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96

NICKEL.

About 43 miles south of Clinton, one-half mile west of the Ashcroft
road, and 500 feet above it, an outcrop of a calcareous quartz rock carries
the green, nickeliferous silicate, garnierite. The rock is foliated
and the green mineral, which is of later origin than the parent rock, lies
in parallel bands through it. The outcrop is 25 feet by 10 feet in extent
and may be an immense boulder. Two hundred feet south is an outcrop
of quartz. There are a number of boulders along the side hill for one-half
mile north, but no other outcrops have been discovered. An assay made
by H. V. Ellsworth of the Geological Survey, of a sample taken at intervals
across the 25-foot outcrop, yielded 0-11 per cent nickel and 0-17 per cent
chromium oxide, Cr203.

CHAPTER VIII.
GOLD, SILVER, COPPER, LEAD.

In this chapter are described a number of mineral occurrences that
carry values in gold, silver, copper, or lead. _All of these are prospects
as yet and except in two cases, no underground development work has been
done. Deposits of placer gold are not dealt with in this report. The
occurrences include prospects in Fraser canyon; on Timothy mountain:
north of Soda creek; on Willow river; on Hixon and Stone creeks; and on
the North Bend of Fraser river above Prince George (Figures 1 and 2).

FRASER CANYON.

The railway between Pavilion and Kelly lake cuts through many
outcrops of argillites and quartzites of the Cache Creek formation. In
places these have been sheared and the rock near. the shear zones altered
to a soft mass of carbonaceous material accompanied by deposits of brown
and yellow hydrated iron, many crystals of gypsum, and a white powder
consisting mostly of hydrated magnesium sulphate, with some gypsum and
less sodium sulphate. Just east of the tunnel at the 28-5 mileage on the »
railway there is a section exposed showing this alteration for a distance
of 130 feet along the track, portions 30 feet wide by 30 feet high being
extremely altered. At the base of the escarpment north of Elevenmile
creek and east of Fraser river, about 2,300 feet above the railway grade
and 2 miles from it (Figure 2, locality 39), is an occurrence of the same
character in which two or three shear zones traverse argillites and dense
quartzites of the Cache Creek in a direction north 16 degrees west. Two
of the zones are from 10 to 12 feet wide. The material within them is
soft and contain’s much carbon which often shows glistening faces with the
appearance of graphite. The amount of carbonaceous material is greater
along the fractures than when a foot or so from them. The white salts and
yellow iron stain are also in evidence. The altered zones run up the face
of the cliff, but appear to end 20 to 30 feet from the top. Mr. H. Donaghey,
owner of the 11 Mile ranch, sampled a portion of the shear zone material
and had it assayed. The results were 6-8 per cent carbon, $3.20 in gold
per ton, and some silver. The writer sampled across 4 feet of one of the

carbonaceous shear zones and the assay results gave 7-42 per cent of carbon,
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