Sulfur isotope composition of pore fluids at ODP Sites 128-798 and 128-799, supplement to: Torres, Marta E; Brumsack, Hans-Jürgen; Bohrmann, Gerhard; Emeis, Kay-Christian (1996): Barite fronts in continental margin sediments: A new look at barium remobilization in the zone of sulfate reduction and formation of heavy barites in diagenetic fronts. Chemical Geology, 127(1), 125-139

Marta E Torres, Hans-Jürgen Brumsack, Gerhard Bohrmann & Kay-Christian Emeis
Micro-crystalline barites recovered by deep-sea drilling from Site 684 on the Peru margin and Site 799 in the Japan Sea are highly enriched in the heavy sulfur isotope relative to seawater ( d34S up to +84‰). This isotopic composition is consistent with remobilization of biogenic barite triggered by sulfate reduction, and subsequent reprecipitation as a diagenetic barite front. The high levels of barium sulfate in these deposits (10-50%) cannot be explained by a diffusive transport...
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