Description
Hermosa Mining Co. (?)
Commodities
PrimarySilver
SecondaryLead, Gold, Manganese, Copper
TertiaryZinc
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formTABULAR
Ore controlManganese Replacement Bodies Occur In Fracture Zone; Other Ores Occur In Subparallel Shear Veins Cutting Limestone Block Or Along Bedding Planes Of Limestone
Materials
Ore mineralsBraunite, Psilomelane, Pyrolusite, Wad
Geology
Host rockLimestone
Associated rockRhyolite · Chief Conglomerate, Breccia Member
StructureNw Trending American Fault, Salvador Vein Is Located Almost On Projected Course Of Hermosa Vein, But Is Separated From It By Zone Of Upfaulted Quartzite
Tectonic settingCorral Canyon Fault Block; Downthrow To Sw
AlterationLimestone Block Containing Ores Is Highly Faulted, Brecciated, Silicified, And Kaolinized
Economic & production
Development statusProducer
First production1900
Last production1944
Discovery year1877
Identification
Deposit ID10048336
MRDS IDM899920
Alternate namesHermosa Group, San Salvador Mine
RegionNA
Data scoreB
Coordinates31.45347, -110.71539
References
ABGMT-USBM FILE DATA.USBM FILES, SALVADOR MINE.SCHRADER, 1915, USGS BULL 582, P. 275.KEITH, STANTON B., INDEX OF MINING PROPERTIES IN SANTA CRUZ COUNTY, ARIZONA, ARIZONA BUREAU OF MINES BULLETIN 191, P. 59.ABGMT FILES, STANTON B. KEITH.FARNHAM, L.L., STEWART, L.A., AND C.W. DELONG, 1961, MANGANESE DEPOSITS IN EASTERN ARIZONA: U.S. BUREAU OF MINES INFORMATION CIRCULAR 7990, P. 171-173.MOORES, RICHARD C., 1972, THE GEOLOGY AND ORE DEPOSITS OF A PORTION OF THE HARSHAW DISTRICT, SANTA CRUZ COUNTY, ARIZONA: M.S. THESIS, UNIVERSITY OF ARIZONA, P. 83.SIMONS, FRANKS, 1974, GEOLOGIC MAP AND SECTIONS OF THE NOGALES AND LOCHIEL QUDRADRANGLES, SANTA CRUZ COUNTY, ARIZONA: USGS MAP I-762 (1:48000).ABGMT CLIPPINGS FILE, SALVADORE MINE.ADMR FILE DATA, SALVADOR MINE-WORKINGS MAP.CIMRI