查询词典 Cretaceous

In working area and its adjacent area, the forming tectonic setting of Indosinian intrusion was that orogenic belt pressed strongly, intracontinental subduction; that of early Yanshan movement epoch was the stress field transferred from compression to extension meanwhile the incrassate crust of orogenic zone turned to extensional collapse; and that of early Cretaceous volcanics was that the area structure extensional collapse further more during the post period of orogenic phase.

研究区及邻区印支期侵入岩形成于造山带强烈挤压陆内俯冲的构造环境；燕山早期侵入岩形成于由挤压转向拉伸、造山带的增厚陆壳开始发生伸展垮塌的构造环境；早白垩世火山岩形成于造山期后进一步发生伸展垮塌的区域构造环境。

Through U-Pb isotope age study in sheeted dike complex, has gained the isochrone age is114-133Ma.The age is early cretaceous,which indicates the time of formation of sheeted dikecomplex.

另外，在该蛇绿岩套中的岩墙群进行了单颗粒锆石U－Pb同位素测年，获得的表面年龄值为 114－133Ma 之间，时代为早白垩世，基本反映了席状岩墙群的成岩年龄。

Based on the analyses of bio-markers and geochemical data, the abundance of organic matter, the construction of biological source, sedimentary environment, maturity and the oil-generating potential of the source rocks in the lower Cretaceous Duoba and Langshan formations in the Cuoqin basin have been studied.

应用生物标志物分析技术，结合其它地化资料，对青藏高原措勤盆地下白垩统多巴组、郎山组烃源岩，进行了有机质的丰度、生源构成、沉积环境、成熟度及成油潜力等方面的初步研究。

Except for HIMU-type OIB with negativeΔ7/4 ratios in the Wandashan massif, all other rocks have positiveΔ7/4 andΔ8/4 values, a feature of the Laurasia continent in the Northern Hemisphere.2 In the southern Hinggan Mountains distributes a Cretaceous felsic igneous rock belt characterized by highly positive-ε_ T_(DM = 0.42～0.64Ga,ε_ =+4.0～+5.9 and radiogenic Pb ~(206Pb/~(204)Pb = 18.36 ~ 18.56 isotope compositions.

除完达山外来拼贴地体的HIMU型OIB具有负的△7/4值，东北地区中生代火成岩都为正的△7/4和△8/4值，显示出亲北方劳亚大陆的岩石圈属性。2在大兴安岭南区林西-霍林河地区存在一条近似平行索伦-贺根山-小兴安岭古缝合带的高ε_早白垩世中酸性火山岩组合。

According to the data of the core and dense well log, in this paper a high-resolution sequence stratigraphic correlation is made to the Saertu reservoirs of Member 2 and 3 of Cretaceous Yaojia Formation in the Yingtai oilfield of Songliao basin.

应用岩心、油田开发区密井网资料，对松辽盆地英台油田白垩系姚家组第二和第三段进行高分辨率层序地层对比，并对高频基准面旋回内单砂体的发育特征和空间展布规律进行研究。

Gideon Mantell also found Hylaeosaurus in 1833, which was living in Early Cretaceous.

这是世界上第3只恐龙。

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。

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。

Such assertiveness punctures happy Euro-dreams of a multipolar world.

如此的笃定刺破了欧洲的多级世界幸福幻想。

It's like that annoying Cranberries song.

就像那烦人的小红莓的歌