Mine detail: Logan Mine

Previously called 'Trans-OceanicTreasure'

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Location

Lat / long: 34.83921, -116.36056

Resource(B)

Primary: Manganese
Secondary: Iron
Tertiary: Phosphorus-Phosphates, Silica, Sulfur
Other material: Calcite, Hematite, Manganite, Psilomelane, Pyrolusite
Discovery year: 1930

Production

Operation type: Surface
Development status: Past Producer
First production started: 1934

Geology

References

MRDSM020122
MAS60710034
DEP10115894
Reference{Deposit:: CALIF. JOUR. MINES AND GEOL., V. 39, 1943, P. 495.}{Deposit:: CALIF. JOUR. MINES AND GEOL., V. 49, 1953, P. 115-117.}{Deposit:: U.S. GEOLOGICAL SURVEY MISC. GEOL. INVESTIGATIONS MAP I-476,}{Deposit:: 1966, P. 3 (TEXT).}{Deposit:: TRASK, P.O. GEOLOGIC DESCRIPTION OF MANGANESE DEPOSITS IN CA}{Deposit:: CA. DIV. OF MINES AND GEOLOGY BULL. 152, 1950, P. 200-201.}{Deposit:: TRENGROVE, RUSSELL R. RECON. OF CA MANGANESE DEPOSITS.}{Deposit:: BUMINES RI 5579, 1960.}{Workings:: OVERBURDEN: 1 CUBIC M= 2.4 MT}
ReporterMcmahan