Commodities
PrimaryCopper
Commodity typeM
Deposit
Deposit typePorphyry copper
Model53: Porphyry Cu
Deposit sizeN
Orebody formSTOCKWORK
Ore controlFractures Trending N, Ne, And Nw
Materials
Ore mineralsBornite, Chalcopyrite, Pyrite, Pyrrhotite
GangueMagnetite
Geology
Host rockDacite · Volcanic Rocks Of Mount Persis
Associated rockDiorite · Snoqualmie Batholith
StructureFractures
Tectonic settingCascade Volcanic Arc
AlterationPotassic, Argillic, Propylitic
Economic & production
Development statusProspect
Identification
Deposit ID10048440
MRDS IDMP00027
Alternate namesWeyerhaeuser Land Prospect
RegionNA
Data scoreB
Coordinates47.689, -121.662
References
HOLLISTER, V.F., 1979, PORPHYRY COPPER-TYPE DEPOSITS OF THE CASCADE VOLCANIC ARC, WASHINGTON: MINERALS SCIENCE AND ENGINEERING, V. 11, P. 32-33.Washington Division of Mines and Geology IC 48, 1973, P. 19.TABOR, R.W., FRIZZELL, V.A., JR., BOOTH, D.B., WAITT, R.B., JR., WHETTEN, J.T., AND ZARTMAN, R.E., 1993, GEOLOGIC MAP OF THE SKYKOMISH RIVER 30- by 60-MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATION SERIES MAP I-1963, SCALE 1:100,000.