气候变化领域集成服务门户(CCPortal): Crustal Scale Imaging of the Arabia-Central Iran Collision Boundary Across the Zagros Suture Zone; West of Iran

CCPortal

DOI	10.1029/2019GL085921
	Crustal Scale Imaging of the Arabia-Central Iran Collision Boundary Across the Zagros Suture Zone; West of Iran
	Dashti F.; Lucente F.P.; Motaghi K.; Bianchi I.; Najafi M.; Govoni A.; Shabanian E.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:8
英文摘要	We calculate seismic velocity structure of the north Zagros suture zone, west Iran, to resolve the crustal features at the boundary of Arabian-Central Iranian collision. We compute teleseismic receiver functions (RFs) for 46 stations along a transect crossing the suture. Through harmonic analysis and inversion of the RF data, we obtain information on the characteristics of the suture zone at depth. The RFs and their harmonics show a low angle NE dipping boundary between the overriding layer and a midcrustal low velocity zone, which corresponds to the suture zone. The overriding high velocity feature (Vs ~ 3.8 km/s) is interpreted as an intermediate depth crustal complex exhumed close to the surface through imbricate thrust faulting and enhanced by crustal buoyancy due to continental underthrusting. Significant anisotropy is found above and below the suture zone: We interpret it in terms of slow-symmetry-axis anisotropy and derive clues on the ongoing deformation processes. ©2019. American Geophysical Union. All Rights Reserved.
英文关键词	Earth sciences; Geophysics; Deformation process; High velocity; Intermediate depths; Low velocity zones; Seismic velocity structure; Symmetry axis; Teleseismic receiver functions; Thrust faulting; Anisotropy; continental collision; crustal structure; harmonic analysis; imaging method; scale effect; suture zone; teleseismic wave; velocity structure; Arabian Peninsula; Iran; Zagros
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170448
作者单位	Department of Earth Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran; Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Nazionale Terremoti, Roma, Italy; Institut für Meteorologie und Geophysik, Universität Wien, Vienna, Austria
推荐引用方式 GB/T 7714	Dashti F.,Lucente F.P.,Motaghi K.,et al. Crustal Scale Imaging of the Arabia-Central Iran Collision Boundary Across the Zagros Suture Zone; West of Iran[J],2020,47(8).
APA	Dashti F..,Lucente F.P..,Motaghi K..,Bianchi I..,Najafi M..,...&Shabanian E..(2020).Crustal Scale Imaging of the Arabia-Central Iran Collision Boundary Across the Zagros Suture Zone; West of Iran.Geophysical Research Letters,47(8).
MLA	Dashti F.,et al."Crustal Scale Imaging of the Arabia-Central Iran Collision Boundary Across the Zagros Suture Zone; West of Iran".Geophysical Research Letters 47.8(2020).