Commodities
PrimaryGold
SecondarySilver, Copper
Commodity typeM
Deposit
Deposit sizeS
Orebody formSTRATIFORM TO IRREGULAR
Ore controlIgneous Contact With Sediments; Intersection Of Series Of Ne Faults With A Nw Normal Fault.
Materials
Ore mineralsChalcocite, Chalcopyrite
GangueCalcite, Chlorite, Epidote, Garnet, Pyrite, Pyroxene, Quartz, Zeolite
Geology
Host rockLimestone,Chert · Augusta Mountain
Associated rockDiorite · Brown Stock
StructureFaults Localized Stock Emplacement
AlterationStrong Silication
Economic & production
Development statusProducer
Discovery year1981
Identification
Deposit ID10047574
MRDS IDM242947
Alternate namesNBMG Sample Site 669, Echo Bay Mine
RegionNA
Data scoreB
Coordinates40.32462, -117.22233
References
LANE, M.F., 1987, GEOLOGY AND MINERALIZATION OF THE MCCOY SKARN, LANDER CO., NEVADA; UNPUB. PAPER PRESENTED AT 93RD NW MINING ASSOC. CONVENTION, 1987.UNPUB. REPORT BY ECHO BAY MINES, ON FILE AT NBMG, MINING DISTRICT FILE 157.KUYPER, B.A., 1986, GEOLOGY OF THE MCCOY GOLD DEPOSIT, GSN. PRECIOUS METALS SYMPOSIUM PAPER.SCHRADER, F.C., 1934, USGS IC. #10.BONHAM, H.F., 1988, IN NBMG, MI-1987.BONHAM, H.F., 1986, NBMG MAP 91.SMITH, P. AND BENTZ, J., NOV, 1981, NBMG FIELD EXAMINATION REPORT.BONHAM, 1988