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Erschienen in:
1994 | OriginalPaper | Buchkapitel
Diel and spatial fluctuations of sulfur transformations
verfasst von : Pieter T. Visscher, Frank P. van den Ende
Erschienen in: Microbial Mats
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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Marine microbial mats often develop under conditions, where diel extremes in oxygen and sulfide are found (Fig 1), which are a result of the fluctuation of incident light. During the dark period, when photosynthesis ceases, free sulfide can reach the surface of the sediment, while during the light period super-saturating oxygen concentrations prevail at the same depth horizon. As a result of changing gradients of O2 and sulfide concentration, the flux of these compounds displays a diel pattern as well (Fig 2).