File:Penn caseyville 2-2.jpg
Original file (2,985 × 3,452 pixels, file size: 2.38 MB, MIME type: image/jpeg)
Figure 2-2. Graphic columns of the Caseyville type section and three reference sections. Column 1 after Lee (1916). Used courtesy of the Kentucky Geological Survey. Columns 2 to 4 from Kosanke et al. (1960); Palmer and Dutcher (1979) and unpublished field notes by W.J. Nelson and J.T. Popp; and Nelson and Weibel (1996) and unpublished field notes by W.J. Nelson, respectively. Copyright © 1960, 1979, and 1996 University of Illinois Board of Trustees.
Click on a date/time to view the file as it appeared at that time.
|current||16:14, 20 July 2020||2,985 × 3,452 (2.38 MB)||Jennifer.Obrad|