电子探针对铌钽矿的定量分析  

EPMA quantitative analysis of niobium tantalum ore

作　　者：郭腾达 徐爽 林培军[1,2] 李凤春 王继林[1,2] 顾清宇 石磊[1,2] 赵龙 郭涛[3] GUO Teng-da;XU Shuang;LIN Pei-jun;LI Feng-chun;WANG Ji-lin;GU Qing-yu;SHI Lei;ZHAO Long;GUO Tao(Shandong Zhengyuan Geological Resources Exploration Co.Ltd.,Shandong Jinan 250101;Testing Center of Shandong Bureau of China Metallurgical Geology Administration,Shandong Jinan 250014;The Second Exploration Team of Shandong Coalfield Geological Bureau,Shandong Jining 272000,China)

机构地区：[1]山东正元地质资源勘查有限责任公司,山东济南250101 [2]中国冶金地质总局山东局测试中心,山东济南250014 [3]山东省煤田地质局第二勘探队,山东济宁272000

出　　处：《电子显微学报》2021年第6期671-678,共8页Journal of Chinese Electron Microscopy Society

基　　金：中国冶金地质总局山东局科研项目(No.YJDZ[2019]107)。

摘　　要：铌和钽为稀有金属,同时也是重要的关键金属,具有广泛的用途及重要的战略意义,因此,对国内铌钽矿床的研究是一项十分重要的工作。本文通过电子探针对铌钽矿进行测试。铌钽矿中常含有Ti、Sn、W、Zr等元素类质同象混入物,导致铌钽矿的测试经常受到元素间的干扰,因此本文在定量分析前进行定性分析,选用合适的方法对各元素进行谱线干扰修正,有效避免元素间的干扰,从而得到铌钽矿的准确成份。排除干扰后,通过铌钽矿核边的电子探针数据,可确定元素间的相互关系,对铌钽矿的成矿演化和找矿预测具有重要意义。Niobium and tantalum are rare and important key metals,which can be applied in a wide range of uses and are considered strategic resources.Therefore,the study of Niobium Tantalum Ore in China is a very important work.In this paper,the niobium tantalum ore was tested by EPMA.Niobium tantalum ore often contains isomorphic mixture of Ti,Sn,W,Zr and other elements.As a result,the test of niobium tantalum ore is often interfered by other elements.To solve this,this paper conducted qualitative analysis before quantitative analysis,selecting appropriate methods to correct the spectral line interference of each element,through which effectively avoided the interference between elements and obtained the accurate composition of niobium tantalum ore.After eliminating the interference,the relationship between the elements can be determined by the EPMA data of the core and the edge of niobium tantalum ore,which is of great significance to the metallogenic evolution and prospecting prediction of niobium tantalum ore.

关 键 词：电子探针 铌钽矿 谱线干扰修正 

分 类 号：P575.1[天文地球—矿物学] TG115.215.1[天文地球—地质学]