中国煤田构造研究进展

新一轮全国煤炭资源潜力评价工作在煤田构造与构造控煤作用研究方面取得重大进展,整体深化了对中国煤田构造发育规律的认识。提出赋煤构造单元的概念,建立了赋煤构造单元区划层次结构,系统总结了各赋煤构造区构造单元的煤田构造特征。从煤系变形控制因素角度,揭示了中国煤田构造展布的分区分带特征,把中国煤田构造格局划分为两大构造区域、三大煤系变形带、五大一级赋煤构造单元。提出煤盆地构造类型划分方案,研究了主要聚煤期古构造格局及其对成煤盆地发育的控制作用,恢复了煤田构造演化历程。建立了控煤构造样式分类方案,强调构造变形和构造形态对煤系现今赋存状态的控制作用,使构造控煤有了明确的载体。

Progresses in Chinese Coalfield Structural Research

Great progresses have been achieved in researches on coalfield structures and structural control of coal in the new round of national coal resources potential evaluation. It deepens the cognition on Chinese coalfield structure development pattern overall. In the paper, a notion of coal hosting tectonic unit has been proposed, hierarchical structure of coal hosting tectonic unit division built, coal-field structural features of each coal hosting tectonic unit summarized systematically. From coal measures deformation controlling factors point of view, the paper has revealed Chinese coalfield structures distribution partitioning and zoning features. It divides Chinese coalfield tectonic configuration into two tectonic regions, three coal measures metamorphic belts and five first order coal hosting tectonic units. Coal basin structure types division scheme has been proposed in the study, main coal-accumulating period paleotectonic configuration and its controlling effect on coal basin development studied, thus restored coalfield structural evolution history. Classification scheme of coal controlling structural patterns established;it emphasized the controlling effect of structural deformation and structural form on present coal measures hosting status, made structural control of coal has a clear supporter.