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The youngest Permian Ocean in Central Asian Orogenic Belt: Evidence from Geochronology and Geochemistry of Bingdaban Ophiolitic Melange in Central Tianshan, northwestern China
Liu, Xi-Jun1,2,3,4,5; Zhang, Zhi-Guo2; Xu, Ji-Feng2,5; Xiao, Wen-Jiao1,3,4,5; Shi, Yu2; Gong, Xiao-Han5; Tan, Zhen-Jiang2; Li, Rui2
2020-03-01
Source PublicationGEOLOGICAL JOURNAL
ISSN0072-1050
Volume55Issue:3Pages:2062-2079
AbstractThe Tianshan Belt, which lies in the southwest part of Central Asian Orogenic Belt (CAOB), is characterized by abundant ophiolites or ophiolitic melanges, which are indicators of the existence of oceanic basin can be used for tracking the tectonic evolutionary history of the orogen. The Bindaban (BD) ophiolitic melange is located in the Central Tianshan Belt, northwest China, which comprises mainly gabbros, diabases, basalts, basaltic lavas (greenschist), and cherts. This paper presents new zircon geochronology, whole-rock major and trace elements, and Sr, Nd isotope data for mafic rocks in the BD ophiolitic melanges. In the eastern part of BD ophiolitic melanges, one normal (N)-MORB-type basalt has a U-Pb zircon age of 265.2 +/- 1.8 Ma, and one enriched-MORB-type dolorite in the western part of BD ophiolitic melanges has an age of 425.4 +/- 3.9 Ma, respectively, indicating either an existing ocean basin from continental rifting to normal oceanic spreading with a long time span from late Silurian to Permain, or two separate ocean basins that formed in late Permian and late Silurian during the Paleo-Tianshan Ocean evolution. In particular, the 265.2 +/- 1.8 Ma age of N-MORB-type basalt from BD ophiolitic melange suggests the youngest oceanic basin (late Permian) existed in southwest CAOB, which reveals that Paleo-Asian Ocean might last to late Permian, therefore finally closed in or after the late Permian in the North Tianshan area.
KeywordCentral Asian Orogenic Belt Paleo-Tianshan Ocean ophiolite MORB late Permian Central Tianshan
DOI10.1002/gj.3698
WOS KeywordPALEOZOIC TECTONIC EVOLUTION ; BLOCK NW CHINA ; U-PB AGES ; YILI BLOCK ; SOUTH TIANSHAN ; ACCRETIONARY TECTONICS ; GEODYNAMIC EVOLUTION ; EASTERN TIANSHAN ; MIDDLE TIANSHAN ; TIEN-SHAN
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000520616500026
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95481
Collection矿产资源研究院重点实验室
Corresponding AuthorLiu, Xi-Jun; Xu, Ji-Feng
Affiliation1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China
2.Guilin Univ Technol, Guangxi Key Lab Hidden Metall Ore Deposits Explor, Guilin, Peoples R China
3.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Urumqi, Peoples R China
4.Univ Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
5.China Univ Geosci, Sch Earth Sci & Resources, Beijing, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liu, Xi-Jun,Zhang, Zhi-Guo,Xu, Ji-Feng,et al. The youngest Permian Ocean in Central Asian Orogenic Belt: Evidence from Geochronology and Geochemistry of Bingdaban Ophiolitic Melange in Central Tianshan, northwestern China[J]. GEOLOGICAL JOURNAL,2020,55(3):2062-2079.
APA Liu, Xi-Jun.,Zhang, Zhi-Guo.,Xu, Ji-Feng.,Xiao, Wen-Jiao.,Shi, Yu.,...&Li, Rui.(2020).The youngest Permian Ocean in Central Asian Orogenic Belt: Evidence from Geochronology and Geochemistry of Bingdaban Ophiolitic Melange in Central Tianshan, northwestern China.GEOLOGICAL JOURNAL,55(3),2062-2079.
MLA Liu, Xi-Jun,et al."The youngest Permian Ocean in Central Asian Orogenic Belt: Evidence from Geochronology and Geochemistry of Bingdaban Ophiolitic Melange in Central Tianshan, northwestern China".GEOLOGICAL JOURNAL 55.3(2020):2062-2079.
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