Quaternary Geologic Map of the Regina 4 Degrees x 6 Degrees Quadrangle, United States and Canada

IMAP 1420(NM-13)
Prepared in cooperation with the Saskatchewan Research Council and the North Dakota Geological Survey
By: , and 
Edited by: David S. Fullerton



For scientific purposes, the map differentiates Quaternary surficial deposits and materials on the basis of clast lithology or composition, matrix texture or particle size, structure, genesis, stratigraphic relations, engineering geologic properties, and relative age, as shown on the correlation diagram and indicated in the 'Description of Map Units'. Deposits of some constructional landforms, such as end moraines, are distinguished as map units. Deposits of erosional landforms, such as outwash terraces, are not distinguished, although glaciofluvial, ice-contact, fluvial, and lacustrine deposits that are mapped may be terraced. Differentiation of sequences of fluvial and glaciofluvial deposits at this scale is not possible. For practical purposes, the map is a surficial materials map. Materials are distinguished on the basis of lithology or composition, texture or particle size, and other physical, chemical, and engineering characteristics. It is not a map of soils that are recognized and classified in pedology or agronomy. Rather, it is a generalized map of soils as recognized in engineering geology, or of substrata or parent materials in which pedologic or agronomic soils are formed. As a materials map, it serves as a base from which a variety of maps for use in planning engineering, land-use planning, or land-management projects can be derived and from which a variety of maps relating to earth surface processes and Quaternary geologic history can be derived.

Study Area

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Quaternary Geologic Map of the Regina 4 Degrees x 6 Degrees Quadrangle, United States and Canada
Series title IMAP
Series number 1420(NM-13)
DOI 10.3133/i1420(NM13)
Edition Version 1.0
Year Published 2007
Language ENGLISH
Publisher Geological Survey (U.S.)
Contributing office(s) U.S. Geological Survey
Description Report: 39 p.; Map Sheet: 75.5 x 39.5 inches; Downloads Directory
Projection Lambert Conformal Conic
Scale 1000000
Additional Online Files (Y/N) Y
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