Source, transport and fate of terrestrial organic carbon on the western Mediterranean Sea, Gulf of Lions, France

As part of the EuroSTRATAFORM project, a multi-proxy study was conducted in order to investigate origin, transport and deposition of riverine organic matter in the Gulf of Lions. Surface sediments (0–1 cm) from the Rhône prodelta area and along the sediment dispersal system were collected in Septemb...

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Vydáno v:Marine chemistry Ročník 105; číslo 1; s. 101 - 117
Hlavní autoři: Tesi, Tommaso, Miserocchi, Stefano, Goñi, Miguel A., Langone, Leonardo
Médium: Journal Article
Jazyk:angličtina
Vydáno: Amsterdam Elsevier B.V 25.04.2007
Elsevier Science
Témata:
Alkaline CuO oxidation
Earth sciences
Earth, ocean, space
Exact sciences and technology
External geophysics
Geochemistry
Gulf of Lions
Lignin-derived
Marine
Mineralogy
Organic matter
Phenols
Physical and chemical properties of sea water
Physics of the oceans
Rhône river
Silicates
Stable isotopes
Surface sediment
Water geochemistry
Gulf of Lion
France
West Mediterranean
Rhone River
Western Europe
MED, France, Lion Gulf
MED, Western Mediterranean
France, Provence-Cote d'Azur, Rhone
MED, France
Organic matter
Stable isotopes
Surface sediment
Alkaline CuO oxidation
Phenols
Lignin-derived
Gulf of Lions
Rhône river
sea water
stable isotopes
phenols
projects
Europe
fine-grained materials
oxidation
lignin
transport
offshore
sand
hydrochemistry
materials
organic materials
debris
particles
Mediterranean Sea
organic carbon
ISSN:0304-4203, 1872-7581
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Popis
Shrnutí:As part of the EuroSTRATAFORM project, a multi-proxy study was conducted in order to investigate origin, transport and deposition of riverine organic matter in the Gulf of Lions. Surface sediments (0–1 cm) from the Rhône prodelta area and along the sediment dispersal system were collected in September 2004 and in April 2005. Lignin, elemental and stable carbon isotopic analyses were carried out to characterize the source of sedimentary organic material and to facilitate evaluation of temporal and spatial variability. Large contrasts in the organic matter composition of prodelta sediments were observed as a result of the preferential transport of the finest material. In our hypothesis, woody debris, rich in organic matter, hydraulically behaves like very fine sand and is retained within the prodelta area. In contrast, the organic matter adsorbed onto finer particles is selectively transported away from the prodelta along the sediment dispersal system, explaining the distinct organic matter composition observed in the offshore regions.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0304-4203
1872-7581
DOI:10.1016/j.marchem.2007.01.005