Description
G. F. Colton (Duplex CLaims)
Commodities
PrimaryGold
SecondarySilver, Copper
TertiaryTungsten, Vanadium, Iron
Commodity typeM
Deposit
Deposit typefissure veins
Model150: Epithermal vein, Comstock
Deposit sizeM
Orebody formirregular to flat or saucer-shaped.
Ore controlOre is localized by intrusive activity.
Materials
Ore mineralsSphalerite, Galena, Chalcopyrite, Gold, Chalcocite, Cerussite, Cuprite, Malachite, Chalcedony, Hematite, Calcite, Brochantite, Limonite, Wulfenite, Vanadinite, Adularia
GangueQuartz
Geology
Host rockGneiss
Associated rockQuartz Monzonite,Andesite,Porphyry,Volcanic Rock (Aphanitic)
StructureThe area has been uplifted intruded by igneous rock and denuded by erosion.
AlterationThe deposit has been silicified by hydrothermal activity, and oxidized.
Economic & production
Development statusPast Producer
Production years1898-1950s
First production1898
Last production1959
Discovery year1897
Identification
Deposit ID10310513
MRDS IDW002897
Alternate namesDuplex Mine Area, Quartette Mine Area
RegionNA
Data scoreB
Coordinates35.46584, -114.91804
References
Callaghan, E. 1939, Geology of the Searchlight District, Clark Co. Nevada: USGS Bull. 906-D p. 135-188Koschmann, A H and Bergendahl, M H, 1968, Principal Gold Producing Districts of the U.S.: USGS Prof. Paper 610, p. 175Ransome, F. L., 1909, Prelim Goldfield, Bullfrog & other mining districts in southern Nevada: USGS Bull. 303 p. 63-75Lincoln, F. C., 1923, Min. Dists of Nevada: Reno, Nev. Newsletter Pub. Co. P. 24-27Ferguson, H. G. 1929, Min Dists of Nevada: Econ Geol, vol 24, P. 135Searchlight NV websites.NBMG Map 91, 1st, 2nd, 3rd editions.Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Significant deposits of gold, silver, copper, lead, and zinc in the United States: U.S. Geological Survey Open-File Report 90-206A, 33 p.; 98-206B. one 3.5 inch diskette.Longwell and others, 1965.