mira

Table of Formations

"Period ae BSS MALT FE ROGAN RNC eT

va

Era ero Group Lithology

‘epoch i ;

Recent |. | a vt i Stream deposits, talus; soil.
| es ee
‘Pleistocene ‘Glacial and fluvioglasial
Cenozoic : : | deposits.

Tertiary or | sec . Stream deposits.

younger
‘Tertiary or | ‘Trachytic and rhyolitic flows,
HUnO'd COLI aku, dykes, and sills.
‘Upper aie ' gyenite.

Jurassic | es, ;
or ‘Omineca "Granodiorite, quartz diorite,
. Lower ' Intrusions : diorite, granite, and gabbro;

Cretaceous | batholiths and related
__stocks, dykes, and sills.

? INTRUSIVE CONTACT
‘Upper — | jAndesitic and basaltic Flows,

esozoic

Triassic (Takla ;- tuffs, breccias, and
and |. group _. | agglomerates; minor argillite

Jurassic == and conglomerate.

H

PERIOD OF EROSION.
nia be TAndesitic and basaltic flows,
i i tuffs, breccias, and
: agglomerates (greenstones);
i ache minor argillite, slate, cher}
Palaeozoic : Permian / Creek : and Limestone.
/ group ‘Ergillite, slate; minor
; : | + greenstone, chert, and
Fa _, + limestone.
‘Massive limestone; minor
i argillite, slate, chert,
| and greenstone: -

Ce

Palaeozoic . -Peridotite and serpentine sills
or - Permian
Mesozoic yh teolaa!
‘younger Altered diorite.

: i i ;

Precambrian’ rie 'Granite-gneiss, pegmatite,

(?) and ' and quartzite.
later ‘Wolverine all
intrusive: i complex ‘Wicaceous, chloritic, and
rocks, - garnetiferous schists;
probably : pera | quartzite, limestone; minor
Mesozoic ! . | granite gneiss and

pegmatite.

: