The Wallace is a gold mine located in Alaska.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
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Wallace MRDS details
Site Name
Primary: Wallace
Commodity
Primary: Gold
Secondary: Zinc
Location
State: Alaska
District: Aniak
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Low-sulfide Au-quartz vein
Orebody
Not available
Structure
Not available
Alterations
Alteration Text: Silicification.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Ore: Sphalerite
Ore: Telluride
Gangue: Amphibole
Gangue: Chlorite
Gangue: Limonite
Comments
Comment (Reference): Primary Reference = This record
Comment (Geology): Age = Cretaceous or Tertiary. The gold-bearing quartz veins crosscut a granitic dike that may be mid-Cretaceous in age. The dike intrudes Jurassic volcanic rocks.
Comment (Geology): Geologic Description = In 1945, R. E. Wallace of the U.S. Geological Survey discovered free gold in quartz veins cutting a granitic dike at this location (unpub. field data, 1945). Wallace described the deposit in unpublished notes and memoranda (1945, 1997), although the U.S. Geological Survey announced the discovery in a press release on August 4, 1945. The steeply dipping or vertical granitic dike is about 40 feet wide and trends N 20 E, subparallel to the ridge. Wallace traced it along strike for about 300 feet in this area. A similar dike may occur a few thousand feet to the southwest (RM026). Wallace noted that quartz veinlets were localized in the southeastern half of the dike and that the gold occupied open spaces in the interior of the veinlets. Two samples were assayed; one contained 0.59 ounce of gold per ton and the other 1.3 ounces of gold per ton. Accompanying the gold was a slightly more abundant, soft (hardness of 2 to 3), silver-white mineral having laminar cleavage. This mineral was tentatively identified as a telluride. Limonite and traces of sphalerite, chlorite, and amphibole were also present in the veins. The dike, which may be an apophysis of a nearby mid-Cretaceous pluton, intrudes Jurassic volcanic rocks (Box and others, 1993).
Comment (Workings): Workings / Exploration = Prospecting pit(s) are probably present at this location.
Comment (Deposit): Model Name = Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)
References
Reference (Deposit): Box, S.E, Moll-Stalcup, E.J., Frost, T.P., and Murphy, J.M., 1993, Preliminary geologic map of the Bethel and southern Russian Mission quadrangles, southwestern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2226-A, 20 p., scale 1:250,000.
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