Fractionnements isotopiques à l’équilibre de l’antimoine

Fractionnements isotopiques à l’équilibre de l’antimoine

Highlights First estimation of equilibrium Sb isotope fractionation factors among Sb minerals.PBEsol pseudopotential best reproduces Sb mineral lattices and Raman frequencies.Factors affecting Sb isotope fractionation: Sb oxidation > change in Sb first-neighbour...
Eutrophisation anthropique du lac Titicaca (Bolivie)

Eutrophisation anthropique du lac Titicaca (Bolivie)

Highlights C and N stable isotopes were measured in four compartments of Lake Titicaca.Anthropogenic discharge affects baseline C and N isotope signatures.C recycling from soil, anthropogenic and lacustrine sources affect the δ13C signature.δ15N signatures track...