Dust Mountain Prospect

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

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.

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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