Gucheng formation which is the early deposit of Guanzhuang group is composed mainly of conglomeraterock with conglomerate-bearing sandstone and sandy mudstone.
其早期形成的固城组以砾岩为主，夹含砾砂岩及砂质泥岩。
2
Vertically, rocks near the unconformity appear layers which are in turn semi-weathering rock, weathering clay bed and basal conglomerate.
不整合附近的岩层在纵向上呈层分布：从下至上依次为半风化岩石、风化粘土层和底砾岩。
3
Wudaoliang group is grayish - white, yellow - grey, dark - grey ash rock, which interbeded with the conglomerate, sandstone, a little amount mudstone, oil shale with unconsolidated sand mud rock.