Commodities
PrimaryCopper
SecondarySilver, Gold
TertiaryLead, Zinc, Arsenic
Commodity typeM
Deposit
Model85: Polymetallic veins
Deposit sizeN
Orebody formVEIN
Ore controlFault Zones
Materials
Ore mineralsChalcopyrite, Copper, Galena, Pyrite, Sphalerite
GangueQuartz
Geology
Host rockAndesite
Associated rockDiorite · Spirit Lake Pluton
Tectonic settingCascade Volcanic Arc
Economic & production
Development statusOccurrence
Identification
Deposit ID10047838
MRDS IDM700163
Alternate namesClaims: Chicago Nos. 1 and 2, Chicago Northwest Discovery Nos. 1 and 2
RegionNA
Data scoreB
Coordinates46.30925, -122.08813
References
HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 77.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, 38-39.LANDES, HENRY, THYNG, W.S., LYON, D.A., AND ROBERTS, MILNOR, 1902, THE METALLIFEROUS RESOURCES OF WASHINGTON, EXCEPT IRON: WASHINGTON GEOLOGICAL SURVEY ANNUAL REPORT FOR 1901, V. 1, PT. 2, P. 133-134.