Seasonal and topographic variations in porewaters of a southeastern USA salt marsh as revealed by voltammetric profiling†

@article{Bull2001SeasonalAT,
  title={Seasonal and topographic variations in porewaters of a southeastern USA salt marsh as revealed by voltammetric profiling†},
  author={David C Bull and Martial Taillefert},
  journal={Geochemical Transactions},
  year={2001},
  volume={2},
  pages={104 - 104}
}
We report electrochemical profiles from unvegetated surficial sediments of a Georgia salt marsh. In creek bank sediments, the absence of Sigma H2S or FeSaq and the presence of Fe(III)-organic complexes suggest that Mn and Fe reduction dominates over at least the top ca. 5 cm of the sediment column, consistent with other recent results. In unvegetated flats, accumulation of Sigma H2S indicates that SO42- reduction dominates over the same depth. A summer release of dissolved organic species from… CONTINUE READING