NissirosV1, Main, Exploration, bibRecord, 000230

Compositional characterization of suspended particulate matter in hellenic volcanic arc hydrothermal centres

Identifieur interne : 000230 ( Main/Exploration ); précédent : 000229; suivant : 000231

Compositional characterization of suspended particulate matter in hellenic volcanic arc hydrothermal centres

Auteurs : S. P Varnavas [Grèce] ; D. Panagiotaras [Grèce] ; P. Megalovasilis [Grèce] ; P. Dando [Royaume-Uni] ; S. Alliani [Italie] ; R. Meloni [Italie]

Source :

Physics and Chemistry of the Earth, Part B [ 1464-1909 ] ; 2000.

RBID : ISTEX:D20A5D40769B896227FEBCD6A69FF8E355616841

Descripteurs français

Wicri :
- topic : Milieu marin.

English descriptors

Abstract

Abstract: Suspended particulate matter (SPM) separated from waters discharging from a number of submarine hydrothermal vents at Palaeochori bay, Milos island was analysed for major and trace elements (i.e. Fe, Mn, Cu, Pb, Cd, Ca, Sr, Si, Al, B a). It was found that SPM in the hydrothermal waters investigated was strongly enriched in Fe, Mn, Si and Ba compared with normal Aegean Sea waters. Four major hydrothermal centres were distinguished on the basis of the SPM chemical characteristics. On average Fe decreases in the four hydrothermal centres in the following order : A > D > C > B while Si decreases as follows: D > A > C > B. Calcium, Sr, Si and Ba show a strong biogenic affiliation. The marked enrichment of these elements in hydrothermal centre D relative to the other hydrothermal centres indicates strong biological activity there. The diurnal variability of Ca, Sr, Si and Ba shows increase in the afternoon. On average the concentrations of Fe, Si and Ca were higher in September 1996 than in June 1996. By contrast Mn, Cu, Pb and Sr were more enriched in June than in September 96.

Url:

https://api.istex.fr/document/D20A5D40769B896227FEBCD6A69FF8E355616841/fulltext/pdf

DOI: 10.1016/S1464-1909(99)00113-6

Affiliations:

Grèce, Italie, Royaume-Uni

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Le document en format XML

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<term>Factor analysis</term>
<term>Factor matrix</term>
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<term>Spatial variability</term>
<term>Strong biogenic affiliation</term>
<term>Submarine hydrothermal fields</term>
<term>Surface waters</term>
<term>Temperature variability</term>
<term>Third factor accounts</term>
<term>Total data variance</term>
<term>Trace elements</term>
<term>Values decrease</term>
<term>Vamavas</term>
<term>Variability</term>
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<term>Water flow</term>
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<front><div type="abstract" xml:lang="en">Abstract: Suspended particulate matter (SPM) separated from waters discharging from a number of submarine hydrothermal vents at Palaeochori bay, Milos island was analysed for major and trace elements (i.e. Fe, Mn, Cu, Pb, Cd, Ca, Sr, Si, Al, B a). It was found that SPM in the hydrothermal waters investigated was strongly enriched in Fe, Mn, Si and Ba compared with normal Aegean Sea waters. Four major hydrothermal centres were distinguished on the basis of the SPM chemical characteristics. On average Fe decreases in the four hydrothermal centres in the following order : A > D > C > B while Si decreases as follows: D > A > C > B. Calcium, Sr, Si and Ba show a strong biogenic affiliation. The marked enrichment of these elements in hydrothermal centre D relative to the other hydrothermal centres indicates strong biological activity there. The diurnal variability of Ca, Sr, Si and Ba shows increase in the afternoon. On average the concentrations of Fe, Si and Ca were higher in September 1996 than in June 1996. By contrast Mn, Cu, Pb and Sr were more enriched in June than in September 96.</div>
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Compositional characterization of suspended particulate matter in hellenic volcanic arc hydrothermal centres

Compositional characterization of suspended particulate matter in hellenic volcanic arc hydrothermal centres

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri