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| Marchand, Michel; Caprais, Jean-claude; Corre, Sophie; Jacq, Evelyne; Hussein, Dira. |
| Microbial utilization of occurring hydrocarbons by the sediment microbiota of Guaymas basin hydrothermal site (Gulf of California) The Guaymas Basin (Gulf of California) is an actively spreading oceanic basin and a site of hydrothermal activity. The basin floor, at about 2,000 m depth, is covered with a thick layer of pelagic sediments. The thermal alteration of recent sedimentary organic matter by the hydrothermal system generates hydrothermal petroleum. During the French-Mexican cruise Guaynaut, in November 1991, various samples were collected by means of the French submersible Nautile. Among the different scientific objectives of this campaign is the examination of the potential for hydrocarbon degradation by microbiota. Investigations were carried out... |
| Tipo: Text |
Palavras-chave: HYDROTHERMALISM; GUAYMAS; HYDROCARBONS; BIODEGRADATION; MICROBIOTA. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00091/20239/17890.pdf |
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| Bouloubassi, I; Saliot, A. |
| Surface sediments were collected in the Rhone delta, NW Mediterranean, at two seasons and analyzed for composition of non-aromatic hydrocarbons (NAH), long-chain linear alkylbenzenes (LAB) and polycyclic aromatic hydrocarbons (PAH) by GC and GC/MS following fractionation by normal phase HPLC. Concentrations varied from 21.2 to 166.7 mu/g for NAH, from 2097.9 to 9324.2 ng/g for total PAH and from 342.5 to 2713.0 ng/g for LAB. These levels are comparable to those reported for other coastal areas worldwide in the vicinity of important urban and industrial activities. Detailed analysis permitted identification of several contributions to the bulk sedimentary hydrocarbon mixture from fossil fuel related sources, pyrolytic processes, domestic wastes as well as... |
| Tipo: Text |
Palavras-chave: ANTHROPOGENIC NATURAL INPUTS; ESTUARY; HYDROCARBONS; MEDITERRANEAN; SEDIMENTS. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00099/21043/18669.pdf |
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