Crustal Anisotropy Beneath the Trans-North China Orogen and its Adjacent Areas From Receiver Functions

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dc.citation.articleNumber753612
dc.citation.journalTitleFrontiers in Earth Science
dc.citation.volumeNumber9
dc.contributor.authorXu, Xiaoming
dc.contributor.authorDing, Zhifeng
dc.contributor.authorLi, Li
dc.contributor.authorNiu, Fenglin
dc.date.accessioned2021-12-02T15:09:23Z
dc.date.available2021-12-02T15:09:23Z
dc.date.issued2021
dc.description.abstractAs an important segment of the North China Craton, the Trans-North China Orogen (TNCO) has experienced strong tectonic deformation and magmatic activities since the Cenozoic and is characterized by significant seismicity. To understand the mechanism of the crustal deformation and seismic hazards, we determined the crustal thickness (H), Vp/Vs ratio (κ) and crustal anisotropy (the fast polarization direction φ and splitting time τ) beneath the TNCO and its adjacent areas by analyzing receiver function data recorded by a dense seismic array. The (H, κ) and (φ, τ) at a total of 309 stations were measured, respectively. The Moho depth varies from ∼30 km beneath the western margin of the Bohai bay basin to the maximum value of ∼48 km beneath the northern Lüliang Mountain, which shows the positive and negative correlations with the elevation and the Bouguer anomaly. The average φ is roughly parallel to the strikes of the faults, grabens and Mountains in this study area, whereas a rotating distribution is shown around the Datong-Hannuoba volcanic regions. Based on the φ measured from the Moho Ps and SKS/SKKS phases, we propose that the crustal deformation and seismic hazards beneath the TNCO could be due to the counterclockwise rotation of the Ordos block driven by the far-field effects of the India-Eurasian collision.
dc.identifier.citationXu, Xiaoming, Ding, Zhifeng, Li, Li, et al.. "Crustal Anisotropy Beneath the Trans-North China Orogen and its Adjacent Areas From Receiver Functions." <i>Frontiers in Earth Science,</i> 9, (2021) Frontiers Media S.A.: https://doi.org/10.3389/feart.2021.753612.
dc.identifier.digitalfeart-09-753612
dc.identifier.doihttps://doi.org/10.3389/feart.2021.753612
dc.identifier.urihttps://hdl.handle.net/1911/111723
dc.language.isoeng
dc.publisherFrontiers Media S.A.
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleCrustal Anisotropy Beneath the Trans-North China Orogen and its Adjacent Areas From Receiver Functions
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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