投稿时间：2021-02-11
修订日期：2021-03-08
网络发布日期：2021-05-17
中文摘要:近年来，矿物自动定量分析系统已广泛应用于地质、石油、矿业、冶金、考古和环境等领域，而中国对该系统在岩矿科研领域的应用则刚刚起步。文章以捷克泰思肯电镜公司（TESCAN）的全自动矿物分析系统TIMA（TESCAN Integrated Mineral Analyzer）为例，简述了该系统的基本原理、硬件和软件组成。TIMA是基于扫描电镜和能谱分析的岩石矿物全自动化定量分析系统，能同时进行极高分辨率的背散射与X射线能谱快速成像，且配备专业的矿物处理软件辅助分析结果并生成报告。该系统在岩矿研究方面主要有以下方面的功能和应用：①获取岩矿样品的整体形态和矿物及元素的种类、含量及分布；②查明矿物的结构构造、共生、连生和包裹关系特征；③提供特定矿物和亮相搜索模块，可以快速准确寻找细小目标矿物和金、银和铂等贵金属以及稀有、稀土金属。TIMA系统将分析测试和数据处理分开，可满足不同用户需求，对矿物成分和结构的定量解析达到微米的尺度，相对于传统光学显微镜和扫描电镜在地学微区信息提取方面具有不可代替的优势。文章以榴辉岩、蚀变蛇纹岩和花岗岩-伟晶岩的全岩矿物组成和成分，古沉积物反映沉积环境的演化，稀土矿石的元素赋存状态和矿物共生组合关系，金、银和锆石等特定矿物的寻找，变形和出溶结构，锆石和石英的阴极发光联用以及优化选矿工艺流程等具体实例展示了TIMA在岩矿研究中的应用。
Abstract:In recent years, automated mineral quantitative analysis systems have been increasingly widely used in geology, petroleum, mining, metallurgy, archaeology, and the environment. Domestically, the application of this system in petrology and mineralogy study is just getting started. This paper takes TESCAN Integrated Mineral Analyzer (TIMA) as an example to present the fundamental principles, instruments, and software that constitute this system, as well as its application in petrology and mineralogy. TIMA is an automated quantitative analysis system for rocks and minerals based on scanning electron microscopy (SEM) and energy-dispersive X-ray spectrometry (EDS). It can obtain high-resolution back-scattered electrons images and EDS data simultaneously and use professional mineral processing software to assist analysis results and generate reports. The system has the following main functions and applications:① Obtain the overall morphology of the rock samples and the classification, abundance, and distribution of minerals and elements; ② Identify the mineral structure, association, interlocking, and inclusion relationship characteristics; ③ Find out the locations of the minor target minerals of interest and precious metals such as gold, silver, and platinum as well as rare metal and rare earth elements. Both online analysis testing and offline processing data TIMA software systems were used to meet different users' needs. Compared with traditional optical microscopes and scanning electron microscopes, TIMA has irreplaceable advantages in extracting geological information from micro-regions. This paper reviews the application of TIMA in petrology and mineralogy study, including the mineral abundance and whole-rock chemical compositions of eclogites, altered serpentinites, and granite-pegmatite; paleo-sediments reflecting the evolution of the sedimentary environment; the elemental deportment and mineral association of rare earth element ores; the search of specific minerals of interest such as gold, silver and zircon; deformation and dissolution structure and texture; combined cathodoluminescence of zircon and quartz and the optimization of mineral processing process.
keywords:geology TIMA scanning electron microscopy energy-dispersive X-ray analysis automated quantitative mineralogy
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基金项目:本文得到国家自然科学基金项目（编号：41973036）资助
引用文本：
陈倩,宋文磊,杨金昆,胡轶,黄军,张涛,郑国顺.2021.矿物自动定量分析系统的基本原理及其在岩矿研究中的应用——以捷克泰思肯公司TIMA为例[J].矿床地质,40(2):345~368CHEN Qian,SONG WenLei,YANG JinKun,HU Yi,HUANG Jun,ZHANG Tao,ZHENG GuoShun.2021.Principle of automated mineral quantitative analysis system and its application in petrology and mineralogy: An example from TESCAN TIMA[J].Mineral Deposits40(2):345~368
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