va lues ,

it i s of s o m e i n t e r e s t t o compare t h e t h r e e wel l -over lapped sets

of samples ( r e p r e s e n t i n g each med ia ) .

Media N o . of Samples Average Analyses ppb Au* PPm A s PPb H 9

Rock 1 2 8.3 t o 10.0 7 u n r e l i a b l e

S o i l 40 2.5 t o 6.3 10 10 7

Stream S i l t 32 0 . 9 t o 2 .4 33 175

*Maximum c a l c u l a t e d f o r "non-de tec tab le" = 5 ppb

Minimum c a l c u l a t e d f o r "non-de tec t ab le" = 0 ppb

The p r o g r e s s i o n f o r A u and A s i s i n t e r e s t i n g , and probably v a l i d

d e s p i t e t h e s m a l l number of samples. I t may be s a f e t o s a y t h a t

t h e r e i s a mi ld i n c r e a s i n g d i l u t i o n of Au v a l u e s and a mi ld enhance-

ment of A s v a l u e s i n t h i s p a r t i c u l a r t e r r a i n d u r i n g secondary d i s p e r s i o n .

I t a l s o s e e m s l i k e l y on t h e b a s i s of t h e s e comparisons, t h a t no

s u i t a b l y s t r o n g bedrock geochemical r e sponse would go undetec ted

i n t h e s o i l s and s i l ts .

CONCLUSIONS

Although t h e geology of t h e c l a i m s , c o n s i s t i n g o f T e r t i a r y v o l c a n i c s

and a h i g h p r o p o r t i o n of f e l s i c p y r o c l a s t i c s , i s f avourab le , t h e

absence of any marked geochemical r e sponse i s n o t encouraging.

- 5 -

Some a t t e n t i o n could be given t o t h e l a r g e gaps p r e s e n t i n t h e

coverage, b u t on t h e whole it can be s a i d t h a t t h i s i s n o t a high

p r i o r i t y a rea .

D . A r s c o t t

COST STATEMENT

GOES - HERE CLAIMS

25th t o 2 9 t h August 1 9 8 0

LABOUR COSTS

N a m e P o s i t i on N o . days

D. A r s c o t t Geologist 1 K. H icks F i e l d A s s i s t a n t 5

4 F i e l d A s s i s t a n t - D. A b e r c r o m b i e

1 0 days

T o t a l L a b o u r C o s t ( $ 7 3 . 2 0 average per person day)

EXPENSES

A i r f a r e s 2 X $174 .96 $ 3 4 9 . 9 2

Analyses 7 2 s o i l s + s i l t s @ $ 1 0 . 9 4 7 8 4 . 8 0

1 2 rocks @ $ 1 2 . 4 0 ( A u , A s , H g ) 1 4 8 . 8 0 ( A u , A s , H g )

Food 8 p e r s o n days @$15.00 ' 1 2 0 . 0 0

T r u c k 4 days @ $ 4 0 . 0 0 1 6 0 . 0 0

F i e ld s u p p l i e s 8 days @$10.00 8 0 . 0 0

H o t e l s 6 7 . 2 0 Helicopter 3 .1 hrs . 1 , 1 5 0 . 0 0

$732 .00

2 , 8 6 0 . 7 2 2 , 8 6 0 . 7 2

$ 3 , 5 9 2 . 7 2

@. - D. ARSCOTT

CERTIFICATE

I, David P h i l i p A r s c o t t a m a P r o f e s s i o n a l Engineer ,

r e g i s t e r e d i n B r i t i s h C o l u m b i a w i t h o f f i c e a d d r e s s a t

901 - 355 Bur ra rd Street, Vancouver, B. C. V6C 2G8.

I have p r a c t i c e d Mine ra l E x p l o r & t i o n almost c o n t i n u o u s l y

s i n c e 1961, and h o l d d e g r e e s i n Mining Eng inee r ing (1963)

and M i n e r a l E x p l o r a t i o n (1966) .

DAVID ARSCOTT, P.Eng.

September 1 9 8 0

Sampling C o n t r o l

Line s t a t i o n s w e r e e s t a b l i s h e d by h i p c h a i n and compass w i t h s l o p e

c o r r e c t i o n s where necessa ry .

These s t a t i o n s w e r e marked w i t h doub le f l a g g i n g of one c o l o u r , and

a d i f f e r e n t co lou red f l a g g i n g w a s used f o r i n t e r - s t a t i o n l i n e s .

The c r e e k traverses w e r e s i m i l a r l y surveyed.

Geochemical Sampling

S o i l and s i l t samples w e r e collected i n h igh w e t s t r e n g t h paper;

bags, u s i n g a p r o s p e c t i n g p i c k o r spoon a s a p p l i c a b l e . S o i l s w e r e

ga the red a t d e p t h s of 1 0 t o 2 5 c m , and mainly from t h e "B" hor izon .

