The Red Bluff Bay Chromite Prospects is a chromium mine located in Alaska at an elevation of 351 feet.
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
Elevation: 351 Feet (107 Meters)
Commodity: Chromium
Lat, Long: 56.86472, -134.70833
Map: View on Google Maps
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Red Bluff Bay Chromite Prospects MRDS details
Site Name
Primary: Red Bluff Bay Chromite Prospects
Commodity
Primary: Chromium
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: 1933
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Form: TABULAR, LENS, POD
Structure
Type: L
Description: Phyllite And Schist Country Rock In Open Folds Trending N 30 Degrees W, Plunging 10 Degrees-50 Degrees Se
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: ORE VARIES FROM 18.65% - 50.56% CR2 O3 - USGS B 936-G, P. 181
Materials
Ore: Chromite
Gangue: Serpentine
Gangue: Pyroxene
Gangue: Olivine
Comments
Comment (Geology): ULTRABASIC INTRUSIVE IN TRIASSIC PHYLLITE AND GREENSTONE SCHIST COUNTRY ROCK.
Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Comment (Location): USGS B936-G, PLATE 22, DEPOSIT NOS. 1, 2; USGS MF-464, LOC. 14. ORE BODIES NOS. 1-8 EXTEND 5,500 FT. S OF LOCATION. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Commodity): CR: FE RATIO 0.70-2.18 IN CONCENTRATE
Comment (Development): 28 CLAIMS STAKED IN 1933, BUT ABANDONED AFTER A FEW YEARS. NO PRODUCTION.
Comment (Workings): NATURE OF WORKINGS NOT DEFINED
Comment (Deposit): CHROMITE OCCURS AS THIN TABULAR BODIES AND LENSES IN SERPENTINIZED DUNITE, PARALLEL TO SERPENTINIZED PYROXENITE LAYERS IN SILL-LIKE CONCORDANT BODY THAT INTRUDED PHYLLITE AND GREENSTONE SCHIST. 8 ORE BODIES RANGE UP TO A MAXIMUM OF 300 FT. LONG AND 30 FT. WIDE. THE 5 SMALLER DEPOSITS ARE HIGHER GRADE, WITH LAYERS OF BARREN DUNITE SEPERATING HIGH-GRADE CHROMITE LAYERS. 3 LARGER DEPOSITS ARE LOW GRADE, WITH CHROMITE-RICH MASSES OF DUNITE IN WHICH CHROMITE IS DISSEMINATED AS SMALL PODS AND LENSES OF SOLID ORE.
Comment (Deposit): MOST CHROMITE BODIES TOO SMALL TO BE ECONOMIC, LARGER ZONES MAY POSSIBLY BE ECONOMIC AS CONCENTRATING ORE. HIGH IRON CONTENT MAKES CHROMITE UNDESIRABLE. ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): USGS B 936-G, PLATE 22 (1942)
Reference (Deposit): USGS OF 78-787, P. 21 (1978)
Reference (Deposit): USGS MF-464, LOC. 14 (1972)
Reference (Other Database): BAG-B-936-G-PL-22-1,2
Reference (Reserve-Resource): USGS B936-G, P. 186
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