tO^K

NORTHERN GOLD PROJECT

CHEVRON MINERALS LTD.

FARM OUT PACKAGE

OVERVIEW REPORT

by

GODFREY WALTON

April 1985

C h e v r o n M i n e r a l s L t d . has e igh t c l a i m packages a v a i l a b l e fo r j o i n t ven tu re

p a r t i c i p a t i o n in the T r a p p e r and T a t s a m e n i e L a k e s a r e a o f N o r t h w e s t e r n B r i t i s h

C o l u m b i a . The purpose o f th is r e p o r t is to p rov ide the h igh l i gh t s o f e a ch c l a i m b lock

so tha t p o t e n t i a l j o i n t v en tu re pa r tne rs c a n d e c i d e i f f u r t h e r e x a m i n a t i o n of d a t a is

r e q u i r e d . S u m m a r y r epo r t s have been c o m p i l e d f o r e a c h p r o p e r t y .

C h e v r o n has been w o r k i n g on the Tu l sequah mapshee t ( I 04K ) s ince 1981. O u r e x p l o r a ­

t i o n has been o r i e n t a t e d t owa rds go ld m i n e r a l i z a t i o n and a l l o f the c l a i m s c u r r e n t l y

he ld are 1 0 0 % owned by C h e v r o n .

T h e c l a i m b locks be ing o f f e r e d a r e :

O U T L A W - I N L A W

R A M - T U T - T Q T

V E I N

T A R D I S

R O D

B A N D I T - H I J A C K - H I G H L I N E R

G I V E R T A K E R

S H A M R O C K

T h e f i r s t p a ckage is the O U T L A W - I N L A W c l a i m s , w h i c h a re c o m p r i s e d o f t w o c l a i m

b l o c k s . T h e O U T L A W c l a i m b lock is r eady f o r d r i l l i n g . T h e I N L A W b lock requ i res

m o r e t r e n c h i n g p r i o r t o d r i l l i n g .

aSVI7/2

The O U T L A W c l a i m s have a l a rge m u l t i - e l e m e n t ( A u , A g , A s , Sb) g e o c h e m i c a l so i l and

ta lus f i n e a n o m a l y w h i c h has a c e n t r a l 400 ppb A u con tou r (500 m e t e r s in length) s u r ­

rounded by a 200 ppb A u con tou r (750 m e t e r s in l ength ) . Th i s g e o c h e m i c a l a n o m a l y is

suppor ted by anoma lous a r sen i c and a n t i m o n y va lues . A c l a y a l t e r a t i o n z o n e w h i c h is

c h a r a c t e r i z e d by h igh l y anoma lous va lues o f a r s e n i c , a n t i m o n y and b a r i u m in t a lus

f ines and g rab samp les is l o c a t e d ins ide o f the 400 ppb A u c o n t o u r . T h e c l a y z o n e has

an apparent s t r i k e l ength o f 175 - 200 m e t e r s in an E-W d i r e c t i o n w h i c h p a r a l l e l s t he

s lope c o n t o u r .

T h e t a rge t is hos ted by a s i l i c eous (hornfe ls? ) z o n e in p robab l e K i n g S a l m o n F o r m a t i o n

coa r se c l a s t i c s ed imen t s w h i c h have been in t ruded by a J u r a s s i c d i o r i t e . T h e s t o c k l ies

on the sou the rn r i m of a l a rge c i r c u l a r v o l c a n i c c e n t r e o c c u p i e d by T e r t i a r y S l oko a c i d

p y r o c l a s t i c s and s u b v o l c a n i c i n t ru s i v e r o c k s . T h e e n t i r e s y s t e m l ies at t he i n t e r s e c t i o n

of t w o p r o m i n e n t l inear f e a t u r e s r e c o g n i z a b l e on landsat i m a g e r y , s t r i k i n g SW-NE and

SE-NW r e s p e c t i v e l y .

T h e I N L A W c l a i m represen ts a d i f f e r e n t t ype o f t a r g e t . G o l d va lues in showings found

and t r e n c h e d in o u t c r o p a re a s soc i a t ed w i t h a f r a c t u r e s y s t e m o r s t o c k w o r k o f base

m e t a l su lph ide (ga lena , c h a l c o p y r i t e , spha le r i t e ) and p y r i t e m i n e r a l i z a t i o n . T h e

m i n e r a l i z a t i o n obse r ved and s amp l ed in the t r e n c h o c c u r s in a f e l s i c S l o k o dyke w h i c h

has i n t ruded a d a r k e r S tuh in i t u f f . O t h e r v e i n l o ca t i ons r equ i r e s a m p l i n g and

t r e n c h i n g .

