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以前川中、川西和川南的地层划分主要是依据岩性来进行的、是地方岩性地层系统划分、难于简单按所分段进行逐一对比、存在明显矛盾、造成过渡带井的地屋划分混乱。本文根据地震反射的等时性，从地震地层学，层序地层学，旋回地层学和岩石地层学的观点和方法，对川中—川南过渡带香溪群地层进行了统一的划分对比，理顺了川中—川南过渡带香溪群地层的对比关系，为进一步的地层研究提供了基础资料。
In the past, the stratigraphic division of the central Sichuan, western Sichuan and southern Sichuan was mainly based on lithology. It was a system of local lithologic stratigraphy that was difficult to be compared one by one according to the sections. Obvious contradictions led to the chaotic division of land with wells in the transition zone. Based on the isochronism of seismic reflection, this paper makes a unified division and contrast of the Xiangxi Group strata in the central Sichuan-Sichuan transitional zone from the perspectives and methods of seismic stratigraphy, sequence stratigraphy, cycle stratigraphy and lithostratigraphy The correlation between the strata of the Central Sichuan Basin and the Xiangxi Group in the transitional zone of southern Sichuan provides the basic data for further stratigraphic studies.