The Sheep Creek-South is a zinc 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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Sheep Creek-South MRDS details
Site Name
Primary: Sheep Creek-South
Commodity
Primary: Zinc
Secondary: Lead
Secondary: Iron
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: Polymetallic veins
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: None recognized.
Rocks
Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Pyrrhotite
Ore: Sphalerite
Gangue: Quartz
Comments
Comment (Deposit): Model Name = Polymetallic veins (Cox and Singer, 1986; model 22c).
Comment (Geology): Geologic Description = At the Sheep Creek occurrence, sphalerite occurs in small lenses along shear zones in dikes near the north side of a small stock that cuts limestone and siltstone of the mid-Silurian Terra Cotta Mountains Sandstone, a formation within the Dillinger subterrane (Bundtzen, Harris, and Gilbert, 1997). According to Reed and Elliott (1968, C 596), selected grab samples contain up to 5.00 percent zinc.
Comment (Reference): Primary Reference = Reed and Elliott, 1968 (C 596)
Comment (Workings): Workings / Exploration = Only surface sampling data is available from the occurrence. According to Reed and Elliott (1968, C 596), selected grab samples contain up to 5.00 percent zinc.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Bundtzen, T.K., Kline, J.T., and Clough, J.G., 1982, Preliminary geologic map of the McGrath B-2 quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Open-File report 149, 22 pages, one sheet, scale 1:63,360.
Reference (Deposit): Reed, B.L. and Elliott, R.L., 1968, Geochemical anomalies and metalliferous deposits between Windy Fork and Post River, southern Alaska: U.S. Geological Survey Circular 596, 22 pages.
Reference (Deposit): Bundtzen, T.K., Harris, E.E., and Gilbert, W.G., 1997, Geologic Map of the eastern McGrath quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 97-14, 34 pages, one sheet, scale 1:125,000.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the McGrath quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-379, 1 sheet, 1:250,000 scale.
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.
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