Commodities
PrimaryCopper, Gold, Silver, Molybdenum
Commodity typeM
Deposit
Deposit sizeN
Ore controlMineralization Occurs In A Narrow Shear Zone And In Joint Planes In A 20-40-Ft-Wide Brecciated Zone In A Granodiorite Dike (Patty, 1921, P. 277), And A Breccia Zone As Much As 500 Ft Wide Between Rhyolite And Basalt Is Mineralized (Huntting, 1956, P. 60).
Materials
Ore mineralsBornite, Chalcopyrite, Molybdenite
GanguePyrite, Pyrrhotite, Quartz
Geology
Host rockSandstone
Tectonic settingMineralization Occurs In Shear Zones, Along Joint Planes, And In A Brecciated Zone, Which Suggests Mineralization Took Place Following Deformation Of Metamorphic Rocks And Deposition Of The Overlying Eocene Rocks (Frizzell And Others, 1984, Geol. Map; Huntting, 1956, P. 60).
Economic & production
Development statusOccurrence
Identification
Deposit ID10055948
MRDS IDSP00160
Alternate namesDurrwachter, Liberty Lode
RegionNA
Data scoreB
Coordinates47.42454, -121.25563
References
FRIZZELL, V.A., JR.; TABOR, R.W.; BOOTH, D.B.; ORT, K.M.; WAITT, R.B., 1984, PRELIMINARY GEOLOGIC MAP OF THE SNOQUALMIE PASS 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 84-693, 42 P., 1 PL.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.MILLER, R. B., 1985, THE OPHIOLITIC INGALLS COMPLEX, NORTH-CENTRAL CASCADE MOUNTAINS, WASHINGTON: GEOLOGICAL SOCIETY OF AMERICA BULLETIN, V. 96, NO. 1, P. 27-42.PATTY, E.N., 1921, THE METAL MINES OF WASHINGTON: WASHINGTON GEOLOGICAL SURVEY BULLETIN 23, 366 P.WDGER OF 90-18