Chronostratigraphie et distribution spatiale des dépôts éoliens quaternaires du bassin aquitain

Abstract : Le Pleniglacial, the north-west during the Upper Pleniglacial, and from south-southwest throughout the Younger Dryas. Here, we connect changing wind directions to seasonal variations in aeolian transport. Comparing annual azimuthal distribution of current wind regimes with wind regime models for LGM suggests that during the Upper Pleniglacial the dominant aeolian transport season shifted towards the summer, i.e. after seasonally frozen ground thawed and snow cover melted. Conversely, Middle Pleniglacial and Younger Dryas wind regimes reflect a general deflation during the winter.
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Luca Sitzia. Chronostratigraphie et distribution spatiale des dépôts éoliens quaternaires du bassin aquitain. Archéologie et Préhistoire. Université de Bordeaux, 2014. Français. ⟨NNT : 2014BORD0040⟩. ⟨tel-01197192⟩

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