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Enregistrements stratigraphiques des cycles climatiques et eustatiques du Quaternaire terminal - Modélisations de la marge continentale du Golfe du Lion. ArchiMer
Jouet, Gwenael.
Earth's climate oscillated during the Late Quaternary following the major glacial-interglacial cycles. These well-known variations influenced continental and marine sedimentary records worldwide. However, the associated changes of global sea-level and of environmental factors are not precisely documented, neither are their stratigraphic signatures. The extensive geophysical and sedimentological investigations carried out in the Gulf of Lions (Western Mediterranean) since the early 90's allow us to explore the expanded sedimentary records preserved on this continental margin during the Late Quaternary. The combination of high sediment supply (largely from Alpine glaciers) and significant subsidence favoured an almost continuous record, at the shelf edge, of...
Tipo: Text Palavras-chave: Late Quaternary; Lithology; Seismic; Gulf of Lions; Stratigraphic modelling; Glacio Eustatic cycles; Climate; Deltaic margin; Sequence Stratigraphy; Quaternaire terminal; Lithologie; Sismique; Golfe du Lion; Modélisations stratigraphiques; Cycles Glacio Eustatiques; Climat; Marge deltaïque; Stratigraphie Séquentielle.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-3692.pdf
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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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