The a n a l y s e s w e r e carried o u t by Vangeochem Lab Ltd. , whose p rocedures

a r e o u t l i n e d on t h e a t t a c h e d s h e e t s .

986-5211 VANGEOCHEM LAB LTD. 1521 PEMBERTON AVE., NORTH VANCOUVER, B.C., CANADA f V7P 2S3

604-B8BUXP;5 Y

To :

From:

Chevron Standard Ltd. Minerals S t a f f 11901 - 355 Burrard St. Vancuver, B.C. V6C 2 G 8

Vangeochem Lab Ltd. 1521 Pemberton Ave, North Vancouver, B.C. V7P 2S3

Subject : Ana ly t i ca l procedure used t o determine Aqua Regia so lub le - Hg vapour i n geochemical samples,

1, Method o f Sample P r e p a r a t i o n s

(a) Geochemical s o i l , s i l t or rock samples were rece ived i n t h e l a b o r a t o r y i n wet -s t rength 4 x 6 K r a f t paper bags o r rock samples sometimes i n 8" x 12" p l a s t i c bags,

(b ) The d r i e d s o i l and s i l t samples were s i f t e d by hands us ing a 8" diameter 80-mesh s t a i n l e s s s t e e l sieve. The p l u s 80-mesh f r a c t i o n w a s r e j e c t e d and the minus 80-mesh f r ac - t i o n w a s t r a n s f e r r e d i n t o a new c o i n envelope f o r a n a l y s i s l a t e r .

(c) The d r i e d rock samples were crushed by us ing a j a w c rusher and pu lve r i zed to 100-mesh or f i n e r by us ing a d i s c m i l l . The pu lve r i zed samples were then p u t i n a new bag f o r l a t e r

* analys is .

2. Method of Diges t ion

( a ) 0.50 gram samples of t h e minus 80- mesh f r a c t i o n w e r e weighed o u t by u s i n g a top-loading balance i n t o t h e t es t tubes,

(b) The samples were d i g e s t e d w i t h aqua-regia i n a h o t w a t e r b a t h f o r an hourr

(c) The samples were shaken and d i l u t e d wi th demineral ized water t o a f i x e d volume s e t t l e d , '

,,. cont,

.YCHEM LAB LTO. I

3, Method of Analys is

(a) An a l i q u o t of t h e d i i e s t e d samples were mixed wi th HzSO4 a c i d , NaCl, 6 hydroxylamine su lpha te-s tannous s u l f a t e as the reductan t .

(b) The vapour o f the mixture w a s then drawn i n t o t h e abso rp t ion ce l l and t h e Hg vapour w a s d e t e c t e d by the Techtron model AA-5 atomic abso rp t ion spectrophotometer,

( c ) The r e s u l t s were r eco rded on a s t r i p c h a r t recorder . concen t r a t ion w e r e c a l c u l a t e d i n p a r t s per b i l ' l i on by corn- pa r ing w i t h a se t of Hg vapour atandards.

The

4. The ana lyses were superv ised or determined by M r . Eddie Tang or Mr, Conway Chun and t h e i r l a b o r a t o r y s t a f f ,

7 ,

Eddie Tang Vangeochem Lab Ltd,

ET: j l

9 86-5211 fANGEOCfiEM LAB LTD. 1521 PEMBERTON AVE., NORTH VANCOUVER, B.C., CANADA 6 0 4 - W m

1 / V7P 2S3

To : Chevron Standard Ltd. Mineral S t a f f #901 - 355 Burrard St. Vancouve, B.C. V6L 2G8

1521 Pemberton Avenue North Vancouver, B.C. V7p 2S3

From: Vangeochem Lab Ltd,

Subjec t : Ana ly t i ca l procedure used t o determine Aqua Regia s o l u b l e go ld i n geochemical samples,

-

1, Method o f Sample P r e p a r a t i o n

(a) Geochemical so i l , s i l t or rock samples w e r e r ece ived i n the l a b r o a t o r y i n wet -s t rength 4 x 6 K r a f t paper bags or rock samples sometimes i n 8" x 12" p l a s t i c bags.

(b) The d r i e d soil and s i l t samples w e r e s i f t e d by hands using a 8" d iameter 80-mesh s t a i n l e s s steel sieve. 80-mesh f r a c t i o n w a s r e j e c t e d and t h e minus 80-mesh f r a c - t i o n w a s t r a n s f e r r e d i n t o a new bag f o r a n a l y s i s later.

The p l u s

( c ) The d r i e d rock samples w e r e crushed by us ing a j a w c rushe r and p u l v e r i z e d t o 100-mesh or f i n e r by us ing a d i s c m i l l , The p u l v e r i z e d samples w e r e then p u t i n a new bag f o r l a t e r a n a l y s i s ,

2. Method of Diges t ion

(a) 5.00 grams of t h e minus 80-mesh sanples w e r e used, were weighed o u t by us ing a top-loading ba lance i n t o beakers ,

Samples

(b) 20 m l o f Aqua Regia (3:l HCl :HN03) w e r e used to d i g e s t the samples ove r a ho t p l a t e vigorously.

