Conference report on the first meeting of French organic geochemists N^Jeremy JacobInstitut des Sciences de la Terre d'Orleans, Universite d'Orleans, ISTO, UMR 7327, 45071 Orleans, FranceMjeremy.jacob@univ-orleans.fr

摘要

Organic geochemistry aims at studying the nature, structure, and chemistry of natural and anthropic organic matters in order to understand their mode of formation or their sources, the processes that allow their transformation, preservation or degradation during diagenesis, and, more generally, their dynamics in natural and human-altered systems. In the field of geosciences, this discipline constitutes a link between biosphere and geosphere. The information provided by organic geochemical studies addresses issues as diversified as the past evolution of climates, ecosystems, and biodiversity, the genesis of petroleum and coal, pollutant dynamics, the carbon cycle, the origin of life.