The Unnamed (near Metlakatla) is a copper 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 Metlakatla) MRDS details
Site Name
Primary: Unnamed (near Metlakatla)
Commodity
Primary: Copper
Location
State: Alaska
District: Ketchikan
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
Alteration Type: L
Alteration Text: Minor oxidation of copper mineral.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Malachite
Ore: Pyrite
Comments
Comment (Geology): Geologic Description = The country rocks in the area of this site are schist, hornfels, and gneiss derived from an assemblage of undivided volcanic, sedimentary, and intrusive rocks of Silurian and Ordovician age (Berg, 1972; Berg and others, 1988). The rocks are polymetamorphic: the latest metamorphism, to greenschist grade, probably occurred in Late Cretaceous time. The occurrence consists of sparsely disseminated pyrite, chalcopyrite, and traces of malachite in schist (Berg, 1972, loc. 24).
Comment (Reference): Primary Reference = Berg, 1972 (I 684)
Comment (Deposit): Model Name = Disseminated lode deposit of undetermined origin.
References
Reference (Deposit): Berg, H.C., 1972, Geologic map of Annette Island, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-684, 8 p., 1 sheet, scale 1:63,360,
Reference (Deposit): Berg, H.C., Elliott, R.L., and Koch, R.D., 1988, Geologic map of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Mineral Investigations Series Map MF-1807,27 p., scale 1:250,000.
Reference (Deposit): Karl, S.M., 1992, Map and table of mineral deposits on Annette Island, Alaska: U.S. Geological Survey Open-File Report 92-690, 57 p., 1 map, scale 1:63,360.
Reference (Deposit): Elliott, R.L., Berg, H.C., and Karl, Susan, 1978, map and table describing metalliferous and selected nonmetalliferous mineral deposits, Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-file Report, 78-73-B,17 p., scale 1:250,000.
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