中国煤田构造格局及其基本特征

Basic characteristics of coalfield tectonic framework in China

  • 摘要: 中国含煤岩系赋存的特点是煤盆地类型多样,后期构造变形的时空差异性显著;决定现今煤田构造格局的主要控制因素包括地球动力学环境、构造演化历程、深部构造属性、构造应力场作用以及煤系岩性组合特征等方面。中国大陆自晚古生代主要成煤期以来,相继经历了多期次构造运动的作用,大陆构造演化的时空非均匀性和基底属性的复杂性,导致煤田构造格局呈现复杂而有序的总体面貌。中国煤田构造格局可以划分为两大煤田构造区域、三条煤系变形构造组合带、五大赋煤构造区。以赋煤构造亚区为单元,总结归纳了全国五大赋煤构造区的煤田构造特征。

     

    Abstract: The occurrence of coal-bearing strata in China is characterized by the variety of coal-bearing basins,the remarkable spatial and temporal differences of late tectonic deformations.The main controlling factors,which determine the tectonic framework of coalfields,include geodynamic environment,tectonic evolution,deep structures,tectonic stress,and lithologic combination features of coal measures.The continent of China has experienced multi-stage tectonic movements since the late Paleozoic,and due to the spatio-temporal heterogeneity of continental tectonic evolution and the complexity of basement properties,the coalfield structures present complex and ordered patterns.The coalfield tectonic framework of China can be divided into two major coalfield regions,three coal deformation zones,and five coal occurrence structural areas.Taking coal occurrence structural sub-areas as basic units,the tectonic characteristics of five coal occurrence structural areas in China were summarized in this paper.

     

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