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New lithostratigraphical, sedimentological, mineralogical and palaeontological data on the Mesozoic of Belgian Lorraine: a progress report
Boulvain, F.; Belanger, I.; Delsate, D.; Dosquet, D; Ghysel, P; Godefroit, P.; Laloux, M; Roche, M; Teerlynck, H; Thorez, J. (2000). New lithostratigraphical, sedimentological, mineralogical and palaeontological data on the Mesozoic of Belgian Lorraine: a progress report. Geol. Belg. 3(1-2): 3-33
In: Geologica Belgica. Geologica Belgica: Brussels . ISSN 1374-8505, more
Peer reviewed article  

Available in  Authors 

Keywords
Author keywords
    Lorraine, Triassic, Jurassic, boreholes, lithostratigraphy, palaeontology, palynology, petrography, clay mineralogy

Authors  Top 
  • Boulvain, F., more
  • Belanger, I.
  • Delsate, D.
  • Dosquet, D
  • Ghysel, P
  • Godefroit, P., more
  • Laloux, M
  • Roche, M
  • Teerlynck, H
  • Thorez, J.

Abstract
    A multidisciplinary study of some extensively cored boreholes with the new 1/25.000 geological mapping of Wallonia led us to propose a new lithostratigraphic canvas for Belgian Lorraine. This area is located on the N-E border of the Paris Basin, south of the Ardennes; the studied stratigraphic interval covers the Keuper to the Toarcian. Each of the new lithostratigraphic units is interpreted by macroscopic and microscopic sedimentological observations. Detailed palynological and claystratigraphical analyses were als o performed, providing additional stratigraphical, palaeoecological an dsedimentological data. The Habay Formation (conglomerates and red mudstones) is a fluvial unit, with imature channel conglomerates and paleosoils. The Attert Formation (sands and marls) corresponds to a restricted marine unit, evolving towards an alluvial plain (Levallois Member) . The second cycle begins with the Jamoigne Formation (bioturbated marls and limestones), a marine subtidal restricted unit, evolving towards a more sandy series (Metzert Member). The base of the third cycle corresponds to the rest of the Luxembourg For;ation, composed by a superposition of sand waves. The Ethe Formation (laminar mudstones and marls) marks a deepening of the basin and the outset of marine dysaerobic conditions. The Aubange Formation (bioturbated marls with sandstones and limestones) is characterized by the reappearnce of a normal benthic fauna. The Grandcourt Formation (laminar mudstones and marls) marks a return to open marine dysaerobic conditions. The Mont-Saint_Martin Formations (marls, sandy marls and oolitic ironstone is highly regressive unit, while the Longwy Formation (limestones) marks the initiation of a carbonate platform.

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