The East Fork Porphyry Molybdenum 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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East Fork Porphyry Molybdenum MRDS details
Site Name
Primary: East Fork Porphyry Molybdenum
Secondary: Unnamed (east fork Bond Creek)
Commodity
Primary: Molybdenum
Location
State: Alaska
District: Chisana
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Molybdenite
Gangue: Pyrite
Gangue: Quartz
Comments
Comment (Workings): Workings / Exploration = No data available, probably low grade. Type of workings: surface
Comment (Exploration): Status = Inactive
Comment (Deposit): Model Name = Lode: porphyry
Comment (Reference): Primary Reference = Richter, 1973, USGS I-789, loc. 19
Comment (Geology): Geologic Description = Quartz-pyrite-molybdenite veins and veinlets in strongly altered and brecciated trondhjemite of Cretaceous age.
Comment (Deposit): Other Comments = Deposit is of interest mainly due to its proximity to two large tonnage, low grade porphyry copper deposits at Bond Creek and Orange Hill. See also: Monte Cristo Creek (NB037)
References
Reference (Deposit): Richter, D.H., 1973, Reconnaissance geological map of the Nabesna A-1 quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map 1-789, scale 1:63,360.
Reference (Deposit): Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, scale 1:250,000.
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