The Unnamed (Inian Islands) is a iron 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 (Inian Islands) MRDS details
Site Name
Primary: Unnamed (Inian Islands)
Commodity
Primary: Iron
Location
State: Alaska
District: Chicagof
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
Not available
Analytical Data
Not available
Materials
Ore: Magnetite
Comments
Comment (Geology): Age = Jurassic or Cretaceous.
Comment (Reference): Primary Reference = Rossman, 1959 (B 1058-E)
Comment (Workings): Workings / Exploration = No workings were reported.
Comment (Exploration): Status = Inactive
Comment (Geology): Geologic Description = The occurrence is in a Mesozoic terrane consisting of greenstone with minor limestone and amphibolite of Triassic age and volcanic-rich schist of Jurassic age. Foliated diorite of Jurassic or Cretaceous age crops out on the far western Inian Island, about 1/2 mile southwest of the iron occurrence (Rossman, 1959, plate 12). The occurrence is shown on plate 16 of Rossman (1959), but is not otherwise described; it could be either in the Triassic or Jurassic series. It is assumed, but not known, to be a magnetite replacement in limestone or greenschist related to the emplacement of the late Mesozoic foliated hornblende diorite.
Comment (Deposit): Model Name = Distal magnetite replacement body in limestone or greenschist.
Comment (Deposit): Other Comments = the site is Tongass National Forest; it appears to be in an area open for mineral location.
References
Reference (Deposit): Rossman, Darwin, 1959, Geology and ore deposits of the northwestern part of Chichagof Island, Alaska: U.S. Geological Survey Bulletin 1058-E, p. 139-216.
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