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根据岩石组合、物质成分、沉积结构、沉积构造、古生物及粒度分析等结果,跳马涧镇跳马涧组可划分为上、下两个岩性段。下段为陆相的辫状河沉积,上段为滨海相的潮坪沉积。
According to the results of rock assemblage, material composition, sedimentary structure, sedimentary structure, paleontology and particle size analysis, the Komagan Stream in the Komazian town can be divided into upper and lower lithology. The lower part is continental deposition of braided river, and the upper part is tidal flat sediment of coastal phase.