重庆中梁山矿区主要煤层的煤岩学和煤相特征
Coal Geology & Exploration(2013)
Abstract
结合国际煤岩学会(ICCP)对显微组分的新分类系统,通过绘制显微组分三元图和煤相图,对重庆中梁山矿区主要煤层显微组分和煤相特征进行了研究。结果表明:该矿区宏观煤岩类型以半亮煤为主,且构造煤较发育;显微组分中以镜质组为主,其中以基质镜质体和碎屑镜质体最为常见。煤相研究表明,本区主要煤层形成于下三角洲平原或下三角洲平原到陆相沉积的过渡环境,属于近陆相的低位沼泽环境,成煤环境受海水作用明显。
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Key words
Zhongliangshan mining area,coal petrology,coal facies,macerals
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