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Elemental and Sr-Nd-Pb isotope geochemistry of the Cenozoic basalts in Southeast China: Insights into their mantle sources and melting processes
Sun, Pu1,2,3; Niu, Yaoling1,2,4,5; Guo, Pengyuan1,2; Ye, Lei6; Liu, Jinju6; Feng, Yuexing7
2017-02-01
发表期刊LITHOS
卷号272页码:16-30
文章类型Article
摘要We analyzed whole-rock major and trace elements and Sr-Nd-Pb isotopes of the Cenozoic basalts in Southeast China to investigate their mantle source characteristics and melting process. These basalts are spatially associated with three extensional fault systems parallel to the coast line. After correction for the effect of olivine microlites on bulk-rock compositions and the effect of crystal fractionation, we obtained primitive melt compositions for these samples. These primitive melts show increasing SiO2, Al2O3 but decreasing FeO, MgO, TiO2, P2O5, CaO and CaO/Al2O3 from the interior to the coast. Such spatial variations of major element abundances and ratios are consistent with a combined effect of fertile source compositional variation and increasing extent and decreasing pressure of decompression melting from beneath the thick lithosphere in the interior to beneath the thin lithosphere in the coast.
关键词Se China Cenozoic Basalts Lid Effect Mantle Metasomatism Recycled Upper Continental Crust
DOI10.1016/j.lithos.2016.12.005
收录类别SCI
语种英语
WOS记录号WOS:000393265600002
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136344
专题海洋地质与环境重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Durham, Dept Earth Sci, Durham DH1 3LE, England
5.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
6.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China
7.Univ Queerzsland, Sch Earth Sci, Radiogen Isotope Facil, Brisbane, Qld 4072, Australia
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GB/T 7714
Sun, Pu,Niu, Yaoling,Guo, Pengyuan,et al. Elemental and Sr-Nd-Pb isotope geochemistry of the Cenozoic basalts in Southeast China: Insights into their mantle sources and melting processes[J]. LITHOS,2017,272:16-30.
APA Sun, Pu,Niu, Yaoling,Guo, Pengyuan,Ye, Lei,Liu, Jinju,&Feng, Yuexing.(2017).Elemental and Sr-Nd-Pb isotope geochemistry of the Cenozoic basalts in Southeast China: Insights into their mantle sources and melting processes.LITHOS,272,16-30.
MLA Sun, Pu,et al."Elemental and Sr-Nd-Pb isotope geochemistry of the Cenozoic basalts in Southeast China: Insights into their mantle sources and melting processes".LITHOS 272(2017):16-30.
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