Possibly pink, granitic dykes noted on Thornhill mountain and larger

masses reported on Thornhill and Kleanza mountains belong to the
same group.

A fourth group also younger than the albite-boaring rocks
consists of andesine granodiorite. This rock is commoniy fresh,
light grey, and coarse textured and only rarely is it altered as by
mineralizing solutions. The contacts of the bodies are sharp and
well defined.

A fifth group present in the eastern part of the area
away from the others consists of fresh, uniform, buf to pink,
coarse-grained quartz monzonite.

Other small intrusive bodies include one of hornblendite
and diorite, and another of orthoclase porphyry (syenite) on
Fiddler creek, granodiorite and pink quartz porphyry on Kleanze
creek, diorite and gabbro on Chimdemash creek, and syenite and
diorite on Legate creek. Otherwise the stocks so far as known
are mainly granodiorite.

Intrusive rocks possibly still older than any observed

are indicated by boulders in conglomerates.

ECONOMIC GEOLOGY
Lode Deposits

Mineral occurrences are abundant throughout the eastern
section of the Coast range. The important metals in most of them
are one or more of the following: gold, silver, copper, lead, and
zinc. Some deposits contain molybdenite and tungsten. The deposits
most likely to be of value are mainly copper-gold and gold pyrite.
A number of these are already indicated to have $100,000 to $600 , 000
worth of ore in them and there are many small pockets of high-grade
ore which might be "gophered" out at a profit. Deposits of
immediate prospective value occur, or may be expected to occur,

‘mainly in the area west of the Skeena, south of Lorne, and west of

ne