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华北地台西起贺兰山、六盘山,北界阴山,南界秦岭、大别山,东至郯庐断裂,总面积约80万平方公里。从中奥陶世海侵结束之后,加里东运动使地台整体抬升,缺失上奥陶)一下石炭统沉积。中晚石炭世出现间断海侵,沉积了海陆交互相含煤建造,继又沉积了二叠系陆相碎屑岩含煤建造,从而形成了多层系的大型聚煤盆地,有利于寻找煤成气。
North China platform West Helan Mountain, Liupanshan, North Yinshan, South Qinling Mountains, Dabieshan, east Tan-Lu fault, with a total area of about 800000 square kilometers. After the Middle Ordosian transgression ended, the Caledonian movement raised the platform as a whole, missing the Upper Ordovician. In the middle and late Carboniferous, there appeared intermittent transgression and sedimentary facies coal-bearing facies assemblage of sea and land, followed by deposition of Permian terrigenous clastic coal-bearing structures, thus forming a multi-layered large-scale coal accumulation basin that is conducive to finding coal Into gas.