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• Historical:Colchester Coal Member
  ...Coal Member of the Carbondale Formation, the lowest member, was designated No. 2 by Worthen (1866, p. 59) for the coal in a mine shaft at Highland, Madis The coal has also been called the La Salle (No. 2) Coal or the "Third Vein" coal in northern Illinois.
  3 KB (418 words) - 20:52, 26 January 2017
• Historical:Rock Island Coal Member
  ...ck Island (Worthen and Shaw, 1873, p. 221, 229-232), the name Rock Island (No. 1) Coal came into general use. In western Illinois the Rock Island (No. 1) Coal occurs only in widely scattered areas. It attains a maximum thickn
  3 KB (410 words) - 20:01, 27 January 2017
• Historical:Berry Clay Member
  ...cretion-gley, and the weathering profile: Illinois State Geological Survey Circular 295, 39 p.<br> ...eathered zones of the drift-sheets of Illinois: Journal of Geology, v. 38, no. 1, p. 28-53.<br>
  3 KB (484 words) - 22:23, 3 January 2017
• Historical:Winnebago Formation
  ...ege Section and adjacent exposures and Northwest Tollway borings No. 2 and No. 5 (Kempton, 1963, p. 38). The type section is in the Rock Valley College S ..., Glacial Tills of Northwestern Illinois: Illinois State Geological Survey Circular 437, 47 p.<br>
  5 KB (697 words) - 20:55, 12 January 2017
• Galatia Channel:Herrin Coal, Energy Shale, and Walshville Channel
  ...pin, Montgomery, and Sangamon Counties): Illinois State Geological Survey, Circular 540, 40 p., 1 pl.</ref>). ...vestigation of roof and floor strata, longwall demonstration, Old Ben Nine No. 24, prediction of coal balls in the Herrin Coal: Illinois State Geological
  8 KB (1,239 words) - 15:09, 23 August 2023
• Historical:St. David Limestone Member
  ...utheastern Illinois and western Kentucky, it is continuous but is commonly no more than a few inches of very fossiliferous calcareous shale or impure lim ...ulinids. It is almost invariably present where the Springfield-Harrisburg (No. 5) Coal occurs, although the limestone and coal are generally separated by
  2 KB (346 words) - 21:49, 25 January 2017
• Mahomet Sand Member
  ...the DeWitt-McLean County area, Illinois: Illinois State Geological Survey Circular 369, 16 p.<br> ...entral Illinois and its regional relationships: Journal of Geology, v. 53, no. 5, p. 349-359.<br>
  4 KB (528 words) - 22:46, 12 January 2017
• Historical:Rock Branch Coal Member
  ...nd southern Morgan and Sangamon Counties: Illinois State Geological Survey Circular 88, 46 p.
  1 KB (197 words) - 20:20, 24 January 2017
• Historical:Inglefield Sandstone Member
  The sandstone occurs above the Chapel (No. 8) Coal and below the Womac Coal (Andresen, 1961). ...Trivoli Sandstone in the Illinois Basin: Illinois State Geological Survey Circular 316, 31 p.<br>
  2 KB (211 words) - 17:25, 24 January 2017
• Historical:Galum Limestone Member
  It is overlain by the underclay of the Danville (No. 7) Coal and underlain by a few feet of greenish gray shale that separates ...nnsylvanian rocks of Illinois as of 1956: Illinois State Geological Survey Circular 217, 14 p.
  2 KB (206 words) - 22:06, 24 January 2017
• Historical:Dykersburg Shale Member
  ...) Coal reserves of southeastern Illinois: Illinois State Geological Survey Circular 431, 25 p.
  2 KB (238 words) - 21:50, 25 January 2017
• Anvil Rock Sandstone Member
  ...cuts through several underlying stratigraphic units, including the Herrin (No. 6) Coal. Some channels are only a few hundred feet across, but the major o ...nvil Rock Sandstone of southern Illinois: Illinois State Geological Survey Circular 256, 49 p.<br>
  4 KB (474 words) - 16:56, 25 January 2017
• Scottville Limestone Member
  ...nd southern Morgan and Sangamon Counties: Illinois State Geological Survey Circular 88,46 p.<br> ...nnsylvanian rocks of Illinois as of 1956: Illinois State Geological Survey Circular 217, 14 p.
  2 KB (276 words) - 20:48, 24 January 2017
• Belgium Member
  ...the same exposure as the Hegeler Till Member, in the Harmattan Strip Mine No. 2 (SE SW SW 34, 20N-12W). ...ld glacial drift near Danville, Illinois: Illinois State Geological Survey Circular 457, 16 p.<br>
  2 KB (287 words) - 22:42, 12 January 2017
• Chapel Coal Member
  The Chapel (No. 8) Coal Member of the Modesto Formation (Kosanke et al., 1960, p. 38). It previously was called Trivoli (No. 8) coal (Wanless, 1931a, p. 181-182, 190, 192).
  3 KB (413 words) - 18:14, 24 January 2017
• Historical:Romeo Member
  ...nodules in the type locality, but in many exposures it exhibits little or no chert. ...n northeastern and northwestern Illinois: Illinois State Geological Survey Circular 479, 55 p.
  2 KB (249 words) - 20:42, 4 January 2017
• Galatia Channel:Turner Mine Shale Member
  ...osing this contact have been active within the last 40 years. In the Eagle No. 2 underground mine in Gallatin County, Illinois, Dykersburg Shale occurred ...pin, Montgomery, and Sangamon Counties): Illinois State Geological Survey, Circular 540, 40 p., 1 pl.</ref>). Similar erosion evidently affected the Dykersburg
  3 KB (509 words) - 20:54, 23 August 2023
• Historical:Delwood Coal Member
  ...Coal of western Illinois, the Upper Block Coal Member of Indiana, and the No. 3 (Ice House) coal of western Kentucky. ...nnsylvanian rocks of Illinois as of 1956: Illinois State Geological Survey Circular 217, 14 p.<br>
  2 KB (266 words) - 16:05, 27 January 2017
• Galatia Channel:Other Channels
  ...ntegrated drainage. We have not investigated these channels and will offer no further comments. ...nsylvanian rocks of Indiana: Indiana Geological Survey, Report of Progress No. 23, 59 p.</ref>) mapped an area near Terre Haute, Indiana, where the Sprin
  3 KB (493 words) - 19:38, 23 August 2023
• Berry Clay Member
  ...cretion-gley, and the weathering profile: Illinois State Geological Survey Circular 295, 39 p.<br> ...eathered zones of the drift-sheets of Illinois: Journal of Geology, v. 38, no. 1, p. 28-53.<br>
  4 KB (546 words) - 21:15, 12 January 2017

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