我国含煤地层区划的再认识

Reconsideration of Coal-bearing Stratigraphic Regionalization in China

为更好地反映我国各含煤地层发育的普遍性规律,合理地进行含煤地层的区域对比,依据现代地层学理论,采用"构造单元-沉积类型-古植物群-成煤期"四位一体的方法,在全国煤炭资源自然地理分区特点的框架下,将我国晚古生代以来的含煤地层按成煤期重新划分为2～5个含煤地层区及其所含的40个含煤地层分区。在此基础上,总结出各地层区含煤地层的总体发育特征呈"发育普遍、从海到陆;南北漂移,西北突出"的特点,较为客观地反映了我国含煤地层的时空分布规律。

To better understand the universal law of the development of Chinese coal-bearing strata and to conduct a reasonable correlation of coal-bearing strata at regional scale, based on the modem stratigraphy theory and by four-in-one method of tectonic units-sedimentary types-ancient flora-coal forming period,2-5 coal-bearing strata areas and 40 coal-bearing sub-region are classified at the geographic framework since the late Paleozoie for China.Then, the characteristics of occurrence and distribution of coal-bearing strata can be summa- rized resource as the generalized occurrence, from the sea to the land, drifting between the south and the north, highlight in the northwest. These characteristics may reflect objectively the time and space distribution law of coal-bearing strata in China.