Les « Sables fauves », témoins de mouvements tectoniques dans le bassin d'Aquitaine au Miocène moyenThe ‘Sables fauves’, showing tectonic deformations in the Aquitaine Basin during Middle Miocene |
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Authors: | Philippe Gardère Jacques Rey Francis Duranthon |
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Institution: | 1. Laboratoire de dynamique des bassins sédimentaires, université Paul-Sabatier, Toulouse 3, 39, allées Jules Guesde, 31062 Toulouse cedex, France;2. Muséum d''histoire naturelle, 27, rue Bernard-Délicieux, 31200 Toulouse, France |
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Abstract: | New data about the ‘Sables fauves’ clearly show two different kinds of organisations: stratigraphic superposition of Langhian and Serravallian units to the south and embankment of Serravallian sediments in Langhian deposits to the north. The result consists in two different palaeogeographic schemes. The Langhian Sea is widely extended, forming the ‘Lectoure Gulf’, whereas the Serravallian Sea is much more reduced, with valleys fillings to the north and a little gulf to the south. This involves a tectonic activity along a structure which orientation is N120°E (‘flexure de la Douze’) and a relative rising of the northern part, of about 30 m. To cite this article: P. Gardère et al., C. R. Geoscience 334 (2002) 987–994. |
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Keywords: | Aquitaine ‘Sables fauves’ Middle Miocene planktic Foraminifera sequence stratigraphy tectonics France Aquitaine Sables fauves Miocène moyen Foraminifères planctoniques stratigraphie séquentielle tectonique France Stratigraphie Stratigraphy |
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