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Cycling of iron and manganese in freshwater, estuarine and deep sea sediments in the Scheldt and Grevelingen Lake [De cyclus van ijzer en mangaan in zoetwater, estuariene en diepzeesedimenten in de Schelde en het Grevelingenmeer]
Citation
Ferro I., Soetaert K. 2002: Cycling of iron and manganese in freshwater, estuarine and deep sea sediments. Netherlands Institute of Ecology; Centre for Estuarine and Marine Ecology, Netherlands. Metadata available at http://data.nioo.knaw.nl/imis.php?module=dataset&dasid=1115
Contact: Afdeling Ecosysteem Studies (NIOZ-YES), more

Archived data
Availability: Restricted
The data are withheld from general circulation and disclosure but access may be obtained on a case-by-case basis through negotiation

Notes: Restrictions available at contact person

Description
The reactivity of sedimentary iron oxide is usually characterised by the size of various operationally defined iron pools. These different iron pools partly overlap, cover a large range of reactivities, and are affected by various sediment properties. more

We used a kinetic method (Postma 1993) in which iron oxide reactivity is represented as a reactive continuum, and compare results of a freshwater, an estuarine and a deep-sea sediment to traditional, single-step extraction results. Depth profiles were derived using both approaches. The traditional extraction methods have sufficient resolving power to reveal concentration differences of reactive iron oxides between samples from deep-sea, estuarine and freshwater sediments, but result in homogeneous depth profiles for iron oxide composition in the latter two sediments. The reactive continuum approach resulted in heterogeneous depth profiles of initial iron oxide reactivity and reactivity distribution for estuarine and freshwater sediments, thereby revealing differences in iron oxide composition. Due to low concentrations of reactive iron oxides the reactive continuum approach was not applicable in deep-sea sediments. Reactivities were independent of sediment surface area and the load of reactive iron oxides.

Scope
Themes:
Biology, Biology > Organic (& bio-) chemistry, Water composition, Water composition > Other inorganic chemistry
Keywords:
Marine, Fresh water, Brackish water, Terrestrial, Biogeochemical cycle, Bioturbation, Estuarine sedimentation, Freshwater sedimentation, Iron, Manganese, Morphodynamics, Oxidation-reduction reactions, ANE, Netherlands, Grevelingen L., ANE, Scheldt Estuary, Belgium, Zeeschelde, Appels

Geographical coverage
ANE, Netherlands, Grevelingen L. Stations [Marine Regions]
Vliegertje
Geul
ANE, Scheldt Estuary [Marine Regions]
Belgium, Zeeschelde, Appels [Marine Regions]

Temporal coverage
September 1997 - February 2002

Parameters
Iron (Fe), Manganese (Mn)

Contributors
Koninklijk Nederlands Instituut voor Onderzoek der Zee; NIOZ Yerseke, moredata owner
Koninklijk Nederlands Instituut voor Onderzoek der Zee; NIOZ Yerseke; Afdeling Ecosysteem Studies (YES), more

Project
SMILE: Sedimentary Manganese and Iron cycles, more

Publication
Describing this dataset:
Ferro, I. (2003). Cycling of iron and manganese in freshwater, estuarine and deep sea sediments. PhD Thesis. Rijksuniversiteit Groningen: Groningen. 162 pp., more

Dataset status: Completed
Data type: Data
Data origin: Research: experiment
Metadatarecord created: 2007-03-16
Information last updated: 2015-12-04
All data in IMIS is subject to the VLIZ privacy policy