研究区位于康滇断隆带北段小相岭南北构造带,以安宁河断裂为界,分为东西两个地质构造单元,西部为冕宁穹隆、东部为石棉台穹,工作区位于西部冕宁穹窿北段,地质构造复杂。主要出露地层为下元古界康定群,包括下部以斜长角闪岩为主的咱里岩组和上部以变粒岩、片岩、石英岩、变砂岩、红柱石千枚岩为组合的冷竹关岩组两大套区域变质岩石地层。其中冷竹 The research area is located in the north and south of the Xiaoxiangling tectonic belt in the northern segment of the Kangdian uplift belt and is divided into two geological structural units east and west with the Anninghe fault as the boundary. The western part of the study area is Mianning dome with the asbestos dome in the east and the working area in the western corona Ning vault North Section, complex geological structure. The main exposed strata are the Lower Proterozoic Kangding Group, which includes the Lower Cretaceous amphibolite-dominated Zalali Formation in the lower part and the granodiorite, schist, quartzite, Lengzhuanuan rock two sets of regional metamorphic rock strata. Which cold bamboo