Sulfur Diagenesis in Everglades Peat and Origin of Pyrite in Coal

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Science  15 Jul 1983:
Vol. 221, Issue 4607, pp. 221-227
DOI: 10.1126/science.221.4607.221


The pattern of sulfur transformation in peat across the Everglades basin indicates that pyrite formation in organic-rich swamps depends on the use of organic oxysulfur compounds in dissimilatory respiration by sulfur-reducing bacteria. This paragenesis explains the primary distribution of sulfur compounds in low-sulfur coals and possibly in most coals and many organic-rich soils and sediments. It also accounts for the occurrence of framboidal pyrite bound in fossil tissue in coal and sediments.