Liberty Falls Prospect

The Liberty Falls Prospect is a manganese 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: Liberty Falls Prospect

Commodity

Primary: Manganese

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
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: VEIN, LENS

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Analytical Data: SELECTED SAMPLES CONTAINED UP TO 58.7% MN, USGS BULL 1246, P. 49

Materials

Ore: Manganite

Comments

Comment (Location): LOCATION APPROXIMATED FROM USGS OFR 80-892B, LOC. 47 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Development): ACTIVE ABOUT 1959; NO SYSTEMATIC SAMPLING HAD BEEN DONE BY 1967, ADGGS GC 15; NO OTHER DATA

Comment (Deposit): LENSES OF CHLORITIC SCHIST CONTAIN MANGANITE-BEARING QUARTZ VEINLETS, 3 IN MAX THICKNESS; SMALL ISOLATED LENSES OVER 1 MI ALONG STRIKE; INDIVIDUAL OUT CROPS 1 TO 5 FT, DISCOVERY WAS LENS 40 BY 2 FT

Comment (Geology): HOST ROCK IS VARIOUSLY DESCRIBED IN LITERATURE AS: 1. STRELNA GREENSTONE FORMATION, ADGGS GC 15, P. 4; 2. CHLORITIC SCHIST OF SKOLAI GROUP, USGS OFR 77-169A, P. 81, LOC. 47; 3. CHLORITIC SCHIST OF LIBERTY CR. TERRANE, USGS OFR 80-892B, LOC. 47

Comment (Workings): EXPLORED BY A FEW SHALLOW TRENCHES IN 1959

Comment (Deposit): DEPOSIT APPEARS TO BE HIGH GRADE BUT TONNAGE IS EVIDENTLY SMALL ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

References

Reference (Deposit): USGS BULL 1246, P. 49

Reference (Deposit): ADGGS GC 15, P. 4

Reference (Deposit): USGS OFR 77-169A, P. 81, LOC. 47

Reference (Deposit): USGS MF-438, LOC. 56

Reference (Deposit): USGS OFR 80-892A

Reference (Deposit): USGS OFR 80-892B, LOC. 47

Reference (Other Database): BAG-OFR-80-892B-47

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