Nevada Bureau of Mines and Geology - University of Nevada, Reno

metamorphosed beds. The apparent strike of these folds is north-south but
individual folds cannot be traced far due to their small size. There is
likewise very little faulting in the range, being only a few high-angle
faults. There is little evidence that the range owes its present relief to
normal faulting.
ORE DEPOSITS
Even though the district is considered a gold district the production
of silver exceeds that of gold, with a historical ratio of gold to silver
at 1:1.4. Production from the newly discovered "Sleeper" deposit will
increase this ratio even more, it being 1:2.8-gold to silver. Besides gold
and silver the district has also produced minor quantities of copper and
lead. One tungsten occurrence is reported for the district but no
production is credited to it.
As near as can be estimated, 60% to 70% of the production credited to
the district has come from the Jumbo Mine. At this property, rocks
consist of metamorphosed sediments, principally shale, which the writer
0
prefers to call phyllite. This unit dips from 55' to 70 to the east. Gold
alloyed with silver occurs in the free milling state in numerous stringers
in the shale. These stringers are in part filled with vein-forming
feldspar and adularia. One notable feature of this deposit is the small
amount of silicification present. At the time of visitation open-pit
mining was in progress in the area of the older underground workings. This
material was being hauled to the valley floor on the west side of the
range and was being treated by heap-leach methods.
The rest of the gold mines and prospects in the northern part of the
range and extending south as far as the Havalau Mine have the same basic
geologic setting as the Jumbo Mine, namely quartz veins in metasediments.
Mines and prospects south of the Havalau Mine are in quartz veins in
granodiorite. All of these properties, of which there are eight, have
accounted for only 30% to 40% of the production from the district. There
was no current activity at any of these properties.
The single tungsten prospect in the district, called the Scheelite
prospect, is located at the south end of low hills on the east flank of
the range and is about 1.5 miles northwest of Daveytown. Here, a small
body of granodiorite intrudes shale and quartzite and these rocks are cut
by numerous andesite dikes and quartz veins. The property has been
explored by an open pit and some mining of scheelite bearing material is
probable but there is no recorded production.
Johnson states that there is one gold placer in the district. Gold
was recovered from stream gravels along Teepee Creek in 1914. This creek
is not shown on maps of the area and was not visited, but it is thought to
be on the east side of the range, or hills, that were the locale of the
prospecting activity at the time. One ounce of gold has been reported
recovered from this placer.
SELECTED REFERENCES
Couch, B. F., and Carpenter, J. A. (1943) Nevada's metal and mineral
production: NBMG Bull. 38, p. 65-70.
Awakening District - 2