stratigraphic unit

• 地层分层单位,地层单元

stratigraphic unit的用法和样例：

例句

1. The Glauconite Sandstone is a persistent stratigraphic unit.
   海绿石砂岩是一个稳定的地层单元。
2. We regard them as actural stratigraphic units produced primarily by magmatic sedimentation.
   我们把它们当作实际上的地层单元来考虑，它们主要由岩浆沉积作用所产生。
3. Finally the stratigraphic ages and correlation of the Ordovician lithostratigraphic units in the study area are discussed.
   笔者认为，申扎组应被废弃，德悟卡下组底界应作修订，并对该地区奥陶系岩石地层单位进行了简要的时代讨论和对比。
4. Compared to supersequence boundaries, the depositional hiatus at sequence boundaries is shorter and sequence boundaries are not compatible with lithostratigraphic unit boundaries.
   沉积层序界面处沉积间断的时间相对超层序界面要短，与岩石地层单位界面往往不一致。