The effect of tidal forcing on biogeochemical processes in intertidal salt marsh sediments |
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| Authors: | Martial Taillefert Stephanie Neuhuber Gwendolyn Bristow |
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| Institution: | (1) School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332-0340, USA;(2) Department of Geodynamics and Sedimentology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria |
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| Abstract: | Background Early diagenetic processes involved in natural organic matter (NOM) oxidation in marine sediments have been for the most part
characterized after collecting sediment cores and extracting porewaters. These techniques have proven useful for deep-sea
sediments where biogeochemical processes are limited to aerobic respiration, denitrification, and manganese reduction and
span over several centimeters. In coastal marine sediments, however, the concentration of NOM is so high that the spatial
resolution needed to characterize these processes cannot be achieved with conventional sampling techniques. In addition, coastal
sediments are influenced by tidal forcing that likely affects the processes involved in carbon oxidation. |
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