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	Quick Search Author Title Abstract Nr. Schedule Nr. Programme Groups Great Debates Union Symposia Educational Symposia Atmospheric Sciences Biogeosciences Climate: Past, Present, Future Cryospheric Sciences Energy, Resources and the Environment Geochemistry, Mineralogy, Petrology & Volcanology Geodesy Geodynamics Geomorphology Geophysical Instrumentation Hydrological Sciences Magnetism, Palaeomagnetism, Rock Physics & Geomaterials Natural Hazards Nonlinear Processes in Geophysics Ocean Sciences Planetary and Solar System Sciences Seismology Soil System Sciences Solar-Terrestrial Sciences Stratigraphy, Sedimentology and Palaeontology Tectonics and Structural Geology Medal Lectures Key Note Lectures Key Note Sessions Division Business Meetings Editorial Board Meetings Townhall Meetings Splinter Meetings Union Meetings   Information - SSS1 Soils and weathered rocks from microscopic to atomic scale. Towards a chronology of weathering processes (co-listed in BG, CL, CR, GMPV & GM) (including Philippe Duchaufour Medal Lecture) Event Information Soils and saprolites, which result from the action of weathering processes, registered time and space variations of environmental changes but may also display components inherited from other processes as human activity, hydrothermalism and eolian sedimentation. The heterogeneity of such alteration mantles, which results from the complex interplay between self-organizing chemical-transport reactions and varying boundary conditions, make it difficult to interpret the soil record. Micromorphology is a powerful tool to discriminate the different processes through the identification of the parageneses by in situ approach. Unlocking the mineralogical record in soils, paleosoils and saprolites thus requires an integrated approach based on micro- and nano-morphological observations, combined with spatially resolved chemical, isotopic and mineralogical analyses, as well as on detailed investigations performed after chemically or physically selective treatments. The purpose of this session is to promote such a multi-disciplinary approach with a special emphasis on studies providing relative or absolute time constraints about soil formation and weathering processes. Preliminary List of Solicited Speakers A.Tsatskin,University of Haifa,Israel: Relevance of Fe transformations in paleosols for process-oriented stratigraphy of eolian sequences J.D.Meunier,CEREGE,Aix en Provence,France: The environmental record of secondary silica minerals in weathered rocks. F.Chabaux, EOST,Strasbourg,France: Use of 238U-234U-230Th radioactive disequilibria to constrain the recent dynamics of lateritic iron caps: Inferences from the Kaya Lateritic toposequence. E. Balan, IMPMC,Paris,France: How fast does kaolinite transform in lateritic soils? Co-Sponsorship General Statement The information contained hereafter has been compiled and uploaded by the Session Organizers via the "Organizer Session Form". The Session Organizers have therefore the sole responsibility that this information is true and accurate at the date of publication, and the conference organizer cannot accept any legal responsibility for any errors or omissions that may be made, and he makes no warranty, expressed or implied, with regard to the material published. Back to Session Programme

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