Petrogenesis of Early Carboniferous adakitic dikes, Sawur region, northern West Junggar, NW China: Implications for geodynamic evolution

doi:10.1016/j.gr.2014.01.016

	Petrogenesis of Early Carboniferous adakitic dikes, Sawur region, northern West Junggar, NW China: Implications for geodynamic evolution
	Yin, Jiyuan 1,2; Chen, Wen 1; Yuan, Chao 3; Yu, Shun 1; Xiao, Wenjiao 2,4; Long, Xiaoping 3; Li, Jie 1; Sun, Jingbo 1
	2015-06-01
发表期刊	GONDWANA RESEARCH
卷号	27 期号:4 页码:1630-1645
文章类型	Article
摘要	Adakitic dikes are widespread in the Sawur region, northern West Junggar, northwestern China. Zircon U-Pb analyses of the dikes have yielded consistent ages of ca. 334 Ma. The dikes are characterized by relatively high SiO2 (55.5-61.8 wt.%), Al2O3 (14.5-16.3 wt.%), and Sr (468-1005 ppm), and low Y (10.1-14.1 ppm) and Yb (0.93-1.39 ppm) contents, with high Sr/Y (34-74) ratios and slight Eu anomalies, which are analogous to those of slab-derived adakites. In addition, the dikes are relatively MgO-rich (1.75-3.57 wt.%; Mg-# = 44-56), with high Th/Yb ratios and positive epsilon Nd ((334 ma)) (+6.2 to +6.5) and epsilon Hf ((334 ma)) (+11.3 to +15.8) values. The data suggest that the dikes were generated by partial melting of subducted oceanic crust and overlying sediments. However, these Early Carboniferous adakitic rocks and associated I-type granites in the northern part of West Junggar are petrochemically distinct from the Late Carboniferous adakitic plutons from the southern part of West Junggar. The latter are associated with charnockites, A-type granites, tholeiites, and Nb-enriched, alkaline basalts, as well as magnesian dikes, which were generated by ridge subduction during the Late Carboniferous. The distinct lithological association of the Early Carboniferous adakites is consistent with flat slab subduction, which was characterized by anomalous heating of the slab and consequential partial melting to generate adakitic magma. After generation of the Early Carboniferous adakites, the subducting slab cooled, reverted to a more normal subduction angle in the late Early Carboniferous, and was associated with more typical I-type granite arc magmatism. (C) 2014 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
关键词	Adakite Sawur Subduction West Junggar China
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1016/j.gr.2014.01.016
资助者	National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; 41273012 ; 41273012 ; 41273012 ; 41273012 ; 41230207 ; 41230207 ; 41230207 ; 41230207 ; 41390441 ; 41390441 ; 41390441 ; 41390441 ; 41190075) ; 41190075) ; 41190075) ; 41190075) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; 41273012 ; 41273012 ; 41273012 ; 41273012 ; 41230207 ; 41230207 ; 41230207 ; 41230207 ; 41390441 ; 41390441 ; 41390441 ; 41390441 ; 41190075) ; 41190075) ; 41190075) ; 41190075)
关键词[WOS]	ASIAN OROGENIC BELT ; TRONDHJEMITE-GRANODIORITE TTG ; TRACE-ELEMENT EVIDENCE ; THICKENED LOWER CRUST ; U-PB GEOCHRONOLOGY ; CONTINENTAL-CRUST ; ISOTOPE EVIDENCE ; ICP-MS ; SR-ND ; ACCRETIONARY OROGENESIS
收录类别	SCI
语种	英语
资助者	National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; 41273012 ; 41273012 ; 41273012 ; 41273012 ; 41230207 ; 41230207 ; 41230207 ; 41230207 ; 41390441 ; 41390441 ; 41390441 ; 41390441 ; 41190075) ; 41190075) ; 41190075) ; 41190075) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Basic Research Program of China (973 Program)(2014CB440801) ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; National Science Foundation of China(41203026 ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; China Geological Survey(12120113015600) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Chinese Ministry of Land and Resources(201211074-05) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1209) ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Continental Tectonics and Dynamics ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLIG-KF-13-05) ; 41273012 ; 41273012 ; 41273012 ; 41273012 ; 41230207 ; 41230207 ; 41230207 ; 41230207 ; 41390441 ; 41390441 ; 41390441 ; 41390441 ; 41190075) ; 41190075) ; 41190075) ; 41190075)
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000355024800021
引用统计
文献类型	期刊论文
条目标识符	http://ir.iggcas.ac.cn/handle/132A11/62496
专题	岩石圈演化国家重点实验室
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Lab Isotope Thermochronol, State Key Lab Continental Tecton & Dynam, Beijing 100037, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China
第一作者单位	岩石圈演化国家重点实验室
推荐引用方式 GB/T 7714	Yin, Jiyuan,Chen, Wen,Yuan, Chao,et al. Petrogenesis of Early Carboniferous adakitic dikes, Sawur region, northern West Junggar, NW China: Implications for geodynamic evolution[J]. GONDWANA RESEARCH,2015,27(4):1630-1645.
APA	Yin, Jiyuan.,Chen, Wen.,Yuan, Chao.,Yu, Shun.,Xiao, Wenjiao.,...&Sun, Jingbo.(2015).Petrogenesis of Early Carboniferous adakitic dikes, Sawur region, northern West Junggar, NW China: Implications for geodynamic evolution.GONDWANA RESEARCH,27(4),1630-1645.
MLA	Yin, Jiyuan,et al."Petrogenesis of Early Carboniferous adakitic dikes, Sawur region, northern West Junggar, NW China: Implications for geodynamic evolution".GONDWANA RESEARCH 27.4(2015):1630-1645.