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Definition of Wisconsinan Stage : the Wisconsinan Stage and its Altonian, Farmdalian, Woodfordian, Twocreekan, and Valderan Substages are described as time-stratigraphic units of the Pleistocene of Illinois and Wisconsin / by John C. Frye, H.B. Willman, Meyer Rubin, and Robert F. Black.

Record details

  • Physical Description: 1 online resource (iii, 22 pages) : illustrations.
  • Publisher: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1968.
  • Distributor: Washington : United States Government Printing Office

Content descriptions

General Note: Title from title screen (viewed September 15, 2014).
Bibliography, etc. Note: Includes bibliographical references (pages 20-22).
Subject: Geology, Stratigraphic > Pleistocene.
Geology > Nomenclature.
Geology > Illinois.
Geology > Wisconsin.

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