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<identifier>oai:HAL:hal-00411334v1</identifier>
<datestamp>2018-01-11</datestamp>
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<metadata><dc>
<publisher>HAL CCSD</publisher>
<title lang=en>Large shear zones with no relative displacement</title>
<creator>Nicolas, Adolphe</creator>
<creator>Boudier, Françoise</creator>
<contributor>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)</contributor>
<description>International audience</description>
<source>ISSN: 0954-4879</source>
<source>EISSN: 1365-3121</source>
<source>Terra Nova</source>
<publisher>Wiley-Blackwell</publisher>
<identifier>hal-00411334</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00411334</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00411334</source>
<source>Terra Nova, Wiley-Blackwell, 2008, 20 (3), pp.200-205. 〈10.1111/j.1365-3121.2008.00806.x〉</source>
<identifier>DOI : 10.1111/j.1365-3121.2008.00806.x</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-3121.2008.00806.x</relation>
<language>en</language>
<subject lang=ro>Oman ophiolite</subject>
<subject lang=ro>oceanic ridge</subject>
<subject>[SDU.STU.TE] Sciences of the Universe [physics]/Earth Sciences/Tectonics</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>In the Oman ophiolite, the large scale Makhibiyah shear zone, in Wadi Tayin massif was generated with no or little relative motion between the two adjacent blocks, in contrast with what is reported from otherwise similar shear zones in deep crust and upper mantle. This shear zone is asymmetrical with, along one margin an asthenospheric mantle (similar to 1200 degrees C) and along the adjacent margin, a lithospheric mantle (similar to 1000 degrees C). Within the hotter side and with increasing shear strain, horizontal flow lines smoothly swing towards the shear zone direction before abutting against the wall of the lithosphere side. Profuse mafic melts issued from the hotter mantle are frozen in the shear zone by cooling along this lithospheric wall. Tectonic and magmatic activities are entirely localized within the asthenospheric compartment. Mantle flow lines were rotated, during their channelling along this NW-SE shear zone, in the NW and SE opposite directions. Depending on whether the flow lines are deviated NW or SE, dextral or sinistral shear sense is recorded in the shear band mylonitic peridotites. This demonstrates that the shear zone was not generated by strike-slip motion, a conclusion supported by regional observations.</description>
<date>2008</date>
</dc>
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