气候变化领域集成服务门户(CCPortal): Tectonic exhumation across the Talesh-Alborz Belt, Iran, and its implication to the Arabia-Eurasia convergence

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DOI	10.1016/j.earscirev.2021.103776
	Tectonic exhumation across the Talesh-Alborz Belt, Iran, and its implication to the Arabia-Eurasia convergence
	Chu Y.; Allen M.B.; Wan B.; Chen L.; Lin W.; Talebian M.; Wu L.; Xin G.; Feng Z.
发表日期	2021
ISSN	0012-8266
卷号	221
英文摘要	Accommodation of plate convergence during the Arabia-Eurasia collision is expressed in the exhumation record of the broad collision zone. In order to better constrain the spatial and temporal patterns of exhumation, this paper presents new geochronology (zircon U-Pb) and thermochronology (zircon and apatite (U-Th)/He, and apatite fission track) data for 18 samples from the Talesh Mountains of northwest Iran. The Talesh and the adjacent Alborz Mountains form the northern side of the Iranian Plateau, itself a first order feature of the collision zone. Zircon U-Pb ages in the Talesh record late Neoproterozoic intrusion and metamorphism (~570 Ma), and a series of Jurassic, Cretaceous, and Oligocene intrusive events. Zircon U-Th/He ages are predominantly Mesozoic (150–90 Ma), whereas apatite (U-Th)/He ages are <20 Ma. Our inverse thermal modeling of apatite fission-track data suggests that the Talesh region shares a similar exhumation history with the Alborz that includes the Paleocene-early Eocene, Oligocene and Miocene events, but responds variably. When integrated with previous results, the combined data show a less exhumed zone in the Talesh and westernmost Alborz as a more rigid unit, and regionally enhanced exhumation by the Late Miocene. Late Miocene onset of deformation may relate to a re-organization of Arabia-Eurasia plate convergence. The causes of this re-organization are debated, but could include elevation of the Iranian Plateau to a level at which it resisted further thickening, causing deformation to be accommodated in other regions. © 2021 Elsevier B.V.
英文关键词	Alborz; Arabia-Eurasia convergence; Exhumation; Low temperature thermochronology; Talesh
语种	英语
来源期刊	EARTH-SCIENCE REVIEWS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/209195
作者单位	State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China; Department of Earth Sciences, University of Durham, Durham, DH1 3LE, United Kingdom; Innovation Academy of Earth Science, Chinese Academy of Sciences, Beijing, 100029, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Institute for Earth Sciences, Geological Survey of Iran, Azadi Square, Meraj Blvd, Tehran, Iran
推荐引用方式 GB/T 7714	Chu Y.,Allen M.B.,Wan B.,et al. Tectonic exhumation across the Talesh-Alborz Belt, Iran, and its implication to the Arabia-Eurasia convergence[J],2021,221.
APA	Chu Y..,Allen M.B..,Wan B..,Chen L..,Lin W..,...&Feng Z..(2021).Tectonic exhumation across the Talesh-Alborz Belt, Iran, and its implication to the Arabia-Eurasia convergence.EARTH-SCIENCE REVIEWS,221.
MLA	Chu Y.,et al."Tectonic exhumation across the Talesh-Alborz Belt, Iran, and its implication to the Arabia-Eurasia convergence".EARTH-SCIENCE REVIEWS 221(2021).