工作区位于云南滇西保山——云龙的漕涧地区一带。本区大地构造位置据1:1500万大地构造图(地科院,大地构造组,1974)为滇藏地槽褶皱区三江地槽褶皱系澜沧江变质带。分布于澜沧江两岸的地层为前粤陶——侏罗系的变质岩系,其中崇山群呈北西——南东向狭长条带展布,延长约250公里(图1)。对崇山——风庆一带变质岩的时代, The work area is located in the Caojian area of ​​Baoshan-Yunlong in western Yunnan. The geotectonic location of this area includes 1: 15 million tectonic maps (ASTRI, Tectonic Group, 1974) as the Lancangjiang metamorphic belt of the Sanjiang Gully fold system in the Yunnan-Tibetan tremors fold zone. The strata distributed on both sides of the Lancang River are the metamorphic rocks of the former Yue Tao-Jurassic, in which the Chongsheng Group has been extended from northwest to southeast to the long strip (about 250 km) (Figure 1). The era of the Chongshan-Fengqing area metamorphic rocks,