Unnamed Occurrence

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.

Site Name

Primary: Unnamed Occurrence
Secondary: Vabm Allen

Commodity

Primary: Copper

Location

State: Alaska
District: Koyukuk

Land Status

Land ownership: State
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

Type: R
Description: Major Thrust Fault

Alterations

Not available

Rocks

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Late Devonian

Name: Limestone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Devonian

Analytical Data

Not available

Materials

Ore: Bornite
Ore: Chalcopyrite
Ore: Malachite

Comments

Comment (Location): USGS MF-469, LOC. 6; USGS OFR 200, CU-OCCURRENCE IMMEDIATELY NE OF VABM ALLEN LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Development): AREA HAS BEEN SUBJECT TO RECONNAISSANCE GEOCHEMICAL SAMPLING AND PROSPECTING BY AT LEAST FOUR PRIVATE COMPANIES: BEAR CR. MINING CO., GENERAL CRUDE OIL CO., ALRENCO INC., AND BP ALASKA

Comment (Deposit): MINOR CHALCOPYRITE, BORNITE AND MALACHITE IN METAMORPHOSED REEF LIMESTONE

Comment (Geology): DEPOSIT IS IN METAMORPHOSED REEFOID LIMESTONE OF THE MID-DEVONIAN SKAJIT LIMESTONE WHICH IS THRUST OVER UPPER DEVONIAN SHALE, PHYLLITE ANDCHLORITIC SCHIST

Comment (Deposit): POTENTIAL FOR THE DISCOVERY OF SIGNIFICANT AMOUNTS OF MINERALIZATION IS LOW ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

References

Reference (Deposit): USBM OFR 103-78, P. 140, 470, 472

Reference (Deposit): USGS OFR 200

Reference (Deposit): USGS OFR 81-732, P. A15, B17

Reference (Other Database): BAG-MF-469-06

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