The Castle Island Mine is a barium-barite 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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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.
Castle Island Mine MRDS details
Site Name
Primary: Castle Island Mine
Secondary: Duncan Canal
Commodity
Primary: Barium-Barite
Tertiary: Silver
Tertiary: Copper
Tertiary: Lead
Tertiary: Zinc
Tertiary: Gold
Location
State: Alaska
District: Petersburg District
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Stratiform
Operation Type: Unknown
Year First Production: 1963
Year Last Production: 1980
Discovery Year: 1925
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: M
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: Sphalerite
Ore: Barite
Ore: Galena
Gangue: Sphene
Gangue: Graphite
Gangue: Magnetite
Comments
Comment (Deposit): Discovery Year: EARLY 1900'S
Comment (Geology): MOST WRITERS HAVE CALLED DEPOSIT & HOST ROCKS DEVONIAN BECAUSE OF PROXIMITY TO DEVONIAN FOSSIL SITES. RECENT WORK SUGGESTS TRIASSIC AGE MAY BE MORE LIKELY.
Comment (Commodity): ORE MATERIAL RUNS ABOUT 90% BARITE
Comment (Location): PATENTED CLAIMS
Comment (Development): LAST PRODUCTION PROBABLY NO LATER THAN 1980. PLANT REMOVED FROM SITE BY SUMMER 1982.
Comment (Workings): DEPOSIT MOSTLY BELOW SEA LEVEL. WORKED WITH DRILLING BARGE AND DRAG LINE (FROM SHORE). UNDERWATER MINING PROBABLY CONFINED WITHIN 100 FT BELOW SEA LEVEL
References
Reference (Production): ADGGS SPEC REPT 31
Reference (Deposit): ADGGS SPEC REPT 31, P 46
Reference (Deposit): USGS B 592, P. 109-113
Reference (Deposit): USGS OFR 78-870, P. 10-11
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