A M#xF6;ssbauer, Chemical Extraction, and X-ray Diffraction Study of a Sediment from the Baie de Villefranche (France)

摘要

A marine sediment from the Baie de Villefranche (France) has been studied by sequential chemical extraction, X-ray powder diffraction and Mossbauer spectroscopy. The Mossbauer spectra of the solid fractions after each step of the extraction show changes in general agreement with those expected. The exception is siderite which is only partially extracted with other carbonates, the residue being extracted with the Iron(III) oxides. The selective extraction method allows the differentiation of species whose Mossbauer spectra are very similar.