The Cape Creek Beach is a tin 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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Cape Creek Beach MRDS details
Site Name
Primary: Cape Creek Beach
Secondary: American Tinfields, Inc.
Commodity
Primary: Tin
Location
State: Alaska
District: Port Clarence
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Alluvial placer Sn
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Cassiterite
Comments
Comment (Workings): Workings / Exploration = Exploration has included 74 churn-drill holes that delineate the deposit (Mulligan and Thorne, 1959, p. 45-47).
Comment (Geology): Age = Quaternary
Comment (Reference): Primary Reference = Mulligan and Thorne, 1959
Comment (Reserve-Resource): Reserves = Not defined; tin grades are too low to have justified mining in the past.
Comment (Geology): Geologic Description = These deposits have formed from the reworking of alluvial deposits by recent shorelines at the mouth of Cape Creek. Seventy-four churn-drill holes define a fan-shaped area of about 25 acres of cassiterite-bearing, wave-worked beach deposits peripheral to the Cape Creek drainage where it crosses a 1,000 foot -wide coastal zone before entering Bering Sea. This low coastal zone is a former lagoon that is now filled with prograded beach deposits. The tin-bearing deposits are 4 to 26 feet thick and commonly 10 to 15 feet thick. The churn-drill holes extended to bedrock. The beach deposits are frozen except along the modern beach. Tin grades in the beach placer are low; commonly a few hundreths to a few tenths pound of tin per cubic yard (Mulligan and Thorne, 1959, p. 46-47).
Comment (Deposit): Model Name = Beach tinplacer (related to alluvial tin placer (Cox and Singer, 1986; model 39e)
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Teller quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-587, 130 p.
Reference (Deposit): Cobb, E.H., and Sainsbury, C.L., 1972, Metallic mineral resource map of the Teller quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-426, 1 sheet, scale 1:250,000.
Reference (Deposit): Mulligan, J.J., and Thorne, R.L., 1959, Tin-placer sampling methods and results, Cape Mountain district, Seward Peninsula, Alaska: U.S. Bureau of Mines Information Circular 7878, 69 p.
Reference (Deposit): Sainsbury, C.L., 1972, Geologic map of the Teller quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Map I-685, 4 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Heide, H.E., and Sanford, R.S., 1948, Churn drilling at Cape Mountain tin placer deposits, Seward Peninsula, Alaska: U.S. Bureau of Mines Report of Investigations 4345. 14 p.
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