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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.图4,参9.
In order to study the paleogeographic distribution of late Paleozoic transgression events in North China, stratigraphy, sedimentology, coal geology and other multidisciplinary integrated methods were used to divide the stratigraphy of the study area into 6 sequences and to conduct sea surface transgression The paleogeographic analysis of the events shows that: the sudden onset of sequence 1 intrusion transgresses the seawater intrusion from the northeast to the southwest, mainly the platform facies and tidal flat facies, and the event sedimentary assemblages are mainly concentrated in the north central part of North China. 2 transgression event deposition is obvious, the transgressive system tract is mainly deposited from the Miaogou - Maoergou depositional stage, is the largest transgression event, the basin mainly for the platform phase, the coal center to the south of central Shanxi The sequence of transgression system Paleogeography transgression is confined to the middle and southern parts of southern China and the southern part of China, with the transgression event occurring in the southern part of North China and the coal accumulation center moving southward.