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通过野外和室内综合研究，本文认为晋中北晚古生代山西组是以河控作用为主、兼受潮汐作用改造的浅水三角洲沉积，并总结了浅水三角洲的沉积特点。聚煤作用主要发生在上三角洲平原泛滥盆地、下三角洲平原分流间湾充填变浅、废弃三角洲朵叶各部位发展起来的泥炭沼泽环境。
Through field and indoor comprehensive studies, this paper argues that the late Paleozoic Shanxi Formation in Jinzhongbei is a shallow delta that is dominated by the river control and tidal effect, and the sedimentary characteristics of the shallow water delta are summarized. The coal accumulation mainly occurred in the upper delta plain flooding basin. The lower delta plain shoal bay was shallowed and abandoned the peat swamp environment developed in various parts of the delta leaf.