Commodities
PrimaryCopper
TertiaryGold, Platinum, Molybdenum, Zinc, Lead
Commodity typeM
Deposit
Model53: Porphyry Cu
Deposit sizeS
Orebody formSTOCKWORK
Ore controlEmplacement Of Stock Controlled By Mccoy Creek Fault
Materials
Ore mineralsChalcocite, Chalcopyrite, Galena, Gold, Molybdenite, Pyrite, Sphalerite
GangueBiotite, Calcite, Chlorite, Plagioclase, Quartz, Sericite
Geology
Host rockDiorite · Mccoy Creek Stock
Associated rockAndesite · Ohanapecosh Formation;Ohanapecosh Formation;Ohanapecosh Formation;Ohanapecosh Formation
Tectonic settingCascade Volcanic Arc
AlterationPotassic, Phyllic, Propylitic
Economic & production
Development statusPast Producer
Discovery year1903
Identification
Deposit ID10047836
MRDS IDM700162
Alternate namesMccoy Creek, Lucky Break, Primary Gold
RegionNA
Data scoreB
Coordinates46.36064, -121.79007
References
MOEN, W.S., 1977, ST. HELENS AND WASHOUGAL MINING DISTRICTS OF THE SOUTHERN CASCADES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES INFORMATION CIRCULAR 60. P. 17, 30-31.HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 154, 155.HOLLISTER, V.F., 1979, PORPHYRY COPPER-TYPE DEPOSITS OF THE CASCADE VOLCANIC ARC, WASHINGTON: MINERALS SCIENCE AND ENGINEERING, V. 11, P. 25.LINK, J.E., 1985, GOLD AND COPPER MINERALIZATION IN THE MCCOY CREEK DISTRICT, SKAMANIA COUNTY, WASHINGTON: PULLMAN, WASHINGTON STATE UNIVERSITY, M.S. THESIS, 176 P.MOEN, 1977, P. 30