Washington · Snohomish County
Occurrence

Seacrest

Snohomish County, Washington, United States
CopperMolybdenumNickelChromiumZincLead
⌖ Show on mapUSGS source ↗
Commodities
PrimaryCopper, Molybdenum
SecondaryNickel, Chromium
TertiaryZinc, Lead
Commodity typeM
Deposit
Model53: Porphyry Cu
Deposit sizeU
Orebody formPERVASIVE FRACTURE FILLING, RARELY DISSEMINATED
Ore controlFracturing
Materials
Ore mineralsChalcopyrite, Molybdenite, Pyrite
Geology
Host rockTonalite · Tonalite Of Silver Creek;
Associated rockUltramafic Intrusive Rock · Eastern Melange Belt
StructureTransverse Fractures
Tectonic settingCascade Volcanic Arc
AlterationUbiquitous Hydrothermal Alteration, Propylitic, Weak Potassic
Economic & production
Development statusOccurrence
Identification
Deposit ID10048446
MRDS IDMP00033
Alternate namesSilver Creek, New York
RegionNA
Data scoreC
Coordinates47.95288, -121.41593
References
CHURCH, S.E., TABOR, R.W., AND JOHNSON, F.L., 1983, MINERAL RESOURCE POTENTIAL OF THE GLACIER PEAK ROADLESS AREA, SNOHOMISH COUNTY, WASHINGTON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-1380-C, SCALE 1:50,000.JOHNSON, F.L., DENTON, D.K., IVERSON, S.R., MCCULLOCH, R.B., STEBBINS, S.A., AND STOTELMEYER, R.B., 1983, MINERAL RESOURCES OF THE GLACIER PEAK RARE II AREA (NO. L6031), SNOHOMISH COUNTY, WASHINGTON: U.S. BUREAU OF MINES OPEN-FILE REPORT MLA 75-83, P. 8, 18-19, 36.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. 37.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.HOLLISTER, V.F., 1979, PORPHYRY COPPER-TYPE DEPOSITS OF THE CASCADE VOLCANIC ARC, WASHINGTON: MINERALS SCIENCE AND ENGINEERING, V. 11, P. 22-35.JOHNSON AND OTHERS