Washington · Chelan County
Occurrence

Blewett Iron

Chelan County, Washington, United States
IronNickelChromium
⌖ Show on mapUSGS source ↗
Commodities
PrimaryIron, Nickel, Chromium
Commodity typeM
Deposit
Deposit sizeN
Ore controlThe Blewett Iron Deposits Are Laterite Deposits. Many Of The Laterites Were Eroded From Their Nearby Source Area And Deposited Form A Sequence Of Conglomerates And Fine-Grained, Iron-Rich Beds. The Iron And Chromium Were From Iron In Silicate Minerals, Magnetite-Hematite, And Chromite Weathered From The Serpentinite. Nickel Is From Silicates Released During Laterization (Deep Weathering) Of The Serpentinite (Broughton, 1943, P. 10).
Materials
Ore mineralsChromite, Hematite, Magnetite
GangueSerpentine
Geology
Host rockSerpentinite
Tectonic settingSeveral Iron-Nickel-Chromium Lateritic Deposits 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 ID10055839
MRDS IDSP00037
Alternate namesBlewett, Washington Nickel
RegionNA
Data scoreB
Coordinates47.39232, -120.65923
References
WDGER OFR 90-18.BROUGHTON, W.A., 1943, THE BLEWETT IRON DEPOSIT, CHELAN COUNTY, WASHINGTON (WITH PRELIMINARY TONNAGE ESTIMATES): WASHINGTON DIVISION OF GEOLOGY REPORT OF INVESTIGATIONS 10, 17P., 1 PL.BROUGHTON, W. A., 1944, ECONOMIC ASPECTS OF THE BLEWETT-CLE ELUM IRON ORE ZONE, CHELAN AND KITTITAS COUNTIES, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY REPORT OF INVESTIGATIONS 12, 42 P., 7 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, 67P.LAMEY, C. A., 1950, THE BLEWETT IRON-NICKEL DEPOSIT, CHELAN COUNTY, WASHINGTON: U.S. GEOLOGICAL SURVEY BULLETIN 969-D, P. 87-103, 2 PL.LUPHER, R.L., 1944, STRATIGRAPHIC ASPECTS OF THE BLEWETT-CLE ELUM IRON ORE ZONE, CHELAN AND KITTITAS COUNTIES, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY REPORT OF INVESTIGATIONS 11, 63 P., 2 PL.MILLER, R. B., 1985, THE OPHILITIC INGALLS COMPLEX, NORTH-CENTRAL CASCADE MOUNTAINS, WASHINGTON: GEOLOGICAL SOCIETY OF AMERICA BULLETIN, V. 96, NO. 1, P. 27-42.TABOR, R.W.; WAITT, R.B.; FRIZZELL, V.A., JR.; SWANSON, D.A.; BYERLY, G.R.; BENTLEY, R.D., 1982, GEOLOGIC MAP OF THE WENATCHEE 1:100,000 QUADRANGLE, CENTRAL WASHINGTON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATIONS SERIES MAP 1-1311, 1 SHEET, SCALE 1:100,000, WITH 26 P. TEXT.