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  4. 中国科学院地球与行星物理重点实验室
The transformation of the lithospheric mantle beneath South China Block (SCB): constraints from petrological and geochemical studies of Daoxian and Ningyuan basalts and their melt inclusions

文献类型：期刊论文

作者Duan, Xianzhe1,2; Zhang, Hongfu3; Santosh, M.4,5; Tian, Hengci6; Sun, He7; Tan, Kaixuan2; Han, Shili2; Xiao, Yilin8; Hou, Zhenhui8; Zhang, Yanqun1
刊名INTERNATIONAL GEOLOGY REVIEW
出版日期2019-05-30
页码24
关键词South China Block Southern Hunan Mesozoic basalts melt inclusions enriched mantle Palaeo-Pacific oceanic crust ore deposits
ISSN号0020-6814
DOI10.1080/00206814.2019.1621778
英文摘要The lithospheric mantle beneath the South China Block (SCB) underwent a dramatic transformation from depleted to enriched during late Mesozoic. With a view to deeply understand this process, here we investigate the Mesozoic basalts and their melt inclusions from the Daoxian and Ningyuan regions within the central SCB. The geochemical features of the melt inclusions in these basalts suggest that these rocks originated from the lithospheric mantle enriched through interaction with K-rich aqueous fluids released from subducted Palaeo-Pacific oceanic sediments, whereas the Ningyuan basalts were mainly derived from the asthenospheric mantle source. Geochemical modelling indicates that the Daoxian basalts were generated from 15%-25% of partial melting of garnet lherzolite, whereas the Ningyuan basalts originated from 10%-20% of partial melting of garnet pyroxenites. Our data, combined with those from other Jurassic basalts suggest a temporal evolution of the SCB mantle sources during the Late Mesozoic. Diverse crust-mantle interactions through mixing of the asthenospheric melts with variable proportions of subducted Palaeo-Pacific oceanic sediments might account for the spatial heterogeneity of mantle sources observed beneath the SCB. The transition from Tethyan tectonic realm to the Palaeo-Pacific tectonic regime might have played a significant role in the transformation of the lithospheric mantle beneath the SCB.
WOS关键词CENOZOIC VOLCANIC-ROCKS ; MESOZOIC IGNEOUS ROCKS ; TRACE-ELEMENT EVIDENCE ; EASTERN NORTH CHINA ; PB ZIRCON AGES ; SE CHINA ; SILICATE MELTS ; 3 GPA ; ISOTOPIC CHARACTERISTICS ; PERIDOTITE INTERACTIONS
资助项目National Natural Science Foundation of China[41503016] ; Natural Science Foundation of Hunan Province, China[2017JJ3261] ; China Postdoctoral Science Foundation[2015M582334] ; Outstanding Youth Project of Education Department of Hunan Province[15B201] ; University of South China[2014XQD08] ; University of South China[2018XQD22]
WOS研究方向Geology
语种英语
WOS记录号WOS:000471561800001
出版者TAYLOR & FRANCIS INC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Hunan Province, China ; Natural Science Foundation of Hunan Province, China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Outstanding Youth Project of Education Department of Hunan Province ; Outstanding Youth Project of Education Department of Hunan Province ; University of South China ; University of South China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Hunan Province, China ; Natural Science Foundation of Hunan Province, China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Outstanding Youth Project of Education Department of Hunan Province ; Outstanding Youth Project of Education Department of Hunan Province ; University of South China ; University of South China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Hunan Province, China ; Natural Science Foundation of Hunan Province, China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Outstanding Youth Project of Education Department of Hunan Province ; Outstanding Youth Project of Education Department of Hunan Province ; University of South China ; University of South China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Hunan Province, China ; Natural Science Foundation of Hunan Province, China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Outstanding Youth Project of Education Department of Hunan Province ; Outstanding Youth Project of Education Department of Hunan Province ; University of South China ; University of South China
源URL[http://ir.iggcas.ac.cn/handle/132A11/92543]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Duan, Xianzhe
作者单位1.Univ South China, Sch Resource & Environm & Safety Engn, Hengyang 421001, Peoples R China
2.Hengyang Key Lab Geol Theory & Technol Nucl Fuel, Hengyang, Peoples R China
3.Northwest Univ, State Key Lab Continental Dynam, Dept Geol, Xian, Shaanxi, Peoples R China
4.China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing, Peoples R China
5.Univ Adelaide, Dept Earth Sci, Adelaide, SA, Australia
6.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Inst Geol & Geophys, Beijing, Peoples R China
7.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei, Anhui, Peoples R China
8.Univ Sci & Technol China, Key Lab Crust Mantle Mat & Environm, Sch Earth & Space Sci, Hefei, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Duan, Xianzhe,Zhang, Hongfu,Santosh, M.,et al. The transformation of the lithospheric mantle beneath South China Block (SCB): constraints from petrological and geochemical studies of Daoxian and Ningyuan basalts and their melt inclusions[J]. INTERNATIONAL GEOLOGY REVIEW,2019:24.
APA Duan, Xianzhe.,Zhang, Hongfu.,Santosh, M..,Tian, Hengci.,Sun, He.,...&Jiang, Le.(2019).The transformation of the lithospheric mantle beneath South China Block (SCB): constraints from petrological and geochemical studies of Daoxian and Ningyuan basalts and their melt inclusions.INTERNATIONAL GEOLOGY REVIEW,24.
MLA Duan, Xianzhe,et al."The transformation of the lithospheric mantle beneath South China Block (SCB): constraints from petrological and geochemical studies of Daoxian and Ningyuan basalts and their melt inclusions".INTERNATIONAL GEOLOGY REVIEW (2019):24.

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来源：地质与地球物理研究所

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