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| Proust, Jean-noel; Lamarche, Geoffroy; Migeon, Sébastien; Neil, Helen. |
| Many countries have recognized climate change due to human activities as one of the most critical issues facing the modern world. However, validating predictive models of the potential anthropogenic impact on shaping the Earth's surface requires the examination and documentation of analogous tectonic and climate changes of the past, working with the paradigm that past environmental changes are keys to understanding the future. A France-New Zealand research program, which also involves institutions from several other countries, aims to disentangle the impact of tectonics and climate on the landscape evolution of New Zealand over the past million years, at a very high resolution timescale—with steps as small as 100 years, i.e., relating to events such as... |
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| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/00248/35892/34428.pdf |
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| Migeon, Sébastien; Mulder, Thierry; Savoye, Bruno; Sage, Françoise. |
| The Var turbidite system is a small sandy system located in the Ligurian Basin. It was deposited during the Pliocene-Quaternary in a flat-floored basin formed during the Messinian salinity crisis. The system was fed through time by the Var and Paillon canyons that connect directly to the Var and Paillon rivers. It is still active during the present sea-level highstand. Two main mechanisms are responsible for gravity-flow triggering in the Var turbidite system: (1) mass-wasting events affect mainly the upper part of the continental slope, in areas where volumes of fresh sediment delivered by rivers are highest, and result from the under-consolidation state of slope sediments and earthquakes, and (2) high-magnitude river floods resulting from melting of snow... |
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Palavras-chave: Geomorphology; Sediment waves; Turbidity; Mediterranean sea; Ligurian basin. |
| Ano: 2006 |
URL: https://archimer.ifremer.fr/doc/2006/publication-2258.pdf |
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| Migeon, Sébastien. |
| Les modèles universalistes, proposés depuis le début des années 70 pour prédire les répartitions et géométries des corps sédimentaires en domaine profond, ont progressivement montré leur limite au fur et à mesure que notre perception de ces environnements s'est accrue. Ces modèles sont maintenant plus ou moins abandonnés au profit de modèles régionaux, basés sur l'étude séparée des différents corps ou "objets", qui constituent l'environnement. |
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| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00034/14536/11819.pdf |
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