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	Provedor de dados OMA (3) Autor Jambers, W. (3) Van Grieken, R. (3) Dekov, V. (1) Eisma, D. (1) Gordeev, V. (1) Shevchenko, V.P. (1) Smekens, A. (1) Wegrzynek, D. (1) Mais... Palavra-chave Biochemical composition Biogenic material Geochemistry Mineralogy Organic matter Particulates Primary production Provenance River discharge Suspended particulate matter Terrigenous sediments ANE (1) Kara Sea (1) North Sea (1) Southern Bight (1) Suspended particulate matter X-ray spectroscopy PNE (1) Tipo do documento Info:eu-repo/semantics/article (3) Ano 1999 (1) 1997 (2) País Belgium (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Single particle characterisation of inorganic and organic North Sea suspension OMA Jambers, W.; Dekov, V.; Van Grieken, R.. Automated electron probe X-ray micro-analysis and scanning transmission electron microscopy were used to characterise the chemical and mineral composition of individual suspended particles, collected in the Southern Bight of the North Sea. The suspended matter contains 13 particle types, which can be classified in seven genetic groups: (i) terrigenous (aluminosilicate and calcium carbonate particle types); (ii) terrigenous-biogenic (silica type); (iii) terrigenous-hydrogenous (Fe-rich type); (iv) biogenic-authogenic (S-containing type); (v) terrigenous-anthropogenic (Ti- and Al-rich types); (vi) biogenic-anthropogenic (organic type); and (vii) terrigenous-anthropogenic-authogenous (heavy metal rich type). Staining the suspended matter with... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biochemical composition Biogenic material Geochemistry Mineralogy Organic matter Particulates Primary production Provenance River discharge Suspended particulate matter Terrigenous sediments ANE; North Sea; Southern Bight. Ano: 1999 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4019 Individual particle analysis of Western Mediterranean sediment cores, Rhône suspended matter and Sahara aerosols: investigation of inputs to the sediments OMA Wegrzynek, D.; Jambers, W.; Van Grieken, R.; Eisma, D.. Individual particle analysis using electron probe X-ray microanalysis was performed on sediment cores from the Gulf of Lions (Western Mediterranean Sea), on atmospheric aerosols sampled in Corsica and originating from Northern Africa, and on Rhône suspended matter. Cluster analysis was done to yield major particle types and kriging spatial analysis was applied to obtain the distributions of the particle types in the sediment surface layers. For three sediment cores, the depth profiles of particle groups were examined. The predominant particle types composing the sediment material in the Gulf of Lions were found to be Si-rich particles (quartz and biogenic silicate), aluminosilicate minerals (illite, kaolinite, chlorite) and Ca-rich particles (aragonite,... Tipo: Info:eu-repo/semantics/article Ano: 1997 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8299 Characterisation of particulate matter from the Kara Sea using electron probe X-ray micro analysis OMA Jambers, W.; Smekens, A.; Van Grieken, R.; Shevchenko, V.P.; Gordeev, V.. Automated electron probe X-ray micro-analysis (EPXMA) was used to characterise 17,600 individual particles collected in the Kara Sea and in the estuary of the Yenisey River. Samples were obtained by filtering and centrifugation of particles in suspension and from bottom sediments. Multivariate techniques were used to reduce the enormous data sets. By testing hierarchical, non-hierarchical and fuzzy clustering on the centrifuged suspension samples, it was shown that hierarchical clustering is most suitable. The two other clustering methods are very time consuming and in most cases do not add any additional information. This hierarchical clustering of the data matrix results in different particle types which can be apportioned to their possible sources. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Suspended particulate matter X-ray spectroscopy PNE; Kara Sea. Ano: 1997 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2954 Registros recuperados: 3 Primeira ... 1 ... Última

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