The Craig 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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Craig MRDS details
Site Name
Primary: Craig
Commodity
Primary: Copper
Location
State: Alaska
District: Petersburg
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: Sulfide disseminations in metasedimentary rocks.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Magnetite
Ore: Pyrite
Ore: Pyrrhotite
Comments
Comment (Geology): Age = Mesozoic or Paleozoic
Comment (Geology): Geologic Description = The country rocks in the general area of the Craig occurrence are Mesozoic or Paleozoic metasedimentary rocks, locally including marble, and subordinate metavolcanic rocks (Elliott and Koch, 1981; Koch, 1996). ? the deposit (Elliott and Koch, 1981, loc. 10) consists of chalcopyrite, pyrite, and pyrrhotite disseminated in the metasedimentary rocks; the chalcopyrite also occurs in thin veinlets. Skarn float at or near the prospect contains magnetite and minor chalcopyrite.
Comment (Reference): Primary Reference = Elliott and Koch, 1981
Comment (Workings): Workings / Exploration = Koch (1997, p. 24-26) reports anomalous values of Ag, Au, Cu, and Zn in a few rock and stream-sediment samples collected by the U.S.Geological Survey in the late 1970's in the area near the Craig occurrence.
Comment (Deposit): Other Comments = Sixty claims were recorded in 1977 (U.S. Bureau of Mines, 1979), but were not active in 1981 (Elliott and Koch, 1981, loc. 10). ?
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Koch, R.D., 1997, Metalliferous mineral resource potential in the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 97-271, 57 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Koch, R.D., 1996, Reconnaissance geologic map of the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-A, 35 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Elliott, R.L., and Koch, R.D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360.
Reference (Deposit): U.S. Bureau of Mines, 1979, Claim map 118: Mines and prospects of the Bradfield Canal quadrangle, Alaska: U.S. Bureau of Mines Open-File Report 20-73, 1 sheet, scale 1:250,000.
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