File:Penn carbondale 4-64.jpg
Figure 4-64. Reference section for the Vermilionville Sandstone Member. Data from Wanless (1957, p. 207, geologic section 44). Location is a ravine in E1/₂ SE1/₄, sec. 8, T 6 N, R 3 E, Fulton County, Illinois. © University of Illinois Board of Trustees.
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