Mine detail: Chambers Mine

Previously called ''

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Location

Lat / long: 44.35096, -118.81467

Resource(M)

Primary: Chromium
Tertiary: Platinum, Palladium, Iridium, Ruthenium, Rhodium
Ore: Chromite
Gangue: Antigorite, Uvarovite
Orebody form: MASSIVE AND DISSEMINATED. IRREGULAR LENSES AND KIDNEYS

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
First production started: 1918

Geology

Host rock:Canyon Mountain Complex
Host type:Dunite
Associated rock:Sedimentary Rocks;Canyon Mountain Complex
Associated type:Peridotite
Structure:Prominent Jointing Gives Rocks A Platy Character
Tectonic:Ochoco-Blue Mountains
Alteration processes:Serpentinization. Dunite Is Cut By Serpentine Stringers

References

MRDSM014921
DEP10033039
Reference{Deposit:: ALLEN, J.E., 1941, CHROMITE DEPOSITS OF OREGON (REVISED ED.): OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 9, P. 60-62.}{Deposit:: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES, 1941, OREGON METAL MINES HANDBOOK, NORTHEASTERN OREGON--WEST HALF: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 14-B, P. 21-22.}{Deposit:: WESTGATE, L.G., 1921, DEPOSITS OF CHROMITE IN EASTERN OREGON, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY 1920: U.S. GEOLOGICAL SURVEY BULLETIN 725, P. 47.}{Deposit:: HUNDHAUSEN, R.J., BANNING, L.H., HARRIS, H.M., AND KELLY, H.J., 1956, EXPLORATION AND UTILIZATION STUDIES, JOHN DAY CHROMITES, OREGON: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 5238, P. 9-14.}{Deposit:: CARLSON, C.A., AND OTHERS, 1985, ANALYSES FOR PLATINUM-GROUP ELEMENTS IN SAMPLES FROM PODIFORM CHROMITE DEPOSITS, CALIFORNIA AND OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-442, 14 P.}{Deposit:: THAYER, T.P., 1940, CHROMITE DEPOSITS OF GRANT COUNTY, OREGON: U.S. GEOLOGICAL SURVEY BULLETIN 922-D, P. 96-98.}
ReporterLee, W., Ferns, Mark L. (Brooks, Howard C.), Peterson, Jocelyn A.