T h e R A M - T U T - T O T c l a i m b lock is a p r o p e r t y tha t w i l l be r eady f o r d r i l l i n g a f t e r a

m o d e r a t e amoun t o f l i t h o g e o c h e m i c a l and V L F - E M surveys have been c a r r i e d ou t .

a 9 / l 7 / 3

Th is c l a i m b lock has a l a rge m u l t i - e l e m e n t ( A u , A g , A s , Sb) g e o c h e m i c a l a n o m a l y . The

g e o c h e m i c a l a n o m a l y and p a r t i c u l a r l y i ts ups lope edge a re under l a in by phy l l i t e s w h i c h

in t u r n a re unde r l a i n by a t h i c k sequence o f l i m e s t o n e s . These t w o rock types a re pa r t

o f the P r e - U p p e r T r i a s s i c a s semb lage tha t is known as the S t i k i n e T e r r a n e (Souther ,

C o n e y et a l ) . T h e a n o m a l y is on the f l ank o f a ma jo r a n t i c l i n e tha t o c cu r s in the

S t i k i n e a ssemb lage r o c k s south o f T a t s a m e n i e L a k e .

A l t h o u g h a number o f base m e t a l ve ins have been d i s c o v e r e d , they a r e not b e l i e v e d to

be the sou r ce o f the g e o c h e m i c a l a n o m a l y because t hey a re m o r e w idesp read than the

a n o m a l y and a re s m a l l and d i s con t inuous in o c c u r r e n c e . T h e source o f the a n o m a l y is

i n t e r p r e t e d to be a bu r i ed s t r u c t u r e tha t has l o c a l i z e d some j a spe ro id bodies a long i ts

l e n g t h . The t a rge t is a m a n t o t y p e depos i t near the t op of the l i m e s t o n e (an i m p o r t a n t

host r o c k f o r m i n e r a l i z a t i o n in the d i s t r i c t ) . T h e r e a re t w o o the r s t r u c t u r e s on the

R A M - T U T - T O T c l a i m b lock tha t w a r r a n t f u r t h e r w o r k because o f g e o c h e m i c a l

responses and f a v o u r a b l e a l t e r a t i o n a long t h e m .

T h e V E I N p r o p e r t y is a t an e a r l i e r s t age of e x p l o r a t i o n than e i t he r the O U T L A W or the

R A M - T U T - T O T . Work t o d a t e has o u t l i n e d ve ins w h i c h a re c o m p o s e d o f a r s e n o p y r i t e ,

s t i b n i t e , c h a l c o p y r i t e , g a l e n a , s p h a l e r i t e , t e t r a h e d r i t e and q u a r t z . These ve ins have a

u n i f o r m eas t-wes t o r i e n t a t i o n and o c c u r in a 400 m e t e r w i d e c o r r i d o r ove r a l eng th o f

2 k i l o m e t e r s . T h e ve ins a re t y p i c a l l y 10 c e n t i m e t e r s in w i d t h w i t h go ld va lues f r o m

0.2 t o 0.5 o z / t o n ove r the f u l l w i d t h o f the v e i n . T h e ve ins a re hosted by the d i o r i t e

and the su r round ing s e d i m e n t s .

F u r t h e r w o r k in the f o r m o f t r e n c h i n g is r e q u i r e d to l o c a t e a reas w h i c h m a y have

h igher dens i t y o f ve ins . L a n d s a t i m a g e r y o f the a r e a po in ts t o a l a rge l i neamen t tha t

s t r i k e s sou theas t and i n t e r s e c t s a n o r t h e r l y t r e n d i n g l i n eamen t in the v i c i n i t y o f the

a 9 / l 7 / 4

V E I N c l a i m s . A l a rge c i r c u l a r f e a t u r e is a lso apparent a round the c l a i m b lock

sugges t ing the sma l l ou t c rops of d i o r i t e a re r e l a t e d t o a l a rge i n t r u s i on c e n t r e d on th i s

i n t e r s e c t i o n .

T h e nex t t w o p rope r t i e s a re the T A R D I S and the R O D c l a i m b l o c k s . These c l a i m

b locks a re bo th at a p r e - d r i l l i n g s t a g e .

T h e apparent t a rge t on t he T A R D I S c l a i m s is a z o n e of i n t ense a l t e r a t i o n

( s i l i c i f i c a t i o n , f l u o r i t i z a t i o n ) w h i c h co i n c i de s w i t h a l a rge m u l t i - e l e m e n t g e o c h e m i c a l

a n o m a l y (As , Sb , H g , F ) o ve r 2 k i l o m e t e r s in l e n g t h . Th i s a l t e r a t i o n and g e o c h e m i c a l

a n o m a l y f o l l o w s the K i n g S a l m o n th rus t f a u l t . T h e K i n g S a l m o n th rus t p l aces L o w e r

L a b e r g e group ( Inkl in f o r m a t i o n ) over the U p p e r L a b e r g e g roup (Takwahon i f o r m a t i o n ) .

