il

mineralizing solutions are believed to have been given off during the con-
solidation of the underlying batholithic rocks and to have arisen along
fractures in the folded and faulted volcanic and sedimentary rocks and along
fractures formed in or along the local igneous bodies on their consolidation.
There is a gradual change in the type of deposit found in a direction at
right angles to the main contact zone between the Hazelton group and the
batholithic rocks. High-temperature minerals such as scheelite and
molybdenite were deposited close to their point of origin in the igneous
rocks. Gold-pyrite deposits came next in a slightly cooler zone, followed
by the copper and arsenic zone minerals, and finally the silver, lead, and
zinc minerals were deposited in the zone of lowest temperature. The high-
temperature minerals were deposited in the Coast Range batholith and the
low-temperature minerals were deposited farthest from its edge in the
rocks of the Hazelton group. The gradation from gold through copper
to silver-lead-zine deposits shows no change in relation to individual in-
trusive stocks. It is probable that the metals rose from a source directly
below them and that the horizontal gradation from high- to low-temperature
metals is due to the increasing depth from southwest to northeast of the
source rock, the Coast Range batholith?.

Samples taken by the writer during the 1936 season and assayed by
the Ore Dressing Division, Department of Mines and Resources, indicate
the presence of commercial grades of gold or gold-lead-zine ores on six
properties. These properties are, the Fiddler, Victor, Bermaline, Grotto,
Patmore, and Zona May. Of these the first named probably has a suffi-
cient ore tonnage to warrant erection of a mill and the others may be ex-
pected to furnish varying amounts of a shipping grade of ore. The occur-
rence of commercial grades of gold ore on the Bear, Black Wolf, Lucky
Luke, Columario, Dardanelle, and Globe properties in Terrace area was
previously pointed out (Memoir 205). As there are over a dozen properties
in Terrace area on which shipping grades of gold ore are found, the area is
recommended as one warranting development work and further prospecting.

LODE DEPOSITS

Providence Group (1)?

The Providence group, owned by G. Bissonette of Terrace, is on the
south slope of Kleanza mountain about 10 miles east of Terrace. The
claims are reached by following the tractor road on the north side of
Zymoetz river for 4 miles east from the highway, to where a foot trail leads
half a mile north to the workings.

Several pits expose narrow shear zones traversing silicified limestone at
elevation 1,100 feet. Samples taken here by the writer showed only traces
of gold and silver.

About a quarter mile farther northeast, at elevation 1,250 feet, four
pits have been cut at 50-foot intervals on a band of highly altered and
silicified limestone. The altered and silicified rock ranges from 10 to 30

1 Hanson, George: Zoning of Mineral Deposits in B.C.; Trans. Roy. Soc., Canada, sec. IV,
pp. 119-126 (1927).
2 This number appears on Figure 10 and indicates the approximate location of the property.