( c ) The d i g e s t e d samples w e r e f i l t e r e d and the washed pu lps were d i s c a r d e d and t h e f i l t r a t e w a s reduced t o about 5 m l .

(d) The Au comples ions w e r e e x t r a c t e d ' i n t o d i i s o b u t y l ke tone and t h i o u r e a medium. (Anion exchange l i q u i d s I1Aliquot 336")-

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SPEClALlZlNG IN TRACF FI FMFNT A N A I YSIS

VANGEOCHEM LAB LTD.

-2-

( e l Separa te Funnels were used t o s e p a r a t e the organic l a y e r .

3. Method of De tec t ion

The go ld ana lyses w e r e d e t e c t e d by us ing a Techtron model AA5 Atomic Absorption Spectrophotometer wi th a gold hollow cathode Lamp. The r e s u l t s were r ead o u t on a s t r i p c h a r t recorder . A hydrogen lamp w a s used t o correct any background in t e r f e rences . The go ld va lues i n p a r t s pe r b i l l i o n were c a l c u l a t e d by comparing them w i t h a set of g o l d s tandards.

4. The ana lyses w e r e supe rv i sed or determined by M r . Conway Chun o r M r . Eddie Tang and h i s l a b o r a t o r y s t a f f .

fl VANGEGCHEM LAB LTD.

ET: jl

986-5211

VANGEOCHEM LAB LTD. 1521 PEMBERTON AVE., NORTH VANCOUVER, B.C., CANADA 604-886U?XZ fl V I P zsj *

To:

FROM:

SUBJECT:

Chevron Standard Ltd. Mineral S t a f f #901 - 355 Burrard St . Vancouver, B.C. V6L 2G8 Vangeochem Lab Ltd. 1521 Pemberton Ave. North Vancouver, B.C. V7p 2S3

A n a l y t i c a l p rocedure used t o de t e rmine h o t a c i d s o l u b l e a r s e n i c i n geochemical s i l t , s o i l , lake se 'diments and rock samples.

1. Sample P r e p a r a t i o n

(a) Geochemical s o i l , s i l t , l a k e sed imen t s or rock samples w e r e r e c e i v e d i n t h e l a b o r a t o r y i n w e t - s t r e n g t h 3% x 6% K r a f t paper bags and rock samples i n 4" x 6" K r a f t paper bags.

(b) The w e t samples were d r i e d i n a v e n t i l a t e d oven.

( c ) The d r i e d s o i l and s i l t samples w e r e s i f t e d by hands us ing a 8" d iameter 80-mesh s t a i n l e s s s teel s i eves . The p l u s 80-mesh f rac ; t i o n w a s r e j e c t e d and t h e minus 80-mesh f r a c t i o n w a s t r a n s f e r r e d i n t o a nwq bag f o r a n a l y s i s later.

(d) The d r i e d rock samples w e r e c rushed by u s i n g a j a w c rushe r and p u l v e r i z e d t o 100-mesh or f i n e r b y u s i n g a d i s c m i l l . The pul- v e r i z e d samples w e r e t hen p u t i n a new bag f o r l a t e r ana lys i s .

2. Method of D i g e s t i o n

(a) 0.25 gram o f t h e minus 80-mesh sample w a s used. Samples were weighed out by u s i n g a top - load ing balance.

Samples w e r e h e a t e d i n a sand ba th w i t h concen t r a t ed p e r c h l o r i c a c i d (70 - 72% HCLOL, by weight ) a t a medium h e a t f o r four hours.

(b)

' ( c ) The d i g e s t e d samples w e r e d i l u t e d w i t h deminera l ized water.

c

SPFCIALIZING IN TRACE ELEMENT ANALYSIS -

> ..dGEOCHEM LAB LTD.

- 2 -

. 3. Method of Analys is

(a) Potassium i o d i d e and s tannous c h l o r i d e i n HCL were added to the d i g e s t e d samples:

(b) Zinc metal w a s in t roduced and the a r s e n i c i n s o l u t i o n w a s gassed off as a r sene through a g l a s s w o o l sc rubber plug s a t u r a t e d wi th l e a d acetate and i n t o a s o l u t i o n of s i l v e r d i e thy ld i th ioca rbamate i n chloroform wi th 1-ephedrine, forming a r e d complex wi th t h e s i l v e r d i e thy1 d i t h ioca rb m a t e .

(c) The concen t r a t ion of t he a r s e n i c was determined c o l o r i m e t r i c a l l y by comparing t h e i n t e q s i t y o f t h e color o f t h e r e d complex wi th a set of known s t anda rds prepared i n a s i m i l a r f a sh ion as t h e s amp1 e s .

4. The ana lyses were supe rv i sed or determined b y Mr. Eddie Tang or Mr . Conway Chun and t h e i r l a b o r a t o r y s t a f f .

1 VANGEOCHEM LAB LTD.

.