Search Results - "Vauchez, A."

The Lherz spinel lherzolite: Refertilized rather than pristine mantle by Le Roux, V., Bodinier, J.-L., Tommasi, A., Alard, O., Dautria, J.-M., Vauchez, A., Riches, A.J.V.

“…Differentiation of the Earth's mantle and formation of continental and oceanic crust occur principally through partial melting and extraction of basaltic melt…”
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Deformation and Reactive Melt Transport in the Mantle Lithosphere above a Large-scale Partial Melting Domain: the Ronda Peridotite Massif, Southern Spain by Soustelle, V., Tommasi, A., Bodinier, J. L., Garrido, C. J., Vauchez, A.

“…The Ronda peridotite massif in Southern Spain shows a well-defined ‘recrystallization’ front that separates a large-scale partial melting domain formed at the…”
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Feedback between melt percolation and deformation in an exhumed lithosphere–asthenosphere boundary by Le Roux, V., Tommasi, A., Vauchez, A.

“…Interactions between deformation and melt percolation yield important consequences for the evolution of the mantle lithosphere, controlling its composition and…”
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Thermal conditions during deformation of partially molten crust from TitaniQ geothermometry: rheological implications for the anatectic domain of the Araçuaí belt, eastern Brazil by Cavalcante, G. C. G., Vauchez, A., Merlet, C., Egydio-Silva, M., Bezerra de Holanda, M. H., Boyer, B.

“…During the Neoproterozoic orogeny, the middle crust of the Araçuaí belt underwent widespread partial melting. At the regional scale, this anatectic domain is…”
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Seismic anisotropy in the eastern United States: Deep structure of a complex continental plate by Barruol, Guilhem, Silver, Paul G., Vauchez, Alain

“…We have analyzed shear wave splitting recorded by portable and permanent broadband and long‐period stations located in the eastern United States. Teleseismic…”
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Why do continents break-up parallel to ancient orogenic belts? by Vauchez, A., Barruol, G., Tommasi, A.

“…ABSTRACT The frequently observed parallelism between rifts and the preexisting orogenic fabric of continents suggests that the inherited tectonic fabric of the…”
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Tectono-thermal evolution, magma emplacement, and shear zone development in the Caruaru area (Borborema Province, NE Brazil) by Neves, S.P., Vauchez, A., Feraud, G.

“…The Neoproterozoic Borborema Province (BP) in northeastern Brazil is characterized by a regional flat-lying foliation and by abundant magmatic rocks commonly…”
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Deformation regime variations in an arcuate transpressional orogen (Ribeira belt, SE Brazil) imaged by anisotropy of magnetic susceptibility in granulites by Egydio-Silva, Marcos, Vauchez, Alain, Raposo, Maria Irene B., Bascou, Jérôme, Uhlein, Alexandre

“…The Ribeira belt of southeastern Brazil displays an arcuate shape, with a structural trend that varies from ∼NS in the northern domain to ENE–WSW in the…”
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The Borborema shear zone system, NE Brazil by Vauchez, A., Neves, S., Caby, R., Corsini, M., Egydio-Silva, M., Arthaud, M., Amaro, V.

“…The Neoproterozoic evolution of the Borborema Province is characterized by the development of a continental-scale network of transcurrent shear zones. These…”
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Shear zone-controlled magma emplacement or magma-assisted nucleation of shear zones? Insights from northeast Brazil by Neves, S.P., Vauchez, A., Archanjo, C.J.

“…In the Borborema province of northeast Brazil, neoproterozoic granitoids and large-scale transcurrent shear zones are spatially associated, suggesting a…”
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Successive mixing and mingling of magmas in a plutonic complex of Northeast Brazil by Neves, S.P., Vauchez, A.

“…Field and petrographic evidence together with major element geochemistry suggest that mixing and mingling of magmas of contrasting compositions were important…”
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Shear wave splitting around the northern Atlantic: frozen Pangaean lithospheric anisotropy? by Barruol, G., Helffrich, G., Vauchez, A.

“…Although the number of teleseismic shear wave splitting measurements has considerably increased world-wide during the last decade, there is no consensus on a…”
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Thermal history of the Pan-African/Brasiliano Borborema Province of northeast Brazil deduced from 40Ar/ 39Ar analysis by Corsini, M., de Figueiredo, L. Lambert, Caby, R., Féraud, G., Ruffet, G., Vauchez, A.

“…Detailed step heating 40Ar/ 39Ar analyses were performed on different minerals from magmatic and metamorphic rocks of the Borborema Province. This region,…”
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Shear-wave splitting in the Appalachians and the Pyrenees: importance of the inherited tectonic fabric of the lithosphere by Vauchez, A., Barruol, G.

“…Splitting of teleseismic shear waves has been measured in the Appalachians (eastern USA) and the Pyrenees (western Europe) using data recorded by permanent and…”
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Comment on "SKS splitting beneath continental rifts zones" by Gao et al by Vauchez, Alain, Barruol, Guilhem, Nicolas, Adolphe

“…As previously suggested by many authors, shear wave splitting rneasurernents certainly provide the best insights on the tectonic structure (or fabric) of the…”
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Mineralogical and geochemical study of serpentinized peridotites from the North-Western Pyrenees: New insights on serpentinization along magma-poor continental passive margins by Tichadou, C., Godard, M., Muñoz, M., Labaume, P., Vauchez, A., Gaucher, E.C., Calassou, S.

“…The peridotite massifs from the North-Western Pyrenean belt are fragments of a short-lived mid-Cretaceous hyper-extended rift inverted by the Pyrenean orogeny…”
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Slow cooling and crystallization of the roots of the Neoproterozoic Araçuaí hot orogen (SE Brazil): Implications for rheology, strain distribution, and deformation analysis by Vauchez, Alain, Hollanda, Maria Helena B.M., Monié, Patrick, Mondou, Mathieu, Egydio-Silva, Marcos

“…The Araçuaí-Ribeira belt formed during the amalgamation of West Gondwana in the late Neoproterozoic. Its evolution included a main tectonometamorphic peak at…”
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Magma emplacement and shear zone nucleation and development in northeast Brazil (Fazenda Nova and Pernambuco shear zones; State of Pernambuco) by Neves, S.P., Vauchez, A.

“…The Fazenda Nova and Serra da Japeganga batholiths and the Toritama pluton form a large granitoid massif located in the eastern part of the Borborema Province…”
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Continental rifting parallel to ancient collisional belts: an effect of the mechanical anisotropy of the lithospheric mantle by Tommasi, Andréa, Vauchez, Alain

“…Analysis of major rift systems suggests that the preexisting structure of the lithosphere is a key parameter in the rifting process. Rift propagation is not…”
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The Rubim Pluton (Minas Gerais, Brazil): a petrostructural and magnetic fabric study by Uhlein, A., Egydio-Silva, M., Bouchez, J.L., Vauchez, A.

“…The Rubim pluton (160 km 2), a suite of diorite and porphyritic granodiorite bodies, was subject to magnetic susceptibility and anisotropy studies. The pluton…”
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