28

1-60 ounces to the ton in silver. A picked sample containing grey copper
and pyrite was collected by the writer with the following assay results;
gold, a trace, and silver 13-42 ounces to the ton.

St. Paul and X Claims

References: Annual Reports of the Minister of Mines, B.C.: 1914, p. 114; 1924, p. 49;
1925, p. 70; 1929, p. 78; 1930, p. 78. Geol. Surv., Canada, Sum. Rept.
1925, pt. A, p. 118; 1926, pt. A, p. 41.

The St. Paul and X claims adjoin one another and extend from east
to west across the summit of Thornhill mountain. Their position is
approximately 6 miles due southeast of Terrace. J. A. Michaud and W.
A. Kirkpatrick of Terrace are the owners.

A quartz albite dyke ranging from 10 to 15 feet in width crosses the
claims in an east-west direction and dips about 45 degrees north. The
dyke is very fine-grained and is conspicuous because of its light greenish
grey to yellow coloration. Quartz veins occur for a known distance of
2,200 feet along the south or hanging-wall side of the dyke and for at
least 800 feet along its north side. Vein quartz shows along the south
side of the dyke wherever the foot-wall has been exposed by trenching,
except at its western end. The country rock near the dyke is coarse-
grained, grey granodiorite. A number of lamprophyre dykes occur, all of
them older than the quartz albite dyke.

Starting from the east the dyke may first be seen at an elevation of
4,350 feet on top of a rocky bluff overlooking a small mountain lake. A
quartz vein ranging from 1 to 2 feet in width lies on the foot-wall side of
the dyke. The vein, though greatly weathered, was seen to carry both
pyrite and galena. Both vein and dyke strike south 70 degrees west and
dip 50 degrees northwest for a short distance. One hundred feet west the
dip flattens to 35 degrees and the dyke and vein swing southward following
a course of south 20 degrees west up the side of a steep hill. On the hill-
side both dyke and vein are concealed by a light drift cover, but at an
elevation of 4,625 feet a pit sunk on the dyke again discloses vein quartz
along the foot-wall. Forty feet south of the pit and at a little higher eleva-
tion, an adit was driven for 25 feet towards the foot-wall of the dyke, but
failed by a few feet to reach the objective.

The north side of the dyke may be easily followed for 600 or 700 feet
above the pit in a direction south 50 degrees west. No veins are exposed
and the foot-wall is covered by talus.

On the divide between the Zymoetz and Lakelse slopes of the mountain,
at an elevation of 4,875 feet, there is a quartz vein exposed at intervals for
200 feet along the foot-wall or south side of the dyke. The vein ranges
from 1 to 5 feet in width with an average of 23 feet. A channel sample
taken there across a 3-3-foot vein width on the west wall of a short cross-
cut adit near the St. Paul claim post assayed as follows: gold, 0-02 ounce
a ton; silver, a trace; lead, a trace; and zinc, 0-75 per cent. The quartz
contains about 5 per cent of sulphide comprised of pyrite, chalcopyrite,
galena, and sphalerite in the vicinity of the adit, but 75 feet to the east
where the vein reaches a width of 5 feet it contains almost no sulphides.

———E————e—eeEeEeEeEeEeEeEeE—————a