Occasional Group

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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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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