Difference between revisions of "File:Penn carbondale 4-63.jpg"
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Latest revision as of 21:58, 23 December 2020
Figure 4-63. Klein Bridge and Greenhouse sections of Willman and Payne (1942), the reference sections for the Vermilionville Sandstone Member. These sections also illustrate the presence of the Energy Shale Member above the Herrin Coal in northern Illinois. Data from Willman and Payne (1942, p. 295). © University of Illinois Board of Trustees.
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