Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/11561
DC FieldValueLanguage
dc.date.accessioned2018-03-30T06:51:50Zen
dc.date.available2018-03-30T06:51:50Zen
dc.date.issued2018en
dc.identifier.urihttp://hdl.handle.net/2122/11561en
dc.description.abstractThe anisotropy of seismic velocities in the mantle, when integrated with high-resolution tomographic models and geologic information, can be used to detect active mantle flows in complex plate boundary areas, providing new insights on the impact of mantle processes on the topography of mountain belts. Here we use a densely spaced array of temporary broadband seismic stations to analyze the seismic anisotropy pattern of the western Alpine region, at the boundary between the Alpine and Apenninic slabs. Our results are supportive of a poly- phase development of anisotropic mantle fabrics, possibly starting from the Jurassic to present. Geophysical data presented in this work, and geologic evidence taken from the literature, indicate that: (i) fossil fabrics formed during Tethyan rifting may be still preserved within the Alpine and Apenninic slabs; (ii) mantle deformation during Apenninic slab rollback is not compensated by a complete toroidal flow around the northern tip of the retreating slab; (iii) the previously observed continuous trend of anisotropy fast axes near-parallel to the western Alpine arc is confirmed. We observe that this arc-parallel trend of fast axes is located in correspondence to a low velocity anomaly in the European upper mantle, beneath regions of the Western and Ligurian Alps showing the highest uplift rates. We propose that the progressive rollback of the Apenninic slab, in the absence of a coun- terclockwise toroidal flow at its northern tip, induced a suction effect at the scale of the supraslab mantle. The resulting mantle flow pattern was characterized by an asthenospheric counterflow at the rear of the unbroken Western Alps slab and around its southern tip, and by an asthenospheric upwelling, mirrored by low P wave velocities, that would have favored the topographic uplift of the Alpine belt from the Mont Blanc to the Mediterranean sea.en
dc.language.isoEnglishen
dc.relation.ispartofTectonophysicsen
dc.relation.ispartofseries/731-732 (2018)en
dc.titleActive and fossil mantle flows in the western Alpine region unravelled by seismic anisotropy analysis and high-resolution P wave tomographyen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber35-47en
dc.subject.INGV04.Solid Earthen
dc.identifier.doi10.1016/j.tecto.2018.03.002en
dc.description.obiettivoSpecifico1T. Struttura della Terraen
dc.description.journalTypeJCR Journalen
dc.contributor.authorSalimbeni, Simoneen
dc.contributor.authorMalusa, Marco G.en
dc.contributor.authorZhao, Liangen
dc.contributor.authorGuillot, Stéphaneen
dc.contributor.authorPondrelli, Silviaen
dc.contributor.authorMargheriti, Luciaen
dc.contributor.authorPaul, Anneen
dc.contributor.authorSolarino, Stefanoen
dc.contributor.authorAubert, Coralieen
dc.contributor.authorDumont, Thierryen
dc.contributor.authorSchwartz, Stéphaneen
dc.contributor.authorWang, Qingchenen
dc.contributor.authorXu, Xiaobingen
dc.contributor.authorZheng, Tianyuen
dc.contributor.authorZhu, Rixiangen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia-
crisitem.author.orcid0000-0002-1077-5833-
crisitem.author.orcid0000-0001-7890-5668-
crisitem.author.orcid0000-0002-0851-7405-
crisitem.author.orcid0000-0003-3853-254X-
crisitem.author.orcid0000-0002-9577-1347-
crisitem.author.orcid0000-0003-4098-7076-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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