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石英和锆石Ti温度计在地学中的应用及其Ti含量的微区分析技术进展

Application of Ti-in-quartz and Ti-in-zircon thermometers in geoscience and progress of microbeam analysis technology of Ti content

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【作者】 牛俊龙吴石头杨岳衡张超王浩龚庆杰

【Author】 NIU JunLong;WU ShiTou;YANG YueHeng;ZHANG Chao;WANG Hao;GONG QingJie;State Key Laboratory of Lithospheric Evolution,Institute of Geology and Geophysics,Chinese Academy of Sciences;Innovation Academy for Earth Science,Chinese Academy of Sciences;College of Earth and Planetary Science,University of Chinese Academy of Sciences;School of Earth Sciences and Resources,China University of Geosciences(Beijing);State Key Laboratory of Continental Dynamics,Department of Geology,Northwest University;

【通讯作者】 吴石头;

【机构】 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中国科学院地球科学创新研究院中国科学院大学地球与行星科学学院中国地质大学(北京)地球科学与资源学院西北大学地质学系大陆动力学国家重点实验室

【摘要】 石英和锆石Ti温度计在地球科学研究领域具有广泛的应用,本文系统回顾了石英和锆石Ti温度(压力)计发展史,并综述了其在地学中的典型应用实例。当前主要有3个石英Ti温度计和2个锆石Ti温度计计算公式,这些公式的使用范围和适用的地质情况已有统一的认识。石英和锆石Ti温度计应用的前提是Ti含量的准确测定。本文综述了现有Ti元素含量微区分析技术(电子探针、离子探针和激光剥蚀电感耦合等离子体质谱),重点讨论了激光剥蚀电感耦合等离子质谱在石英和锆石Ti分析的技术难点,包括不可控的剥蚀行为、多原子离子团干扰、缺乏基体匹配的标准物质等。最后展望了该技术未来发展趋势,特别是采用飞秒激光、高灵敏度/高分辨SF-ICP-MS、三重四级杆ICP-MS等仪器,有望实现低含量(<5.0×10-6) Ti的准确测定,这为石英和锆石Ti温度计的广泛应用提供有力保障。

【Abstract】 Ti-in-quartz and Ti-in-zircon thermometers have a wide range of applications in the field of earth science research. This paper systematically reviews the development history of Ti-in-quartz and Ti-in-zircon thermometers and the typical examples of their applications in geoscience. At present, there are mainly 3 calculation formulas for the Ti-in-quartz thermometers and 2 calculation formulas for the Ti-in-zircon thermometers, respecitively, and the scope of their uses and applicable geological conditions have been uniformly recognized. The premise of the application of Ti-in-quartz and Ti-in-zircon thermometers is the accurate determination of Ti content. This paper reviews the existing in situ microanalysis techniques for Ti content(electron probe, ion probe and laser ablation inductively coupled plasma mass spectrometry), focusing on the technical difficulties of ablation inductively coupled plasma mass spectrometry in the analysis of quartz and zircon Ti, including uncontrollable ablation behavior, polyatomic ion interference, lack of matrix-matched reference materials, etc. The second laser, the high sensitivity/high resolution SF-ICP-MS, the triple quadrupole ICP-MS and other instruments are expected to achieve accurate determination of low content(<5.0×10-6) Ti, which is widely used in Ti-in-quartz and Ti-in-zircon thermometers. The application of these techiniques will provide a strong guarantee for the wide use of the Ti-thermometers.

【基金】 国家自然科学基金项目(41903024);中国科学院青年创新促进会项目(2022066)联合资助
  • 【文献出处】 岩石学报 ,Acta Petrologica Sinica , 编辑部邮箱 ,2024年01期
  • 【分类号】P575
  • 【下载频次】21
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