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- In order to discuss the regularities of the cretaceous stratum change process in Linpanshan, a lot of practical environment investigations were made. 摘要为了探讨宁夏六盘山地区白垩纪地层演化的规律，进行了实际环境的地质调查。
- Cretaceous stratum i s the main gas producing zo ne in Kela a rea.It is important to know clearly the distribution of sand body of Cretaceous stratum in Kela area for exploitation in the future. 勘探早期，由于钻井数少、井距大，地质资料的限制,用常规方法建立的储集层砂体骨架模型很难合理地认识地下砂体的分布特征。
- The results show that the Cretaceous strata located in Sancha-Sidianwas deposited in late Cretaceous. At least, it contains late Cretaceous strata. 结果表明这一带的白垩系地层沉积于晚白垩纪 ,或至少含有晚白垩纪的沉积。
- 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。
- Based on the study of the zircon SHRIMP chronology,the boundary between the Jurassic and the Cretaceous strata is located at the bottom of the sandstone in the Weimei Formation. 结合锆石SHR IM P年代学研究可以确定侏罗纪/白垩纪的界线位于前人认为的维美组上部砂岩之底。
- The controlling factors for the hydrocarbon accumulation in the Cretaceous strata in the Jiangling depression have long been one of the controversial problems. 摘要作为江陵凹陷油气勘探的领域之一，白垩系在许多关键问题上还存在分歧和争议，白垩系的成藏主控因素是争论的焦点问题之一。
- Nine sedimentary facies and nine sedimentary subfacies have been distinguished for the Jurassic and Cretaceous strata in the Lhozhag region, southern Xizang. 摘要藏南洛扎地区侏罗、白垩纪处于印度板块被动边缘一侧，共划分9个沉积相带、9个沉积亚相。
- Study on Faces of Cretaceous Stratum in Sazhang Area, Eastern Junggar Basin 准噶尔盆地东部沙帐地区白垩系沉积相研究
- Dinosaurian egg is a kind of peculiar and precious fossil in the Late Cretaceous strata, which are well-developed and widely distributed in nearly 30 basins of varied sizes and shapes in Jiangxi. 恐龙蛋是晚白垩世地层中一类特殊而又珍贵的化石。江西晚白垩世地层分布广泛，发育良好，散见于大小不一、形态各异的近30个盆地中。
- This uplifting not only resulted in the erosion or non-deposition of the Late Cretaceous strata,but also in the formation of the structural rudiment of deformation in the Kuqa Depression. 这一隆升过程不仅造成了库车坳陷全区缺失晚白垩世地层,而且也导致了库车坳陷构造变形雏形的发育。
- Study on cretaceous stratum system in Liupanshan region in Ningxia and its environment changes 宁夏六盘山地区白垩纪地层环境演化研究
- Upper Jurassic - Lower Cretaceous strata 上侏罗-下白垩统
- They represent each society stratum. 他们代表各个社会阶层。
- Sedimentary Sequence Study about Cretaceous Strata in Yanji Basin 延吉盆地白垩纪地层充填序列研究
- cretaceous stratum 白垩系地层
- the cretaceous stratum 白垩系地层
- They do not constitute a separate class or stratum. 知识分子和青年学生并不是一个阶级或阶层。
- He hates the privileged stratum. 他憎恨特权阶层。
- This is a stratum we must win over. 这一阶层，我们是必须争取的。
