Commodities
PrimaryGold
SecondaryPlatinum
Commodity typeM
Deposit
Deposit typeStream Placer
Model119: Placer Au-PGE
Deposit sizeS
WorkingsSurface/Underground
Orebody formSTREAM SEDIMENT DEPOSITS
Ore controlStream Hydraulics
Materials
Ore mineralsGold, Hematite, Magnetite
Geology
Host rockGravel · Ione Formation
Tectonic settingBase Of Sierra Nevada Foothills
Economic & production
Development statusProducer
Discovery year1848
Identification
Deposit ID10038060
MRDS IDM045331
RegionNA
Data scoreB
Coordinates38.12185, -120.45711
References
DAY, D.T., AND RICHARDS, R.H., 1906, USEFUL MINERALS IN THE BLACK SANDS OF THE PACIFIC SLOPE: U.S. GEOLOGICAL SURVEY MINERAL RESOURCES OF THE UNITED STATES, CALENDAR YEAR 1905, P. 1182-1183.CLARK, W.B., 1970, GOLD DISTRICTS OF CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 193, P. 126.CLARK, W.B., AND LYDON, P.A., 1962, MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY COUNTY REPORT 2, P. 208.