Mine detail: Bonanza Claim

Previously called ''

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Location

Lat / long:

41.93232, -123.94644

Resource(M)

Primary:	Chromium
Tertiary:	Palladium, Iridium, Ruthenium, Rhodium, Platinum
Ore:	Chromite
Gangue:	Olivine, Uvarovite
Orebody form:	PODS, LUMPS, BUNCHES, STRINGERS, DISSEMINATED
Discovery year:	1941

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1942
Last production ended:	1942

Geology

Host rock:	Franciscan Formation
Host type:	Dunite
Associated rock:	Josephine Ophiolite
Associated type:	Peridotite
Structure:	Major Shear Zone 6 Ft Wide Strikes N30w, Dips 30 Nw. Intense Shearing Throughout
Tectonic:	Klamath Mountains Accreted Terrane
Alteration processes:	Talc And Serpentine In Shear, Also Partial To Complete Serpentinization Of Peridotite And Dunite

References

MRDS	M700420
DEP	10088868
Reference	{Deposit:: STINSON, M.C., 1975, CALIFORNIA DIVISION OF MINES AND GEOLOGY MINERAL PROPERTY REPORT, UNPUB.}{Deposit:: WELLS, F.G., CATER, F.W., JR., AND RYNEARSON, G.A., 1946, GEOLOGICAL INVESTIGATIONS OF CHROMITE IN CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 134, PT. 1, CH. 1, P. 37.}{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:: *RIEN, J.C., 1952, MINES AND MINERAL RESOURCES OF DEL NORTE COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY V. 48, NO. 4, P. 269.}{Deposit:: CATER, F.W., JR., AND WELLS, F.G., 1953, GEOLOGY AND MINERAL RESOURCES OF THE GASQUET QUADRANGLE, CALIFORNIA-OREGON: U.S. GEOLOGICAL SURVEY BULLETIN 995-C, PL. 11.}
Reporter	Oster, Karel L. (Albers, John P.), Peterson, Jocelyn A.