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Quaternary geologic map of the Ottawa 4 degrees x 6 degrees quadrangle, United States and Canada

IMAP 1420(NL-18)
By: , , , , and 
https://doi.org/10.3133/i1420(NL18)

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Abstract

The Quaternary Geologic Map of the Ottawa 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

Fullerton, D.S., Gadd, N.R., Veillette, J., Wagner, P., and Chapman, W., 1993, Quaternary geologic map of the Ottawa 4 degrees x 6 degrees quadrangle, United States and Canada (Version 1.1): U.S. Geological Survey IMAP 1420(NL-18), 1 map :col.; 45 x 48 cm., on sheet 80 x 143 cm., folded in envelope 30 x 24 cm., https://doi.org/10.3133/i1420(NL18).

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Quaternary geologic map of the Ottawa 4 degrees x 6 degrees quadrangle, United States and Canada
Series title IMAP
Series number 1420(NL-18)
Subseries GAUS
DOI 10.3133/i1420(NL18)
Edition Version 1.1
Year Published 1993
Language ENGLISH
Description 1 map :col.; 45 x 48 cm., on sheet 80 x 143 cm., folded in envelope 30 x 24 cm.
Projection Lambert Conformal Conic
Scale 1000000
Online Only (Y/N) Y
Additional Online Files (Y/N) Y
Additional publication details