广西上林县万福矿区煤中稀土元素地球化学特征Geochemical Features of Coal REE in Wanfu Coalmine Area, Shanglin County, Guangxi
朱士飞,曹泊,王佟,秦云虎,吴蒙,曹磊
摘要(Abstract):
通过对广西上林万福煤矿中18个煤样进行电感耦合等离子质谱分析,测定了稀土元素含量,对煤中稀土元素的配分模式、赋存形式和物质来源进行了讨论。结果表明,万福煤中稀土元素含量为88. 8~1 028. 5μg/g,平均值为362. 1μg/g,高于全国煤中稀土元素平均含量。上地壳标准化稀土元素配分模式具有左低右高的特征,表明煤中稀土元素受到了后期富含重稀土流体的改造。弱的Eu异常以及REE与Al2O3和Ti O2呈正相关,表明万福煤中稀土元素主要来自于陆源碎屑物质。万福煤矿稀土元素氧化物含量为0. 021%~0. 244 3%,平均值为0. 086 3%,其中轻稀土氧化物含量为0.015 2%~0. 148 9%,平均值为0. 05%,高于边界品位,具有开发前景,可以作为提取稀土元素的原材料。
关键词(KeyWords): 稀土元素;地球化学;万福煤矿
基金项目(Foundation): 中国煤炭地质总局科技专项基金(ZMKJ-2019-J12);; 国家大型煤炭基地开发潜力评价研究项目、绿色煤炭资源评价技术规范(2M kJ-2019-B07)、煤中锗、镓、锂、稀土地质评价规范(2M kJ-2019-B13)等项目资助
作者(Author): 朱士飞,曹泊,王佟,秦云虎,吴蒙,曹磊
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