%0 Journal Article %T Relations between organic and terrigenous matter deposition in Holocene fluvial sediments: heterodox observations and conclusions. %+ Géologie des environnements aquatiques continentaux (GéEAC EA 2100) %+ Institut des Sciences de la Terre d'Orléans (ISTO) %A Macaire, Jean-Jacques %A Di Giovanni, Christian %A Hinschberger, Florent %< avec comité de lecture %J Comptes Rendus Géoscience %I Elsevier %V 337 %P 8, 735-744 %8 2005 %D 2005 %R 10.1016/j.crte.2005.03.017 %K Holocene %K Peat %K Terrigenous sediments %K Fluvial environment %K Accumulation rates %K Paris Basin %K France %Z Sciences of the Universe [physics]/Continental interfaces, environment %Z Environmental Sciences/Global ChangesJournal articles %X Accumulation of organic matter in fens of fluvial valleys is often related to a low terrigenous matter delivery and to palaeoenvironmental conditions inducing low mechanical erosion. These assumptions come from the interpretation of contents in organic (MO) and mineral (MM) matters in sediments, expressed in percents, and then exactly anticorrelated. Calculation of mass accumulation rates of MO (TaMO) and MM (TaMM), expressed in g m−2 yr−1, shows that TaMO and TaMM generally are not anticorrelated and that high values of TaMO and TaMM could appear simultaneously. That expression of MO and MM accumulation makes it possible to precise the climatic and human impact on sedimentation. %G English %2 https://insu.hal.science/hal-00023442/document %2 https://insu.hal.science/hal-00023442/file/Macaire-CRAG-2005.pdf %L hal-00023442 %U https://insu.hal.science/hal-00023442 %~ SDE %~ INSU %~ UNIV-TOURS %~ CNRS %~ UNIV-ORLEANS %~ ISTO %~ OSUC %~ GIP-BE %~ GEHCO %~ TEST3-HALCNRS