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<identifier>oai:HAL:hal-00823056v1</identifier>
<datestamp>2018-01-11</datestamp>
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<title lang=en>Fabrics of migmatites and the relationships between partial melting and deformation in high-grade transpressional shear zones: The Espinho Branco anatexite (Borborema Province, NE Brazil)</title>
<creator>Viegas, Luis Gustavo F.</creator>
<creator>Archanjo, Carlos J.</creator>
<creator>Vauchez, Alain</creator>
<contributor>Instituto de Geociências, University of Sao Paulo ; Université du Québec</contributor>
<contributor>Instituto de Geociências, University Sao Paolo ; Université du Québec</contributor>
<contributor>Manteau et Interfaces ; Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS) - Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 0191-8141</source>
<source>Journal of Structural Geology</source>
<publisher>Elsevier</publisher>
<identifier>hal-00823056</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00823056</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00823056</source>
<source>Journal of Structural Geology, Elsevier, 2013, 48, pp.45-56. 〈10.1016/j.jsg.2012.12.008〉</source>
<identifier>DOI : 10.1016/j.jsg.2012.12.008</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsg.2012.12.008</relation>
<language>en</language>
<subject lang=it>Migmatite</subject>
<subject lang=it>AMS</subject>
<subject lang=it>EBSD</subject>
<subject lang=it>Borborema Province</subject>
<subject lang=it>Petrofabrics</subject>
<subject lang=it>NE Brazil</subject>
<subject>[SDU.STU.PE] Sciences of the Universe [physics]/Earth Sciences/Petrography</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The Espinho Branco anatexite, located within a transcurrent, high-temperature shear zone in NE Brazil, was the subject of a comprehensive petrostructural study (Anisotropy of Magnetic Susceptibility - AMS, Anisotropy of Anhysteretic Remanence - AAR, Electron Backscatter Diffraction - EBSD) to evaluate the compatibility of different fabrics with the kinematics of melt deformation. Magnetite dominates susceptibilities larger than 1 mSI and biotite displays [001] lattice directions consistent with AMS k3 axes. In contrast, migmatites with a susceptibility lower than 0.5 mSI and no visible mesoscopic foliation provide crystallographic fabrics distinct from AMS and AAR. However, AAR remains consistent with the regional strain field. These results suggest that the correlation of field, AMS and crystallographic fabrics is not always straightforward despite the relatively simple organisation of the magnetic fabric in the anatexite. We conclude that AMS recorded the final stages of the strain field in the migmatite irrespective of its complex mesoscale structures and contrasting crystallographic fabrics.</description>
<date>2013-03</date>
</dc>
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