Chemical diagenesis in coastal marine sediments

For organic-rich sediments in Villefranche Bay, Mediterranean Sea, France, a stoichiometric model of organic matter oxidation coupled with sulphate reduction and precipitation of authigenic minerals is proposed in explanation of the observed distribution of elements. This model suggests that, during the first steps of early diagenesis in these sediments, CaCO₃ and FeS are precipitating from the pore waters. -from Authors