Petrology, geochemistry and zircon U-Pb dating of Band-e-Hezarchah metabasites (NE Iran): An evidence for back-arc magmatism along the northern active margin of Gondwana

doi:10.1016/j.chemer.2015.02.002

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Petrology, geochemistry and zircon U-Pb dating of Band-e-Hezarchah metabasites (NE Iran): An evidence for back-arc magmatism along the northern active margin of Gondwana
	Hosseini, Seyed Hossein 1; Sadeghian, Mahmoud 1; Zhai, Minggou 2,3; Ghasemi, Habibollah 1
刊名	CHEMIE DER ERDE-GEOCHEMISTRY
	2015
卷号	75 期号:2 页码:207-218
关键词	Back-arc magmatism U-Pb dating Band-e-Hezarchah metabasites Gondwana Iran
DOI	10.1016/j.chemer.2015.02.002
文献子类	Article
英文摘要	The Band-e-Hezarchah granitoids (BHG) is located in the northern margin of the central Iran, where the very old continental crust of Iran is found. The BHG mainly include granodiorite, granite and leucogranite. Small meta-gabbroic stocks and dykes are associated with BHG. U-Pb zircon dating of the BHG granites and metabasites yield U-238/Pb-206 crystallization ages of ca. 553.6 and 533.5 Ma respectively (Ediacaran-early Cambrian). The metabasites have calc-alkaline signature and their magmas seem to have originated from a mantle wedge above a subduction zone. These rocks are thought to be formed in a continental back-arc setting, related to the oblique subduction of Proto-Tethys oceanic lithosphere beneath the northern margin of Gondwanan supercontinent during Ediacaran-Cambrian time. The initial Sr-87/Sr-86 ratios and epsilon Nd (t) values for metabasites are change from 0.705 to 0.706 and -3.5 to -3.6 respectively. Sr-Nd isotope composition of metabasites indicates that these rocks were derived from a subcontinental lithospheric mantle source. The BHG and associated metabasites are coeval with other similar aged metagranites and gneisses from Iranian basements exposed in central Iran, Sanandaj-Sirjan and Alborz zones. These rocks were formed due to continental arc magmatism of Neoproterozoic-early Cambrian, bordering the northern active margin of Gondwana. (C) 2015 Elsevier GmbH. All rights reserved.
WOS关键词	WESTERN ANATOLIA ; NW TURKEY ; HF ; PETROGENESIS ; CONSTRAINTS ; EVOLUTION ; BASEMENT ; DIAGRAM ; ROCKS ; AGES
WOS研究方向	Geochemistry & Geophysics
语种	英语
WOS记录号	WOS:000357233200004
资助机构	Iran National Science Foundation(91000548) ; Iran National Science Foundation(91000548) ; State Key Laboratory of Continental Dynamics, Northwest University, Xian, China ; State Key Laboratory of Continental Dynamics, Northwest University, Xian, China ; Iran National Science Foundation(91000548) ; Iran National Science Foundation(91000548) ; State Key Laboratory of Continental Dynamics, Northwest University, Xian, China ; State Key Laboratory of Continental Dynamics, Northwest University, Xian, China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62330]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位	1.Univ Shahrood, Fac Earth Sci, Shahrood, Iran 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 3.NW Univ Xian, State Key Lab Continental Dynam, Xian 710069, Peoples R China
推荐引用方式 GB/T 7714	Hosseini, Seyed Hossein,Sadeghian, Mahmoud,Zhai, Minggou,et al. Petrology, geochemistry and zircon U-Pb dating of Band-e-Hezarchah metabasites (NE Iran): An evidence for back-arc magmatism along the northern active margin of Gondwana[J]. CHEMIE DER ERDE-GEOCHEMISTRY,2015,75(2):207-218.
APA	Hosseini, Seyed Hossein,Sadeghian, Mahmoud,Zhai, Minggou,&Ghasemi, Habibollah.(2015).Petrology, geochemistry and zircon U-Pb dating of Band-e-Hezarchah metabasites (NE Iran): An evidence for back-arc magmatism along the northern active margin of Gondwana.CHEMIE DER ERDE-GEOCHEMISTRY,75(2),207-218.
MLA	Hosseini, Seyed Hossein,et al."Petrology, geochemistry and zircon U-Pb dating of Band-e-Hezarchah metabasites (NE Iran): An evidence for back-arc magmatism along the northern active margin of Gondwana".CHEMIE DER ERDE-GEOCHEMISTRY 75.2(2015):207-218.