The Unnamed (near Porcupine Dome) 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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Unnamed (near Porcupine Dome) MRDS details
Site Name
Primary: Unnamed (near Porcupine Dome)
Commodity
Primary: Gold
Secondary: Silver
Secondary: Tin
Location
State: Alaska
District: Circle
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Cassiterite
Ore: Gold
Ore: Silver
Comments
Comment (Workings): Workings / Exploration = Surface sampling only.
Comment (Geology): Geologic Description = Quartz veins that cut metamorphic rocks carry Au, Ag and cassiterite (Cobb, 1976, p. 53, [OFR 76-633]). There are no known granitic rocks in the area. A sample of iron- stained quartzite containing a small quartz vein carrying arsenopyrite(?) had 3.0 ppm Au, 1.0 ppm Ag. Nearby samples are anomalous in tin (W.D. Menzie, USGS 1982-83 field notes; Foster and others, 1984).
Comment (Reference): Primary Reference = Foster and others, 1984.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Mertie, J.B., Jr., 1938, Gold placers of the Fortymile, Eagle, and Circle districts, Alaska: U.S. Geological Survey Bulletin 897-C, p. 133-261.
Reference (Deposit): Foster, H.L., O'Leary, R.M, McDougal, C.M, and Menzie, W.D., 1984, Analyses of rock samples from the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 84-479, 126 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Burand, W. M., 1968, Geochemical investigations of selected areas in the Yukon-Tanana region of Alaska, 1965 and 1966: Alaska Division of Mines and Minerals Geochemical Report 13, 51 p.
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): Menzie, W.D., Foster, H.L., Tripp, R.B., and Yeend, W.E., 1983, Mineral resource assessment of the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-170-B, 61 p., 1 sheet, 1:250,000.
Reference (Deposit): Cobb, E.H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Circle quadrangle, Alaska: U.S. Geological Survey Misc. Field Studies Map MF-391, 1 sheet, scale 1:250,000.
Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.
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