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Registros recuperados: 25
Primeira ... 12 ... Última
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Un modèle géométrique et stratigraphique des séquences de dépôts quaternaires sur la marge du golfe du lion : enregistrement des cycles climatiques de 100 000 ans ArchiMer
Rabineau, Marina.
The up to 70 km wide continental shelf of the Golfe du Lion has been the object of numerous investigationss since the early days of Oceanography. Yet several key questions have remained unanswered and are still controversial. Among these questions are: What are the relationships between sedimentary sequences, Quaternary glacioeustatic cycles and tectonics? What is the sequence duration? What are the mechanisms of deposition? A study of the Very High Resolution (VHR) seismic reflection (Sparker) data collected by Ifremer between 1992 and 1998 on the outer shelf and upper slope offshore of Sète in the Languedoc region gives a new insight into these issues. The surveyed area covers 40 x 40 km with a line spacing of 400-1000 m. Useful depth of penetration is...
Tipo: Text Palavras-chave: Stratigraphic modelling; Cores; High resolution seismic data; Glacioeustatism; Climatic cycles; Sequences; Gulf of Lion; Western Mediterranean; Simulation stratigraphique; Carottes; Sismique haute résolution; Stratigraphie Séquentielle; Glacioeustatisme; Cycles climatiques; Séquences sédimentaires; Méditerranée occidentale; Golfe du Lion.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/these-331.pdf
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Research activities in the Gulf of Lion (NW Mediterranean) within the 1997-2001 PNEC project ArchiMer
Raimbault, Patrick; Durrieu De Madron, Xavier.
The French national program on the coastal environment Programme National Environnement Cotier (PNEC) represented during the last decade a major support for the pluridisciplinary oceanographic research in the Gulf of Lion. During the second phase of the program, that lasted from 1997 to 2001, the main objective for this worksite was to establish an annual budget of carbon and associated biogenic elements to characterise the role of this region as source and the sink of elements. This introductory paper provides an over-view of the research framework and recapitulates the major scientific outcomes.
Tipo: Text Palavras-chave: Environment côtier; Golfe du Lion; Pluridisciplinaire; Bilan; Coastal environment; Gulf of Lion; Pluridisciplinary; Budget.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/00301/41208/40376.pdf
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Quaternary turbidite systems on the northern margins of the Balearic Basin (Western Mediterranean): a synthesis ArchiMer
Droz, Laurence; Dos Reis, A. T.; Rabineau, Marina; Berne, Serge; Bellaiche, G.
The Balearic Basin is a young basin composed of thick Plio-Quaternary sediments, including active gravity sedimentation. During the Quaternary, gravity processes deposited (1) turbidite systems, either as symmetrical fans (Petit-Rhone and Valencia fans) or asymmetrical ridges (Marseille-Planier, Grand- Rhone and Pyreneo-Languedocian ridges) and (2) several mass-transport deposits, indicating recurrent sedimentary failures of the margin. This paper synthesizes previous works and proposes a chronological sedimentary evolution for the basin. Except for the last 20 ka, the chronostratigraphy remains poorly constrained but should soon be established for the last 500 ka, based on the PROMESS1 drillings on the outer shelf of the Gulf of Lions, and hopefully for...
Tipo: Text Palavras-chave: Gulf of Lion; Quaternary evolution; Turbidity; Sedimentary system.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-2171.pdf
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Relationship between sedimentary organic matter and benthic fauna within the Gulf of Lion: synthesis on the identification of new biochemical descriptors of sedimentary organic nutritional value ArchiMer
Gremare, A; Medernach, L; Debovee, F; Amouroux, Jm; Charles, F; Dinet, A; Vetion, G; Albert, P; Colomines, Jc.
The abilities of several biochemical characteristics of sedimentary organic matter to describe quantitative changes in benthic fauna were assessed based on several surveys carried out within the Gulf of Lion during the last decade. Two sets of high frequency samplings were carried out both inshore and offshore, together with an assessment of seasonal variability along a depth gradient, and a synoptic assessment of mesoscale spatial variability. The considered biochemical parameters were: total organic matter, organic carbon, nitrogen, total proteins, available proteins, carbohydrates, lipids, total and available amino acids. The considered faunal parameters were the abundance and the biomass of both meio- and macrofauna. Our results contribute to unravel...
Tipo: Text Palavras-chave: Matière organique sédimentée; Benthos; Golfe du Lion; Acides aminés; Biodisponibilité; Sedimentary organics; Benthos; Gulf of Lion; Amino acids; Bioavailability.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/00321/43264/42995.pdf
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Modélisation bioénergétique de la variabilité des traits d’histoire de vie de l’anchois et de la sardine entre le golfe du Lion, le golfe de Gascogne et la Manche ArchiMer
Menu, Clara.
Small pelagic fish show a general decrease in size and body condition over the past two decades in the North-East Atlantic. The underlying factors are still not well understood, however recent studies point to a bottom-up control. In order to understand how the environment impacts the main biological functions, i.e. growth, reproduction and maintenance, we adopted a bioenergetic modelling framework based on the Dynamic Energy Budget theory. To improve the robustness of our study, we chose a comparative approach between two species, Engraulis encrasicolus and Sardina pilchardus, both living in three areas, namely the English Channel, the Bay of Biscay and the Gulf of Lion. Our model is calibrated over the Bay of Biscay and then applied to the other areas,...
Tipo: Text Palavras-chave: Engraulis encrasicolus; Sardina pilchardus; Théorie Dynamic Energy Budget; Traits d'histoire de vie; Manche; Golfe de Gascogne; Golfe du Lion; Engraulis encrasicolus; Sardina pilchardus; Dynamic Energy Budget theory; Life history traits; English Channel; Bay of Biscay; Gulf of Lion.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00667/77900/80092.pdf
Registros recuperados: 25
Primeira ... 12 ... Última
 

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