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A different approach is proposed here to solve the problem of negative δ13C excursions during the Ediacaran, by viewing them in terms of a linked carbon-sulfur-oxygen system, whereby changes in oxidant dynamics caused an excess of organic carbon oxidation over burial, resulting in a smaller DOM reservoir. The amount of oxidant required to achieve a deep negative carbon isotope excursion through net organic carbon oxidation may reasonably result from basin-scale evaporite dissolution. / Se propone aqui un enfoque diferente para resolver el problema de las excursiones quimioestratigraficas negativas durante el Ediacarico, considerandolas en terminos de un sistema vinculado de carbono-sulfuro-oxigeno, en el que los cambios en la dinamica de los oxidantes causarian un exceso de oxidacion de carbono organico sobre el enterramiento, lo que resultaria en un deposito menor de DOM. La cantidad de oxidante requerida para lograr una excursion isotopica de carbono negativa a traves de la oxidacion de carbono organico neto puede resultar razonablemente de la disolucion de evaporitaa a escala de cuenca.

Desequilibrio del ciclo del azufre y cambio ambiental durante el Período Ediacárico