Commodities
PrimaryChromium
TertiaryPlatinum, Palladium, Rhodium, Iridium, Ruthenium
Commodity typeM
Deposit
Model15: Podiform chromite (minor)
Deposit sizeS
WorkingsSurface/Underground
Orebody formLENS, CURVED TABULAR, STRINGERS
Ore controlMagmatic Segregation
Materials
Ore mineralsChromite
GangueCalcite, Talc
Geology
Host rockPeridotite · Pearsoll Peak Ophiolite
Associated rockHornblendite
StructureNorth-Trending Fault Of Considerable Displacement
Tectonic settingKlamath Mountains Accreted Terrane
Economic & production
Development statusPast Producer
Discovery year1915
Identification
Deposit ID10042658
MRDS IDM060536
RegionNA
Data scoreB
Coordinates42.31482, -123.7831
References
RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 52, P. 44-46.THAYER, T.P., 1974, U.S. GEOLOGICAL SURVEY, UNPUB. DATA.PAGE, N.J, JOHNSON, M.G., HAFFTY, JOSEPH, AND RAMP, LEN, 1975, OCCURRENCE OF PLATINUM GROUP METALS IN ULTRAMAFIC ROCKS OF THE MEDFORD-COOS BAY 2 DEGREE QUADRANGLE, SOUTHWESTERN OREGON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-694, SCALE 1:250,000.RAMP, LEN, AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 100, TABLE 1.OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES, 1952, OREGON METAL MINES HANDBOOK, SOUTHWESTERN OREGON--JOSEPHINE COUNTY (2D ED.): OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 14-C, V. 2, SEC. 1, P. 127-128.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.