Commodities
PrimaryIron
SecondaryChromium, Nickel
Commodity typeM
Deposit
Deposit typeResidual
Model110: Lateritic Ni
WorkingsSurface/Underground
Orebody formBlanket
Materials
Ore mineralsChromite, Magnetite
GangueSerpentine
Geology
Host rockSerpentinite,Conglomerate · "Ingalls Complex", "Swauk Formation"
Tectonic settingIron-Nickel-Chromium deposits (residuum of weathering products) overlie serpentinized ultramafic rocks (Broughton, 1943, p. 9-13) of the Ingalls Complex, a Jurassic ophiolite complex (Miller, 1985, p. 27; Tabor and others, 1982, p. 5-6)
Economic & production
Development statusOccurrence
Identification
Deposit ID10055845
MRDS IDSP00044
Alternate namesNigger Creek Iron, Davenport
RegionNA
Data scoreC
Coordinates47.04078, -120.73917
References
Broughton, W.A., 1943, The Blewett iron deposit, Chelan County, Washington (with preliminary tonnage estimates): Washington Division of Geology RI 10, 21 p.Broughton, W.A., 1944, Economic aspects of the Blewett-cle Elum iron ore zone, Chelan and Kittitas counties, Washington: Washington Division of Geology RI 12, p. 16-20Lamey, C.A., 1950, The Blewett iron-nickel deposit, Chelan County, Washington: U.S. Geological Survey Bulletin 969-D, p. 87-103Huntting, M.T., 1956, Inventory of Wasington minerals-Part II: Washington Division of Mines and Geology Bulletin 37, part II, Vol. 1, p. 194.Miller, R.B., 1985, The ophiolitic Ingalls Comples, north-central Cascade Mountains, Washington: Geological Society of America Bulletin, p. 27-42.Tabor, R.W., Waitt, R.B., Frizzel, V.A., Jr., Swanson, D.A., Byerly, G.R., and Bentley, 1982, Geologic map of the Wenatchee 1:100,000 quadrangele, central Washington: U.S. Geological Survey Map I-1311.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 90-18p. 16.