Precambrian evolution of the Chinese Central Tianshan Block: Constraints on its tectonic affinity to the Tarim Craton and responses to supercontinental cycles

doi:10.1016/j.precamres.2017.04.014

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

	Precambrian evolution of the Chinese Central Tianshan Block: Constraints on its tectonic affinity to the Tarim Craton and responses to supercontinental cycles
	Huang, Zongying 1,2,4; Long, Xiaoping 3; Wang, Xuan-Ce 4; Zhang, Yunying 1; Du, Long 1,2; Yuan, Chao 1; Xiao, Wenjiao 5
刊名	PRECAMBRIAN RESEARCH
	2017-07-01
卷号	295 页码:24-37
关键词	Chinese Central Tianshan Block Neoproterozoic Gneiss Precambrian Evolution Tectonic Affinity Supercontinent
ISSN号	0301-9268
DOI	10.1016/j.precamres.2017.04.014
文献子类	Article
英文摘要	As the southernmost continental fragment in the Central Asian Orogenic Belt (CAOB), the Chinese Central Tianshan Block (CTB) is essential for understanding the evolution of the CAOB. However, its tectonic affinity with the Tarim Craton and links with supercontinent cycles are not clear. Here, we present whole-rock geochemistry, zircon ages and Hf-in-zircon isotopic data for augen- and mylonitic granitic gneisses in the eastern Chinese Central Tianshan Block (ECTB). Zircon U-Pb dating reveals that the augen- and mylonitic gneisses formed at ca. 918 Ma and 896 Ma, respectively. The gneisses have REE and HFSEs patterns comparable to the upper continental crust. Their Cr and Ni contents are similar to those of the typical S-type granites in the Lachlan belt. These rocks exhibit evolved zircon epsilon(Hf)(t) values (-9.0 to +1.6), which are consistent with those values of coeval crustal-derived rocks within the CTB. Together with the occurrence of muscovite and the existences of Paleo- to Mesoproterozoic inherited zircons (2.21-1.25 Ga), the geochemical data indicate that protoliths of these gneisses are S-type granites. These results, compiled with published geochronological data, suggest that an Archean basement was most likely absent in the CTB. The basement rocks of the CTB were dominantly produced by crustal growth in the early Mesoproterozoic and then reworked at Neoproterozoic. We suggest that the Mesoproterozoic crustal growth and the early Neoproterozoic crustal reworking were likely related to the breakup of the Nuna (ca. 1.40 Ga) and the assembly of the Rodinia (1.00-0.88 Ga), respectively. Because the CTB displays different crustal evolution from the Tarim Craton, we conclude that these two blocks have no close tectonic affinity in the Precambrian. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	ZIRCON U-PB ; ASIAN OROGENIC BELT ; NEOPROTEROZOIC GRANITIC GNEISSES ; MAFIC-ULTRAMAFIC INTRUSIONS ; PLASMA-MASS SPECTROMETRY ; ISUA GREENSTONE-BELT ; A-TYPE GRANITES ; LU-HF ISOTOPE ; NW CHINA ; EASTERN TIANSHAN
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000402947200003
资助机构	National Basic Research Program of China(2014CB440801) ; National Natural Science Foundation of China(41421002 ; Australian Research Council (ARC) Future Fellowship(FT140100826) ; 41522202 ; 41373034) ; National Basic Research Program of China(2014CB440801) ; National Natural Science Foundation of China(41421002 ; Australian Research Council (ARC) Future Fellowship(FT140100826) ; 41522202 ; 41373034) ; National Basic Research Program of China(2014CB440801) ; National Natural Science Foundation of China(41421002 ; Australian Research Council (ARC) Future Fellowship(FT140100826) ; 41522202 ; 41373034) ; National Basic Research Program of China(2014CB440801) ; National Natural Science Foundation of China(41421002 ; Australian Research Council (ARC) Future Fellowship(FT140100826) ; 41522202 ; 41373034)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/52860]
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	Long, Xiaoping
作者单位	1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 10069, Peoples R China 3.Northwest Univ Xian, Dept Geol, State Key Lab Continental Dynam, Northern Taibai Str 229, Xian 710069, Peoples R China 4.Curtin Univ, Dept Appl Geol, Inst Geosci Res TIGeR, Perth, WA U1987, Australia 5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Huang, Zongying,Long, Xiaoping,Wang, Xuan-Ce,et al. Precambrian evolution of the Chinese Central Tianshan Block: Constraints on its tectonic affinity to the Tarim Craton and responses to supercontinental cycles[J]. PRECAMBRIAN RESEARCH,2017,295:24-37.
APA	Huang, Zongying.,Long, Xiaoping.,Wang, Xuan-Ce.,Zhang, Yunying.,Du, Long.,...&Xiao, Wenjiao.(2017).Precambrian evolution of the Chinese Central Tianshan Block: Constraints on its tectonic affinity to the Tarim Craton and responses to supercontinental cycles.PRECAMBRIAN RESEARCH,295,24-37.
MLA	Huang, Zongying,et al."Precambrian evolution of the Chinese Central Tianshan Block: Constraints on its tectonic affinity to the Tarim Craton and responses to supercontinental cycles".PRECAMBRIAN RESEARCH 295(2017):24-37.