Nevada · Nye County
Producer

Northumberland Mine

Nye County, Nevada, United States
SilverGoldBarium-BariteIronArsenic
⌖ Show on mapUSGS source ↗
Description

A prospector named Logan

Commodities
PrimarySilver, Gold
SecondaryBarium-Barite
TertiaryIron, Arsenic
Commodity typeB
Deposit
Deposit typevein, disseminated, epithermal\n
Model172: Carbonate-hosted Au-Ag173: Sediment-hosted Au
Deposit sizeM
Orebody formtabular to irregular
Ore controlOre is in and adjacent to a thrust fault separating lower plate Roberts Mtn Fm from upper plate Vinini Fm. Calcareous argillite bed is intruded by felsitic porphyry dikes.
Materials
Ore mineralsPyrargyrite, Cerargyrite, Arsenopyrite, Gold, Scorodite, Quartz, Sericite, Barite
Geology
Host rockShale,Quartzite,Chert,Argillite,Limestone · "Pogonip Group", "Vinini Fm", "Roberts Mountain Fm"
Associated rockQuartz Monzonite,Porphyry · Northumberland intrusive
StructureMajor thrust sheets have affected the rocks. A Jurassic granodioritic stock has domed the country rocks., Silicified horizons of the Pogonip group rocks have been extensively fractured and microfractured.
Tectonic settingNorthumberland caldera ring fracture zone
Alterationsilicification, sericitization, jasperoid, argillization
Economic & production
Development statusProducer
Production years1860s-1891\n1939-1942\n1981-1988\n
First production1860
Last production1988
Discovery year1866
Identification
Deposit ID10310362
MRDS IDM231715
Alternate namesBlue Bell, Monitor, Last Chance Group, Cyprus-Northumberland Mine
RegionNA
Data scoreA
Coordinates38.95826, -116.84675
References
Kleinhampl, F.J. and Ziony, J.I., 1984, NBMG Bull 99-A and B.Kral, V. E., 1950, NBMG Bull 50.Unpublished notes, Nbmg mining district file 42, Item 2.Nevada Mining Association Newsletter, Oct., 1980.Field examination of the property, and discussion, L.J. Garside and H.F. Bonham, Jr.,NBMG, May, July, 1981.Smith, P. and Bentz, J., 1981, NBMG Field Examination.Tingley, J.V. and Quade, Jack, 1986, NBMG OFR 86-14.Goldstein, I.J., 1973, Gold Mineralization at the Northumberland Gold Mine, Nye Co., NV; GSA Abstr. Poster sessionMcKee, E.H., 1974, NBMG Report 19Motter, J.W. and Chapman, P.E., 1984, AEG Field Trip Guidebook.Ott, L.E., 1983, Geol. and Mineralization at Northumberland Gold Mine, Nye Co. Nv; MS Thesis; Montana College of Mineral Science and Technology.NBMG MI-1987NBMG Mining District File 242, news Clippings.NBMG, MI-79 thru MI-84, MI-86 thru MI-03Long, 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.NBMG Map 91, 1st, 2nd, 3rd.Amer. Mines (1989), 1989 thru Amer. Mines (2001), 2000websites - Newmont and NewWest Resources Group.