Biogeochemical reactions in marine sediments underlying anoxic water bodies.

Treude, Tina (2012) Biogeochemical reactions in marine sediments underlying anoxic water bodies. In: ANOXIA: Evidence for Eukaryote Survival and Paleontological Strategies. , ed. by Altenbach, Alexander V., Bernhard, Joan M. and Seckbach, Joseph. Cellular Origin, Life in Extreme Habitats and Astrobiology, 21 . Springer, Netherlands, pp. 17-39. ISBN 978-94-007-1895-1

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This chapter provides an overview of biogeochemical reactions in marine sediments
underlying temporal or permanent hypoxic and anoxic water bodies in modern and past
oceans. The aim of this review is to describe the chemical environment that organisms
inhabiting surface sediments encounter during oxygen depletion or deficiency. It also
introduces important metabolic processes that govern or are governed by different redox
settings. In Section 2, biogeochemical processes in sediments underlying fully
oxygenated water bodies are elucidated. Section 3 explains differences in biogeochemical
reactions in hypoxic and anoxic environments as opposed to oxygenated environments.
Modern oxygen minimum zones and permanent anoxic environments are introduced. In
Section 4, biogeochemical processes during past anoxic events and during the era before
the first rise of oxygen are reviewed.

Document Type: Book chapter
Keywords: Biogeochemistry; Marine sediments, hypoxic and anoxic environments,Oxygen Minimum Zones
Research affiliation: OceanRep > SFB 754 > B6
OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
OceanRep > SFB 754
Refereed: Yes
Open Access Journal?: No
Publisher: Springer
Projects: SFB754
Date Deposited: 30 Aug 2011 10:03
Last Modified: 17 Jan 2013 13:14

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