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经过对则木河活动断裂带的 1∶5万地质填图及重点地段开挖槽探和剥土 ,采集了年代样品与构造岩薄片样 ,实测断错地貌 ,同时进行了研究区的航、卫片解译 ,并对前人所作工作成果进行了分析。在此基础上我们对该区活动断裂带的平面展布、几何结构、不同时期的活动习性以及它的形成机制、运动形式等方面作了深入的探讨 ,包括全新世断裂的研究和它的未来强震危险性估价。本成果的整理发表 ,对开发西昌地区 ,振兴西昌经济 ,促进川、滇两省边界地区经济的发展提供了有利条件 ,同时也可作为有关方面的参考。
After 1: 50000 geologic mapping of the Zemuhe active fault zone and trenching and excavation in the key sections, samples and tectonic rocks were collected from thin sections and measured fault landforms at the same time. At the same time, Wei film interpretation, and the work done by predecessors were analyzed. On this basis, we make in-depth discussion on the plane distribution, geometric structure, activity habit of different periods, its formation mechanism and movement form in active fault zone in this area, including the study of Holocene fracture and its future Strong earthquake risk assessment. The collation and publication of this achievement has provided favorable conditions for the development of Xichang, rejuvenating Xichang’s economy and promoting the economic development in the border areas of Sichuan and Yunnan provinces. It also serves as a reference for the parties concerned.