贵州遵义吴家寨背斜晚二叠世煤层稀土元素地球化学特征  

Geochemical Characteristics of Rare Earth Elements in Late Permian Coal Seam of Wujiazhai Anticline, Zunyi, Guizhou

作　　者：杨旭[1] 刘志臣[1,2] 李隆富 汪洋[1] YANG Xu;LIU Zhi-chen;LI Long-fu;WANG Yang(The 102 Geological Team,Guizhou Bureau of Exploration and Development of Geology and Mineral Resources,Zunyi 563003,China;College of Earth Sciences,China University of Geosciences,Wuhan 430074,China)

机构地区：[1]贵州省地矿局一○二地质大队,贵州遵义563003 [2]中国地质大学地球科学学院,武汉430074

出　　处：《煤炭技术》2019年第10期52-54,共3页Coal Technology

基　　金：贵州省地质矿产勘查开发局地质科研项目资助(黔地矿科合[2017]37号)

摘　　要：借助电感耦合(ICP^MS)现代分析方法,对遵义吴家寨背斜煤层元素地球化学特征进行了系统研究。结果表明:煤中稀土元素分配模式曲线呈明显的左高右低(或)右近于水平的的宽缓的"V"字形,且存在明显的Eu负异常,说明煤中稀土元素主要来自陆源物质的供应。该区轻、重稀土有明显的分离,轻稀土元素相对富集,煤中稀土元素ΣREE平均值明显高于全国煤中ΣREE平均值,有可能成为稀土矿产的新来源。The element geochemical characteristics of Wujiazhai anticline coal seam in Zunyi were systematically studied by inductive coupling(ICP to MS) modern analysis method.The results showed that the distribution pattern of ΣREE in coal is obviously left-high-right-low(or) Right near the horizontal "V" shape, and there is obvious negative Eu anomaly, indicated that the ΣREE in coal mainly come from the supply of terrestrial materials. in this area,the light and heavy rare earth elements are obviously separated, and the light rare earth elements are relatively enriched in this area. The average value of ΣREE in coal is obviously higher than the average value of ΣREE in coal in China. It may be a new source of rare earth minerals.

关 键 词：晚二叠世煤层 稀土元素 吴家寨背斜 

分 类 号：P59[天文地球—地球化学]