Late Pleistocene Shelf-Perched Lowstand Wedges on the Rhône Continental Shelf

  1. Henry W. Posamentier4,
  2. Colin P. Summerhayes5,
  3. Bilal U. Haq6 and
  4. George P. Allen7
  1. M. Tesson1,
  2. G. P. Allen2 and
  3. C. Ravenne3

Published Online: 15 APR 2009

DOI: 10.1002/9781444304015.ch10

Sequence Stratigraphy and Facies Associations

Sequence Stratigraphy and Facies Associations

How to Cite

Tesson, M., Allen, G. P. and Ravenne, C. (1993) Late Pleistocene Shelf-Perched Lowstand Wedges on the Rhône Continental Shelf, in Sequence Stratigraphy and Facies Associations (eds H. W. Posamentier, C. P. Summerhayes, B. U. Haq and G. P. Allen), Blackwell Publishing Ltd., Oxford, UK. doi: 10.1002/9781444304015.ch10

Editor Information

  1. 4

    Plano, Texas, USA

  2. 5

    Godalming, UK

  3. 6

    Washington, DC, USA

  4. 7

    St Remy les Chevreuses, France

Author Information

  1. 1

    Université de Perpignan, 66100 Perpignan, France

  2. 2

    Total, Centre Scientifique et Technique, 78470 St Remy les Chevreuses, France

  3. 3

    Institut Français du Pétrole, 92500 Rueil-Malmaison, France

Publication History

  1. Published Online: 15 APR 2009
  2. Published Print: 17 NOV 1993

ISBN Information

Print ISBN: 9780632035489

Online ISBN: 9781444304015

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Keywords:

  • Quaternary applications of sequence-stratigraphic concepts;
  • Late Pleistocene shelf-perched lowstand wedges - Rhone continental shelf;
  • Golfe du Lion - northwestern Mediterranean sea;
  • sedimentological interpretation;
  • late-Quaternary deposits - Golfe du Lion;
  • episodes of shelf tilting interacting with high-frequency glacio-eustatic cycles to control stratal geometries

Summary

A grid of high-resolution seismic profiles on the shelf of the Rhône delta has shown the existence of a complex of superimposed prograding sediment wedges on the outer shelf. These wedges represent alternating episodes of coastal progradation and transgression, and constitute a shelf-perched lowstand wedge system. Although only the uppermost wedge has been dated (Würm), it is believed that the entire system was probably deposited during the latest Pleistocene glacial lowstand. The geometry and stratal patterns of the wedges resulted from a combination of high-frequency eustatic cycles and episodic shelf tilting which coincided with periods of transgression. This shelf tilting increased accommodation on the distal extremity of the wedges and controlled the pattern of onlap terminations of the individual wedges.