In one l o c a l i t y whe re t h e r e is a j o g in the th rus t f a u l t , t he g e o c h e m i c a l a n o m a l y

con t inues at t he s ame o r i e n t a t i o n . Th i s d e v i a t i o n a w a y f r o m the th rus t f a u l t c o u l d be

e x p l a i n e d by a late(? ) n o r m a l f a u l t w h i c h has a s o u t h e a s t e r l y s t r i k e sub-pa ra l l e l l i ng the

f r on t o f t he K i n g S a l m o n t h r u s t . T h e co r r e spond ing go ld va lues (up to 70 ppb)

howeve r , a re qu i t e l o w . A proposed mode l w o u l d i n d i c a t e a depos i t a t dep th a long the

th rus t f a u l t w i t h the a l t e r a t i o n and g e o c h e m i c a l response f o r m i n g a ha lo a round the

e c o n o m i c m i n e r a l i z a t i o n . D r i l l i n g wou ld be r equ i r ed t o t e s t th i s m o d e l .

T h e wo rk to da te on the R O D c l a i m s has d i s c o v e r e d f i v e s m a l l t e t r a h e d r i t e ve ins and a

g e o c h e m i c a l a n o m a l y (Au 200 ppb) measu r i ng 400 m e t e r s a long the c o n t o u r . T h e

sou rce o f the g e o c h e m i c a l a n o m a l y m a y be a v e i n s y s t e m . T w o ve ins w e r e d i s c o v e r e d

in the v i c i n i t y o f the g e o c h e m i c a l a n o m a l y and one v e i n is d e f i n i t e l y the sou r ce o f a

ta lus f i n e s a m p l e w h i c h had a va lue o f 10,000 ppb A u . T h e a r ea l e x t e n t o f the

a n o m a l y suggests a l o t m o r e ve ins shou ld be p resen t . F u r t h e r g e o l o g i c a l m a p p i n g and

p r o s p e c t i n g is r equ i r ed t o d e t e r m i n e t he sou rce o f th i s a n o m a l y p r i o r t o t r e n c h i n g .

Q9/ 17/5

Some la rge s ca l e s t r i p p i n g m a y be r equ i r ed to l o ca t e the source of the a n o m a l y .

The B A N D I T p r o p e r t y has r e c e i v e d a lo t of work in a v e r y r e s t r i c t e d a r e a . The best

va lues (> 10,000 ppb Au ) to da te have been ob ta i ned f r o m s i l i c a zones at the

i n t e r s e c t i o n o f f r a c t u r e s . A huge (2fc k m a long the con tou r x I km) go ld g e o c h e m i c a l

a n o m a l y w i t h no a r s e n i c , a n t i m o n y or s i l v e r suppor t o c cu r s on a s t eep ta lus c o v e r e d

s l ope . A l a rge s i l i c a r i c h zone o u t c r o p p i n g at a p o r t i o n o f t he up s lope t e r m i n a t i o n o f

the g e o c h e m i c a l a n o m a l y p rov ided s p o t t y va lues up to 0.2 o z / t o n when t r e n c h e d . Th i s

s i l i c a zone has been t r a c e d over I k i l o m e t e r w h i c h leaves life k i l o m e t e r s of unexp l a ined

g e o c h e m i c a l a n o m a l y (values 400 ppb A u ) .

V e r y l i t t l e wo rk has been c a r r i e d out on e i t h e r the G I V E R T A K E R o r S H A M R O C K

p rope r t i e s and no m i n e r a l i z a t i o n has been l o c a t e d .

T h e G I V E R T A K E R c l a i m adjo ins a po rphy r y coppe r show ing ( F A E ) and has some go ld

and a r s en i c g e o c h e m i c a l anoma l i e s on a s m a l l g r i d and on reg iona l t r a ve r ses ac ross the

p r o p e r t y . A l a rge no r theas t s t r i k i n g l inear is c l e a r l y v i s i b l e on landsat images and is

d e f i n e d as a f a u l t on the g round . A nor th-south s t r u c t u r e is p roposed th rough a l i nea r

v a l l e y and th rough some of the g e o c h e m i c a l a n o m a l i e s . The i n t e r s e c t i o n o f these t w o

s t r u c t u r e s m a y be a good l o c a t i o n f o r go ld m i n e r a l i z a t i o n s i n ce the a r e a shows

cons ide r ab l e q u a r t z c a r b o n a t e a l t e r a t i o n and some p y r i t i z a t i o n in the l i m e s t o n e .

