University of Illinois Urbana-Champaign

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Showing 6841–6870 of 9,854 items
Thumbnail for Gumbotil, accretion-gley, and the weathering profile
Gumbotil, accretion-gley, and the weathering profile
Frye, John Chapman; Willman, Harold Bowen; Glass, Herbert David

Thumbnail for Visual estimates of grain size distribution in some Chester sandstones
Visual estimates of grain size distribution in some Chester sandstones
Swann, David Henry; Fisher, Robert W.; Walters, Mathias J.