Casement Glacier Nunatak Occurrence

The Casement Glacier Nunatak Occurrence is a zinc 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: Casement Glacier Nunatak Occurrence

Commodity

Primary: Zinc

Location

State: Alaska
District: Juneau/Glacier Bay

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: SELECTED SAMPLE CONTAINED 300 PPM ZN

Materials

Gangue: Quartz
Gangue: Ankerite
Gangue: Pyrite

Comments

Comment (Location): LOCATED FROM DESCRIPTION IN USGS PP-632, P. 34, TABLE 9, LOC. 3 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Deposit): QUARTZ-ANKERITE-BARITE VEINS UP TO 1 FT THICK IN 10-15 FT WIDE ALTERED ZONE IN HORNFELS

Comment (Commodity): PYRITE IS ONLY VISIBLE SULFIDE

Comment (Geology): NUNATAK IS COMPOSED OF THIN BEDDED LIMESTONE, ARGILLITE AND HORNFELS

References

Reference (Deposit): USGS OFR 85-717, LOC. J003

Reference (Other Database): BAG-OFR-85-717-003

Reference (Deposit): USGS PP 632, P. 34, TABLE 9, LOC. 3

Reference (Deposit): USGS OFR 78-494, TABLE C-64, LOC. 83

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