O n the S H A M R O C K c l a i m f i v e r econna i s sance t r a ve r s e s have been c a r r i e d o u t . O n e

z o n e o f s i l i c i f i c a t i o n in a p h y l l i t e host has been l o c a t e d but no anoma lous go ld va lues

we re o b t a i n e d . T h e p rope r t i e s l i e be tween t w o l inears v i s i b l e on the landsat i m a g e r y ,

one a nor th-south s t r i k e and the o the r a nor theas t-sou thwes t s t r i k e . N o o the r work

has been done .

a 9 / l 7 / 6

In s u m m a r y , the re a re e igh t p rope r t i e s a v a i l a b l e f o r f a r m - i n . C o m p i l a t i o n r epo r t s

s u m m a r y i n g the resu l t s o f the work t o da te a re a v a i l a b l e on r eques t . D e t a i l e d maps

and even f i e l d notes c an be made a v a i l a b l e t o those w h i c h a re s e r i ous l y i n t e r e s t e d .

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Geo log i ca l Pound or y ( de f i ned , a p p r o x i m a t e !

B o d d i n g ( i n c l i n e d , v e r t i c a l , hot it onto 11

Faul t ( d e f i n e d , a p p r o i i m c t e )

TNru» t Fau l t ( d e f i n e d , a s s u m e d )

M o t o r d y k e s w a r m

A n t i c l i n e ( a r row i n d i c a t e * p l u n g e !

Sync l lno

Z o n e of h y d r o t n e r m a l alteration, Si l ic i f icat ion ono pyntnafion

Minera l o c c u r r e n c e

Wrneral p rope r t y

*££ Chevron Canada Resources Limited Minerals Stall

BANDIT/HIJACK/HIGHLINER

R E G IONAL I M S G E O L O G Y

F IGURE No 3 PRO JECT No M 504 O A T e ' F E O . i s - B o REVISIONS SCALE | i B 5 0 , 0 0 0 NTS No t 0 4 K FILE No

COMPILED B ' i S W

L A T E T E R T I A R Y [ | p _ ] Laval Mountain Group C R E T A C E O U S and T E R T I A R Y | 9 ] Sloko Group U P P E R J U R A S S I C I e I o i o r i t o J U R A S S I C I"y I LaBortJO Group U P P E R T R I A S S I C [ 6 j Sinwo Fo rmat ion I S I Stutiini Group T R I A S S I C I "4 ' 1 Granodlonte T R I A S S I C a n d E A R L I E R I 3 I Sediments and volconle i P E R M I A N I 2 I L i tnes tano I i " '1 Serpent ln l te

I A ! Dlor i te gneise-. og* unknown

S Y M B O L S

X

5?

Geological bounaary (def inod f cporo<

Godding ( inc l ined, ve r t i ca l , r iori jonioi

Fault (def ined, app rox ima te !

Thruit Faun ( d e f i n e d , e t tumed )

Nto)or dyke unarm

Ant ic l ine (arrow indicates plunge)

Synelln*

Zone of riydrotriormni o i ie ra t ion , tilicif icoflon ona pyr if no t ion

Mineral occufranee

Wmerol oroperty

f1

t3

f j

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GBVER/TAK R E G I O N A L

;ER CLAIMS G E O L O G Y

FIGURE No 3 PtTOJECTNo M 504 D » i | ' F E B . I 9 B 5 REVISIONS SCALE !• 2 5 0 , 0 0 0 NTS No 104 K FILE No

COMPILED B T I O W

^ A T E T E R T I A R Y T ;Q 1 Loval Mountain Group C R E T A C E O U S ond T E R T I A R Y I 9 I S lcko Group

J P P E R J U R A S S I C

j 8 | D lon fc

J U R A S S I C i 7 | _soerge Group J P P E R T R I A S S I C ' 6 J S inwa Fo rma t ion

5 I Sruhini Group T R I A S S I C j 4 | Sronodtocltt

T R I A S S I C and E A R L I E R ; 3 l Sediments ana voicanics 3 E R M I A N [ Z J L imes tone [ 1 J Sorper i t ln l ro

a I Oiar i te gneiss', age unknown

S Y M B O L S

3eoicgicdl Boundary (def ined,approxm

Sodding ( inc l ined , ve r t i c a l , nonzonfo i :

Fault (def ined, dpc ron ima to i

r h ru i t Foult ( de f i ned , assumed)

Mo|or dyke smarm

Ant ic l ine (arrow indicates plunge!

Synctine

Tane of hydrotnermai a l terat ion, si l icif ication ana o y r i t i a f . o n

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SE-3/ e M / R O C K CLafl L B M S

R E G I O N A L G E O L O G Y FIGURE No 3 PROJECT Ma M 504

DATE : FEB. I9U3 REVISIONS SCALE l>200,000 NTS No 104 K FILE Ha

COMPILED B ' l G W