Nevada · Douglas County
Past Producer

Pine Nut Molybdenum Prospect

Douglas County, Nevada, United States
MolybdenumTungstenGoldCopper
⌖ Show on mapUSGS source ↗
Commodities
PrimaryMolybdenum, Tungsten
SecondaryGold, Copper
Commodity typeM
Deposit
Deposit typePluton-related
Model80: Porphyry Mo, low-F
Deposit sizeS
Orebody formdisseminated
Ore controlThe deposit is controlled by lithology where dolomite altered to skarn, and by proximity to a pluton.
Materials
Ore mineralsScheelite, Powellite, Molybdenite, Huebnerite, Pyrite, Sericite, Calcite, Limonite, Hematite
GangueQuartz
Geology
Host rockMetasedimentary Rock,Metavolcanic Rock,Skarn (Tactite),Dolomite · Oreana Peak Fm
Associated rockQuartz Monzonite,Porphyry,Schist
StructureRocks in the district have been affected by a broad NNE-trending anticline, and by two sets of faults, one striking NNE and one striking NW to NNW, more prominent in the prospect area.
Tectonic settingTertiary to Recent Basin and Range type faulting bounds the ranges.
AlterationHost rocks have been silicified, sericitized, and K-feldspar altered.
Economic & production
Development statusPast Producer
Production years1937-1940, 1951-1956
First production1937
Last production1956
Discovery year1960
Identification
Deposit ID10310342
MRDS IDD001198
Alternate namesOwl Claim, Ramona Claim, Scheelite Claim, Tungstate Claim, Gardnerville Mine Area, Alpine Claim, Cosmos Claim, Extension Claim
RegionNA
Data scoreB
Coordinates38.87019, -119.62488
References
Hill, J. M., 1915 , Some Mining Districts in NE Calif. and NW Nev., USGS, Bull. 594Muncaster, N., 1967, A review of the Pine Nut, Nevada molybdenum prospect: Climax Molybdenum Company unpublished report, 6pStager and Tingley, 1988, NBMG Bull. 105, p. 46.Unpubl. Nev. Bureau of Mines FilesLemmon, D.M., Unpublished Data.Lemmon, D.M., and Tweto, O.L., 1962, Tungsten in The U.S., USGS Map, MR-25.Moore, J. G., 1969 , Geology and Mineral Deposits of Lyon, Douglas and Ormsby Counties, Nev., Nevada Bureau Of Mines, Bulletin 75.Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Database of significant deposits of gold, silver, copper, lead, and zinc in the United States; Part A, Database description and analysis; part B, Digital database: U.S. Geological Survey Open-File Report 98-206, 33 p., one 3.5 inch diskette.Lyon, R. J. P., 1975, Correlation between ground metal analysis, vegetation reflectance, and ERTS brightness over a molybdenum skarn deposit, Pine Nut Mountains, western Nevada; Proceedings of the International Symposium on Remote Sensing of Environment, no.10, Vol. 2, pp.1031-1037.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.