As an example,the 3 D paleostructure of the boundary between Middle Eogene an...

作例，我们重建了汤原断陷早第三纪中期白垩系顶界三维构造。

The Coal Measures Strata are divided into 1 super-sequence and 3 sequences on the basis of paleostructure surface,widespread overlap unconformability,coal seam,and channel lag deposit.

根据构造运动面、大面超覆界面、煤层和河床滞将含煤岩系划分1个超层序和3个层序。