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MC-ICP-MS锂同位素溶液分析技术与应用
投稿时间:2021-04-03  修订日期:2021-06-04  点此下载全文
引用本文:田世洪,路娜,侯增谦,苏本勋,肖燕,杨丹.2021.MC-ICP-MS锂同位素溶液分析技术与应用[J].地质论评,67(5):1441-1464,[DOI]:.
TIAN Shihong,LU Na,HOU Zengqian,SU Benxun,XIAO Yan,YANG Dan.2021.Lithium isotopic solution analysis using MC-ICP-MS and its applications[J].Geological Review,67(5):1441-1464.
DOI:10.16509/j.georeview.2021.06.081
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作者单位E-mail
田世洪 1)东华理工大学核资源与环境国家重点实验室南昌3300132)中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037 s.h.tian@163.com 
路娜 1)东华理工大学核资源与环境国家重点实验室南昌330013  
侯增谦 3)中国地质科学院地质研究所北京100037  
苏本勋 4)中国科学院地质与地球物理研究所矿产资源研究院重点实验室北京1000295)中国科学院大学北京100049  
肖燕 6)中国科学院地质与地球物理研究所岩石圈演化国家重点实验室北京100029  
杨丹 2)中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037  
基金项目:本文为国家自然科学基金资助项目(编号:41773014)、江西省“双千计划”创新领军人才长期项目和东华理工大学高层次人才引进配套经费资助项目(编号:1410000874)的成果
中文摘要:Li同位素是一种新兴的非传统稳定同位素示踪工具,在地质学、地球化学研究中具有广阔的应用前景。目前,Li同位素溶液分析技术主要采用热电离质谱仪(TIMS)和多接收电感耦合等离子质谱仪(MC-ICP-MS),与TIMS相比,MC-ICP-MS具有分析精度高、样品量少、测试速度快等诸多优点。本研究团队近年来建立了MC-ICP-MS高精度Li同位素分析方法,在天然样品、标准物质以及石英包裹体的Li同位素测定中都取得了良好结果。以此为依托,研究团队建立了适用于西藏本地岩石成因研究的Li同位素地质端元,并将Li同位素应用于青藏高原岩石圈结构及其隆升历史、川西碳酸岩型稀土矿床富集机制、四川呷村VMS型矿床成矿流体来源和四川甲基卡硬岩型Li矿床富集机理等方面。本文比较详细地综述了这些研究进展,旨在加深对Li同位素溶液分析技术的理解,展示其在地球化学研究中的良好应用前景。
中文关键词:Li同位素  MC-ICP-MS  地质端元  地质应用
 
Lithium isotopic solution analysis using MC-ICP-MS and its applications
NameInstitution
TIAN Shihong1)State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang,330013;2)MNR Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing,100037
LU Na1)State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang,330013
HOU Zengqian3)Institute of Geology,Chinese Academy of Geological Sciences,Beijing,100037
SU Benxun4)Key Laboratory of Mineral Resources,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,100029;5)University of Chinese Academy of Sciences,Beijing,100049
XIAO Yan6)State Key Laboratory of Lithospheric Evolution,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,100029
YANG Dan2)MNR Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing,100037
Abstract:Lithium isotopes are one of the newly developed non-traditional stable isotope tracers.This isotopic system has been gaining increasing interest in fingerprinting geologic and geochemical processes.At present,lithium isotopic solution analyses mainly include thermal ionization mass spectrometry (TIMS) and multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS).Compared with TIMS,MC-ICP-MS has many advantages,such as higher analysis accuracy and precision,less sample consumption,faster analysis speed and so on.Methods: In recent years,the research team have established high-precision measurement of lithium isotopes by MC-ICP-MS, which has achieved good results in the determination of lithium isotopes in natural samples,reference materials and quartz inclusions. Results: Based on these analytical methods,we have established the Li isotopic geological endmembers,which are applicable to the study of the origin of local rocks in Tibet.In addition,we have applied Li isotopes to the lithospheric structure and uplift history of the Qinghai—Tibet Plateau,the enrichment mechanism of carbonatite-type rare earth deposits in western Sichuan,the source of ore-forming fluids of Gacun volcanogenic massive sulfide (VMS) deposits in Sichuan and the enrichment mechanism of Jiajika hard-rock lithium deposits in Sichuan.Conclusions: In this paper,we present these representative applications in detail in order to deepen the understanding of lithium isotopic solution analysis and show its good application prospects in geochemical research.
keywords:Li isotopes  MC-ICP-MS  geological endmembers  geological applications
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