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Newly discovered Late Triassic Baqing eclogite in central Tibet indicates an anticlockwise West-East Qiangtang collision
Zhang, Yu-Xiu1,2; Jin, Xin1; Zhang, Kai-Jun1,2; Sun, Wei-Dong3,4; Liu, Jian-Ming1; Zhou, Xiao-Yao1; Yan, Li-Long1
2018-01-17
发表期刊SCIENTIFIC REPORTS
ISSN2045-2322
卷号8页码:12
通讯作者Zhang, Kai-Jun(kaijun@ucas.ac.cn)
摘要The Triassic eclogite-bearing central Qiangtang metamorphic belt (CQMB) in the northern Tibetan Plateau has been debated whether it is a metamorphic core complex underthrust from the Jinsha Paleo-Tethys or an in-situ Shuanghu suture. The CQMB is thus a key issue to elucidate the crustal architecture of the northern Tibetan Plateau, the tectonics of the eastern Tethys, and the petrogenesis of Cenozoic high-K magmatism. We here report the newly discovered Baqing eclogite along the eastern extension of the CQMB near the Baqing town, central Tibet. These eclogites are characterized by the garnet + omphacite + rutile + phengite + quartz assemblages. Primary eclogite-facies metamorphic pressure-temperature estimates yield consistent minimum pressure of 25 +/- 1 kbar at 730 +/- 60 degrees C. U-Pb dating on zircons that contain inclusions (garnet + omphacite + rutile + phengite) gave eclogite-facies metamorphic ages of 223 Ma. The geochemical continental crustal signature and the presence of Paleozoic cores in the zircons indicate that the Baqing eclogite formed by continental subduction and marks an eastward-younging anticlockwise West-East Qiangtang collision along the Shuanghu suture from the Middle to Late Triassic.
DOI10.1038/s41598-018-19342-w
收录类别SCI
语种英语
资助项目Natural Science Foundation of China[41472209] ; Natural Science Foundation of China[40802048] ; President Fund for Science and Education Fusion of University of Chinese Academy of Sciences[Y552011Y00] ; China Geological Survey[I45E021002] ; China Geological Survey[I45E021003] ; China Geological Survey[I48E012004] ; China Geological Survey[I45E022002] ; China Geological Survey[H46E013006] ; China Geological Survey[H46E013007] ; China Geological Survey[H46E013008] ; China Geological Survey[H46E013009] ; Natural Science Foundation of China[41472209] ; Natural Science Foundation of China[40802048] ; President Fund for Science and Education Fusion of University of Chinese Academy of Sciences[Y552011Y00] ; China Geological Survey[I45E021002] ; China Geological Survey[I45E021003] ; China Geological Survey[I48E012004] ; China Geological Survey[I45E022002] ; China Geological Survey[H46E013006] ; China Geological Survey[H46E013007] ; China Geological Survey[H46E013008] ; China Geological Survey[H46E013009]
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000422716900100
出版者NATURE PUBLISHING GROUP
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被引频次:80[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/157820
专题深海极端环境与生命过程研究中心
通讯作者Zhang, Kai-Jun
作者单位1.Univ Chinese Acad Sci, Coll Earth Sci, Asian Tecton Res Grp, 19 A Yuquan Rd, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Key Lab Computat Geodynam, 19 A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China
4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Guangzhou 510640, Guangdong, Peoples R China
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Zhang, Yu-Xiu,Jin, Xin,Zhang, Kai-Jun,et al. Newly discovered Late Triassic Baqing eclogite in central Tibet indicates an anticlockwise West-East Qiangtang collision[J]. SCIENTIFIC REPORTS,2018,8:12.
APA Zhang, Yu-Xiu.,Jin, Xin.,Zhang, Kai-Jun.,Sun, Wei-Dong.,Liu, Jian-Ming.,...&Yan, Li-Long.(2018).Newly discovered Late Triassic Baqing eclogite in central Tibet indicates an anticlockwise West-East Qiangtang collision.SCIENTIFIC REPORTS,8,12.
MLA Zhang, Yu-Xiu,et al."Newly discovered Late Triassic Baqing eclogite in central Tibet indicates an anticlockwise West-East Qiangtang collision".SCIENTIFIC REPORTS 8(2018):12.
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