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Repeated Tethyan influences in the Early Campanian to Middle Late Maastrichtian successions of Folx-Les-Caves and Orp-Le-Petit
Bless, M.J.M.; Felder, P.J. Sjeuf; Jagt, J.W.M. (1991). Repeated Tethyan influences in the Early Campanian to Middle Late Maastrichtian successions of Folx-Les-Caves and Orp-Le-Petit. Ann. Soc. géol. Belg. (1968) 113(2): 179-197
In: Annales de la Société Géologique de Belgique (1968). Vaillant-Carmanne: Liège. ISSN 0037-9395
Peer reviewed article  

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Trefwoorden
    Geological time > Phanerozoic > Geological time > Mesozoic > Cretaceous
    Bryozoa [WoRMS]; Cephalopoda [WoRMS]; Echinodermata [WoRMS]; Foraminifera [WoRMS]; Ostracoda [WoRMS]
    Belgium, Orp-Jauche [Marine Regions]
    Marien

Auteurs  Top 
  • Bless, M.J.M.
  • Felder, P.J. Sjeuf
  • Jagt, J.W.M.

Abstract
    A preliminary study of the macrofossils (belemnites in particular), benthic forams and ostracodes in the Late Cretaceous chalk deposits at Folx-les-Caves and Orp-le-Petit (eastern Brabant Massif, Belgium) suggests that the sequence at Folx-les-Caves is of early Campanian (post lingua/quadrata Zone) age. The «craie blanche» and the «tuffeau jaunâtre» at Orp-le-Petit were deposited during the late Campanian and middle late Maastrichtian, respectively.The sedimentation of these chalks under shallow to very shallow subtidal conditions was temporarily interrupted by periods of emergence (conglomerate at Folx-les-Caves; hardground at Orp-le-Petit).The fossil assemblages of the early Campanian and middle late Maastrichtian comprise several distinctive Tethyan elements amongst macrofauna, forams and ostracodes which are rare in or absent from the late Campanian to early late Maastrichtian in Belgium and the SE Netherlands. Possible causes of these repeated Tethyan incursions are discussed.

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