中国东北地区赋煤构造单元与控煤特征

Tectonic units of coal occurrence and their characteristics of controlling coal in Northeast China

中国东北地区赋煤构造是在太平洋地球动力学体系影响下形成的一系列NE—NNE向断陷盆地,目前对本区赋煤构造单元划分尚未形成统一认识。根据东北地区含煤岩系赋存特征,将东北赋煤构造单元划分为三级体系,即:东北赋煤构造区—3个赋煤构造亚区—11个赋煤构造带。以地球动力学理论为基础,以构造控煤特征为研究主线,探讨了三级赋煤构造单元的基本控煤特征。该项研究对煤炭资源评价和勘查具有重要意义。

The coal occurrence tectonic in Northeast China formed a series of NE-NNE faulted basins because ofpacific geodynamics system. There is no common understanding on coal occurrence tectonic unit at present. In thispaper, according to coal-bearing strata characteristics in Northeast China, tectonic units of coal occurrence can bedivided into systems of three levels： the northern coal occurrence tectonic district, three coal occurrence tectonicsub-districts and eleven coal occurrence tectonic zones. Based on the theory of earth dynamics, structural control ofcoal as main line, and the control coal characteristics of each level, occurrence tectonic units are discussed. It isvery important for evaluation and exploration of coal resource by developing the research of coal occurrencetectonic units in Northeast China.