~-101-

therefore, that this deposit occupies a fraeture zone of the
common type on the mountain and that it pinches out to the
west and cast and at depth.

Where this zone cuts the limestone on the crest of the
spur the vein widens to 10 feet and shows an intermixture of the
two types. The relationships show that deposition of different
minerals took place at different times and that the solutions
followed different routes; hence, different types of deposits
were formed in different places. At this locality the high-
temperature pyrrhotite-sphalerite deposit is cut by the low-
temperature galena-silver type. Evidence of rock movement
during and subsequent to the mineralizing processes also occurs.

In the granodiorite nearby, the shear zones are slightly

mineralized with arsenopyrite, sphalerite and chalcopyrite.

iL
Silver Lake,— White Heather Section. At an elevation of 6,200

rn

lyones, ReH.Be: Geol. Surv. Canada, Sum. Rept .1925,ps41, Ann.Rept.
Minister of Mines, B.C., 1916, p. 124.

-_

fect on the same spur as the Silver Creek deposits a number of

irregular and tiny fractures or shear zones occur in massive,

see

red volcanics. They are mineralized to a maximum width of 1 foot
with massive bornite and tetrahedrite and in places native silver.
A few tons of hand-picked ore shipped averaged: gold, 0.45 ounce,

silver, 120.1 ounces & ton; and copper, 47.8 per cent. In 1954

the remaining showings were very small and irregular. Comparatively

steep slopes on either side of the main workings showed only

ae he See ih

similar small zones that did not offer encouragement for improvement

ree

at depth.

2
Silver Lake and Trade Dollar .— Farther south on the same group
Siiver vax:

Geen) eee ea eS ee ee
z Ann. Repts. Minister of Mines, B.C.: 1933, p- 97; 1931, pe 7353
1929, p.- 165; 1928, PD. 164; map, etc.