摘要
基于中国26个省(市、自治区)、126个矿区、504个煤矿1 123个煤层煤样和生产煤样的系统测试资料,结合不同聚煤区煤炭储量,计算了中国煤中31种微量元素平均含量,分析了中国煤中微量元素分布基本特征。研究表明,煤层是地球上多种微量元素富集的主要地质体,中国煤中大多数微量元素平均含量与世界煤中微量元素平均含量在同一水平线上。
Based on the systematical measured data of 1123 samples from 504 coalmines in 26 provinces in China, and combined with coal reserves in different coal-accumulated areas, the average contents of 31 trace elements in Chinese coals are calculated. The enrichment of trace elements in coals is studied by comparison with their crustal abundance. The results show that coal is a trace elements-richer geologic body compared with other rocks in the crust. By comparison study on information of trace elements in coals from China, US and all over the world, it can be drawn that for most trace elements, their average concentration in Chinese coals are roughly in the same level with that in coals in the world.
出处
《煤质技术》
2007年第1期1-4,共4页
Coal Quality Technology
基金
科研院所社会公益专项项目资助(2005DIB3J211)
关键词
中国煤
微量元素
分布
Chinese coals
trace elements
distribution
