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根据岩石地层学、地貌地层学特征及年代学依据，划分了川西南雷波地区第四纪不同时期的洞外地层，并确定了其沉积类型，建立了第四纪地层系统；在此基础上讨论了本区第四纪环境的演化过程，为研究、评价第四纪岩溶发育规律及其对工程的影响，提供了第四纪不同时段的古环境背景资料。
Based on lithostratigraphy, geomorphologic stratigraphy and geochronology, the subterranean strata in different periods of Quaternary during the Leibo area in southwestern Sichuan were identified and their sedimentary types were determined and the Quaternary stratigraphic system was established. On this basis The evolution of Quaternary environment in this area was discussed. Paleoenvironmental background information of Quaternary period was provided for the study and evaluation of Quaternary karst development and its impact on the project.