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  1. 1

    Ordovician Galena Group (Trenton) of Illinois : structure and oil fields by Bristol, Hubert M.

    Published: Illinois State Geological Survey, 1973
    Description: 38 pages : map ; 28 cm.
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    Ordovician Galena Group (Trenton) of Illinois : structure and oil fields
  2. 2

    Structure of the base of the Mississippian Beech Creek (Barlow) limestone in Illinois by Bristol, Hubert M.

    Published: State Geological Survey, 1968
    Description: 12 pages : maps ; 28 cm.
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    Structure of the base of the Mississippian Beech Creek (Barlow) limestone in Illinois
  3. 3

    Structural geology and oil production of northern Gallatin County and southernmost White County, Illinois by Bristol, Hubert M.

    Published: Illinois State Geological Survey, 1975
    Description: 20 pages : maps ; 28 cm.
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    Structural geology and oil production of northern Gallatin County and southernmost White County, Illinois
  4. 4

    Structure of the top of the Karnak limestone member (Ste. Genevieve) in Illinois by Bristol, Hubert M.

    Published: Illinois State Geological Survey, 1976
    Description: 6 pages : map ; 28 cm.
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    Structure of the top of the Karnak limestone member (Ste. Genevieve) in Illinois
  5. 5

    The Wabash Valley Fault System in southeastern Illinois by Bristol, Hubert M.

    Published: Illinois Institute of Natural Resources, Illinois State Geological Survey Division, 1979
    Description: 19 pages ; 28 cm.
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    The Wabash Valley Fault System in southeastern Illinois

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