| 释义 |
Cretaceous System
基本例句
白垩系
The main types of clastic sandstones are feldspathic litharenite and lithic arkose in the Cretaceous of the Songliao basin.松辽盆地白垩系砂岩以长石岩屑砂岩和岩屑长石砂岩为特征。
Apatite fission track data suggest that the early Cretaceous strata in the Liupanshan basin were subjected to two burial heating events.磷灰石裂变径迹研究表明，六盘山盆地白垩系地层经历两次埋深加热事件。 |