%0 Journal Article
%T 中蒙跨境阿尔泰构造带稀有元素锂区域地球化学分布<br>Regional Geochemistry of Lithium in the Altay Area across the Boundary of China and Mongolia
%A 刘汉粮
%A 聂兰仕
%A 王学求
%A 张义波
%A 刘东盛
%A 王玮
%A 迟清华
%A &lt
%A br&gt
%A LIU Hanliang
%A NIE Lanshi
%A WANG Xueqiu
%A ZHANG Yibo
%A LIU Dongsheng
%A WANG Wei
%A CHI Qinghua
%J 现代地质
%D 2018
%X 摘要： 锂被称为21世纪改变世界的“绿色能源金属”和“白色石油”，战略意义显著。阿尔泰构造带是重要的稀有金属成矿带，开展阿尔泰地区锂资源远景优选至关重要。在中蒙跨境阿尔泰地区，按相同的工作方法(采样方法、采样介质、实验室分析测试、数据统计、图件制作)开展了约300 000 km2的1∶100万国家尺度地球化学填图，分析了包括稀有元素锂在内的69种元素，填补了中蒙边界地区稀有、稀土元素地球化学分布的空白。研究结果表明：中国境内锂元素背景值(235×10-6)低于蒙古境内锂元素背景值(259×10-6)；对于划分的构造单元而言，阿尔泰构造带、阿尔泰南缘弧盆系和准噶尔地块锂背景值和平均值均高于总体含量值，尤其是阿尔泰构造带锂含量背景值(316×10-6)和平均值(329×10-6)特征明显，说明该构造单元是锂元素的富集区；根据85%累积频率圈定出24个锂地球化学异常区并优选出3个锂地球化学省，结合地质条件讨论异常性质，为该区寻找稀有金属矿床提供了重要选区。<br>Abstract: Lithium, known as the “green energy metal” and “white oil”, is of strategic importance which plays a great role in changing the world in the 21st century.And the Altay area is an important rare metal metallogenic belt, so it is crucial to carry out the potential prospect areas of lithium resources in this area. The same methods of sampling, laboratory analysis, statistics were used in geochemical mapping in the Altay area across the boundary of China and Mongolia. In this study, the samples were analyzed for 69 elements including rare elements which were not determined before. This paper discussed the background values of lithium in different tectonic belts and the regional geochemical anomalies. In the Altay area, the background value of lithium in China side (235×10-6) is lower than that in Mongolia side (259×10-6). The background values and average values of lithium in the Altay tectonic belt, the arc basin system in the southern margin of the Altay and the Junggar block are higher than that in the wholes region. Especially the background value (316×10-6) and average value (329×10-6) of lithium distributed along the Altay tectonic belt are the highest values, showing that lithium is enriched in the Altay tectonic belt. A total of 24 lithium geochemical anomalies based on the 85% cumulative percentage have been delineated, and three of them with coverage of over an area of 1 000 km2 are potential prospect areas of lithium resources
%K 锂
%K 区域地球化学
%K 中蒙边界
%K 阿尔泰
%K lithium
%K regional geochemistry
%K boundary of China and Mongolia
%K Altay
%U http://www.geoscience.net.cn/CN/abstract/abstract14106.shtml