Carbon mineralization pathways and bioturbation in coastal Brazilian sediments

Carbon mineralization pathways and bioturbation in coastal Brazilian sediments

Carbon mineralization processes and their dependence on environmental conditions (e.g. through macrobenthic bioturbation) have been widely studied in temperate coastal sediments, but almost nothing is known about these processes in subtropical coastal sediments. This study investigated pathways of organic carbon mineralization and associated effects of macrobenthic bioturbation in winter and su...

Mineralization of 2,4,6-Trinitrotoluene (TNT) in Coastal Waters and Sediments

Bacterial carbon sources in coastal sediments

Bacterial carbon sources in coastal sediments: a review based on stable isotope data of biomarkers S. Bouillon and H. T. S. Boschker Department of Analytical and Environmental Chemistry, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium Netherlands Institute of Ecology (NIOO-KNAW), Centre for Estuarine and Marine Ecology, PO Box 140, 4400 AC Yerseke, The Netherlands Received: 26 A...

Temperature sensitivity of organic carbon mineralization in contrasting lake sediments

Temperature alone explains a great amount of variation in sediment organic carbon (OC) mineralization. Studies on decomposition of soil OC suggest that (1) temperature sensitivity differs between the fast and slowly decomposition OC and (2) over time, decreasing soil respiration is coupled with increase in temperature sensitivity. In lakes, autochthonous and allochthonous OC sources are general...

Bioturbation: Reworking Sediments for Better or Worse

Oilfield Review Winter 2014/2015: 26, no. 4. Copyright © 2015 Schlumberger. FMI is a mark of Schlumberger. Sediments undergo several modifications to become the source rocks, reservoirs and seals that generate and contain petroleum reserves. The changes that occur between deposition and lithification, collectively known as diagenesis, include the processes of compaction, cementation, dissolutio...