The Unnamed (in headwaters of upper Niukluk River) is a lead and 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 (in headwaters of upper Niukluk River) MRDS details
Site Name
Primary: Unnamed (in headwaters of upper Niukluk River)
Commodity
Primary: Lead
Primary: Copper
Location
State: Alaska
District: Council; Niukluk-Pargon River
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: Oxidation?
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Duftite
Comments
Comment (Workings): Workings / Exploration = No workings are known at this locality.
Comment (Reference): Primary Reference = Briskey, 1983
Comment (Geology): Geologic Description = This is a possible duftite occurrence along the trend of an apparently conformable pyrrhotite-bearing schist layer that is better expressed about one half mile to the ENE (Briskey, 1983). 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 = Duftite (?) in metamorphic rocks
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Cretaceous
References
Reference (Deposit): Briskey, J.A., 1983, Summary of field observations on Seward Peninsula mineral deposits: U.S. Geological Survey, unpublished administrative report, 34 p.
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.
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