Riley, Riley Extension deposit

Deposit with commodities tungsten

More information at and near this site: W-NV00124

About this location

Feature ID W-Mo00553
Geographic coordinates -117.256, 41.1944
Point definition Same location as the Riley Extension mine (Mf00446)
Reference Hotz and Willden (1964); Plate 1
Date: 1955; Scale: Medium (1:24,000-1:250,000)
Remarks (1) Stager and Tingley (1988)

Geologic information

Commodities tungsten
Valuable materials chalcopyrite; galena; scheelite; sphalerite
Associated materials garnet; molybdenite; pyrite; quartz
Mineralization style skarn
Host rock age Cambrian
Host unit name Preble Formation
Host lithologies granodiorite; limestone; shale; skarn; slate
Alteration contact metamorphism; skarn
Reference Hotz, P.E., and Willden, R., 1964, Geology and mineral deposits of the Osgood Mountains quadrangle, Humboldt County, Nevada: U.S. Geological Survey Professional Paper 431, 128 p., scale 1:62,500,

Deposit models and geoenvironmental models

Type Model Reference
Deposit model 14a - W skarn deposits Sherlock, M.G., Cox, D.P., and Huber, D.F., 1996, Known mineral deposits and occurrences in Nevada, in Singer, D.A., ed., An analysis of Nevada's metal-bearing mineral resources: Nevada Bureau of Mines and Geology Open-File Report 96-2, p. 10-1–10-38,
Geoenvironmental model Sn and (or) W skarn and replacement deposits Hammarstrom, J.M., Elliott, J.E., Kotlyar, B.B., Theodore, T.G., Nash, J.T., John, D.A., Hoover, D.B., and Knepper, D.H., Jr., 1995, Sn and (or) W skarn and replacement deposits, in du Bray, E.A., ed., Preliminary compilation of descriptive geoenvironmental mineral deposit models: U.S. Geological Survey Open-File Report 95-831, p. 54–61,

Geographic context based on the point coordinates