The Unnamed (near Swift River) is a ree 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 (near Swift River) MRDS details
Site Name
Primary: Unnamed (near Swift River)
Commodity
Primary: REE
Location
State: Alaska
District: McGrath
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
Not available
Rocks
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Allanite
Ore: Monazite
Ore: Xenotime
Comments
Comment (Exploration): Status = Inactive
Comment (Reference): Primary Reference = Reed and Anderson, 1969
Comment (Workings): Workings / Exploration = Reconnaissance sampling has been completed in this area.
Comment (Geology): Geologic Description = Reed and Anderson (1969) reported that biotite granite of the Tired Pup pluton contains abundant accessory allanite and monazite and (or) xenotime. The Tired Pup pluton is a Lower Tertiary pluton of the Alaska-Aleution Range batholith (Reed and Lanphere, 1973).
Comment (Deposit): Model Name = Disseminated accessory minerals in granite
Comment (Geology): Age = Early Tertiary. Several K-Ar ages from the Tired Pup pluton are about 55 to 60 Ma (Reed and Lanphere, 1973).
References
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): Reed, B.L., and Anderson, L.A., 1969, Aeromagnetic maps of part of the southern Alaska Range: U.S. Geological Survey Open-File Report, 6 p.
Reference (Deposit): Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska; Supplement to Open-File Report 76-485; Part A, Summaries to January 1, 1981: U.S. Geological Survey Open-File Report 81-1343-A, 25 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Lime Hills quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-412, 1 sheet, scale 1:250,000.
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-485, 101 p.
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