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| Chavagnac, Valérie; Sarradin, Pierre-marie. |
| As part of the evolution plan of the French Oceanographic Fleet, the Directory Steering Committee and the MESRI have confirmed in March 2018 to withdraw the usage of the submarine HOV Nautile in the medium term and to begin investigating of a “scenario with two deep-sea ROVs”, including the revamping and modernizing of the ROV Victor6000. The outcomes are subject to the positive accreditation by the Direction Steering Committee of the initial (Phase 0) conclusions to be carried out by the Fleet Directorate, so as to assess its technical and budgetary feasibility. The technical Phase 0 of this project had to take into consideration the current technological advances (marine instrumentation or in other domains) or early-stage developments, as well as the... |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00594/70657/68848.pdf |
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| Rommevaux, Céline; Henri, Pauline; Degboe, Jefferson; Chavagnac, Valérie; Lesongeur, Francoise; Godfroy, Anne; Boulart, Cedric; Destrigneville, Christine; Castillo, Alain. |
| The mixing zone between high temperature hydrothermal fluids and seawater produces redox gradients, promoting the development of unique ecosystems based on chemotrophy. The structure of microbial communities depends on their environment, which can vary according to space and time. Hydrothermal circulation within the oceanic crust determines the chemical composition and flow of fluids, depending on underground events (earthquakes, volcanic episodes....), and impacts the development of microbial communities. This link between hydrothermal vent communities and deep geological events is the focus of the present study, the first of its kind for slow‐spreading ridge. In this study, we present a unique set of multidisciplinary data collected from 2008 to 2011 on... |
| Tipo: Text |
Palavras-chave: Lucky Strike; Magmatic degassing; Microbial community structure; Multidisciplinary study. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00500/61174/64657.pdf |
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| Cannat, Mathilde; Sarradin, Pierre-marie; Blandin, Jerome; Ballu, Valérie; Barreyre, Thibaut; Chavagnac, Valérie; Colaco, Ana; Crawford, Wayne; Daniel, Romuald; Escartin, Javier; Legrand, Julien; Matabos, Marjolaine; Rommevaux, Céline; Roullet, Guillaume; Reverdin, Gilles; Sarrazin, Jozee. |
| Tipo: Text |
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| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00353/46444/46194.pdf |
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