Commodities
PrimaryGold
SecondaryPlatinum
Commodity typeM
Deposit
Deposit typeStream Placer
Model119: Placer Au-PGE
Deposit sizeS
Orebody formSTREAM SEDIMENT DEPOSITS
Ore controlStream Hydraulics
Materials
Ore mineralsGold, Hematite, Limonite, Magnetite
Geology
Host rockGravel
Associated rockVolcanic Rock (Aphanitic)
Tectonic settingCascade Volcanic Arc
Economic & production
Development statusPast Producer
Discovery year1895
Identification
Deposit ID10037878
MRDS IDM045077
Alternate namesMcmunn Placer
RegionNA
Data scoreB
Coordinates45.81398, -122.31702
References
PARDEE, J.T., 1929, PLATINUM AND BLACK SAND IN WASHINGTON, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY 1928: U.S. GEOLOGICAL SURVEY BULLETIN 805, P. 6-9.PATTY, E.N., AND GLOVER, S.L., 1921, THE MINERAL RESOURCES OF WASHINGTON, WITH STATISTICS FOR 1919: WASHINGTON GEOLOGICAL SURVEY BULLETIN 21, P. 84-85.MERTIE, J.B., JR., 1969, ECONOMIC GEOLOGY OF THE PLATINUM METALS: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 630, P. 101.HUNTTING, M.T., 1955, GOLD IN WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 42, P. 118.