The Decazeville coal basin lies in a depression in the basement rocks of the southwest part of the Massif Central in France. This depression is elongated north-south and is about 20 km long by 8 km wide. To the west, it is bounded by the major dislocation of the Grand Sillon Houiller. During mid and late Stephanian times, detrital sediments with frequent intercalations of coal were deposited in this basin. The sediments can be divided into six supergroups, with a total thickness of 1800 m (Fig. 104).


Coal Seam Plant Debris Detrital Sediment Iron Carbonate Seed Fern 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1983

Authors and Affiliations

  • Jean-Claude Gall
    • 1
  1. 1.Université Louis PasteurStrasbourgFrance

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