Zobrazeno 1 - 10 of 113 pro vyhledávání: '"Christian Chopin"'
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Akademický článek
The Maira-Sampeyre and Val Grana Allochthons (south Western Alps): review and new data on the tectonometamorphic evolution of the Briançonnais distal margin
Autor: André Michard, Stefan M. Schmid, Abdeltif Lahfid, Michel Ballèvre, Paola Manzotti, Christian Chopin, Salvatore Iaccarino, Davide Dana
Publikováno v: Swiss Journal of Geosciences, Vol 115, Iss 1, Pp 1-43 (2022)
Abstract Here we describe the structure, the high-pressure, low-temperature (HP-LT) metamorphism and tectonic evolution of the Briançonnais distal margin units from the south Western Alps. The studied area extends southwest of the Dora-Maira (U)HP b
Externí odkaz: https://doaj.org/article/63b502f1c63e46e88eeb9e498e8c35bd
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Elastic thermobarometry on Zircon-in-Garnet (ZiG) from the Brossasco-Isasca unit (Dora-Maira Massif, Western Alps)
Autor: Giulia Mingardi, Nicola Campomenosi, Mattia Luca Mazzucchelli, Christian Chopin, Marco Scambelluri, Matteo Alvaro
Here we studied metapelites from the ultrahigh-pressure (UHP) Brossasco-Isasca unit in the Dora-Maira Massif, Western Alps, combining zircon-in-garnet elastic geo-thermobarometry and phase equilibria modelling. We determined the residual strain and p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::064ec70039a1a30f16973918baa0a06d
https://doi.org/10.5194/egusphere-egu22-186
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5
Constraints on continental subduction in the Dora-Maira massif from rutile and titanite U-Pb geochronology
Autor: Guillaume Bonnet, Christian Chopin, Andrew Kylander-Clark, Bradley Hacker
The Dora-Maira massif (Western Alps) is among the most studied subducted continental terranes in the world. It consists of a tectonic stack of We here present new petrological observations and U-Pb geochronology on rutile and titanite to constrain th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a50a8f93880e300eb4058830783f6801
https://doi.org/10.5194/egusphere-egu21-15318
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6
Early exhumation of the Beni Bousera granulites and peridotites at the northern margin of the westernmost Tethys (Rif belt, Morocco); new constraints from overlying marbles
Autor: Omar Saddiqi, André Michard, Ahmed Chalouan, Michel Corsini, Fernando Bea, Aboubaker Farah, Pilar Montero, Christian Chopin
The West Mediterranean Alpine belts of the Rif and its northern counterpart, the Betics, are famous for the subcontinental peridotites exposed in their Internal zones (Alboran Domain), the Beni Bousera (BB) and Ronda massifs, respectively. The Beni B
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbecad7ca1972a9caa7434b72c851d59
https://doi.org/10.5194/egusphere-egu21-581
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8
A XANES and EPMA study of Fe 3+ in chlorite: substitutions, importance of oxychlorite and implications for cation site distribution and thermobarometry
Autor: Lorella Masci, Benoît Dubacq, Anne Verlaguet, Christian Chopin, Clément Herviou, Vincent De Andrade
Publikováno v: American Mineralogist
American Mineralogist, Mineralogical Society of America, 2019, 104 (3), pp.403-417. ⟨10.2138/am-2019-6766⟩
International audience; Chlorite is a ubiquitous product of metamorphism, alteration of magmatic rocks and hydrothermal processes owing to its large stability field and wide compositional range. Its composition is governed by several substitutions an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::662246d69f76c5265c5503cfb8e25407
https://hal.sorbonne-universite.fr/hal-02187082
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9
The Beni Bousera marbles, record of a Triassic-Early Jurassic hyperextended margin in the Alpujarrides-Sebtides units (Rif belt, Morocco)
Autor: André Michard, Pilar Montero, Omar Saddiqi, Ahmed Chalouan, Aboubaker Farah, Fernando Bea, Christian Chopin, Michel Corsini
Publikováno v: Bulletin de la Société Géologique de France
Bulletin de la Société Géologique de France, 2021, 192, pp.26. ⟨10.1051/bsgf/2021015⟩
BSGF-Earth Sciences Bulletin, Vol 192, p 26 (2021)
International audience; The timing and process of exhumation of the subcontinental peridotites of the Gibraltar Arc (Ronda, Beni Bousera) have been discussed extensively over the last decades. In this work, we contribute to this debate through the fi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ce844e4bbba6de7a2d4ca386f590532
https://doi.org/10.1051/bsgf/2021015
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10
High-temperature metamorphism during extreme thinning of the continental crust: a reappraisal of the North Pyrenean passive paleomargin
Autor: Marc Poujol, Jean-Claude Ringenbach, Yves Lagabrielle, Patrick Monié, Abdeltif Lahfid, M de St Blanquat, Emmanuel Masini, Camille Clerc, Philippe Boulvais, Christian Chopin
Publikováno v: Solid Earth, Vol 6, Iss 2, Pp 643-668 (2015)
Solid Earth
Solid Earth, European Geosciences Union, 2015, 6 (2), pp.643-668. ⟨10.5194/se-6-643-2015⟩
Solid Earth, 2015, 6 (2), pp.643-668. ⟨10.5194/se-6-643-2015⟩
An increasing number of field examples in mountain belts show that the formation of passive margins during extreme continent thinning may occur under conditions of high to very high thermal gradient beneath a thin cover of syn-rift sediments. Orogeni
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c6e65ddd248e3937e4732225390e3a8
https://www.solid-earth.net/6/643/2015/
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