Nevada · Elko County
Past Producer

Contact District Copper Project

Elko County, Nevada, United States
SilverCopperMolybdenumGoldBarium-Barite
⌖ Show on mapUSGS source ↗
Commodities
PrimarySilver, Copper
SecondaryMolybdenum, Gold
TertiaryBarium-Barite
Commodity typeB
Deposit
Deposit typeskarn-related porphyry copper; Disseminated, replacement, and vein
Model58: Porphyry Cu, skarn-related
Deposit sizeS
Orebody formDisseminated, replacement, and vein, Tabular
Ore controlgranodiorite contact, intrusive veins, fractures
Materials
Ore mineralsChalcopyrite, Bornite, Chalcocite, Chrysocolla, Barite, Malachite
GangueQuartz
Geology
Host rockLimestone,Shale,Chert,Quartzite,Granodiorite
Associated rockDiorite
StructureRegular sets of joints, fractures, and faults cut the granodiorite stock.
AlterationSilicification generally accompanies mineralization.
Economic & production
Development statusPast Producer
Production years1913-1930; 1952-1957
First production1913
Discovery year1885
Identification
Deposit ID10310521
Alternate namesBluebird, Phase 2 Area, Nevada-Belleview, Phase 1 Area, Marshall Group, Helen Smith, old Marshall (Nevada-Bellevue) Mine Area, Helen B. Smith, Banner Fissure Zone, Brooklyn Zone
RegionNA
Data scoreA
Coordinates41.78056, -114.77639
References
Smith, R.M. (1976) Mineral Resources of Elko Co., Nev: USGS OFR 76-56, P 39-45Schrader, F.C. (1935) The Contact Mining District, Nevada: USGS Bull. 847-A.Hope, R.A. & Coats, R.R. (1976) Prelim. Geologic Map of Elko Co., Nev: USGS OFR 76-779Granger, A.E., et. al. (1957) Geology and Mineral Resources of Elko Co., Nevada: Nevada Bur. Mines Bull. 54.LaPointe, D.D., Tingley, J.V., and Jones, R.B., 1991, Mineral resources of Elko County: Nevada Bureau of Mines and Geology Bulletin 106, 236 p.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.Golden Phoenix Minerals, Inc. press release, 12/7/2004.Schrader, F.C. (1912) A Reconn. Of The Jarbidge, Contact, And Elk Mt. Mining Districts, Elko Co., Nevada: USGS Bul 497Steininger, R. C., 2000, Western United States; SEG Newsletter, April issue, p. 38.Coats, R.R., 1987, Geology of Elko County Nevada: Nevada Bureau of Mines and Geology Bulletin 101, 112 p.Wendt, C.J., and Albino, G.V., 1992, Porphyry copper and related occurrences in Nevada: Nevada Bureau of Mines and Geology, Map 100, 8 p. and 1 plate.Lane, T.A. et al, 2010, Pre-feasibility Study Update for the Contact Copper Project, Elko County, Nevada, USA: NI 43-101 Technical Report, October 1, 2010, 161 pages.