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Biocénoses Pléistocènes des séquences loessiques de Villier-Adam (Val d'Oise, France): Etudes Malacologiques et palynologiques = Pleistocene biocenoses from loess sequences at Villiers-Adam (Val d'Oise, France): malacological and palynological
Limondin-Lozouet, N.; Gauthier, A. (2003). Biocénoses Pléistocènes des séquences loessiques de Villier-Adam (Val d'Oise, France): Etudes Malacologiques et palynologiques = Pleistocene biocenoses from loess sequences at Villiers-Adam (Val d'Oise, France): malacological and palynological. Quaternaire 14(4): 237-252. https://dx.doi.org/10.3406/quate.2003.1745
In: Quaternaire. Maison de la Géologie: Paris. ISSN 1142-2904; e-ISSN 1965-0795
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Biology > Zoology > Invertebrate zoology > Malacology
    Geological time > Phanerozoic > Geological time > Cenozoic > Quaternary > Pleistocene
    Loess
    Palynology
Author keywords
    Paris Basin; Saalian; Weichsehan
Auteurs  Top 
  • Limondin-Lozouet, N.
  • Gauthier, A.
Abstract
    Loessic sequences of Villers-Adam have provided malacological assemblages from Late Saalian and Weichselian deposits as well as pollen contents from Weichselian Middle Pleniglacial levels. Palaeoenvironmental and climatic interpretations inferred from biocenoses reinforce those deduced after pedo-stratigraphic data. Fast sedimentation phases with calcareous loess imply very cold conditions as registered by impoverished malacological assemblages. Within these «Pupilla faunas», distribution of hygrophilous taxa such as Succinea oblonga indicate variations of humidity (Late Saalian drier than Weichselian Late Pleniglacial). By contrast the Weichselian Early Glacial and Middle Pleniglacial are characterised by slower sedimentation with development of soils sequences implying improvement of climatic conditions. This interpretation is strenghtened by occurrence of richer molluscan faunas and furthermore by preservation of pollen indicative of tundra landscape during the Weichselian Middle Pleniglacial.
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