Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Quaternary Science Reviews 203-211 QUATERNAIRE SEDIMENTATION LACUSTRE PETROGRAPHIE GEOCHIMIE MATIERE ORGANIQUE PALEOCLIMAT FRANCE MASSIF CENTRAL REGION BOUCHET LAC 1996 fdi:010006621 ENG Quaternary Science Reviews 0277-3791 ISI:A1996UR22100008 https://www.documentation.ird.fr/hor/fdi:010006621 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_45-46/010006621.pdf 15 Horizon (IRD) To assess the influence of climatic changes on organic lacustrine sedimentation, two cores recovered from the centre of the Lac du Bouchet were studied by petrographical (palynofacies) and geochemical methods. Only core LDB H was used for estimation of the organic fluxes. The variation of these fluxes with climo-stratigraphic periods showed : low organic fluxes during the Lateglacial, an increase at the beginning of the Holocene, a minimum at the end of the Atlantic period resulting from the climatic cooling, and a maximum at the end of the Sub-Boreal related to the installation of the present climatic conditions. (Résumé d'auteur) 064GEOQUA