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Geochronology, geochemistry and petrogenesis of Early Permian alkaline magmatism in the Eastern Tianshan: Implications for tectonics of the Southern Altaids

文献类型：期刊论文

作者Mao, Qigui1; Xiao, Wenjiao2,3; Fang, Tonghui1; Windley, Brian F.4; Sun, Min5; Ao, Songjian3; Zhang, Ji'en3; Huang, Xingkai1
刊名LITHOS
出版日期2014-03-01
卷号190页码:37-51
关键词Magmatic alkaline complex A-type granite Permian Eastern Tianshan
ISSN号0024-4937
DOI10.1016/j.lithos.2013.11.011
文献子类Article
英文摘要In the early Permian large volumes of volcanic rocks developed in the Eastern Tianshan of the southern Altaids. The Shaerhu alkaline complex, which occurs along a NW-trending transcurrent fault in the Dananhu arc, is composed of alkaline gabbro intrusions, granites and rhyolites; the gabbros and rhyolites have similar zircon crystallization ages of 286.5 +/- 2.1 Ma and 286.7 +/- 2.1 Ma, respectively. The granitic and rhyolitic rocks have typical A-type granite geochemical signatures, i.e. high oxide ratios (in wt.%): K2O + Na2O, (K2O + Na2O)/CaO, K2O/MgO, and SiO2, high trace element values: Zr, Nb, Ga, Ce, Y, and REE, and high Zr + Ce + Y, and 10,000 * Ga/Al ratios. However, spidergrams and REE patterns indicate major depletions in Ba, Sr, P. Ti and Eu. The presence of positive epsilon(Nd)(t) values of + 7.0 to +11.2 and low (Sr-87/Sr-86)(i) (0.70148-0.70416) indicates that these alkaline rocks were derived from a depleted mantle, and not from old continental crust. The geochemical characters indicate that the rocks of the complex have the same source and that fractionation was important in their generation. A-type granitic rocks are the most highly fractionated of alkaline basic rocks. In summary, the Shaerhu complex is a product of mantle-derived alkaline magma fractionation, which is one of the main mechanisms of A-type granite genesis. The felsic rocks of the Shaerhu complex have the geochemical signature of an A(2)-type granite, and thus were not derived from a rift or mantle plume. In the early Permian, oblique subduction in the southern Altaids gave rise to strike-slip extensional faults, which controlled the emplacement of large volumes of mantle-derived melts. (C) 2013 Elsevier B.V. All rights reserved.
WOS关键词A-TYPE GRANITES ; PHANEROZOIC CRUSTAL GROWTH ; ASIAN OROGENIC BELT ; ND ISOTOPIC EVIDENCE ; U-PB AGE ; NW CHINA ; CONTINENTAL GROWTH ; VOLCANIC-ROCKS ; SOUTHEASTERN AUSTRALIA ; NORTHEASTERN CHINA
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000333782300004
出版者ELSEVIER SCIENCE BV
资助机构Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Chinese State 305 Project(2011BAB06B04-03) ; Chinese State 305 Project(2011BAB06B04-03) ; Chinese State 305 Project(2011BAB06B04-03) ; Chinese State 305 Project(2011BAB06B04-03) ; National Natural Science Foundation of China(41230207 ; National Natural Science Foundation of China(41230207 ; National Natural Science Foundation of China(41230207 ; National Natural Science Foundation of China(41230207 ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; 2014CB44801 ; 2014CB44801 ; 2014CB44801 ; 2014CB44801 ; 41390441 ; 41390441 ; 41390441 ; 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National Natural Science Foundation of China(41230207 ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; 2014CB44801 ; 2014CB44801 ; 2014CB44801 ; 2014CB44801 ; 41390441 ; 41390441 ; 41390441 ; 41390441 ; HKU704712P) ; HKU704712P) ; HKU704712P) ; HKU704712P) ; 2007CB411307) ; 2007CB411307) ; 2007CB411307) ; 2007CB411307) ; 41190072 ; 41190072 ; 41190072 ; 41190072 ; 41190070 ; 41190070 ; 41190070 ; 41190070 ; 41190071 ; 41190071 ; 41190071 ; 41190071 ; 41273048 ; 41273048 ; 41273048 ; 41273048 ; 41202150) ; 41202150) ; 41202150) ; 41202150) ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Chinese State 305 Project(2011BAB06B04-03) ; Chinese State 305 Project(2011BAB06B04-03) ; Chinese State 305 Project(2011BAB06B04-03) ; Chinese State 305 Project(2011BAB06B04-03) ; National Natural Science Foundation of China(41230207 ; National Natural Science Foundation of China(41230207 ; National Natural Science Foundation of China(41230207 ; National Natural Science Foundation of China(41230207 ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; 2014CB44801 ; 2014CB44801 ; 2014CB44801 ; 2014CB44801 ; 41390441 ; 41390441 ; 41390441 ; 41390441 ; HKU704712P) ; HKU704712P) ; HKU704712P) ; HKU704712P) ; 2007CB411307) ; 2007CB411307) ; 2007CB411307) ; 2007CB411307) ; 41190072 ; 41190072 ; 41190072 ; 41190072 ; 41190070 ; 41190070 ; 41190070 ; 41190070 ; 41190071 ; 41190071 ; 41190071 ; 41190071 ; 41273048 ; 41273048 ; 41273048 ; 41273048 ; 41202150) ; 41202150) ; 41202150) ; 41202150) ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Sino-British ScholarshipChinese National Basic Research 973 Program(2014CB44803 ; Chinese State 305 Project(2011BAB06B04-03) ; Chinese State 305 Project(2011BAB06B04-03) ; Chinese State 305 Project(2011BAB06B04-03) ; Chinese State 305 Project(2011BAB06B04-03) ; National Natural Science Foundation of China(41230207 ; National Natural Science Foundation of China(41230207 ; National Natural Science Foundation of China(41230207 ; National Natural Science Foundation of China(41230207 ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; Hong Kong Research Grant Council(HKU705311P ; 2014CB44801 ; 2014CB44801 ; 2014CB44801 ; 2014CB44801 ; 41390441 ; 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源URL[http://ir.iggcas.ac.cn/handle/132A11/86270]  
专题中国科学院地质与地球物理研究所
通讯作者Xiao, Wenjiao
作者单位1.Beijing Inst Geol Mineral Resources, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England
5.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714		 Mao, Qigui,Xiao, Wenjiao,Fang, Tonghui,et al. Geochronology, geochemistry and petrogenesis of Early Permian alkaline magmatism in the Eastern Tianshan: Implications for tectonics of the Southern Altaids[J]. LITHOS,2014,190:37-51.
APA Mao, Qigui.,Xiao, Wenjiao.,Fang, Tonghui.,Windley, Brian F..,Sun, Min.,...&Huang, Xingkai.(2014).Geochronology, geochemistry and petrogenesis of Early Permian alkaline magmatism in the Eastern Tianshan: Implications for tectonics of the Southern Altaids.LITHOS,190,37-51.
MLA Mao, Qigui,et al."Geochronology, geochemistry and petrogenesis of Early Permian alkaline magmatism in the Eastern Tianshan: Implications for tectonics of the Southern Altaids".LITHOS 190(2014):37-51.

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