53

barren looking section of the fissured zone. About 250 feet farther west
along the drift a 20-inch channel sample taken across the zone where the
gangue included 30 per cent of sparsely mineralized quartz assayed: gold,
0-055 ounce a ton; silver, 2:55 ounces a ton; copper, 2:60 per cent. For
90 feet from the face at the west end of the drift, the zone traverses dark,
fine-grained, argillaceous sediments. At the face, the zone consists of 4
inches of gouge only sparsely mineralized, but at the contact of the sedi-
ments and the granodiorite and for 70 feet west towards the face the zone
consists of 6 to 15 inches of quartz carrying abundant chalcopyrite and
safflorite, and is stained crimson by oxidation of the safflorite, to cobalt
bloom. A 12-inch channel sample taken across this part of the vein, 15 feet
west of the granodiorite contact, assayed: gold, 0-26 ounce a ton; silver,
2-25 ounces a ton; copper, 11-39 per cent; cobalt, 1-01 per cent; nickel,
0-02 per cent.

About 540 feet west along the drift from the crosscut to the zone, a
crosscut runs 535 feet northwest to a second parallel zone. In an 85-foot
drift to the west from the end of this crosscut this zone consists of from
6 to 20 inches of white quartz sparsely mineralized with pyrite. A 15-inch
channel sample taken across the deposit in the roof of the adit, 35 feet
west of the crosscut, assayed: gold, 0:01 ounce a ton. This zone dips 35
degrees north and, presumably, is represented at the surface by a quartz
vein that outcrops for 50 feet at elevation 4,625 feet, a short distance below
the air raise from the crosscut. Several small seams of solid chalcopyrite
up to 8 inches in width occur in the outcrop. There has been a marked
dislocation along this fissure, as a 50-foot dyke of quartz diorite that forms
the south wall of the fissure at the end of the crosscut does not appear on
the north side of the fissure in the present workings. A drift, which runs
northeast from near the end of the crosscut, follows the fissured zone for
30 feet to where it ends at a body of fine-grained, greenish microdiorite. The
drift continues 100 feet easterly in this rock, but does not pass through it.
The microdiorite is not offset by the fissuring and, therefore, was intruded
after the major fault movement, but as small quartz stringers penetrate the
microdiorite it is evident that some fracturing and mineralization took
place later than the intrusion of the microdiorite.

In a number of places along the drift on the main fissured zone, roughly
horizontal fault striations were seen, indicating that at least the final move-
ments were in a horizontal direction. The 50-foot dyke of quartz diorite
ending against the northern of the two fissure zones is intersected by the
southern fissure 350 feet east from the face of the drift, and exhibits an
apparent horizontal displacement of only 6 feet. Where both sides of the
fissure are bounded by this dyke rock there is no vein gangue.

No. 3 adit is 55 feet vertically above and 110 feet north of No. 2 adit.
The workings consist of a 10-foot crosscut and a 100-foot drift along the
main fissure zone, with midway along the floor a stope 20 feet long and
extending down to the level of No. 2 adit. In No. 3 adit the zone ranges
from 10 to 20 inches in width and carries from 1 to 10 per cent of chal-
copyrite. Near the portal there is a short 4-inch seam of almost solid
sphalerite. Numerous fragments of white quartz containing galena and
tetrahedrite were seen on the dump at the portal. The zone outcrops for