The Unnamed Occurrence is a copper 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.
Unnamed Occurrence MRDS details
Site Name
Primary: Unnamed Occurrence
Commodity
Primary: Copper
Secondary: Zinc
Location
State: Alaska
District: Koyukuk
Land Status
Land ownership: National Park
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
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: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: 20,000 PPM CU, CHIP SAMPLE
Materials
Ore: Chalcopyrite
Ore: Sphalerite
Ore: Cuprite
Gangue: Quartz
Comments
Comment (Location): ADGGS OFR 133 B, PLATE 1, SAMPLE NO. 348 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Deposit): 5 TO 250 CM THICK LAYER OF CHALCOPYRITE WITH SPARSE CUPRITE AND SPHALERITE; 300 M LONG
Comment (Geology): DEPOSIT IS NEAR MAJOR THRUST FAULT THAT SEPARATES DEVONIAN SKAJIT LIMESTONE AND UNDERLYING DEVONIAN PHYLLITE AND SLATE UNIT, USGS OFR 200
Comment (Deposit): SEE ALSO: DEPOSIT NO. AOF-245 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Deposit): ADGGS OFR 133 B, SAMPLE NO. 348
Reference (Deposit): USGS OFR 200
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