The results show that the main rock types in Yingshan formation are micritics, calcarenite and dolomite, of which, micritics and calcarenite have the best development and the widest distribution.

• 研究区内鹰山组主要岩石类型为泥晶灰岩、砂屑灰岩和白云岩，其中泥晶灰岩、砂屑灰岩发育最好，分布最广；