Commodities
PrimaryBoron-Borates
TertiaryGypsum-Anhydrite
Commodity typeN
Deposit
Deposit typeSEDIMENTARY-LACUSTRINE
Deposit sizeS
Geology
StructureEXTENSIVELY FAULTED AND FOLDED SECTION, BORATE-BEARING BEDS DIP STEEPLY TO THE SOUTH.
Economic & production
Development statusPast Producer
First production1899
Last production1913
Discovery year1898
Identification
Deposit ID60001096
MRDS IDRL10057
Alternate namesFrazier Mine, Russell Borate Mine, Ventura County Borate Area, Old Columbus Mine
RegionNA
Data scoreD
Coordinates34.78329, -119.06763
References
GALE, H.S., 1914, BORATE DEPOSITS IN VENTURA COUNTY, CALIFORNIA, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY, 1912: U.S. GEOLOGICAL SURVEY BULLETIN 540, P. 434-456.SMITH, G.I., 1985, BORATE DEPOSITS IN UNITED STATES: DISSIMILAR IN FORM, SIMILAR IN GEOLOGIC SETTING, IN BARKER, J.M., AND LEFOND, S.J., 1985, BORATES: ECONOMIC GEOLOGY AND PRODUCTION; PROCEEDINGS OF A SYMPOSIUM HELD ON OCTOBER 24, 1984, AT THE FALL MEETING OF SME-AIME IN DENVER, COLORADO: NEW YORK, SOCIETY OF MINING ENGINEERS OF THE AMERICAN INSTITUTE OF MINING, METALLURGICAL, AND PETROLEUM ENGINEERS, INC., P. 38-51.