untitled
<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd>
<responseDate>2018-01-15T18:20:58Z</responseDate>
<request identifier=oai:HAL:hal-01389713v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request>
<GetRecord>
<record>
<header>
<identifier>oai:HAL:hal-01389713v1</identifier>
<datestamp>2018-01-11</datestamp>
<setSpec>type:ART</setSpec>
<setSpec>subject:sdu</setSpec>
<setSpec>collection:UNIV-REUNION</setSpec>
<setSpec>collection:CNRS</setSpec>
<setSpec>collection:UNIV-AG</setSpec>
<setSpec>collection:GM</setSpec>
<setSpec>collection:AGROPOLIS</setSpec>
<setSpec>collection:INSU</setSpec>
<setSpec>collection:B3ESTE</setSpec>
<setSpec>collection:UNIV-MONTPELLIER</setSpec>
</header>
<metadata><dc>
<publisher>HAL CCSD</publisher>
<title lang=en>A quantitative evaluation of the contribution of crustal rocks to the shear-wave splitting of teleseismic SKS waves</title>
<creator>Barruol, Guilhem</creator>
<creator>Mainprice, David</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>
<contributor>Laboratoire de Tectonophysique (Tectonophysique) ; Université Montpellier 2 - Sciences et Techniques (UM2) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 0031-9201</source>
<source>EISSN: 0031-9201</source>
<source>Physics of the Earth and Planetary Interiors</source>
<publisher>Elsevier</publisher>
<identifier>hal-01389713</identifier>
<identifier>http://hal.univ-reunion.fr/hal-01389713</identifier>
<identifier>http://hal.univ-reunion.fr/hal-01389713/document</identifier>
<identifier>http://hal.univ-reunion.fr/hal-01389713/file/Barruol_SKS_crust_PEPI1993_hal.pdf</identifier>
<source>http://hal.univ-reunion.fr/hal-01389713</source>
<source>Physics of the Earth and Planetary Interiors, Elsevier, 1993, 78, pp.281 - 300. 〈10.1016/0031-9201(93)90161-2〉</source>
<identifier>DOI : 10.1016/0031-9201(93)90161-2</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/0031-9201(93)90161-2</relation>
<language>en</language>
<subject>[SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The seismic (elastic) properties of the crust have been modelled using hypothetical polycrystals with typical crustal compositions and commonly measured petrofabrics. This modelling allows us to better evaluate and quantify the crustal contribution to splitting of teleseismic SKS-waves. Mafic rocks such as anorthosite or pyroxene-bearing gabbros have complex S-waves properties, i.e. with small shear-wave anisotropies (< 3%) and without clear relationships between the fast shear-wave polarization plane orientations and the fabric. On the other hand foliated felsic rocks such as gneisses or schists and mafic rocks such as amphibole-bearing gabbros are strongly birefringent (anisotropies greater than 5%) and exhibit clear relationships with the structure. Biotite and amphibole preferred orientations clearly play a major rote in shear-wave splitting in crustal rocks. We show strong correlations between the orientation of the foliation and the amplitude of the delay time. Maximum delay time is systematically observed for waves propagating parallel to the foliation. The fast shear-wave is furthermore polarized parallel to the foliation plane. We calculate a delay time of about 0.1-0.2 s per 10 km of crustal rocks.</description>
<date>1993</date>
</dc>
</metadata>
</record>
</GetRecord>
</OAI-PMH>
