File:Underground water resources of Iowa (1912) (14583322800).jpg

Identifier: undergroundwater00nort (find matches)
Title: Underground water resources of Iowa
Year: 1912 (1910s)
Authors: Norton, William Harmon, b. 1856 Hendrixson, Walter Scott, 1859- (from old catalog) joint author Simpson, Howard E. (Howard Edwin), 1874-1938, joint author Meinzer, Oscar Edward, 1876- (from old catalog) joint author Iowa. Geological survey. (from old catalog)
Subjects: Water-supply
Publisher: Washington, Govt. print. off.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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ranite notedin a drillers log at 71 feet above sea level may well be quartzite, heresunk nearly 1,500 feet below its elevation at Baraboo, 75 miles east.Granite reported at Mason City and Emmetsburg is not confirmedby drillings of any crystalline rock in the sample preserved. At CedarRapids an intensely hard, sdiceous rock of reddish color was struckat 1,417 feet below sea level and penetrated for a distance of 75 feet;but at Tipton, in an adjacent county, a well drilled to 1,886 feet belowsea level failed to discover quartzite or any other crystalline rock.At Burlington the reported occurrence of quartzite (?) and slateat the bottom of the Crapo Park well, 2,430 feet deep (1,745 feet belowsea level), is not fully confirmed by the drillings, as the reddishsiliceous chips show no signs of fracture across grain and cement, 62 UISTDEEGROUND WATEE EESOURCES OF IOWA. and the slate, though an mdurated shale, is accompanied withchips of sandstone of Cambrian type. In the not far distant deep
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well at Aledo, 111., no crystalline rock was found, although a depth of3,000 feet was attained. CAMBEIAlSr SYSTEM. 63 ALGONKIAN (?) SYSTEM.RED CLASTIC SERIES. Certain deep wells of Iowa reach red sandstones beneath Cambrianterranes. Like the, red sandstones of the deep wells of Minnesota,the red sandstones of Iowa seem to be dry, and they may be of Algon-kian age. At Tipton the drill reached these red rocks at 1,435 feetbelow sea level, or about the level at which quartzite occurs at CedarRapids, and penetrated them for 431 feet to the bottom of the drillhole. SANDSTONES WITH INTRUSIVE SHEETS. The deep well at Hull, in northwestern Iowa, encountered, at 755feet from the surface (678 feet above sea level), the first of six bedsof quartz porph3^ry intercalated between saccharoidal sandstones,the entire series reaching to a depth of 1,228 feet from the surface(205 feet above sea level). In the absence of any physical or lithologic characteristics deter-mining the age of the sandstones, t

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