The Unnamed (northwest side of upper Niukluk River) 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: 65.2, -163.93000
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Unnamed (northwest side of upper Niukluk River) MRDS details
Site Name
Primary: Unnamed (northwest side of upper Niukluk River)
Commodity
Primary: Zinc
Primary: Lead
Primary: Copper
Primary: Silver
Location
State: Alaska
District: Council
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
Alteration Type: L
Alteration Text: Extensive oxidation of sulfide minerals has occurred.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Sphalerite
Ore: Malachite
Ore: Azurite
Ore: Copper
Comments
Comment (Workings): Workings / Exploration = No workings are known at this locality.
Comment (Geology): Age = Cretaceous ; this occurrence may be related to emplacement of the Pargon pluton which is assumed to be Cretaceous in age.
Comment (Reference): Primary Reference = Bundzten, 1974
Comment (Geology): Geologic Description = Native copper is disseminated in malachite-azurite-sphalerite-rich rock from near a marble-schist contact here. Analytical data reported by Bundzten (1974) shows significant concentrations of Ag, Cu, Pb, and Zn. This locality, and several others in this part of the Bendeleben A-4 quadrangle, are in high grade metamorphic rocks that are structurally above or peripheral to the crosscutting Pargon pluton. The Pargon pluton is mostly granodiorite and assumed to be Cretaceous in age (Till and others, 1986). It was emplaced at shallower depths than the more deep-seated Bendeleben pluton to the east. The metamorphic rocks peripheral to the western Pargon pluton are also intruded by small, felsic dikes and plugs including quartz porphyry and muscovite granite.
Comment (Deposit): Model Name = Base metal mineralization near marble-schist contact
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Gamble, B.M., 1988, Non-placer mineral occurrences in the Solomon, Bendeleben, and southern part of the Kotzebue quadrangles, western Alaska: U.S. Geological Survey Map MF-1838-B, 13 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Till, A.B., Dumoulin, J.A., Gamble, B. ., Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data, Soloman, Bendeleben, and southern Kotzebue quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 86-276, 10 p., 3 plates, scale 1:250,000.
Reference (Deposit): Bundtzen, T.K., 1974, Geochemistry of parts of the Bendeleben A-6, A-5, A-4, B-5, and B-4 quadrangles, Alaska: Alaska Division of Geological and Geophysical Surveys Open-File report 39, 10 p., 6 oversized tables, 1 map, scale 1:63,360.
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