The Unnamed (head of Hartman River) is a antimony and 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 (head of Hartman River) MRDS details
Site Name
Primary: Unnamed (head of Hartman River)
Commodity
Primary: Antimony
Primary: Gold
Location
State: Alaska
District: McGrath
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Simple Sb (veins, pods, etc)
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Stibnite
Comments
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Tertiary Mineralization crosscuts Upper Mesozoic sedimentary rocks. Polymetallic mineralization in this region is commonly associated with Tertiary granitic rocks.
Comment (Reference): Primary Reference = Reed and Elliott, 1970
Comment (Workings): Workings / Exploration = Reconnaissance sampling has been completed in this area (Reed and Elliott, 1970).
Comment (Deposit): Model Name = Simple Sb deposits (Cox and Singer, 1986, model 27d)
Comment (Geology): Geologic Description = Reed and Elliott (1970) reported blocks of massive stibnite as much as a foot across in frost-heaved rubble near the top of the ridge and in talus. This float is within a few feet of its source, which is probably stibnite-bearing veins localized along faults or shears in Upper Mesozoic argillite and graywacke. In addition to high concentrations of antimony, samples contain as much as 500 ppm lead and 0.45 ppm gold. The mineralized area is near the contact with a Cretaceous or Tertiary granite pluton.
References
Reference (Deposit): Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range: U.S. Geological Survey Open-File Report 70-217, 145 p., 1 sheet, scale 1:250,000. (Also published as U.S. Geological Survey Open-File Report 413).
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-485, 101 p.
Reference (Deposit): Gamble, B.M., Bailey, E. A., and Reed, B. L., 1989, Gold occurrences near Snowcap Mountain, Lime Hills B-2 quadrangle, Alaska: U.S. Geological Survey Open-File Report 89-0646, 8 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Lime Hills quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-412, 1 sheet, scale 1:250,000.
Reference (Deposit): Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska; Supplement to Open-File Report 76-485; Part A, Summaries to January 1, 1981: U.S. Geological Survey Open-File Report 81-1343-A, 25 p.
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