Geologica Belgica


ISSN 1374-8505

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volume 9 (2006) -- number 1-2 (Chronostratigraphic units named from Belgium)

Type de document : Article

Luc Hance, Edouard Poty, François-Xavier Devuyst

TOURNAISIAN

Abstract

Abstract. The main elements that prompted the international community to use the Tournaisian as a name for the oldest stage of the Mississippian Subsystem are the same as those for the Viséan, i. e., the quality of exposures in southern Belgium, the diversity of facies, the pioneering palaeontological work that started in the mid 19th century and development of foraminiferal, conodont and rugose corals zonations in the last decades. The numerous Tournaisian sections in southern Belgium document a progressive change in environmental setting, from a ramp during the early Tournaisian to a shelf during the late Tournaisian. The spectacular late Tournaisian Waulsortian buildups that occurred within 2 third-order sequences had a strong impact on subsequent Viséan sedimentation. Recent advances in understanding the sequence stratigraphy has led to new insights on correlation between the central Dinant Sedimentation Area and more proximal areas.

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Pour citer cet article :

Luc Hance, Edouard Poty & François-Xavier Devuyst. «TOURNAISIAN». Geologica Belgica, volume 9 (2006)  number 1-2 (Chronostratigraphic units named from Belgium) : 47-53
http://popups.ulg.ac.be/Geol/document.php?id=1084
Les auteurs : 
Luc  Hance

Carmeuse Coordination Center, bd de Lauzelles, 65 – B1348 Louvain-la-Neuve, Belgium; E-mail: luc.hance@skynet.be

Edouard  Poty

Service de Paléontologie animale, Université de Liège, Bâtiment B18, Allée du 6 août, Sart Tilman, B-4000 Liège; E-mail: e.poty@ulg.ac.be

François-Xavier  Devuyst

Department of Geology, Trinity College, Dublin 2, Ireland; E-mail: devuyst@hotmail.com

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