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Indices de confinement dans les dépôts lacustres holocènes de Sarliève (Limagne,France) |
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| Authors: | Jean-Gabriel Bréhéret Jean-Jacques Macaire Amélie Fleury Agathe Fourmont Ingeborg Soulié-Märsche |
| Institution: | 1. Laboratoire GéEAC, UPRES EA 2100, Faculté des sciences et techniques, université François-Rabelais, parc Grandmont, 37200 Tours, France;2. Laboratoire de géologie de la matière organique, ISTO, UMR 6113 CNRS, bât. Géosciences, université d''Orléans, BP 6759, 45067 Orléans cedex 2, France;3. Laboratoire de paléobotanique, UMR 5554, université Montpellier-2, Cc 062, 34095 Montpellier cedex 5, France |
| Abstract: | The autochthonous magnesian carbonates and the gypsum depicted in the Holocene deposits from the ‘Marais de Sarliève’ (Limagne, France) result from an alkaline, magnesian and sulphated composition of waters. This is also recorded by the composition of algal micro- and macrophytes. This may be explained by the dissolved fluxes from the Oligocene catchment and from a restriction. During the historical period, the lake evolved towards a lesser restriction. To cite this article: J.-G. Bréhéret et al., C. R. Geoscience 335 (2003). |
| Keywords: | sédiment lacustre Holocène bio-induction calcite magnésienne dolomite confinement algues Limagne France lacustrine deposits Holocene bio-induction magnesian calcite dolomite restriction algae Limagne France |
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