Mine detail: Sunset

Previously called 'Darnell'

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Location: Del Norte County, California, United States, North America
Lat / long: 41.80121, -123.86893
dep_id: 10029766
mrds_id: M007533
Commodity type: metallic
Major mineral: Chromium
Trace mineral: Platinum, Iridium, Ruthenium, Rhodium, Palladium
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Chromite
gangue: Olivine
orebody_fm: KIDNEY SHAPED PODS
model: 15: Podiform chromite (minor)
alteration: Ultramafic Rocks Are Serpentinized
conc_proc: Magmatic Segregation
ore_ctrl: Magmatic Segregation
Reporter: Gere, W., Peterson, Jocelyn A.
hrock_type: Dunite
arock_unit: Josephine Ophiolite
arock_type: Peridotite
Structure: Strong Shear, Striking N35w And Dipping 75ne, Hosts Ore
tectonic: Klamath Mountains Accreted Terrane
References:
  • 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. 57.
  • 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. 293.
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