Eee

Dowm the slope on oither side of the mountain the
mineralized zone dies away and on the mountain top the best show-
ings are on the highest parts. These features suggest that only
the roots of the deposit have been preserved from erosion.

k On the cast slope of the mountain, 300 to 400 feet
below the top, in a light grey part of the granite-diorite body,
there is a small quartz-sulphide lens like the showings on the
mountain top except that scheelite and barite occur .ith the
quartz, albite, pyrite, galena, sphalerite, chalcopyrite, pyrite,
and free gold. Some specimens containing much scheelite have

been secured.

A and B, Beaver, Lucky Seven. In the area occupied by these

£ Marshall, J.R.: Geol. Surv., Canada, Sum. Rept. 1926, pt.A,
pe 40. Ann. Rept., Minister of Mines, B.C., 1928, p75.

claims and on much of the nearby western slope of Thornhill
mountain the small inclusions and roof pendants in the albite-rich
intrusives are highly altered to dark green and, more rarely,
light grey material. A shear zone followed by a ercek extends
north 55 degrees east up the mountain and dips from 45 degrees
northwest to vertical. In most places the shear zone shows some
evidence of having been slightly mineralized and it is said also
to carry small lenses of quartz and sulphides.

There are many mineral showings on the hillslope. The i
deposits have a very varied content, but most are quartz veins
with chalcopyrite, galena, sphalerite, and pyrite, and some carry ak
free gold and some hematite. Practically all the showings
observed by the writer are in or near small masses of dense green
rocks. In places where it extends from the volcanic rocks into
the albite-rich intrusives the mineralized zone may be clearly

seen to dwindle and cease. The deposits locally aro small lenses,