The Unnamed (west of Awlinyak Creek) is a copper, bismuth, silver, and tin 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: Copper, Bismuth, Silver, Tin
Lat, Long: 67.489, -154.45300
Map: View on Google Maps
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Unnamed (west of Awlinyak Creek) MRDS details
Site Name
Primary: Unnamed (west of Awlinyak Creek)
Commodity
Primary: Copper
Primary: Bismuth
Primary: Silver
Primary: Tin
Secondary: Fluorine-Fluorite
Location
State: Alaska
District: Koyukuk
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
Model Name: Sn skarn
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Malachite
Ore: Fluorite
Ore: Chalcopyrite
Comments
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = Site examined during regional geologic mapping by the USGS in the late 1970s.
Comment (Reference): Primary Reference = Grybeck and Nelson, 1981
Comment (Geology): Geologic Description = This occurrence consists of locally prominent copper staining in several cliffs near the contact of Devonian gneissic granite with Paleozoic chlorite schist and quartzite (Grybeck and Nelson, 1981). Grab samples that had visible fluorite and chlorite contained up to 3 ppm Ag, 300 ppm Bi, and 100 ppm Sn. A brief examination suggests that the occurrences are erratic and small. They probably are similar in origin to other Devonian contact-metamorphic deposits in nearby areas of the Brooks Range (Newberry and others, 1986).
Comment (Geology): Age = Devonian; related to the intrusion of Devonian pluton.
Comment (Deposit): Model Name = Skarn (Cox and Singer, 1986; model 14b)
Comment (Deposit): Other Comments = Located within Gates of the Arctic National Park.
References
Reference (Deposit): Grybeck, D.J., and Nelson, S.W., 1981, Mineral deposit map of the Survey Pass quadrangle, Brooks Range, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1176-F, 1 sheet, scale 1:250,000.
Reference (Deposit): Newberry, R.J., Dillon, J.T., and Adams, D.D., 1986, Regionally metamorphosed calc-silicate-hosted deposits of the Brooks Range, northern Alaska: Economic Geology, v. 81, p. 1728-1752
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