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Quaternary geologic map of the Chicago 4 degrees x 6 degrees quadrangle, United States

IMAP 1420(NK-16)
By: , , , , and 
Edited by: Gerald M. Richmond
Compiled by: Jerry A. Lineback
https://doi.org/10.3133/i1420(NK16)

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Abstract

The Quaternary Geologic Map of the Chicago 4 degree x 6 degree Quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of the human species. These materials are at the surface of the earth. They make up the 'ground' on which we walk, the 'dirt' in which we dig foundations, and the 'soil' in which we grow crops. Most of our human activity is related in one way or another to these surface materials that are referred to collectively by many geologists as regolith, the mantle of fragmental and generally unconsolidated material that overlies the bedrock foundation of the continent. The maps were compiled at 1:1,000,000 scale.

Suggested Citation

Bleuer, N.K., Mickelson, D.M., Farrand, W.R., Goldthwait, R.P., Fullerton, D.S., 1983, Quaternary geologic map of the Chicago 4 degrees x 6 degrees quadrangle, United States: U.S. Geological Survey IMAP 1420(NK-16), 1 map :col. ;44 x 51 cm., on sheet 74 x 139 cm. folded in envelope 30 x 24 cm., https://doi.org/10.3133/i1420(NK16).

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Quaternary geologic map of the Chicago 4 degrees x 6 degrees quadrangle, United States
Series title IMAP
Series number 1420(NK-16)
Subseries GAUS
DOI 10.3133/i1420(NK16)
Year Published 1983
Language ENGLISH
Description 1 map :col. ;44 x 51 cm., on sheet 74 x 139 cm. folded in envelope 30 x 24 cm.
Scale 1000000
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