Description
Harry Stimler & W.M. Marsh
Commodities
PrimaryGold
SecondarySilver, Copper, Lead
TertiaryBismuth, Potassium, Antimony, Tin
Commodity typeB
Deposit
Deposit typesilicified zones at shear intersections
Model154: Epithermal quartz-alunite Au
Deposit sizeY
Orebody formirregular, tabular or knobs
Ore controlMost ore was found in topographically prominent silicified zones. Mineralization was genetically related to the collapsed caldera rim of a volcanic center.\nSome ore was concentrated at offsets along the Columbia Mt fault.
Materials
Ore mineralsPyrite, Bismuthinite, Goldfieldite, Silver
GangueQuartz, Alunite, Barite, Gypsum, Limonite, Kaolinite
Geology
Host rockDacite,Andesite,Rhyolite · Milltown
Associated rockShale,Quartzite,Limestone,Alkali-Granite (Alaskite),Granite,Sedimentary Rock,Andesite,Dacite,Rhyolite,Basalt · "El Dorado", "Siebert Fm", "Malpais Basalt"
StructureThe N-S-trending Columbia Mountain Fault, with left lateral offsets at intersections with E-W-trending faults (800-900 feet of offset)., Tertiary deposits, domed and faulted post Miocene: steeply dipping N-S and E-W faults,
Tectonic settingVolcanic center, Basin and Range
Alterationsilicification, hydrothermal; oxidation
Economic & production
Development statusProducer
Production years1904-1996
First production1904
Last production1996
Discovery year1902
Identification
Deposit ID10310328
MRDS IDW002900
Alternate namesMiss Jessie, Laguna, Last Chance, Golconda, Wonder, Goldstone, Mammoth, Red Boy, Commonwealth, Blue Bull, Atlanta, C.O.D., Goldfield Merger, Jumbo, Mohawk No. 1 and No. 2, Combination, Combination No. 2 and No. 3, January, February, Hazel Queen, Rustler Fraction, Slim Jim Fraction, Goldwedge, Lucky Boy, Red Top, Grizzly Bear, Clermont, Vinegorone
RegionNA
Data scoreA
Coordinates37.71023, -117.23341
References
Ransome, F.L., 1909, The geology and ore deposits of Goldfield, Nevada: U.S. Geological Survey Professional Paper 66, 258 p.Searls, F. Jr., 1948, Geology and Ore Deposits of Goldfield, Nev.: Nevada Univ. Bull., vol. 42, No. 5, Geology and Mining Series, 48, 24 p.Koschmann, A. H. and Bergendahl, M. H., 1968; Principal Gold Producing Districts of the United States: USGS Prof. Paper 610Spurr, J E, 1905, The Ores of Goldfield, Nev.: USGS Bull. No. 260, p. 132-139.Lincoln, F C, 1923, Mining Districts and Mineral Resources of Nevada, Reno, Nev. Newsletter Pub., p. 67-73.Albers, J.P. and Stewart, J.H., 1972, Geology and Mineral Deposits of Esmeralda County, Nevada: NBMG Bull. 78, p. 67-69.R. P. Ashley, and M. L. Silberman, 1976, Direct dating of mineralization at Goldfield, Nevada, by potassium-argon and fission-track methods; Economic Geology,v. 71; no. 5, p. 904-924.Felix E. Mutschler, Steve Ludington, and Arthur A. Bookstrom, 1999, Giant Porphyry-Related Metal Camps of the World-A Database; USGS Open-File Report 99-556.Peter Vikre, Robert Fleck, and Robert Rye, 2005, U.S. Geological Survey Open-File Report 2005-1258; Ages and geochemistry of magmatic hydrothermal alunites in the Goldfield district, Esmeralda Co., Nevada; poster displayed May 15-18 at the 2005 Geological Society of Nevada Symposium "Window to the World" in Sparks, Nevada.Ashley, R.P. 1974, Goldfield mining district: in, Guidebook to the geology of four Tertiary volcanic centers in central Nevada: Nevada Bureau of Mines and Geology, Report 19, pp. 49-66.