The Unnamed (headwaters of Quartz Creek) is a zinc, silver, and lead 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 (headwaters of Quartz Creek) MRDS details
Site Name
Primary: Unnamed (headwaters of Quartz Creek)
Commodity
Primary: Zinc
Primary: Silver
Primary: Lead
Secondary: Copper
Location
State: Alaska
District: Fairhaven
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: Tourmaline and sericite alteration along closely spaced fractures; quartz-carbonate replacement.
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Chalcopyrite
Ore: Galena
Ore: Pyrite
Ore: Sphalerite
Gangue: Calcite
Gangue: Quartz
Gangue: Tourmaline
Comments
Comment (Deposit): Other Comments = This site is one of numerous occurrences of argentiferous galena, sphalerite, pyrite and arsenopyrite in an 18-mile-long, 2- to 5-mile-wide zone of altered andesite surrounding the Quartz Creek quartz monzonite pluton. The altered zone trends N 15 W, across the drainage basins of Quartz Creek and the Kiwalik River, parallel to prominent lineaments in the area.
Comment (Geology): Geologic Description = This occurrence is located adjacent to the mid-Cretaceous Quartz Creek pluton, a hook-shaped, quartz monzonite body. The pluton is surrounded by a N 15 W-trending alteration zone about 18 miles long and 2 to 5 miles wide. The alteration zone is in Jurassic-Cretaceous andesitic volcanic rocks, and is marked by carbonate-quartz replacement, and tourmaline. Fine-grained dikes of varying composition cut the andesites near the pluton. Dikes near the Quartz Creek pluton are locally mineralized. This occurrence consists of a galena-bearing calcite vein 18 inches thick in altered quartz monzonite. The altered quartz monzonite consists of quartz-carbonate-sericite rock containing disseminated pyrite, arsenopyrite, galena, sphalerite, and tourmaline. A composite grab sample contained 44 ppm Ag, 2.25% Pb, and 4.67% Zn (Miller and Elliott, 1969).
Comment (Geology): Age = Late Cretaceous.
Comment (Deposit): Model Name = Sulfides in altered quartz monzonite.
Comment (Workings): Workings / Exploration = The area has been mapped and examined by the U.S. Geological Survey and by various exploration companies.
Comment (Exploration): Status = Inactive
Comment (Reference): Primary Reference = Miller and Elliott, 1969
References
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Candle, Holy Cross, Norton Bay, Nulato, and Unalakleet quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-866, 102 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Candle Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-389, 1 sheet, scale 1:250,000.
Reference (Deposit): Cobb, E.H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p.
Reference (Deposit): Miller, T.P., and Elliott, R.L., 1969, Metalliferous deposits near Granite Mountain, eastern Seward Peninsula, Alaska: U.S. Geological Survey Circular 614, 19 p.
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