File:Underground water resources of Iowa (1912) (14583345530).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

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ey City and one somewhat wider below Daven-port. That part of the wide flood plain of Wapsipinicon Kiver whichhes south of the channel, an area of about 35 squares miles, fallsto Scott County. Across the western part of the county stretches abroad marshy sag once occupied as a temporary channel by theMississippi and now held by an insignificant stream called Mud Creek. GEOLOGY. Buff and bluish dolomitic limestone quarried at Le Claire andbelonging to the Niagara underlies the northern part of the county;higher and younger limestones of Devonian age, of which the Daven-port quarries furnish examples, underlie the drift in Davenport andBlue Grass townships; and shales and sandstones belonging to thePennsylvanian series occupy the extreme southern part of the county.(See PI. XV, p. 670.) 488 UNDERGROUND WATER RESOURCES OF IOWA. UNDERGROUND WATER.PROVINCES. Wapsipinicon flood plain.—Wapsipinicon River, which forms thenorthern boundary of the county, flows over a flood plain whose p.vye/
Text Appearing After Image:
10 Males Figure 5.—Map of western Scott County, showing the ancient channel now occupied by Mud Creek (shownby shading) and the buried Cleona channel (bounded by broken lines). Figures at deep wells (•) indicatethe elevation of the rock surface above sea level. Figiires prefixed by minus sign (—) indicate depthsof wells that did not reach rock. width on the right bank of the stream ranges from half a mile nearDixon to 3 miles at McCausland. On tliis plain alluvial sands andgravels supply abundant water to shallow dug and driven wells. SCOTT COUNTY. 489 Mud Creek channel.—The little stream of Mud Creek drains thenorthern portion of an ancient channel held by several geologists tohave been cut in glacial time by the diverted waters of MississippiRiver. The channel floor is about a mile wide, increasing in widthat the mouths of the valleys of tributary creeks. Ground waterstands high. Much of the area is ill drained and ponds and marshesoccur, especially at the col which crosses

Note About Images