IMIS

Publicaties | Instituten | Personen | Datasets | Projecten | Kaarten
[ meld een fout in dit record ] Print deze pagina

De cyclus van ijzer en mangaan in zoetwater, estuariene en diepzeesedimenten in de Schelde en het Grevelingenmeer [Cycling of iron and manganese in freshwater, estuarine and deep sea sediments in the Scheldt and Grevelingen Lake]
Citatie
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://mda.nioo.knaw.nl/imis.php?module=dataset&dasid=1115. https://marineinfo.org/id/dataset/1115

Gearchiveerde data
Beschikbaarheid: Beschikbaar onder voorwaarden
The data are withheld from general circulation and disclosure but access may be obtained on a case-by-case basis through negotiation

Nota: Restrictions available at contact person

Beschrijving
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. meer

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
Thema's:
Biologie, Biologie > Organisch (& bio-) chemie, Watersamenstelling, Watersamenstelling > Andere anorganische chemie
Kernwoorden:
Marien/Kust, Zoet water, Brak water, Biogeochemische cyclus, Bioturbatie, Estuariene sedimentatie, Ijzer, Mangaan, Morfodynamica, Redox-reacties, Zoetwater sedimentatie, ANE, Nederland, Grevelingenmeer, ANE, Schelde-estuarium, België, Zeeschelde, Appels

Geografische spreiding
ANE, Nederland, Grevelingenmeer Stations [Marine Regions]
Vliegertje
Geul
ANE, Schelde-estuarium [Marine Regions]
België, Zeeschelde, Appels [Marine Regions]

Spreiding in de tijd
September 1997 - Februari 2002

Parameters
Ijzer (fe)
Mangaan (Mg)

Bijdrage door
Koninklijk Nederlands Instituut voor Onderzoek der Zee; NIOZ Yerseke, meerdata eigenaar

Project
SMILE: Sedimentary Manganese and Iron cycles, meer

Publicatie
Beschrijft deze dataset
Ferro, I. (2003). Cycling of iron and manganese in freshwater, estuarine and deep sea sediments. PhD Thesis. Rijksuniversiteit Groningen: Groningen. 162 pp., meer

Dataset status: Afgelopen
Data type: Data
Data oorsprong: Onderzoek: experiment
Metadatarecord aangemaakt: 2007-03-16
Informatie laatst gewijzigd: 2015-12-04
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid