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L'évolution des nappes alluviales antérissiennes de la Garonne, dans l'avant-pays molassique

Abstract : Description and analysis of the Garonne pre-Riss deposits. Mindel alluvial pebble weathering is shown by : strong weathering of crystalline material ; clay formation and argillic development ; genesis of kaolinic minerals but very disorderly ; water-tighting of pebble alluvions. .. Gunz materials are little more weathered but Donau alluvions are extremly weathered, with important amounts of well crystallized kaolinic minerals. Iron-crust genesis and origin of silt cover are discussed.
Mots-clés : nappes alluviales Garonne
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Jacques Hubschman. L'évolution des nappes alluviales antérissiennes de la Garonne, dans l'avant-pays molassique. Bulletin de l'Association française pour l'étude du quaternaire, Association française pour l'étude du quaternaire, 1975, 12 (3-4), pp.149-169. ⟨10.3406/quate.1975.1262⟩. ⟨hal-02736109⟩

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