Geologica Belgica

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Edouard POTY, Luc HANCE, Alan LEES & Michel HENNEBERT

Dinantian lithostratigraphic units (Belgium)

(volume 4 (2001) — number 1-2 - Guide to a revised lithostratigraphic scale of Belgium)
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Abstract

Six paleogeographic sedimentation areas (s. a.) are recognized in the Namur-Dinant Basin: (1) the Hainaut s. a., (2) the Namur s. a., (3) the Condroz s. a., (4) the Dinant s. a., (5) the Visé-Maastricht s. a., and (6) the southern Avesnois s. a. (only in northern France). Together with the sea-level variations (third-order sequences), local controls influenced the nature of the sedimentary deposits, so the lithostratigraphic successions in each sedimentation area are distinctive. The depositional setting was that of a carbonate platform which evolved from a ramp in the early Tournaisian to a rimmed shelf during the early Viséan and then to a regionally extensive shelf during the middle and late Viséan. Before the Livian, open marine fades were developed to the south, but from the Livian onwards open marine facies were restricted to the north while evaporites developed in the south. This inversion of the normal pattern was probably related to an early phase of Variscan shortening. Dinantian biostratigraphy is mainly based upon foraminifera, rugose corals and conodonts. Fifty formations (including members), 3 groups and 2 informal lithostratigraphic units are briefly described.

Keywords : Dinantian, Belgium, Lithostratigraphy

Para citar este artículo

Edouard POTY, Luc HANCE, Alan LEES & Michel HENNEBERT, «Dinantian lithostratigraphic units (Belgium)», Geologica Belgica [En ligne], volume 4 (2001), number 1-2 - Guide to a revised lithostratigraphic scale of Belgium, 69-94 URL : https://popups.uliege.be/1374-8505/index.php?id=1930.

Acerca de: Edouard POTY

Paléontologie animale, Université de Liège, bât. B18, bd du 6 août, Sart Tilman, B-4000 Liège. E.poty@ulg.ac.be

Acerca de: Luc HANCE

Université Catholique de Louvain, PI. L. Pasteur, 3, B-1348 Louvain-la-Neuve. Hance@geol.ucl.ac.be

Acerca de: Alan LEES

Geology Department, National University of Ireland, Galway, Ireland.

Acerca de: Michel HENNEBERT

Service de géologie fondamentale et appliquée, Faculté Polytechnique de Mons, rue de Houdain, 9, B-7000 Mons. Hennebert@hydro.fpms.ac.be