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• Bellair 900
  99 bytes (11 words) - 20:09, 21 October 2019

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• Historical:Ancell Group
  ...most of Illinois, and they vary in thickness from a few feet to as much as 900 feet.
  2 KB (315 words) - 22:20, 20 December 2016
• Ancell Group
  ...most of Illinois, and they vary in thickness from a few feet to as much as 900 feet.
  3 KB (387 words) - 18:17, 12 January 2017
• Historical:Precambrian Erathem
  ...the unconformity on the Precambrian rocks represents an interval of 600 to 900 m.y. <br>
  6 KB (888 words) - 15:06, 30 September 2019
• Precambrian Erathem
  ...the unconformity on the Precambrian rocks represents an interval of 600 to 900 m.y. <br>
  7 KB (941 words) - 14:26, 22 October 2019
• Bucktown Coal Member
  ...ucktown in its type area is Peabody Energy’s borehole No. 15-H7, drilled 1,900 ft (579.1 m) from the north line, 2,150 ft (655.3 m) from the west line, se
  7 KB (1,034 words) - 16:39, 9 February 2022