Retrospects and Prospects on Li Isotope Geochemistry during Petrogenesis and Mineralization of Mafic-Ultramafic Rocks

被引：4
作者：
Xiao Y. [1 ,2 ]
Pan Q. [1 ,2 ,3 ]
Tang D. [2 ,4 ]
Mao Y. [2 ,4 ]
Tian S. [5 ]
Chen C. [6 ]
Su B. [2 ,3 ,4 ]
Liu X. [2 ,3 ,4 ]
机构：
[1] State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing
[2] Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing
[3] University of Chinese Academy of Sciences, Beijing
[4] Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing
[5] State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang
[6] Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou
来源：
Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences | 2021年 / 46卷 / 12期
关键词：
Fractional crystallization; Geochemistry; Li isotope; Mafic-ultramafic intrusion; Melt/fluid-mineral reaction; Mineralization;
D O I：
10.3799/dqkx.2021.111
中图分类号：
学科分类号：
摘要：
In-situ Li isotope geochemistry has been better utilized to trace many complex processes including fractional crystallization, crust contamination and melt/fluid-mineral reaction during the petrogenesis and mineralization of mafic-ultramafic rocks. This study summarizes the major progresses in Li isotope geochemistry during petrogenesis and mineralization of mafic-ultramafic intrusions based on case studies. Firstly, the Li isotope study of Yellow Hill Alaskan-type intrusion reveal Li isotope fractionation during magma differentiation. Secondly, the studies on ophiolites from Turkey and Tibet indicate that Li isotope systematics have potential to constrain genesis of ophiolitic mantle section and evolution of chromitites. Thirdly, the Li isotope study of the ultramafic zone of the Stillwater complex demonstrates that hydrous fluids constrained mineral composition and acted as a critical medium of chemical exchange between minerals in the chromitites. Finally, Li isotope fractionation behavior in the formation of magmatic Ni-Cu sulfide deposits has been investigated. © 2021, Editorial Department of Earth Science. All right reserved.
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页码：4334 / 4345
页数：11
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