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
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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.
Liberty Falls Prospect MRDS details
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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