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Quaternary geologic map of the Sudbury 4 degree by 6 degree quadrangle, United States and Canada

IMAP 1420(NL-17)

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Abstract

The Quaternary Geologic Map of the Sudbury 4 degrees x 6 degrees 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.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Quaternary geologic map of the Sudbury 4 degree by 6 degree quadrangle, United States and Canada
Series title:
IMAP
Series number:
1420(NL-17)
Edition:
Version 1.1
Year Published:
2004
Language:
ENGLISH
Description:
map
Scale:
0