Search results

• 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
• 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
• 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
• 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
• Historical:Mt. Rorah Coal Member
  ...e part of southern Illinois, but it is seldom over 2 feet thick, generally no more than a few inches. ...nnsylvanian rocks of Illinois as of 1956: Illinois State Geological Survey Circular 217, 14 p.
  2 KB (230 words) - 15:43, 27 January 2017
• Historical:Tioga Bentonite Bed
  ...widely present in Illinois 10-30 feet below the top of the formation, but no outcrops have been found (Meents and Swann, 1965), except recently in a qua ...imestone (Devonian) of southern Illinois: Illinois State Geological Survey Circular 389, 34 p.
  2 KB (265 words) - 17:34, 9 January 2017
• Historical:Pope Creek Coal Member
  ...Coal of southern 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 (262 words) - 19:51, 27 January 2017
• Dekoven Coal Member
  ...coal” or “No. 6.” In addition, Lee revised the Dekoven to Western Kentucky No. 7, which is the current informal usage. Butts (1925) was the first author ...ucky. In Illinois, some authors called the Davis and Dekoven the No. 2 and No. 3 coals, respectively.
  8 KB (1,170 words) - 16:31, 9 February 2022
• Historical:Farmington Shale Member
  ...in most of the state. It generally occurs immediately above the Danville (No. 7) Coal Member, but in several places a dark gray, very impure limestone, ...nnsylvanian rocks of Illinois as of 1956: Illinois State Geological Survey Circular 217, 14 p.
  2 KB (268 words) - 22:00, 24 January 2017
• Historical:Jamestown Coal Member
  ...Member (VI), which is an important commercial coal in Indiana, and to the No. 12 coal in western Kentucky. ...nnsylvanian rocks of Illinois as of 1956: Illinois State Geological Survey Circular 217, 14 p.
  2 KB (268 words) - 16:14, 25 January 2017

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