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2.0 Drill hole ability FeiOi Avail ahility AliOi Drill hole amygdules assay data Basalt Drill hole blue Basalt blue-gray brown Clay cent coarse-grained Columhia River basalt contains Coordinates derived from basalt derived from granodiorite Description Igni Drill hole logs Elevation feet ft feet Qp granite gneiss granodiorite and related gravel gray and yellow gray Clay green nontronite halloysite hole Ol Idaho ilmenite iron oxide iron-stained kaolin kaolinite Kootenai County Latah County Latah formation light-gray limonite Clay logs and assay logs and results mica micaceous Clay muscovite nontronite Olson deposit—Continued Forma palagonitic Palouse formation Clay pink-gray pinkish-gray plastic Clay quartz residual clay derived residual from basalt residual from granite residual from granodiorite results of assays Sample unit Igni sandy Clay semidecomposed slightly sandy Soil and Palouse Spokane County stained streaks tion Depth feet tion loss Avail transported clay U.S. Bureau unit Sample unit white-streaked yellow and gray yellow Clay yellow-gray
Page 39 - ... Rept. Inv. 4472, 16 p. 106-C 1949, Investigation of Whitehorse limestone deposits, Snohomish County, Washington: US Bur. Mines Rept. Inv. 4510, 9 p. 106-D 1949, Investigation of the Whitechuck travertine deposit near Darrington, Snohomish County, Washington: US Bur. Mines Rept. Inv. 4565, 4 p. 106-E 1955, Cowlitz clay deposits near Castle Rock, Washington: US Bur. Mines Rept. Inv. 5157, 60 p. 106-F. Purdy, CP, Jr., 1952, Directory of Washington mining operations 1952: Washington Div. Mines and...
Page 32 - The quarry, opened in 1865, measures 300 feet from north to south and 200 feet from east to west and ranges in depth from 10 to 50 feet. It is drained by occasional pumping. The stripping consists of 2 to 3 feet of drift. Rock structure: The sheets, from 3 to 8 feet in thickness, dip 10° W.
Page 9 - Kaolinite is the most common of the kaolin minerals. The structure of kaolinite consists of a single silica tetrahedral sheet and a single alumina octahedral sheet combined to form the kaolin unit layer (Fig.
Page 36 - The portion of the Pinacate lava flow which extends across the international boundary is a low mesa about 6 miles from north to south and 5 miles from east to west. The mesa rises from 50 to 100 feet above the Tule Desert, and this elevation seems to measure the thickness of the olivine basalt of which it is composed. The margins are but little dissected and seem to be near or at the original limits of the flow. Small cones and craters dot the surface. One of...
Page 39 - ... 224 p. 145 1927, Some feldspathic materials of the Pacific Northwest: US Bur. Mines Rept. Inv. 2794, 13 p. 146 1929, Ochers and mineral pigments of the Pacific Northwest: US Bur. Mines Bull. 304, 74 p. 146-A 1933, Iron oxide mineral pigments of the United States: US Bur. Mines Bull. 370, 198 p. 147. Wilson, Hewitt, and Goodspeed, GE, 1934, Kaolin and china clay in the Pacific Northwest: Washington Univ. (Seattle) Eng. Expt. Sta. Bull. 76, 184 p. 148. Wilson, Hewitt, and Zvanut, FJ, 1936, Properties...
Page 39 - A preliminary report on the clays of Idaho: Idaho, Bur. Mines and Geology. Bull.
Page 7 - Columbia River basalt may range in age from Miocene to Pliocene, it is considered to be product of many closely related eruptions and is classed as one formation. Thickness ranges from several feet at flanks of steptoes and embayments along eastern margin of Columbia Plateau to more than 1 mile near center where subsidence is greatest.
Page 39 - Skinner, KG, and Kelly, HJ, 1949, Preliminary ceramic tests of clays from seven Pacific Northwest deposits: US Bur. Mines Rept. Inv. 4449, 59 p.