通过区域地质调查工作,笔者在滇西银川街观音寺一带原属奥陶—泥盆系中采获寒武纪芙蓉世中期的化石,确定为寒武系芙蓉统的沉积。结合区域地层对比,将观音寺一带原划为奥陶系蒲缥组、奥陶系—志留系仁和桥组、志留系栗柴坝组和泥盆系何元寨组厘定为芙蓉统沙河厂组,这一发现改变了观音寺一带的地层分布格局,提高了该地区的基础地质研究程度,对重塑该区域的地质发展起到了重要意义。 Through the regional geological survey, the author collected mid-term fossils from the Furongxi Middle Period in the Ordovician-Devonian, which belonged to Guanyin Temple in Yinchuan Street, western Yunnan and confirmed the sedimentation of the Hierarchy. Combined with regional stratigraphic comparison, the area of ​​Guanyin Temple was originally designated as Ordovician Pu Pu group, Ordovician-Silurian Renheqiao Formation, Silurian Lichaiba Formation and Devonian Heyuanzhai Formation as Furong Shahe This discovery changed the stratigraphic distribution pattern of the Guanyin Temple and improved the degree of basic geological research in the area, which played an important role in reshaping the geological development in this area.