The Occasional Group is a copper, 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
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Occasional Group MRDS details
Site Name
Primary: Occasional Group
Commodity
Primary: Copper
Primary: Lead
Primary: Zinc
Location
State: Alaska
District: Chandalar
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
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Galena
Ore: Sphalerite
Gangue: Quartz
Comments
Comment (Reference): Primary Reference = Grybeck, 1977
Comment (Workings): Workings / Exploration = Twenty-two claims were located by Placid Oil in 1971 and were active until at least 1978; they have since been abandoned.
Comment (Geology): Geologic Description = Galena, sphalerite and chalcopyrite occur in vein and boxwork of veinlets in limestone (Grybeck, 1977) near the unconformable upper contact of the Skajit Limestone with calcareous sandstone member of Hunt Fork Shale and/or Beaucoup Formation (Menzie and others, 1985). No other descriptive information is available.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Menzie, W.D., Reiser, H.N., Brosgi, W.P., and Detterman, R.L., 1985, Map showing distribution of mineral resources (excepting oil and gas) in the Philip Smith Mountains quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Investigations Map MF-879-C, 2 sheets, scale 1:250,000.
Reference (Deposit): Grybeck, D.J., 1977, Known mineral deposits of the Brooks Range, Alaska: US Geological Survey Open-File Report 77-166C, 41 p., 1 sheet, scale 1:1,000,000.
Reference (Deposit): Barker, J.C., 1978, Mineral Investigations of certain lands in the eastern Brooks Range: a summary report: US Bureau of Mines Open-File No. 63-78
Reference (Deposit): Maas, K.M., 1987, Availability of land for Mineral exploration and development in northern Alaska, 1986: U.S. Bureau of Mines Special Publication, 34 p., 33 sheets.
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