The Columbia Claim, Columbia Red Metals Group is a zinc, lead, copper, and silver 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
Elevation:
Commodity: Zinc, Lead, Copper, Silver
Lat, Long: 61.11, -147.13000
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Columbia Claim, Columbia Red Metals Group MRDS details
Site Name
Primary: Columbia Claim, Columbia Red Metals Group
Commodity
Primary: Zinc
Primary: Lead
Primary: Copper
Primary: Silver
Location
State: Alaska
District: Prince William Sound
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
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
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Galena
Ore: Pyrite
Ore: Sphalerite
Gangue: Quartz
Comments
Comment (Exploration): Status = Inactive
Comment (Reference): Primary Reference = Jansons and others, 1984
Comment (Reserve-Resource): Reserves = Inferred reserves 11,000 tons at 1.57 percent Cu and 50 ppm Ag (Jansons and others, 1984).
Comment (Workings): Workings / Exploration = Open pits, but no production reported. Six chip samples contained 700 ppm to 7 percent copper, 0.33 oz/ton to 8 oz /ton Ag, 0.16 to 0.87 percent Zn, and 240 ppm to 720 ppm Pb. Grab sample contained 0.12 percent Cu, 15.4 ppm Ag, 0.18 percent Zn and 815 ppm Pb. Low mineral development potential (Jansons and others, 1984).
Comment (Production): Production Notes = No production.
Comment (Geology): Geologic Description = Jansons and others (1984) reported four shear zones that range in size from 3 inches to 18 ft wide cutting massive, clast-supported pebble, cobble, and boulder conglomerate and matrix-supported pebbly mudstone and sandstone of the Tertiary Orca Group. Shear zones are traceable for 800 ft along strike. Zones contain sulfide occurrences ranging from 1 inch wide veinlets of chalcopyrite and pyrite to 4 ft wide zones of chalcopyrite. Sulfide deposits are traceable for about 200 ft.? Six chip samples contained 700 ppm to 7 percent copper, 0.33 oz/ton to 8 oz/ton Ag, 0.16 to 0.87 percent Zn, and 240 ppm to 720 ppm Pb. Grab sample contained 0.12 percent Cu, 15.4 ppm Ag, 0.18 percent Zn and 815 ppm Pb (Jansons and others, 1984).
Comment (Geology): Age = Paleocene or younger; mineralized shear zones are in sedimentary rocks of the Early Tertiary Orca Group.
References
Reference (Deposit): Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, Southcentral Alaska: U.S. Bureau of Mines Open-File Report 5-84, 218 p., 2 sheets, scale 1:250,000.
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