Unnamed

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

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.

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.

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.