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根据滇西８６－８７工程的Ｍ面反射波波形资料，对该区壳幔过渡带的细结构作了分析与探讨．资料的处理结果表明，在景谷炮北侧２７．６４ｋｍ与支梯炮南侧５８．７４ｋｍ二处得到含速度逆转的薄层组过渡带．该二处的反射点都位于上地幔顶部的低速度异常区，且壳内地震活动十分活跃，估计壳幔过渡带的这种特殊结构与地区的特点存在内在联系．本文讨论了这种壳幔过渡带可能的地质解释模型，认为它可能是由深部高速固体透镜状物质与局部熔融状的塑性低速物质交替成层构成的．提出了用于地震预报方面实际的可能途径
According to the M-plane reflection wave data of 86-87 project in western Yunnan, the fine structure of the crust-mantle transitional zone in this area is analyzed and discussed. Data processing results show that the transition zone with velocity reversal is obtained at 27.64km north of the Jinggu gun and 58.74km south of the cannon. The reflection points of these two sites are located in the low-velocity anomalous area at the top of the upper mantle, and the seismic activity in the crust is very active. It is estimated that this special structure of the crust-mantle transitional zone is intrinsically linked with the regional characteristics. This paper discusses the probable geologic interpretation model for this crust-mantle transition zone, and suggests that it may be composed of alternating layers of deep high velocity solid lenticular material and locally molten plastic low velocity material. A possible practical approach for earthquake prediction is proposed