The Unnamed (at south end of Gossan Ridge) is a zinc, lead, 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
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Unnamed (at south end of Gossan Ridge) MRDS details
Site Name
Primary: Unnamed (at south end of Gossan Ridge)
Commodity
Primary: Zinc
Primary: Lead
Primary: Silver
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: Oxidation, quartz-carbonate replacement, and tourmaline.
Rocks
Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Pyrite
Ore: Sphalerite
Ore: Silver
Ore: Galena
Gangue: Quartz
Comments
Comment (Deposit): Model Name = Sulfides in altered andesite.
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Quaternary.
Comment (Reference): Primary Reference = Miller and Elliott,1969
Comment (Workings): Workings / Exploration = The area was discovered by the U.S. Geological Survey in the late 1960's (Miller and Elliott, 1969). It has has been mapped and examined by the U.S. Geological Survey and by various exploration companies. Numerous occurrences of argentiferous galena, sphalerite, pyrite and arsenopyrite occur in an 18 mile long, 2- to 5-mile-wide altered zone surrounding the Quartz Creek quartz monzonite pluton. The alteration of the andesite trends N 15 W across the drainage basins of Quartz Creek and the Kiwalik River.
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 oxidation, quartz-carbonate replacement, and tourmaline. Fine-grained dikes of varying composition cut the andesites near the pluton. Dikes near the Quartz Creek pluton locally contain sulfide minerals. Talus from the area contained disseminated galena in oxidized quartz-carbonate rock. A sample of the talus contained 1500 ppm As, 0.04 ppm Au, 300 ppm Cu, and 150 ppm Pb. Another grab sample contained 3,000 ppm Cr, 7,000 ppm Pb, and 10,000 ppm Zn (Miller and Elliott, 1969).
Comment (Commodity): Gangue = Carbonates
Comment (Commodity): Ore Material = argentiferous galena
References
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): 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.
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.
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
