دورية أكاديمية
Impact of gneissic layering and localized incipient melting upon melt flow during experimental deformation of migmatites
| العنوان: | Impact of gneissic layering and localized incipient melting upon melt flow during experimental deformation of migmatites |
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| المؤلفون: | Ganzhorn, Anne-Céline, Trap, Pierre, Arbaret, Laurent, Champallier, Rémi, Fauconnier, Julien, Labrousse, Loic, Prouteau, Gaëlle |
| المساهمون: | Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO), Bureau de Recherches Géologiques et Minières (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences de la Terre de Paris (iSTeP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Magma - UMR7327, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Laboratoire Chrono-environnement (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC), European Project: 290864,EC:FP7:ERC,ERC-2011-ADG_20110209,RHEOLITH(2012) |
| المصدر: | ISSN: 0191-8141 ; Journal of Structural Geology ; https://insu.hal.science/insu-01275193Test ; Journal of Structural Geology, 2016, 85, pp.68-84. ⟨10.1016/j.jsg.2016.02.004⟩. |
| بيانات النشر: | HAL CCSD Elsevier |
| سنة النشر: | 2016 |
| المجموعة: | Archive de l'Observatoire de Paris (HAL) |
| مصطلحات موضوعية: | anisotropy, natural gneiss, pure-shear deformation, partially molten, [SDU]Sciences of the Universe [physics], [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
| الوصف: | International audience ; In this study, we test experimentally the role of compositional layering as a key parameter for controlling melt flow in a natural migmatite during coaxial deformation. We performed in – situ pure-shear experiments on two natural gneisses. The first gneiss is weakly foliated with minerals homogenously distributed. The second gneiss shows a pronounced compositional layering of alternating quartz – feldspar – rich and biotite – muscovite – rich layers. Experimental conditions were selected to obtain homogeneous melt distribution in the homogeneous gneiss and heterogeneous melt distribution in the layered gneiss. Initial melt distribution is not modified by deformation in experiments on the homogeneous gneiss, implying that melting products did not migrate from their initiation sites. In contrast, melt flowed in shear zones or in inter-boudin positions during experimental deformation of the heterogeneous gneiss. These experiments attest to the strong influence of initial gneissic layering on melting pattern, melt segregation and flow during deformation of partially molten rocks. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/grantAgreement/EC/FP7/290864/EU/Rheology of the continental lithosphere, a geological, experimental and numerical approach/RHEOLITH; insu-01275193; https://insu.hal.science/insu-01275193Test; https://insu.hal.science/insu-01275193/documentTest; https://insu.hal.science/insu-01275193/file/SG-D-15-00080R3.pdfTest |
| DOI: | 10.1016/j.jsg.2016.02.004 |
| الإتاحة: | https://doi.org/10.1016/j.jsg.2016.02.004Test https://insu.hal.science/insu-01275193Test https://insu.hal.science/insu-01275193/documentTest https://insu.hal.science/insu-01275193/file/SG-D-15-00080R3.pdfTest |
| حقوق: | http://creativecommons.org/licenses/by-nc-ndTest/ ; info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.9025859E |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.jsg.2016.02.004 |
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