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Bulk chemistry and Hf isotope ratios of the almogholagh intrusive complex, western Iran: a consequence of an extensional tectonic regime in the Late Jurassic

文献类型：期刊论文

作者Sarjoughian, Fatemeh5; Pourkarim, Sholeh5; Esmaeili, Rasoul4; Ao, Songjian3; Xiao, Wenjiao2,3; Lentz, David R.1
刊名INTERNATIONAL GEOLOGY REVIEW
出版日期2022-08-26
页码22
ISSN号0020-6814
关键词Hf isotopes extensional setting almogholagh batholith Sanandaj-Sirjan zone Jurassic magmatism
DOI10.1080/00206814.2022.2114020
英文摘要The Almogholagh Intrusive Complex (AIC) in the central part of the Sanandaj-Sirjan zone (C-SaSZ) includes gabbros to granites. Zircon U-Pb dating of mafic, intermediate, and felsic intrusions yield age of 146 to 141 Ma (Late Jurassic-Early Cretaceous). Bulk chemistry shows a wide range for SiO2 (46.8 to 73.3 wt.%), MgO (0.08 to 8.95 wt.%), and Fe2O3(T) (0.47 to 9.25 wt.%) and also alkali elements ranging from 3.59 to 10.12 wt.%. These rocks are characterized by a high content of large-ion lithophile elements (LILEs; e.g. Rb, U, Th, and K) and LREEs with weak Nb and Ta negative anomalies, showing many similarities to an extensional setting. The Hf-176/Hf-177 ratios vary from 0.282802 to 0.282985 with positive epsilon Hf-(t) values from + 1.67 to +10.74 (avg: 7.85). Trace-element and isotope ratios modelling indicate that the AIC mafic-intermediate rocks were generated by partial melting of spinel lherzolite and then underwent considerable crustal contamination. The present work in combination with previous data confirm an extensional tectonic regime for the northern part of the C-SaSZ during the Late Jurassic to Early Cretaceous. Magmatic differentiation with crustal contamination played a fundamental role in the wide compositional range from mafic to felsic types that formed the AIC.
WOS关键词SANANDAJ-SIRJAN ZONE ; LARGE IGNEOUS PROVINCE ; EARLY CRETACEOUS SUBDUCTION ; HIGH-FIELD STRENGTH ; ARC BASIN BASALTS ; ZIRCON U-PB ; NW IRAN ; CONTINENTAL-CRUST ; TRACE-ELEMENT ; I-TYPE
资助项目National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41822204] ; National Key R and D Program of China[2017YFC0601206] ; 'Light of West China' Program of Chinese Academy of Sciences (CAS)[2017-XBQNXZ-B-013] ; 'Light of West China' Program of Chinese Academy of Sciences (CAS)[2018-XBYJRC-003] ; Project of China-Pakistan Joint Research Center on Earth Sciences, CAS[131551KYSB20200021]
WOS研究方向Geology
语种英语
出版者TAYLOR & FRANCIS INC
WOS记录号WOS:000844114200001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R and D Program of China ; National Key R and D Program of China ; 'Light of West China' Program of Chinese Academy of Sciences (CAS) ; 'Light of West China' Program of Chinese Academy of Sciences (CAS) ; Project of China-Pakistan Joint Research Center on Earth Sciences, CAS ; Project of China-Pakistan Joint Research Center on Earth Sciences, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R and D Program of China ; National Key R and D Program of China ; 'Light of West China' Program of Chinese Academy of Sciences (CAS) ; 'Light of West China' Program of Chinese Academy of Sciences (CAS) ; Project of China-Pakistan Joint Research Center on Earth Sciences, CAS ; Project of China-Pakistan Joint Research Center on Earth Sciences, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R and D Program of China ; National Key R and D Program of China ; 'Light of West China' Program of Chinese Academy of Sciences (CAS) ; 'Light of West China' Program of Chinese Academy of Sciences (CAS) ; Project of China-Pakistan Joint Research Center on Earth Sciences, CAS ; Project of China-Pakistan Joint Research Center on Earth Sciences, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R and D Program of China ; National Key R and D Program of China ; 'Light of West China' Program of Chinese Academy of Sciences (CAS) ; 'Light of West China' Program of Chinese Academy of Sciences (CAS) ; Project of China-Pakistan Joint Research Center on Earth Sciences, CAS ; Project of China-Pakistan Joint Research Center on Earth Sciences, CAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/108408]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Sarjoughian, Fatemeh
作者单位1.Univ New Brunswick, Dept Earth Sci, Brunswick, NB E3B 5A3, Canada
2.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Univ Zanjan, Fac Sci, Dept Geol, Zanjan, Iran
5.Univ Kurdistan, Fac Sci, Dept Earth Sci, Sanandaj, Iran
推荐引用方式
GB/T 7714		 Sarjoughian, Fatemeh,Pourkarim, Sholeh,Esmaeili, Rasoul,et al. Bulk chemistry and Hf isotope ratios of the almogholagh intrusive complex, western Iran: a consequence of an extensional tectonic regime in the Late Jurassic[J]. INTERNATIONAL GEOLOGY REVIEW,2022:22.
APA Sarjoughian, Fatemeh,Pourkarim, Sholeh,Esmaeili, Rasoul,Ao, Songjian,Xiao, Wenjiao,&Lentz, David R..(2022).Bulk chemistry and Hf isotope ratios of the almogholagh intrusive complex, western Iran: a consequence of an extensional tectonic regime in the Late Jurassic.INTERNATIONAL GEOLOGY REVIEW,22.
MLA Sarjoughian, Fatemeh,et al."Bulk chemistry and Hf isotope ratios of the almogholagh intrusive complex, western Iran: a consequence of an extensional tectonic regime in the Late Jurassic".INTERNATIONAL GEOLOGY REVIEW (2022):22.

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来源：地质与地球物理研究所

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