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dc.contributor.author Eakin, Caroline M.
dc.contributor.author Long, Maureen D.
dc.contributor.author Beck, Susan L.
dc.contributor.author Wagner, Lara S.
dc.contributor.author Tavera, Hernando
dc.contributor.author Condori Quispe, Cristobal
dc.date.accessioned 2018-09-11T19:32:39Z
dc.date.available 2018-09-11T19:32:39Z
dc.date.issued 2014-04-30
dc.identifier.govdoc index-oti2018 (NB)
dc.identifier.issn 19448007
dc.identifier.uri http://repositorio.igp.gob.pe/handle/IGP/2922
dc.description En: Geophysical Research Letters, v. 41, n. 10 (April 2014), p. 3438-3446. es_ES
dc.description.abstract "The dynamics of flat subduction, particularly the interaction between a flat slab and the overriding plate, are poorly understood. Here we study the (seismically) anisotropic properties and deformational regime of the mantle directly above the Peruvian flat slab. We analyze shear wave splitting from 370 local S events at 49 stations across southern Peru. We find that the mantle above the flat slab appears to be anisotropic, with modest average delay times (~0.28 s) that are consistent with ~4% anisotropy in a ~30 km thick mantle layer. The most likely mechanism is the lattice‐preferred orientation of olivine, which suggests that the observed splitting pattern preserves information about the mantle deformation. We observe a pronounced change in anisotropy along strike, with predominately trench‐parallel fast directions in the north and more variable orientations in the south, which we attribute to the ongoing migration of the Nazca Ridge through the flat slab system." es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher American Geophysical Union es_ES
dc.rights info:eu-repo/semantics/openAccess es_ES
dc.rights.uri http://creativecommons.org/licences/by-nc-nd/2.5/pe/ es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Losas (Geología estructural) es_ES
dc.subject Zonas de subducción es_ES
dc.subject Anisotropía es_ES
dc.subject Estaciones sismológicas es_ES
dc.subject Tierra (Planeta)--Manto es_ES
dc.subject Cordillera Central (Perú) es_ES
dc.subject Geología estructural--Perú es_ES
dc.title Response of the mantle to flat slab evolution: Insights from local S splitting beneath Peru es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Geología estructural es_ES
dc.subject.ocde Perú es_ES
dc.subject.ocde Sismología es_ES
dc.subject.ocde Física de suelos es_ES
dc.subject.ocde Región andina es_ES
dc.identifier.journal Geophysical Research Letters es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1002/2014GL059943 es_ES

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