为了研究华北地区晚古生代海侵事件沉积古地理分布,采用层序地层学、沉积学、煤地质学等多学科综合方法,将研究区地层划分6个层序,进行了陆表海层序的海侵事件古地理分析,研究结果表明:层序1突发型海侵沉积期海水由东北向西南侵入,以台地相和潮坪相沉积为主,事件沉积组合主要集中在华北中北部地区.层序2海侵事件沉积明显,海侵体系域主要是由庙沟-毛儿沟沉积期沉积而成,为最大的海侵事件,全盆地主要为台地相,聚煤中心南移至华北中部的山西地区.层序3海侵体系域古地理的海侵范围局限于华北中南部和南部地区,海侵事件发生于南华北地区,聚煤中心南移周4,参9.
In order to study distribution of the transgresive event paleogeography about the Late Paleozoic of North China, sequence stratigraphy, sedimentology, coal geology and their integrative methods were applied to analyzed to the sequence strata and transgressive event paleogeography. The result shows that:in the time of sequence 1th, the event transgression happened from NE to SW. There are mainly platform facies and tidal facies. And the combination of event distributed the North Centre of North China. Transgressive event deposits are very obvious in the sequence 2th, when TST is the depositional stage of the Miaogou-maoergou, which are the largest transgressive event. Platform facies are the main facies of the basin. The centre of coal accumulation lies in Shanxi Prinvince, where are the middle areas of the North China. The scope of transgressive event of sequence 3th was limited to the south and middle south of North China. So the transgressive event firstly happened in the south of North China and the centre of coal accumulation moved towards south. 4figs., 9refs.