11

The claims are underlain by gently folded sediments, chiefly sandstone
and argillite. In the vicinity of the prospect workings the sediments strike
about north 75 degrees east and dip 30 to 40 degrees northwest. About
1,200 feet upstream or to the east the strike swings more easterly and the
dip is 25 degrees north. To the south on the south fork of Egan creek the
strike changes to the southeast with an average dip of 30 degrees north.
A 10-foot band of grit conglomerate with overlying coarse sandstone out-
crops on the south shore of Egan creek about 500 feet west of the cabin. A
fine-grained aplite dyke about 1 foot wide cuts the conglomerate and was
the only intrusive seen in the vicinity.

A quartz vein exposed on the south side of the stream opposite the
cabin has been followed by trenching for over 600 feet in a southeasterly
direction along the foot of a hill. Its average width is about 30 inches,
but in places its width is over 5 feet. The vein occurs along a fault striking
north 50 degrees west and dipping 55 degrees northeast. Slickensided
surfaces not only enclose the vein, but in places traverse the vein quartz,
showing that some of the movement occurred during or after vein forma-
tion. The vein quartz is characterized in places by abundant, small,
angular, and partly altered inclusions of brecciated wall-rock. Calcite
crystals, some of which are 2 to 3 inches in diameter, occur in the vein.
The vein is mineralized with chalcopyrite, galena, tetrahedrite, and light
brown sphalerite in varying proportions. On the whole, the sulphides are
rather sparsely distributed in the surface exposures.

During the winter of 1926 a shaft 22 feet deep was sunk on the vein
about 70 feet southeast of Egan creek. The shaft is now water-filled, but
a considerable amount of vein material is on the dump. An average sample
weighing one pound was taken for assay with these results: silver, 0-92
ounce a ton; gold, none; lead, 1-57 per cent; zinc, 4:20 per cent. A 2-foot
channel sample taken across the vein at a point 60 feet west of the shaft
where there was an abundance of calcite with the quartz gangue assayed:
silver, 0-84 ounce a ton; gold, none; lead 1-06 per cent; zinc, 0-40 per cent.
Another channel sample taken 100 feet west of the shaft across 30 inches
of vein, assayed: silver, 0-36 ounce a ton; gold, 0-01 ounce a ton; lead,
0-69 per cent; zine, 0:3 per cent.

Six hundred feet southeast of the junction of the vein with the South
fork of Egan creek, a smaller vein of similar appearance was seen along the
south bank of the South fork. The latter vein is in line with, and strikes
towards, the main vein, so may be its continuation. On the north side of
the stream opposite the smaller vein a pit was sunk years ago on a 31-inch
seam of carbonaceous shale.

Silver Plate and Silver Cup Group
(See Figure 2)

References: Annual Reports of the Minister of Mines, B.C.: 1913, p. 78; 1914, p. 109;
1921, p. 44; 1926, p. 72.

The Silver Plate and Silver Cup claims are situated about 12 miles
north of Kitsumgallum lake. They are on the north side of the telegraph
trail about 3 miles northwest of the Cedar River bridge. A wagon road