The Independence 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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Independence MRDS details
Site Name
Primary: Independence
Commodity
Primary: Gold
Secondary: Lead
Location
State: Alaska
District: Fairbanks
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Joint surfaces are iron-stained.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Galena
Ore: Gold
Ore: Pyrite
Comments
Comment (Reference): Primary Reference = Brooks, 1916 (B 642)
Comment (Workings): Workings / Exploration = Workings were badly caved by July 1931 (Hill, 1933).
Comment (Production): Production Notes = Probably has been minor production (Cobb, 1976; OFR 76-633, p. 103; Chapman and Foster, 1969).
Comment (Geology): Geologic Description = Gold is found in an east-west-striking, vertical fracture zone in coarse porphyritic granite that has been cut by quartz veins. The quartz veins are broken by iron-stained joints whose surfaces are mineralized and carry gold (Brooks, 1916; B 642; Brooks, 1918). The mineralized zone has been traced for 900 feet on the surface (Brooks, 1918). The fracture zone becomes barren where it crosses the contact from granite into the schist (Brooks, 1916; B 642). Pyrite, arsenopyrite, and galena are present (Brooks, 1916; B 642).? This deposit has been developed by two tunnels. In the upper tunnel, quartz veinlets are in a zone 8-10 inches wide in porphyritic granite. This zone is vertical and strikes N 70 E (Hill, 1933). About two-thirds of the gold is in sulfide minerals, and assays show 0.19 to 1.84 ounces of gold per ton (Cobb, 1976; OFR 76-633, p. 103).
Comment (Deposit): Model Name = Gold-quartz vein.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Brooks, A.H., 1916, Antimony deposits of Alaska: U.S. Geological Survey Bulletin 649, 67 p.
Reference (Deposit): Brooks, A.H., 1918, Mineral resources of Alaska, 1916: U.S. Geological Survey Bulletin 662, 469 p.
Reference (Deposit): Hill, J.M., 1933, Lode deposits of the Fairbanks District, Alaska: U.S. Geological Survey Bulletin 849-B, p. 29-163.
Reference (Deposit): Chapman, R.M., and Foster, R.L., 1969, Lode mines and prospects in the Fairbanks district, Alaska: U.S. Geological Survey Professional Paper 625-D, 25 p., 1 plate.
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-633, 72 p.
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Livengood quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-819, 241 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Livengood quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-413, 2 sheets, scale 1:250,000.
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