Sifeddine Abdelfettah auteur aut IRD Bertrand P. auteur aut IRD Lallier-Vergès E. auteur aut IRD Patience A.J. auteur aut IRD text journalArticle eng text/pdf reformatted digital access 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) specialized QUATERNAIRE SEDIMENTATION LACUSTRE PETROGRAPHIE GEOCHIMIE MATIERE ORGANIQUE PALEOCLIMAT FRANCE 064GEOQUA 15 203-211 1996 0277-3791 https://www.documentation.ird.fr/hor/fdi:010006621 0277-3791 [F B010006621] 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 IRD - Base Horizon / Pleins textes 1996-09-04 2016-08-18 fdi:010006621 fre