Description
Logan, (A Prospector)
Commodities
PrimaryGold, Silver
TertiaryArsenic, Iron
Commodity typeM
Deposit
Model172: Carbonate-hosted Au-Ag
Deposit sizeM
WorkingsSurface/Underground
Ore controlOre Is In And Adjacent To A Thrust Fault Separating Lower Plate Roberts Mtn Fm From Upper Plate Vinini Fm.
Materials
Ore mineralsCerargyrite
GangueBarite, Quartz, Sericite
Geology
Host rockQuartzite · Pogonip Group;Pogonip Group;Vinini Formation;Vinini Formation;Roberts Mountain Formation;Roberts Mountain Formation
Associated rockQuartz Monzonite,Mafic Intrusive Rock · Northumberland Intrusive
StructureReg.Struct: Major Thrust Sheets
Tectonic settingNorthumberland Caldera Ring Fracture Zone
AlterationSilicification, Sericitization, Jasperoid, Argillic
Economic & production
Development statusProducer
Discovery year1866
Identification
Deposit ID10106925
MRDS IDM231715
Alternate namesBlue Bell, Monitor, Last Chance Group, Cyprus-Northumberland Mine
RegionNA
Data scoreA
Coordinates38.95937, -116.85898
References
KLEINHAMPL, F.J. AND ZIONY, J.I., 1984085, NBMG BULL 99 A AND B.NBMG BULL 50.UNPUBLISHED NOTES, NBMG FILE42,ITEM 2NEVADA MINING ASSOCIATION NEWSLETTER, OCT., 1980.FIELD EXAMINATION OF THE PROPERTY, AND DISCUSSION BETWEEN L.J. GARSIDE AND H.F.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 ABS.-CARD. SECTIONMCKEE, E.H., 1974, NBMG REPROT 19MOTTER, J.W. AND CHAPMAN, P.E., 1984, AEG FIELD TRIP GUIDEBOOK.OTT, L.E., 1983, GEOL. AND OPELICALIZATION 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, 1994, MI-1993KLEINHAMPL AND ZIONY (1984-5), NBMG MI-1987. NBMG MI-19931981 FIELD EXAMINATION AND DISCUSSION BETWEEN L.J. GARSIDE AND H.F. BONHAM,JR.,MAY,JULY,1981. NBMG MI-1993