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Neogene stratigraphy of the Langenboom locality (Noord-Brabant, the Netherlands)

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Author: Wijnker, E. · Bor, T.J. · Wesselingh, F.P. · Munsterman, D.K. · Brinkhuis, H. · Burger, A.W. · Vonhof, H.B. · Post, K. · Hoedemakers, K. · Janse, A.C. · Taverne, N.
Institution: TNO Bouw en Ondergrond
Source:Geologie en Mijnbouw/Netherlands Journal of Geosciences, 2, 87, 165-180
Identifier: 240812
Keywords: Geosciences · Breda formation · Mill · Miocene · North Sea Basin · Oosterhout formation · Pliocene · biostratigraphy · dinoflagellate cyst · fossil record · Miocene · Pliocene · sequence stratigraphy · skeletal remains · Atlantic Ocean · Benelux · Eurasia · Europe · Netherlands · North Brabant · North Sea · Western Europe · Aves · Chondrichthyes · Dinophyceae · Mammalia · Mollusca · Teleostei · Zanclea


The locality of Langenboom (eastern Noord-Brabant, the Netherlands), also known as Mill, is famous for its Neogene molluscs, shark teeth, teleost remains, birds and marine mammals. The stratigraphic context of the fossils, which have been collected from sand suppletions, was hitherto poorly understood. Here we report on a section which has been sampled by divers in the adjacent flooded sandpit 'De Kuilen' from which the Langenboom sands have been extracted. The studied section covers part of the marine Miocene Breda Formation and Pliocene Oosterhout Formation, and is topped by fluvial Quaternary deposits of presumably the Beegden Formation. The Breda Formation (15 - 18 m below lake surface) in this section is, based on organic walled dinoflagellate cysts, of an early-middle Tortonian age. The Oosterhout Formation (7 - 15 m below lake surface) comprises two depositional sequences, the lower of which (12 - 15 m below lake surface) presumably is the source of most Langenboom fossils. Combined dinoflagellate cyst and benthic mollusc indicators point to an early Zanclean - early Piacenzian age for this lower cycle. Its basal transgressive lag and (to lesser extent) top comprise reworked Tortonian taxa as well. Dinoflagellate cysts and a single benthic mollusc point to a Piacenzian age for the upper Oosterhout Formation sequence (7 - 12 m below lake surface).