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Lithostratigraphy for Quaternary glacial deposits: “If it ain’t broke, don’t fix it!”,

Journal article
Authors Mark D. Johnson
Carrie E. Jennings
Howard C. Hobbs
Published in GSA Today
Volume 19
Issue 9
Pages 15-15
Publication year 2009
Published at Department of Earth Sciences
Pages 15-15
Language en
Keywords lithostratigraphy quatrnary
Subject categories Earth and Related Environmental Sciences, Quaternary geology


(A response to an article by Räsänen) Räsänen and others (2009) claim that lithostratigraphic classification of Quaternary glacial deposits is so problematic that it is time to use allostratigraphy instead. Our immediate response from a Midwest perspective is—what problems? Formal lithostratigraphic classification of glacial deposits works. Since its initial use to define Pleistocene units in the Midwest (Willman and Frye, 1970), there has never been a serious reason to question this practice. Indeed, formal lithostratigraphies have been progressively established in most Midwestern states.

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