-93-

In many cases it is cloar that there is no gradation from one
kind of deposit to another in such a way as to suggest that by
following one variety another might be found, that is, that
zoning Occurs. For instance, pyrrhotite and chalcopyrite (high-
temperature) occur in the Lake Kathlyn coal mine at a point that
must be farther from the core than many of the silver-lead (low-
temperature) deposits. However, there is enough similarity
between the deposits to indicate that they are related.

Only one deposit, the silver-lcad-zinc-gold deposit on
the south side of the gulch, was observed that was considered to
occur in a fracture zone of the common type, such as occur on
the southwest slope. The others are mainly in small. irregular
fractures related to differential movement along the contact and
to other adjustments in the volcanics. The tetradymite-gold
deposits occur in small, irregular shear zones and open places
in the crest of a minor fold. These high-grade tetradymite-gold

!

deposits are a type that at least by “gophering" have yielded a
profit. Im the silver-lead-zinc-gold deposit on the south side
there is shown sufficient continuity, regularity, and grade to
indicate that such deposits if of good ee ehtaas be expected to

yield a profit to small-scale operations.

Glacier Culéh-Tetradymite = (bismuth telluride Big Tez). A car-
. 975 nf
s, Bull. a

= Gold (Ann. Rept., Minister of Mines, B.C.: 1933,
1930, p. 140; 1929, p. 164; B.C. Dept. of Min
Nomi, -9Sa, Die On.

D
c

load of 28 tons of hand-picked ore “gophered" out by a few miners

and shipped in 1933 averaged 3.095 ounces of gold a ton. A second

car-load of 40 tons was shipped in 1934. The ore is said to carry

considerable bismuth, and Lay reports one assay of: 13.2 ounces

of gold, 1.8 ounces of silver a ton; and 5.2 per cent bismuth.
Detailed study led to the following conclusions, briefly

summarized. Very small, irregular, and discontinuous, but in