The Unnamed is a lead and 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
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Unnamed MRDS details
Site Name
Primary: Unnamed
Secondary: Unnamed (head of Rock Creek)
Commodity
Primary: Lead
Primary: Zinc
Secondary: Silver
Location
State: Alaska
District: Chistochina
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Greenstone
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic
Name: Greenstone
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Triassic
Name: Greenstone
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic
Name: Greenstone
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Triassic
Analytical Data
Not available
Materials
Ore: Galena
Ore: Sphalerite
Comments
Comment (Deposit): Model Name = Lode: vein, shear zone
Comment (Geology): Geologic Description = Altered zone about 2 m thick, containing sphalerite and galena, in Triassic Chitistone Limestone near fault contact with Triassic Nikolai Greenstone.
Comment (Reference): Primary Reference = MacKevett, 1976
Comment (Workings): Workings / Exploration = Type of workings: surface. Grab sample (MacKevett, 1976) assayed >5,000 ppm Mn, 15 ppm Ag, 70 ppm Cd, 20 ppm Mo, 3,000 ppm Pb, >10,000 ppm Zn.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): MacKevett, E.M., Jr., Smith, J.G., Jones, D.L., and Winkler, G.R., 1978, Geologic map of the McCarthy C-8 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-1418, scale 1:63,360.
Reference (Deposit): MacKevett, E.M., Jr., Smith, J.G., Jones, D.L., and Winkler, G.R., 1978, Geologic map of the McCarthy C-8 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-1418, 1 sheet, scale 1:63,360.
Reference (Deposit): MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, scale 1:250,000.
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