Mine detail: Northumberland Mine

Previously called 'Blue BellMonitorLast Chance GroupCyprus-Northumberland Mine'

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Location

Lat / long: 38.95937, -116.85898

Resource(M)

Primary: Gold, Silver
Tertiary: Arsenic, Iron
Ore: Cerargyrite
Gangue: Barite, Quartz, Sericite
Discovery year: 1866

Production

Operation type: Unknown
Production size: Medium
Development status: Producer

Geology

Host rock:Pogonip Group;Pogonip Group;Vinini Formation;Vinini Formation;Roberts Mountain Formation;Roberts Mountain Formation
Host type:Quartzite
Associated rock:Northumberland Intrusive
Associated type:Quartz Monzonite,Mafic Intrusive Rock
Structure:Reg.Struct: Major Thrust Sheets
Tectonic:Northumberland Caldera Ring Fracture Zone
Alteration processes:Silicification, Sericitization, Jasperoid, Argillic

References

MRDSM231715
DEP10106925
Reference{Deposit:: KLEINHAMPL, F.J. AND ZIONY, J.I., 1984085, NBMG BULL 99 A AND B.}{Deposit:: NBMG BULL 50.}{Deposit:: UNPUBLISHED NOTES, NBMG FILE42,ITEM 2}{Deposit:: NEVADA MINING ASSOCIATION NEWSLETTER, OCT., 1980.}{Deposit:: FIELD EXAMINATION OF THE PROPERTY, AND DISCUSSION BETWEEN L.J. GARSIDE AND H.F. BONHAM,JR.,NBMG, MAY, JULY, 1981.}{Deposit:: SMITH, P. AND BENTZ, J., 1981, NBMG FIELD EXAMINATION.}{Deposit:: TINGLEY, J.V. AND QUADE, JACK, 1986, NBMG OFR 86-14.}{Deposit:: GOLDSTEIN, I.J., 1973, GOLD MINERALIZATION AT THE NORTHUMBERLAND GOLD MINE, NYE CO., NV; GSA ABS.-CARD. SECTION}{Deposit:: MCKEE, E.H., 1974, NBMG REPROT 19}{Deposit:: MOTTER, J.W. AND CHAPMAN, P.E., 1984, AEG FIELD TRIP GUIDEBOOK.}{Deposit:: OTT, L.E., 1983, GEOL. AND OPELICALIZATION AT NORTHUMBERLAND GOLD MINE, NYE CO. NV; MS THESIS; MONTANA COLLEGE OF MINERAL SCIENCE AND TECHNOLOGY.}{Deposit:: NBMG MI-1987}{Deposit:: NBMG MINING DISTRICT FILE 242, NEWS CLIPPINGS.}{Deposit:: NBMG, 1994, MI-1993}{Production:: KLEINHAMPL AND ZIONY (1984-5), NBMG MI-1987. NBMG MI-1993}{Reserve-Resource:: 1981 FIELD EXAMINATION AND DISCUSSION BETWEEN L.J. GARSIDE AND H.F. BONHAM,JR.,MAY,JULY,1981. NBMG MI-1993}
ReporterWong, George (Roberts, Ralph), La Pointe, D.D. (Tingley, J.V.), Li, Zhiping (Moyer, Lorre A.)