白垩

Cf. D. apletopora. The results of microfossil analysis have demonstrated the occurrence of marine Jurassic and Cretaceous in the north of the South China Sea.

微体化石分析结果表明，南海北部珠江口盆地被首次揭露的前新生代地层中存在着海相的侏罗系和白垩系。

The uplifting event in the north of boundary occurred in Miocene,and that in the south of boundary occurred in Late Cretaceous.

这一隆升过程在特提斯北缘的盆地群中都有表现，而隆升的形成是青藏高原地区Kohistan-Dras岛弧与拉萨地体在晚白垩世时期的碰撞事件远距离效应的结果。

By means of the match relation between hydrocarbon concentration seal formation period of mudstone ca...

以松辽盆地三肇凹陷下白垩统青山口组和登娄库组二段泥岩盖层为例，研究了其浓度封闭演化特征及其在气藏形成中的作用。

The 40Ar/39Ar data of plagioclase from mylonite indicate a high-speed cooling event experienced by the Tan-Lu fault zone which took place at 97～92 Ma.

剪切带糜棱岩中斜长石 40Ar/39Ar年龄指示剪切带在晚白垩世存在一期快速冷却事件，此次快速冷却事件的时间为 97～ 92 Ma。

He set a canvas on the easel and painted a coat of lead white and chalk mixed with a bit of burnt sienna and yellow ocher.

他在画架上摆好画布，涂上一层铅白和白垩，混着一点焦黄和赭黄。

In this article the research of pinaceous fossil cones from the Creaceous to the Oligocene in the Tertiary is reviewed and summarized systematically.

本文主要对早白垩世到老第三纪渐新世这段时间的松科化石球果的研究作了系统回顾和总结。

The role of the mantle plumes are not the same, among which the role of the Tristan plume in Early Cretaceous and the Afar plume in Early Oligocene is the most critical.

这些地幔热柱所起的作用不尽相同，其中以早白垩世的Tristan热柱和早渐新世的Afar热柱的作用最为重要。

These stages can be generalized into four cycles: 1 lower Cretaceous to lower Eocene; 2 middle Eocene to Oligocene; 3 Oligocene to Neocene; 4 Quaternary.

从而可以划分出四个构造旋回：1早白垩世—早始新世；2中始新世—渐新世；3渐新世—晚第三纪；4第四纪。

Another narrative weaves through Ellie's story on Secrets of Eromanga, that of the young, female Cretaceous ornithopod.

另一个故事藉由Ellie在Eromanga的秘密是由年轻人的叙述，一只母的白垩记的鸟脚龙。

A new ornithopod dinosaur, Lanzhousaurus magnidens gen. et sp. nov., from the Early Cretaceous of the Lanzhou Basin, Gansu Province, China, possesses the largest teeth of any herbivorous dinosaur yet discovered.

巨齿兰州龙是发现于中国甘肃省兰州盆地早白垩世地层中的一新鸟脚类恐龙，其牙齿是世界上已知植食性恐龙中最大的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。