The Unnamed (near Towers Arm) 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 Towers Arm) MRDS details
Site Name
Primary: Unnamed (near Towers Arm)
Commodity
Primary: Copper
Location
State: Alaska
District: Kupreanof
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
Comments
Comment (Production): Production Notes = None
Comment (Reference): Primary Reference = Grybeck, Karl, and Berg, 1984
Comment (Workings): Workings / Exploration = Numerous diamond drill holes were drilled widely on the claim block in 1978 and 1979 by AMOCO Minerals (including on the Northern Copper prospect , PE005, from a camp located on the southern end of the peninsula between Towers Arm and the North Arm of Duncan Canal. The target of the exploration was massive-sulfide, base-metal deposits and the drilling was specifically directed to airborne geophysical anomalies. Most if not all of the holes were devoid of significant metal values and the geophysical anomalies largely proved to be associated with graphitic layers (oral communication, 1979, AMOCO minerals).
Comment (Deposit): Model Name = Unclear if significant mineralization was ever found.
Comment (Geology): Geologic Description = Numerous diamond drill holes were drilled widely on the claim block in 1978 and 1979 by AMOCO Minerals (including on the Northern Copper prospect, PE005, from a camp located on the southern end of the peninsula between Towers Arm and the North Arm of Duncan Canal. The target of the exploration was massive-sulfide, base-metal deposits and the drilling was specifically directed to airborne geophysical anomalies. Most if not all of the holes were devoid of significant metal values and only chalcopyrite in minor amounts was found. The geophysical anomalies largely proved to be associated with graphitic layers (oral communication, 1979, AMOCO minerals). . Brew and others (1984) mapped most of the area as undifferentiated Mesozoic rocks. However, recent mapping (Sue Karl, USGS, oral communication, 1998) suggests that some of the area probably includes Triassic Hyd Group rocks.
Comment (Exploration): Status = Probably inactive
References
Reference (Deposit): Grybeck, D.J., Berg, H.C., and Karl, S.M., 1984, Map and description of the mineral deposits in the Petersburg and eastern Port Alexander quadrangles: U.S. Geological Survey Open-File Report 84-837, 86 p., 1 sheet, scale 1:250,000.
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