Commodities
PrimaryLead, Zinc, Copper, Gold, Silver
Commodity typeM
Deposit
Deposit sizeU
Ore controlMineralization Occurs In A 1.5-Ft-Wide Shear Zone In Granodiorite, In Bands As Much As 8-In-Thick And Which Assay As Much As 30 Oz/Ton Ag (Moen, 1976, P. 167).
Materials
Ore mineralsChalcopyrite, Galena, Sphalerite
GanguePyrite, Quartz
Geology
Host rockTonalite
Tectonic settingThe Snoqualmie Batholith Is Part Of Early Magmatism Of The Cascade Magmatic Arc.
Economic & production
Development statusOccurrence
Identification
Deposit ID10055932
MRDS IDSP00144
Alternate namesSilver Dollar and Copper Plate;Silver DollarCopper Plate, Triple S
RegionNA
Data scoreB
Coordinates47.66814, -121.41953
References
HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.; V. 2, 67 P.LIVINGSTON, V.E., JR., 1971, GEOLOGY AND MINERAL RESOURCES OF KING COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 63, 200 P., 8 PL.MOEN, W.S., 1976, SILVER OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES BULLETIN 69, 188 P.TABOR, R.W.; FRIZZELL, V.A., JR.; BOOTH, D.B.; WHETTEN, J.T.; WAITT, R.B.; ZARTMAN, R.E., 1982, PRELIMINARY GEOLOGIC MAP OF THE SKYKOMISH RIVER 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-747, 31 P., 1 PL.WDGER OR-90-18