We are organizing a session on organic matter recycling and diagenesis in sedimentary environment at the next European Geoscience Meeting in Vienna (Austria). We invite all people who are interested in sharing geomicrobiology related work, in soil, lake or ocean sediments. We would like to foster the collaboration between deep biosphere lovers and geoscientists-paleoclimatologists working on environmental reconstructions. For more information, contact session convener Camille Thomas (University of Geneva). The abstract submission deadline is January 10, 2019.