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
Secondary: Sheep Creek
Commodity
Primary: Copper
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
Form: PODIFORM
Structure
Type: R
Description: Major Thrust Fault
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: 5700 PPM CU, 31 PPM PB, 79 PPM ZN, 3 PPM MO, 3.4 PPM AG, 10 PPB AU, ROCK SAMPLE BM 1533, USBM OFR 103-78, P. 476
Materials
Ore: Malachite
Ore: Chalcopyrite
Comments
Comment (Location): USBM OFR 103-78, FIG. 31, BM 1533 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Geology): DEPOSITS LIE ALONG THRUST FAULT SEPARATING MIDDLE DEVONIAN SKAJIT LIMESTONE AND UNDERLYING UPPER DEVONIAN CHLORITIC SCHIST
Comment (Deposit): SEE ALSO: DEPOSIT NO. MF-6 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Deposit): ZONE OF PROBABLE STRATIFORM DEPOSITS IS PRESENT FROM APPROXIMATELY 5 MI SW OF VABM ALLEN TO THIS LOCATION; EXTENT OF INDIVIDUAL MINERAL OCCURRENCES NOT MORE THAN 5 FT BY A FEW TENS OF FT ALONG STRIKE; MINERALIZATION CONSISTS OF MALACHITE, AZURITE AND CHALCOPYRITE DISSEMINATED IN SCHIST AND IN SMALL PODS IN LIMESTONE
References
Reference (Deposit): USBM OFR 103-78, P. 140, 470-477
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
