宁武煤田轩岗矿区2#煤中锂的分布规律和来源分析Coal No.2 Lithium Distribution Pattern and Provenance Analysis in Xuangang Mining Area, Ningwu Coalfield
左贵彬,李鸿豆,孙明晓,蔺敬妍,王志勇,田泽奇,肖林
摘要(Abstract):
对宁武煤田轩岗矿区13个煤矿2~#煤采集了98(含夹矸)个样品,运用煤地球化学以及沉积学等学科理论知识,结合X射线荧光光谱分析(XRF)、电感耦合等离子质谱分析(ICP-MS)等技术手段对样品进行测试分析。结果显示,宁武煤田轩岗矿区2~#煤中锂的载体主要为硅酸盐矿物。锂元素含量总体变化呈北高南低的趋势,北部矿区沉积物源主要是来自北部阴山古陆和吕梁半岛的花岗岩、玄武岩和沉积岩类,南部矿区沉积物源主要是沉积岩类,相对于北部较为单一。
关键词(KeyWords): 锂;赋存状态;分布规律;宁武煤田
基金项目(Foundation): 河北省自然科学基金项目“华北南部煤中锂富集机理的锂同位素研究”(D2021402036);; 河北省高等学校科学技术研究项目“蔚县煤田侏罗纪富惰质组煤形成机理及地质意义”(ZD2020184)
作者(Author): 左贵彬,李鸿豆,孙明晓,蔺敬妍,王志勇,田泽奇,肖林
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