Sustainable growth in America‘s heartland; 3-D geologic maps as the foundation

Central Great Lakes Geologic Mapping Coalition; Illinois State Geological Survey; Indiana Geological Survey; Michigan Geological Survey Division; Ohio Division of Geological Survey; U. S. Geological Survey

Abstract:

The central Great Lakes states of Illinois, Indiana, Michigan, and Ohio constitute one of the most productive and economically important regions in the country--America‘s heartland. The agriculture, industry, business, recreation, and ecology of these states are based on a common geologic heritage. During the last 1.8 million years, glaciers repeatedly advanced and retreated across the region, leaving behind a thick, complex blanket of intermixed layers of mud, clay, silt, sand, and gravel. Decisionmakers need knowledge of the glacial deposits--their characteristics, three-dimensional distribution, and thickness. To provide this knowledge, a coalition of state and federal geological surveys has formed to conduct the necessary studies in these four states to depict the three-dimensional nature of these glacial deposits and to interpret these data in cooperation with the user community for specific societal needs.

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USGS Numbered Series

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4411

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Central Great Lakes Geologic Mapping Coalition; Illinois State Geological Survey; Indiana Geological Survey; Michigan Geological Survey Division; Ohio Division of Geological Survey; U. S. Geological Survey

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ENGLISH

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vi, 17 p. :col. ill., col. maps ;22 x 28 cm.

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U.S. Geological Survey,

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Circular

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CIR

Citation Series Number:

1190

Citation Search Results Text:

Sustainable growth in America‘s heartland; 3-D geologic maps as the foundation; 1999; CIR; 1190; Central Great Lakes Geologic Mapping Coalition; Illinois State Geological Survey; Indiana Geological Survey; Michigan Geological Survey Division; Ohio Division of Geological Survey; U. S. Geological Survey