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Gardien, Veronique / Vanderhaeghe, Olivier / Arnaud, Nicolas / Cocherie, Alain / Grange, Marion / Lecuyer, Christophe - 2015Upper Carboniferous heating and melting of the middle orogenic crust associated with the emplacement of syntectonic granitoids are documented in the Upper Gneissic Unit of the Livradois area (central part of the French Massif Central). Crustal melting post-dates peak metamorphism conditions (800-...Contributeur (s):
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Leloup, P. H. / Maheo, G. / Arnaud, Nicolas / Kali, E. / Boutonnet, E. / Liu, Dunyi / Liu Xiaohan, / Li Haibing, - 2015International audienceContributeur (s):
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Boutonnet, E. / Arnaud, Nicolas / Guivel, C. / Lagabrielle, Yves / Scalabrino, Bruno / Espinoza, F. - 2015International audienceContributeur (s):
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Kali, E. / Leloup, P. H. / Arnaud, Nicolas / Maheo, G. / Liu, Dunyi / Boutonnet, E. / Van Der Woerd, J. / Liu, Xiaohan / Jing Liu-Zeng, / Li, Haibing - 2015International audienceContributeur (s):
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Shabanian, Esmaeil / Bellier, Olivier / Siame, Lionel / Arnaud, Nicolas / Abbassi, Mohammad R. / Cocheme, Jean-Jacques - 2015International audienceContributeur (s):
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Rosa-Costa, L. T. / Monie, Patrick / Lafon, J. M. / Arnaud, Nicolas - 2015A Ar-40/Ar-39 geochronological study was performed on amphibole and biotite from some representative units of distinct tectonic domains of the southeastern Guiana Shield, north of the Amazonian Craton, the Amapa Block and the Carecuru Domain. In the AmapA Block, an Archean continental block...Contributeur (s):
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Maurel, O. / Monie, Patrick / Pik, R. / Arnaud, Nicolas / Brunel, Maurice / Jolivet, Marc - 2015Vertical displacements on the SW-NE T (e) over capt fault (Eastern Pyrenees Axial Zone, France), which separates the Variscan Canigou-Caranca and Mont-Louis massifs, were constrained using a thermochronologic multi-method approach. Ar-40/Ar-39 data from the granitic Mont-Louis massif record its...Contributeur (s):
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Li, H. B. / Valli, F. / Arnaud, Nicolas / Chen, S. Y. / Xu, Z. Q. / Tapponnier, P. / Lacassin, R. / Si, J. L. / Qiu, Z. L. - 2015The Karakorum Fault zone (KFZ), lying in the west of the Tibetan plateau, is an important dextral strike-slip fault and the important northern geological boundary of the west Himalaya. In the AyilaRi' gyu Range-Gai Basin area lying in the southeast of the KFZ, Ar-40/Ar-39 thermochronologic...Contributeur (s):
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Arnaud, Nicolas - 2015Le temps géologique n'est pas le temps des hommes. Notre histoire se raconte en années, siècles, millénaires, celle de la Terre en millions et milliards d'années. Mais quelle horloge utiliser pour dater les évènements géologiques ? L'évolution a d'abord servi d'échelle de...Contributeur (s):
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Gébelin, Aude / Brunel, Maurice / Monié, Patrick / Faure, Michel / Arnaud, Nicolas - 2015New structural, microstructural, and 40Ar/39Ar data from the NW Massif Central (France) provide additional constraints on the timing and tectonic setting of late Variscan granite magmatism. Previous studies had emphasized the role of late orogenic extension in the emplacement of granite plutons in...Contributeur (s):
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Jolivet, Marc / Labaume, Pierre / Monie, Patrick / Brunel, Maurice / Arnaud, Nicolas / Campani, M. - 2015In this work we combined apatite fission track and biotite/K-feldspar 40Ar/39Ar ages with tectonic data in the west central part of the Axial Zone of the Pyrenees. We discuss the exhumation ages and rates of the Néouvielle, Bordère-Louron, and Bielsa Variscan granites and their relationships with...Contributeur (s):
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Leloup, Philippe-Hervé / Arnaud, Nicolas / Lacassin, R. / Sobel, E. R. - 2015Contributeur (s):
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Li, H. B. / Valli, F. / Liu, D. Y. / Xu, Z. Q. / Yang, J. S. / Arnaud, Nicolas / Tapponnier, P. / Lacassin, R. / Chen, S. Y. / Qi, X. X. - 2015The Karakorum Fault zone (KFZ) plays an important role in understanding the formation, evolvement and deformation of the Tibetan Plateau. The high-T dextral shearing metamorphic rocks, e.g., mylonites or mylonitized gneisses-granites, locally crop out along the southeastern part of the KFZ in the...Contributeur (s):
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Gébelin, Aude / Brunel, Maurice / Faure, Michel / Arnaud, Nicolas / Chen, Yan / Martelet, Guillaume / Monié, Patrick / Roger, Françoise - 2015Hercynian leucogranitic plutons crop out over large areas in the French Massif Central hiding the earlier crustal structures. In the Limousin area, these granitic intrusions are spatially associated with normal faults and major strike-slip shear zones that continue the South Armorican shear zone....Contributeur (s):
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This paper deals with the use of a magnetic levitation system as a part of a multi-stage seismic attenuator for gravitational wave interferometric antennas. The proposed configuration uses permanent magnets in attraction to balance the suspended weight, plus a closed loop position control to obtain...Contributeur (s):