Middle Juassic marine sedimentary strata are widespread in the basin.

中侏罗统是其盆地发育最全、分布最广泛的海相沉积层系.

Simple disconformities between adjacent sedimentary strata (4) record time breaks in the succession.

相邻沿积间的简单的假整合（4）记录着时间序列上的间断。

The Shixi Formation which rests unconformably on the Ehulin Formation and is unconformably overlain by the Zhoujiadian Formation is the upper part of the Mesozoic volcanic-sedimentary strata.

石溪组以不整合覆盖在鹅湖岭组之上，其上为周家店组所覆盖的中生代火山岩地层上部。