The Dust Mountain Prospect is a chromium 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
Dust Mountain Prospect MRDS details
Site Name
Primary: Dust Mountain Prospect
Commodity
Primary: Chromium
Tertiary: Nickel
Tertiary: Platinum
Location
State: Alaska
District: Tonsina/Bernard Mountain
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: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Dunite
Role: Associated
Age Type: Associated Rock
Age Young: Holocene
Analytical Data
Analytical Data: RICHEST MATERIAL ASSAYED 36% TO 57.7% CHROMITE, CR: FE RATIO OF 1.21 TO 3.06, USGS BULL 1246, P. 52
Materials
Ore: Chromite
Comments
Comment (Geology): PROSPECT LIES AT NE END OF LARGE DUNITE SILL THAT CROPS OUT DISCONTINUOUSLY OVER AN AREA 12 MI LONG BY 1.5 MI WIDE; APPROXIMATELY PARALLELTO BERNARD MT. FAULT TO THE S, WHICH TRENDS ROUGHLY N 85 E; SILL INTRUDES ROCKS CORRELATIVE WITH MISS TO PERM STRELNA FORMATION
Comment (Location): LOCATION APPROXIMATED FROM USGS OFR 80-892B, LOC. 43A
Comment (Commodity): TRACE NI AND PT PRESENT
Comment (Development): APPARENT POST 1950 ACTIVITY
Comment (Deposit): SEE ALSO: BERNARD MT. PROSPECT ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Deposit): SEGREGATION OF CHROMITE IN DUNITE UP TO 10 FT THICK EXPOSED FOR 75FT; TRACE NI AND PT; ALSO DISSEMINATED CHROMITE IN DUNITE
References
Reference (Deposit): USGS BULL 1246, P. 49, 52
Reference (Deposit): USGS MF-438, LOC. 52
Reference (Deposit): USGS OFR 80-892A
Reference (Deposit): USGS OFR 80-892B, LOC. 43A
Reference (Deposit): USBM IC 8626, P. 18
Reference (Other Database): BAG-OFR-80-892B-43A
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