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Definition of Wisconsinan Stage
John Chapman Frye
Geological Survey (U.S.)
出版
U.S. Government Printing Office
, 1968
URL
http://books.google.com.hk/books?id=1q-eWN2xkpYC&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN
註釋
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.
