Geologic Controls on Deposition of the Pratt Seam, Black Warrior Basin, Alabama, U.S.A.

  1. R. A. Rahmani and
  2. R. M. Flores
  1. G. A. Weisenfluh and
  2. J. C. Ferm

Published Online: 28 APR 2009

DOI: 10.1002/9781444303797.ch18

Sedimentology of Coal and Coal-Bearing Sequences

Sedimentology of Coal and Coal-Bearing Sequences

How to Cite

Weisenfluh, G. A. and Ferm, J. C. (1985) Geologic Controls on Deposition of the Pratt Seam, Black Warrior Basin, Alabama, 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.ch18

Author Information

  1. Department of Geology, University of Kentucky, Lexington, Kentucky 40506, 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:

  • geologic controls on deposition of the Pratt seam - Black Warrior Basin;
  • Black Warrior Basin, consisting wedge of Carboniferous sedimentary rocks;
  • central portion of Black Warrior Basin, consisting normal faults;
  • areal distribution of Coal Bench and parting thickness;
  • topographic lows, resulting in premature drowning of the swamp

Summary

The Black Warrior Basin of Alabama and Mississippi is cut by NW-oriented, normal faults which are believed to be contemporaneous with Carboniferous sedimentation. Regional facies changes and petrographic variations suggest north-eastward sediment transport within the basin. Examination of the Pratt coal, one of the most widespread seams in the basin, indicates that both contemporaneous faulting and sediment transport down a NE-oriented palaeoslope influenced sites of thick peat accumulation by controlling the topographic surface on which the peat formed. Another influence on peat accumulation was topographic control produced by differential compaction of peat and detrital sediment.