The Unnamed is a molybdenum 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 MRDS details
Site Name
Primary: Unnamed
Commodity
Primary: Molybdenum
Secondary: Tungsten
Location
State: Alaska
District: Bristol Bay
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
Model Name: Porphyry Mo, low-F
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Unknown
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Molybdenite
Comments
Comment (Geology): Age = Mineralization is Tertiary or younger. Potassium-argon dates from samples of this plutonic body range from about 35 to 41 m.y. (Reed and Lanphere, 1972; 1973).
Comment (Reference): Primary Reference = Lambeth, 1978
Comment (Workings): Workings / Exploration = Unknown
Comment (Reserve-Resource): Reserves = No reserves
Comment (Production): Production Notes = No production
Comment (Geology): Geologic Description = Lambeth (1978) described the occurrence as coarse molybdenite with tungsten in fracture in quartz monzonite. Nelson and others (1983, unit Ti17) described the bedrock as granite and biotite-hornblende granite and granodiorite. Potassium-argon dates from samples of unit Ti17 range from about 35 to 41 m.y. (Reed and Lanphere, 1972; 1973). The rocks in the south seem to be younger than the rocks in the north (Nelson and others, 1983).
Comment (Deposit): Model Name = Porphyry Mo, Low-F ? (Cox and Singer, 1986; model 21b ?)
Comment (Deposit): Other Comments = MAS/MILS sequence number 0020930025 (Bureau of Mines, 1995). Site is in Lake Clark National Park and Preserve. This unnamed occurrence may actually be the Neacola River occurrence (ARDF number LC001).
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Reed, B.L., and Lanphere, M.A., 1972, Generalized geologic map of the Alaska-Aleutian range batholith showing potassium-argon ages of the plutonic rocks: U.S. Geological Survey Miscellaneous Field Studies Map MF-372, 2 sheets, scale 1:1,000,000.
Reference (Deposit): Reed, B. L., and Lanphere, M. A., 1973, Alaska-Aleutian Range batholith-- Geochronology, chemistry, and relation to circum-Pacific plutonism: Geological Society of America Bulletin, v. 84, no. 8, p. 2583-2610.
Reference (Deposit): Lambeth, R.H., 1978, Mineral Appraisal of Certain Alaska National Interest Lands, Proposed Lake Clark National Park: A summary report: U.S. Bureau of Mines Open-File Number 114-78, 18 p.
Reference (Deposit): Nelson, W.H., Carlson, C., and Case, J.E., 1983, Geologic map of the Lake Clark quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1114-A, scale 1:250,000.
Reference (Deposit): U.S. Bureau of Mines, 1995, Spatial data extracted from the Minerals Availability System/Minerals Industry Location System (MAS/MILS): U.S. Bureau of Mines Special Publication 12-95, CD-ROM.
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