Property:Caption
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Figure 4-68. Diagram modified from Willman and Payne (1942) illustrating the relationship of Spring Lake Coal to adjacent units. Copyright © 1942 University of Illinois Board of Trustees. +
Figure 4-69. Graphic log based on core from Peabody Energy borehole no. 15-H7, sec. 15, T 6 N, R 8 W, Sullivan County, Indiana, the reference section for the Bucktown Coal Member of previous authors. After Willman and Payne (1942). Copyright © 1942 Illinois State Geological Survey. +
Figure 4-7. Graphic log of Indiana Geological Survey borehole SDH-306 in sec. 2, T 2 S, R 7 W, Pike County, Indiana. Data from Hasenmueller and Ault (1991). This core is the reference section for the underlined members. © University of Illinois Board of Trustees. +
Figure 4-70. Graphic log of part of the core from Arch Minerals borehole 57 in sec. 14, T 6 S, R 4 W, Perry County, Illinois, the type section of the Percy Limestone Member (new to this report). © University of Illinois Board of Trustees. +
Figure 4-71. Graphic column at Burning Star No. 4 Mine showing the Percy Limestone Member. Modified from Palmer and Dutcher (1979). Copyright © 1979 University of Illinois Board of Trustees. +
Figure 4-72. Correlations between Illinois and Missouri, with special reference to the Higginsville (Missouri) and Percy (Illinois) Limestone Members. Left column © University of Illinois Board of Trustees. Right column modified from Gentile and Thompson (2004). Used with permission of the Missouri Geological Survey. +
Figure 4-73. Five well logs illustrating the Walshville channel and Walshville Member in Franklin County, southern Illinois. Well 2 is the type log for the Walshville Member. © University of Illinois Board of Trustees. +
Figure 4-74. Graphic log of the Madison Coal Corp. No. 25 borehole from sec. 12, T 8 S, R 3 E, Williamson County, Illinois, the reference section for the Herrin Coal Member. © University of Illinois Board of Trustees. +
Figure 4-75. Photograph illustrating the great thickness of the Herrin Coal close to the Walshville channel. This photograph was taken circa 1915 in the Old Ben No. 9 underground mine near West Frankfort in Franklin County, Illinois. Wearing a soft cap with open-flame carbide lamp and smoking a pipe, the miner is undercutting the coal seam in preparation for drilling shot holes and blasting with black powder. Photograph donated to ISGS by the Illinois Mining Institute. +
Figure 4-76. Hand specimen of “blue band.” Photograph 2008 by Scott D. Elrick. © University of Illinois Board of Trustees. +
Figure 4-77. The “blue band” at a site where the Herrin Coal is reduced to thin streaks of coal, box cut at the Francisco Mine, Gibson County, Indiana. Photograph 2010 by Scott D. Elrick. © University of Illinois Board of Trustees. +
Figure 4-78. Graphic log of Freeman Coal Company borehole No. 06-01-72 drilled in sec. 16, T 3 S, R 2 E, Jefferson County, Illinois. This core serves as a reference section for the Energy Shale and Anna Shale Members. © University of Illinois Board of Trustees. +
Figure 4-79. Lens of Energy Shale sharply truncated by Anna Shale in the Orient No. 4 underground mine, Williamson County, Illinois. Photograph 1976 from ISGS files. The geologist is Christopher Ledvina. © University of Illinois Board of Trustees. +
Figure 4-8. Graphic log of part of the Snow Hill Coal Corp. Talleydale Mine boring no. 1, a reference section for the Seelyville Coal Member. Location is in sec. 20, T 13 N, R 9 W, Vigo County, Indiana. © University of Illinois Board of Trustees. +
Figure 4-80. Thin lens of Energy Shale truncated with an angular contact by the overlying Anna Shale at the Orient No. 4 underground mine, Williamson County, Illinois. Laminations in the Energy Shale can be seen on the left side of the photograph. The knobby lower surface of the Brereton Limestone can be seen at the top of the image. Approximate height of view is 5 ft (1.5 m). Photograph 1976 from ISGS files. © University of Illinois Board of Trustees. +
Figure 4-81. Strongly jointed, sheety Anna Shale in the roof of the Orient No. 4 underground mine, Williamson County, Illinois. Photograph 1976 from ISGS files. Brunton compass for scale. © University of Illinois Board of Trustees. +
Figure 4-9. Composite section for west-central Illinois. After Wanless (1957), with current names and correlations to Indiana, Kentucky, and southern Illinois. © University of Illinois Board of Trustees. +
Plate 4-1. Generalized chart showing named members and beds of the Carbondale Formation. All are members unless “bed” is specified. © University of Illinois Board of Trustees. +