Black Mt Prospect

The Black Mt Prospect is a tin 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: Black Mt Prospect
Secondary: Willow Branch of Tozer Cr.
Secondary: Winkley Fault

Commodity

Primary: Tin
Secondary: Zinc

Location

State: Alaska

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
Discovery Year: 1967
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: Core Of Normally-Faulted Domal Uplift

Type: L
Description: Winkley Fault; Mineralized Nw-Trending High-Angle Normal Fault

Alterations

Not available

Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age in Years: 79.100000+-2.900000
Dating Method: K-Ar
Material Analyzed: Biotite
Age Young: Late Cretaceous

Analytical Data

Not available

Materials

Ore: Cassiterite
Ore: Marmatite
Gangue: Idocrase
Gangue: Quartz
Gangue: Fluorite
Gangue: Pyrite
Gangue: Garnet

Comments

Comment (Location): USGS PROF. PAPER 575-B, FIG. 1, P. B22. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Deposit): GARNET-RICH TACTITE ADJACENT TO ALTERED FAULT ZONE CONTAINS MARMATITE, PYRITE, AND ARSENOPYRITE IN GANGUE OF FLUORITE AND F. GRAINED SILICA; NEARBY QUARTZ-CASSITERITE VEINS IN SLATE.

Comment (Geology): FAULT-BOUNDED GRANITE STOCK INTRUDED INTO PRECAMBRIAN CARBONACEOUS METASEDIMENTARY ROCKS; ALTERED TO ANDALUSITE HORNFELS AT CONTACT; NEARBY PRECAMB. ARGILLACEOUS LIMESTONE REPLACED BY CALC-SILICATE MINERALS OVER WIDE AREAS.

Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

References

Reference (Deposit): USGS PROF. PAPER 575-B, P. B21-B25.

Reference (Deposit): USGS OFR 77-796-B, P. 7, LOC. 43.

Reference (Deposit): GSA BULL., V. 94, NO. 6, P. 769-771.

Reference (Other Database): BAG-MF-426-12

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