Q u a r t z - F e l d s p a r porphyry d i k e s (some dark i n c o l o r )

Greenstone - lamprophyre d i k e s

G r a n o d i o r l t e

LAYERED ROCKS

Structural Block III

f • \-_, • i t r i - f _ Q u a r t z - b e a r i n g l i t h i c and r h y o l l t i c lap!111 & co a r s e t u f f s

Quartz-eye r h y o l l t i c t u f f - - - marker at base of t h r u s t

Dark massive & a m y g d a l o i d a l f l o w s and Interb e d d e d t u f f s (Major T h r u s t F a u l t )

Quartz-Eye

Rhyollte

Tuff Unit

H

A" Structural Block II

D

Structural Block

I (W E S T E RN)

B

Massive graywacke - s l a t e s ( U n c o n f o r m i t y )

N o n d e s c r i p t t u f f - l i t h i c ( q t z - poor)

S • i "

Gray & p u r p l e c r y s t a l t u f f s , l a y e r e d f l o w s , i n t e r b e d d e d l i t h i c l a p i l l i t u f f s

Dark, l o c a l l y a m y g d a l o i d a l , f l o w s — i n t e r b e d d e d t u f f s & massive f l o w s

- f i n e g r a i n e d , d o l o m i t i c , p e l e c y p o d a l

Green bedded l a p i l l i t u f f

| | P u r p l e bedded & massive l a p i l l i -(Major F a u l t Break; s t e e p l y d i p p i n g — west s l o p e of mountain)

Gray f o s s i l i f e r o u s

P u r p l e " p o r p h y r i t i c " c r y s t a l t u f f ( F e l d s p a r p h e n o c r y s t s )

Hematite r e d

70 F a u l t

F a u l t i n t e r p r e t e d o r approximate

25 T h r u s t f a u l t

T h r u s t f a u l t i n t e r p r e t e d or approximate

R e c o g n i z a b l e shear

50 S t r i k e and d i p of l a y e r i n g (a) d i p p i n g (b) v e r t i c a l ( c ) h o r i z o n t a l

S t r i k e and d i p of j o i n t i n g b e l i e v e d t o c o i n c i d e w i t h the l a y e r i n g (a) d i p p i n g (b) v e r t i c a l

C o n t a c t (a) observed (b) approximate

L i m i t of observed o u t c r o p

to Overturned l a y e r i n g

'o A x i s and plunge of o v e r t u r n e d f o l d

S O U T H W E S T P O T A S H C O R P O R A T I O N ( C L I M A X M O L Y B D E N U M ( B . C . ) L T D . )

Note Base map from uncontrolled narrow angle photo mosaic.

B.C. Forest Service, I960 Y O R K E - H A R D Y P R O J E C T - B . C .

G E O L O G I C A L M A P OF T H E H U D S O N B A Y M O U N T A I N A R E A Geology

A , A ' A '', 8 , ( 5 '

Dr. M. A. K lug man

MQ\J a / U S

inches 1 S c a l e : I" = k Mi le = I 3 2 0 '

0 2 3 centimetres

it! 7 f r

This reference scale bar has been added to the original image. II will scale at Ihe same rate as the image, therefore it can be used as a reference for the original size. Toronto — Arranged by R. Berube