24

PROPERTIES NEAR TERRACE AND AMSBURY
Autumn Group

References: Annual Reports of the Minister of Mines, B.C.: 1916, p. 97; 1922, p. 47;
1927, p. 62; 1929, p. 76. Geol. Surv., Canada, Sum. Rept. 1925, pt. A, p. 118.

The Autumn prospect is situated 1,000 feet northwest of the Canadian
National Railways track, about 3 miles west of Amsbury flag station.
Amsbury is approximately 8 miles west from Terrace.

Near the showings the rocks are crystalline limestone, argillite, andesite,
and schist, intruded by sill-like bodies of granodiorite. The beds strike
north 50 degrees east and dip steeply. One sill of granodiorite, about
50 feet wide, is exposed about 200 feet southwest of the workings.

At an elevation of 375 feet a quartz-epidote replacement zone ranging
from 8 to 6 feet in width lies in altered limestone and silicified schist. The
silicified zone follows a fault, strikes north 50 degrees east, and dips steeply
to the southeast. It is sparsely mineralized with pyrite and chalcopyrite.
Three pits have been sunk on the zone over a distance of 250 feet. In the
most northerly (No. 1 pit), small lenses of solid sulphide occur, one of
which is 2 feet long and 4 inches wide. Pyrite is the only sulphide and is
scarce in the second and third pits 20 and 250 feet to the southeast.

An adit 130 feet long was driven north 30 degrees west into the hillside
to intersect the deposit from a point 20 feet below No. 2 pit. Seventy
feet from the portal the adit cuts 6 feet of silicified and epidotized rock
with no sulphides lying on the south side of the fault. A drift runs south
along the deposit for 35 feet and north for 24 feet. A channel sample 4
feet long was taken across the face of the south drift and it assayed only a
trace of silver and no gold.

A second adit, 150 feet to the southwest, is 45 feet long and was
driven north 70 degrees west. Thirty-five feet from the portal a silicified,
epidotized zone 3 feet wide was intersected. A channel sample taken
across it on the north wall showed only a trace of silver and no gold. An
assay of a selected specimen from No. 1 pit showed no gold nor silver.

About 800 feet north of the No. 1 pit, continuous beds of crystalline
limestone are exposed in the bed of a small mountain stream. The beds
strike north 55 degrees east and dip 75 degrees northwest. At an elevation
of 300 feet in the stream bed a zone of altered and silicified rock is exposed,
and may be a continuation of the zone described above.

Oakwood Group
Reference: Annual Report of the Minister of Mines, B.C., 1925, p. 68.

The Oakwood claims are a short distance north of the bridge crossing
Skeena river at Terrace. Hdmund Hamer of Terrace did considerable
surface work on the claims about ten years ago, but results were not
encouraging.

Two parallel faults occur in massive granite at an elevation of 525
feet, about 1,000 feet north of the bridge. The faults lie about 3 feet apart,
strike north 20 degrees east, and dip steeply. Both contain narrow, lenti-