The Leslie Cemetery and Francisco Distributary Fluvial Channels in the Petersburg Formation (Pennsylvanian) of Gibson County, Indiana, U.S.A.

  1. R. A. Rahmani and
  2. R. M. Flores
  1. Donald L. Eggert

Published Online: 28 APR 2009

DOI: 10.1002/9781444303797.ch17

Sedimentology of Coal and Coal-Bearing Sequences

Sedimentology of Coal and Coal-Bearing Sequences

How to Cite

Eggert, D. L. (1985) The Leslie Cemetery and Francisco Distributary Fluvial Channels in the Petersburg Formation (Pennsylvanian) of Gibson County, Indiana, U.S.A., in Sedimentology of Coal and Coal-Bearing Sequences (eds R. A. Rahmani and R. M. Flores), Blackwell Publishing Ltd., Oxford, UK. doi: 10.1002/9781444303797.ch17

Author Information

  1. Indiana Geological Survey, 611, N. Walnut Grove, Bloomington, IN 47405, USA

Publication History

  1. Published Online: 28 APR 2009
  2. Published Print: 26 MAR 1985

ISBN Information

Print ISBN: 9780632012862

Online ISBN: 9781444303797

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Keywords:

  • Leslie Cemetery and Francisco distributary fluvial channels in Petersburg Formation of Gibson County;
  • sediments beneath Houchin Creek coal, consisting mudstones and sand bodies;
  • low-sulphur coal reserves beneath Leslie Cemetery Channel;
  • Leslie Cemetery Channel and the Folsomville Member, splitting Springfield into two seams;
  • Dugger Formation, depositing after black shale

Summary

The Leslie Cemetery Channel is a small distributary fluvial channel that is partly contemporaneous with the Springfield Coal Member of the Petersburg Formation (Pennsylvanian) and splits the seam into two seams. This channel is 1–6 miles (1.6–10 km) wide and extends 30 miles (48 km) in the subsurface. Overbank and channel fill deposits consisting of sandstone, siltstone, and mudstone split the coal into two seams up to 40–50 ft (12–15 m) apart in places. The lower seam is a low-sulphur coal. Adjacent to this channel is the unsplit coal, which is as much as 9 ft (3 m) thick. Beneath the Leslie Cemetery Channel and the Springfield coal is the slightly older Francisco Channel (new name), which is younger than the next lower coal. This channel is filled with a fining-upward sandstone as much as 75 ft (23 m) thick. The positions of these stacked channels were determined by the differential compaction of earlier sediments.