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Element Partitioning and Li-O Isotope Fractionation Between Silicate Minerals and Crustal-Derived Carbonatites and Their Implications

文献类型：期刊论文

作者Su, Ben-Xun1,5; Wang, Jing1; Cui, Meng-Meng1,5; Wu, Yong4; Pang, Kwan-Nang3; Malaviarachchi, Sanjeewa P. K.2; Dharmapriya, P. L.2
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
出版日期2022-06-01
卷号127期号:6页码:21
关键词carbonatite olivine Li isotopes oxygen isotopes element diffusion clinopyroxene
ISSN号2169-9313
DOI10.1029/2022JB024563
英文摘要In order to investigate element partitioning and Li-O isotope fractionation between silicate minerals and carbonatite melts at variable levels from mantle to crust, we document elemental and Li-O isotopic data for major minerals from crust-derived carbonatites at Eppawala, Sri Lanka. Partition coefficients (D) of elements between olivine or clinopyroxene and carbonatite melts are consequently estimated. The estimated D values indicate that Li, Zn, Co, Cr, Mn, and Ni behave compatibly in olivine, while P and Sc are slightly compatible, and V and Al are mildly incompatible. Partition coefficients of elements between clinopyroxene and carbonatite melts are defined here, including highly compatible Li, Sc, Ti, V, Al, and Na, moderately compatible Zn, Co, Cr, and Ga, and incompatible Mn, Ni, P, and Cu. They are systematically higher than literature values obtained from mantle conditions, but their relative compatibilities at different systems are consistent. This indicates that element partitioning between silicates and carbonatite melts is highly temperature- and pressure-dependent and can be used to evaluate geochemical proxies of carbonatite metasomatism, and evolution and mineralization of carbonatite melts. Profile analyses on olivine grains reveal that Fe-loving elements in olivine could well preserve features of crystal growth and modal metasomatic interaction, while Li and O isotope fractionations are strongly controlled by element diffusion and Li isotopes are robust indicators of cryptic metasomatic interaction.
WOS关键词PERIDOTITE XENOLITHS ; HIGH-TEMPERATURE ; UPPER-MANTLE ; RB-SR ; LITHIUM ; METASOMATISM ; MELTS ; TRACE ; SIGNATURES ; INTRUSION
资助项目Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Research Council of Sri Lanka[NRC 15-089]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000805249600001
出版者AMER GEOPHYSICAL UNION
资助机构Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Research Council of Sri Lanka ; National Research Council of Sri Lanka ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Research Council of Sri Lanka ; National Research Council of Sri Lanka ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Research Council of Sri Lanka ; National Research Council of Sri Lanka ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Research Council of Sri Lanka ; National Research Council of Sri Lanka
源URL[http://ir.iggcas.ac.cn/handle/132A11/106035]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Su, Ben-Xun
作者单位1.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing, Peoples R China
2.Univ Peradeniya, Dept Geol, Fac Sci, Peradeniya, Sri Lanka
3.Inst Earth Sci Acad Sinica, Taipei, Taiwan
4.Beijing Res Inst Uranium Geol, Beijing, Peoples R China
5.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Su, Ben-Xun,Wang, Jing,Cui, Meng-Meng,et al. Element Partitioning and Li-O Isotope Fractionation Between Silicate Minerals and Crustal-Derived Carbonatites and Their Implications[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2022,127(6):21.
APA Su, Ben-Xun.,Wang, Jing.,Cui, Meng-Meng.,Wu, Yong.,Pang, Kwan-Nang.,...&Dharmapriya, P. L..(2022).Element Partitioning and Li-O Isotope Fractionation Between Silicate Minerals and Crustal-Derived Carbonatites and Their Implications.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,127(6),21.
MLA Su, Ben-Xun,et al."Element Partitioning and Li-O Isotope Fractionation Between Silicate Minerals and Crustal-Derived Carbonatites and Their Implications".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 127.6(2022):21.

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来源：地质与地球物理研究所

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