The Coffee Creek is a gold 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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Coffee Creek MRDS details
Site Name
Primary: Coffee Creek
Commodity
Primary: Gold
Secondary: Mercury
Location
State: Alaska
District: Kougarok
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Placer Au-PGE
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Ore: Pyromorphite
Ore: Cerussite
Ore: Cinnabar
Comments
Comment (Exploration): Status = Inactive
Comment (Deposit): Model Name = Placer Au-PGE (Cox and Singer, 1986; model 39a)
Comment (Geology): Geologic Description = Up to 25 feet of muck covered, gold-bearing stream gravels were initially mined in 1901 here (Collier, 1902). The lower part of the mined drainage is cut into alluvial terrace gravels, the Kougarok gravel, (Hopkins, 1963) but most of the mined drainage is on low grade Lower Paleozoic metasedimentary bedrock (Till and others, 1986). Kougarok gravel carries small amounts of gold (Sainsbury and others, 1969; Sainsbury, 1975) but at least part of the gold in Coffee Creek appears to be derived from local bedrock sources. A residual placer contains angular, spongy, and bright gold in 4 to 7 feet of angular schist and quartz and adjacent weathered schist bedrock (Collier and others, 1908) in the headwaters of Wonder Gulch (BN005). Small amounts of cinnabar are present in placer concentrate from Coffee Creek and Wonder Gulch; cerussite and pyromorphite are also present in concentrate from Wonder Gulch (Anderson, 1947).
Comment (Reference): Primary Reference = Cobb, 1975
Comment (Workings): Workings / Exploration = Various combinations of hand, scraper, dozer, dragline, and sluice surface operations have taken place along 8,500 feet of the Coffee Creek drainage and the adjacent 1,000 feet of Dome Creek, and 1,500 feet of Wonder Gulch (Sainsbury and others, 1969). Early mining included winter underground drifting and summer sluicing (Cobb, 1975).
Comment (Geology): Age = Quaternary
References
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Bendeleben quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-417, 1 sheet, scale 1:250,000.
Reference (Deposit): Collier, A. J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.
Reference (Deposit): Sainsbury, C.L., Kachadoorian, Reuban, Hudson, Travis, Smith, T.E., Richards, T.R., and Todd, W.E., 1969, Reconnaissance geologic maps and sample data, Teller A-1, A-2, A-3, B-1, B-2, B-3, C-1, and Bendeleben A-6, B-6, C-6, D-5, and D-6 quadrangles. Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 377, 49 p., 12 sheets, scale 1:63,360.
Reference (Deposit): Collier, A.J., 1902, A reconnaissance of the northwestern portion of Seward Peninsula, Alaska: U.S. Geological Survey Professional Paper 2, 70 p.
Reference (Deposit): Hopkins, D.M., 1963, Geology of the Imuruk Lake area, Seward Peninsula, Alaska: U.S. Geological Survey Bulletin 1141-C, p. C1-C101.
Reference (Deposit): Anderson, Eskil, 1947, Mineral occurrences other than gold deposits in northwestern Alaska: Alaska Territorial Division of Mines Pamphlet 5-R, 48 p.
Reference (Deposit): Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bendeleben quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-429, 123 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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