Mine detail: Quartz Creek

Previously called 'RainyWestern States Copper'

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Location

Lat / long: 47.57037, -121.55564

Resource(M)

Primary: Molybdenum, Copper, Gold, Silver
Tertiary: Arsenic, Uranium, Tungsten
Ore: Bornite, Brannerite, Chalcopyrite, Covellite, Molybdenite, Pyrite, Pyrrhotite, Scheelite
Gangue: Biotite, Chlorite, Magnetite, Plagioclase, Quartz, Sericite, Tourmaline
Orebody form: BRECCIA PIPE, STOCKWORK

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
Production years: 1942, 1953-1955

Geology

Host rock:Snoqualmie Batholith, Northern Phase;Snoqualmie Batholith, Northern Phase
Host type:Tonalite
Structure:Strong E-W Sheeting
Tectonic:Cascade Volcanic Arc
Alteration processes:Potassic, Propylitic, Silica Flooding

References

MRDSD000663
DEP10008481
Reference{Deposit:: DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 119.}{Deposit:: GRANT, A.R., 1969, CHEMICAL AND PHYSICAL CONTROLS FOR BASE METAL DEPOSITION IN THE CASCADE RANGE OF WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 58, P. 80-81.}{Deposit:: GRANT, A.R., 1976, REPORT OF EVALUATION, MINERAL RESOURCE ANALYSIS STUDY ON UNITED STATES FOREST SERVICE LAND, STATE OF WASHINGTON: PREPARED FOR U.S. FOREST SERVICE - REGION 6, CONTRACT NO. 004724N, P. 45.}{Deposit:: TABOR, R.W., FRIZZELL, V.A., JR., BOOTH, D.B., WHETTEN, J.T., WAITT, R.B., JR., AND 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, SCALE 1:100,000.}{Deposit:: CHURCH, S.E., LEHURAY, A.P., GRANT, A.R., DELEVAUX, M.H., AND GRAY, J.E., 1986, LEAD-ISOTOPIC DATA FROM SULFIDE MINERALS FROM THE CASCADE RANGE, OREGON AND WASHINGTON: GEOCHIMICA ET COSMOCHIMICA ACTA, V. 50, P. 317-328.}{Reserve-Resource:: GRANT, 1976}
ReporterKing, Robert U., Peterson, Jocelyn A.