Zobrazeno 1 - 10 of 60 pro vyhledávání: '"Jacques Girardeau"'
1
Geochronology of the Tore-Madeira Rise seamounts and surrounding areas: a review
Autor: Fred Jourdan, Jacques Girardeau, Renaud E. Merle
Publikováno v: Australian Journal of Earth Sciences. 65:591-605
We present new 40Ar/39Ar data for two of the Tore-Madeira Rise (TMR) volcanic seamounts. A sample from Tore East seamount on the northern part of the TMR yielded an ultra-precise age of 80.50 ± 0.1...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12349c799a2e7be32f1dfc435672d5ba
https://doi.org/10.1080/08120099.2018.1471005
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2
Post-spreading deformation and associated magmatism along the Iberia-Morocco Atlantic margins: Insight from submarine volcanoes of the Tore-Madeira Rise
Autor: Florent Hinschberger, Guillaume Sanchez, Renaud E. Merle, Isabelle Thinon, Jacques Girardeau
Publikováno v: Marine Geology
Marine Geology, Elsevier, 2019, 407, pp.76-93. ⟨10.1016/j.margeo.2018.10.011⟩
International audience; A new high-resolution bathymetric map combined with a regional Digital Elevation Model (DEM) analysis reveal the modalities of occurrence and emplacement of post-spreading magmatism along the NNE-SSW oriented, 1000 km long Tor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db73046034932f957d071574e59073b4
https://hal.archives-ouvertes.fr/hal-02160203
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4
Occurrence of inherited supra-subduction zone mantle in the oceanic lithosphere as inferred from mantle xenoliths from Dragon Seamount (southern Tore–Madeira Rise)
Autor: E. J. Tronche, Renaud E. Merle, Mary-Alix Kaczmarek, Jacques Girardeau
Publikováno v: Journal of the Geological Society. 169:251-267
Spinel-bearing peridotite and pyroxenite xenoliths dredged from the Dragon Seamount (southern Tore–Madeira Rise, West Iberia and Morocco margin) give an insight into the composition of the underlying lithosphere. These xenoliths are devoid of evide
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f35d7773c4f979aebf9d09a3535c8d2c
https://doi.org/10.1144/0016-76492011-015
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5
Plume-Lithosphere Interaction during Migration of Cretaceous Alkaline Magmatism in SW Portugal: Evidence from U-Pb Ages and Pb-Sr-Hf Isotopes
Autor: Jacques Girardeau, Guy Cornen, Urs Schärer, Marion Grange, Renaud E. Merle
Publikováno v: Journal of Petrology
Journal of Petrology, Oxford University Press (OUP), 2010, 51 (5), pp.1143-1170. ⟨10.1093/petrology/egq018⟩
Large massifs of alkaline rocks are exposed along ∼250 km of the Atlantic coast of Portugal. Their origin is still poorly understood, including the precise timing of their emplacement and their rel ...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37776dd5f73ce18ba6b78860d10886ae
https://doi.org/10.1093/petrology/egq018
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6
Evidence of multi-phase Cretaceous to Quaternary alkaline magmatism on Tore–Madeira Rise and neighbouring seamounts from 40 Ar/ 39 Ar ages
Autor: Marion Grange, Andrea Marzoli, Fred Jourdan, Jacques Girardeau, Renaud E. Merle, Paul R. Renne
Publikováno v: Journal of the Geological Society. 166:879-894
The Tore–Madeira Rise is a seamount chain located 300 km off the Portugal and Morocco coasts attributed to hotspot activity. U–Pb ages of lavas from the northern and central Tore–Madeira Rise range between 103 and 80.5 Ma whereas 40 Ar/ 39 Ar a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68d81dc710151fb1505eaf490940ccbf
https://doi.org/10.1144/0016-76492008-060
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7
Mantle segmentation along the Oman ophiolite fossil mid-ocean ridge
Autor: Laurent Le Mée, Christophe Monnier, Jacques Girardeau
Publikováno v: Nature
Nature, Nature Publishing Group, 2004, 432, pp.167-172
It has been difficult to relate the segmentation of mid-ocean ridges to processes occurring in the Earth's underlying mantle, as the mantle is rarely sampled directly and chemical variations observed in lavas at the surface are heavily influenced by
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8123bc0adf387d84b7ffad228a1fb2f4
https://doi.org/10.1038/nature03075
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8
Dynamics and age of formation of the Seram-Ambon ophiolites (Central Indonesia)
Autor: Christophe Monnier, Hariady Permana, Jacques Girardeau, Jean-Pierre Réhault, J. Cotten, Hervé Bellon
Publikováno v: Bulletin de la Société Géologique de France. 174:529-543
The Seram-Ambon ophiolitic series comprise peridotites, websterites, gabbros and lavas. Petro-geochemical data show that the peridotites are weakly depleted rocks, except for the rare Cpx-free harzburgites. They underwent a sub-solidus metamorphic re
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c17e453bbaa7b5f43371c2592a7a7ec7
https://doi.org/10.2113/174.6.529
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9
Cartography of the Ronda peridotite (Spain) by hyperspectral remote sensing
Autor: Patrick Launeau, Christophe Sotin, Jacques Girardeau
Publikováno v: Bulletin de la Société Géologique de France. 173:491-508
The Ronda Peridotite, south of Andalusia (Spain), was imaged by AVIRIS in 1991 and partially sampled by us in the field with a GER 3700 spectrometer in 1997 in order to get experience in processing hyperpectral images of planetary surfaces with probe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b02ea623588b82b575f43819e6baf2f6
https://doi.org/10.2113/173.6.491
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