查询词典 Cretaceous

It now proves to be a late-stage red bed in late cretaceous from the evidence as Charophyta fossil we gathered.

本文根据采得的轮藻化石证实为晚白垩世晚期红层。

Qingyang pterosaur found before only found in the Junggar pterosaur fossils of the Cretaceous pterosaur is even; and Qingyang pterosaur pterosaur Junggar than earlier, more primitive Chiroptera late Jurassic pterosaur dragon type.

庆阳翼龙发现之前，仅仅在新疆准噶尔发现过翼龙化石，尚且是白垩纪的翼龙；而庆阳翼龙是比准噶尔翼龙更早、更原始的晚侏罗纪翼手龙类翼龙。

It not only ends the dispution about the time of the Mt. Yandangshan World Geopark volcanic rocks, but also ofifers chronologic limits for both stratigraphic divisions of Cretaceous volcanic rocks in eastern Zhejiang and the Yanshanian Movement in Southeast China.

这不仅解决了有关雁荡山世界地质公园火山岩形成时代的争议，也为解决浙江东部白垩纪火山岩地层划分对比提供了良好的年龄约束，同时也为探索中国东南部燕山运动提供了年龄约束。

Notably, a single ejecta-rich deposit compositionally linked to the Chicxulub impact is globally distributed at the Cretaceous-Paleogene boundary.

在一篇Review中，Peter Schulte和一个来自世界各地的研究人员队伍将各种支持撞击假说的地质学证据进行了综合。

A set of Triassic-Cretaceous terrestrial detrital rocks from 3000 meters to 4000 meters in thickness were developed in the southern edge of Altyn Mountain in the western Qaidam Basin.

柴达木盆地西部的阿尔金山南缘自三叠系到白垩系发育了一套陆源碎屑岩，厚度可达3~4km，露头条件非常好。

The organic laminae in the argillaceous limestone and dolomitic mudstone of lower Cretaceous are abundant in Jiuquan basin, but it′s heterogeneity is obvious that mainly shows that the difference of laminar algal contents are very large between the same formation and different areas and same well and different depth.

酒泉盆地下白垩统纹层状泥质白云岩和白云质泥岩中有机纹层结构发育，但非均质性很强，主要表现在相同层位不同地区及同一钻井不同深度藻纹层的含量悬殊。

The Danxia Landform in Jiangxi Province was formed mainly in red beds in the upper Cretaceous. It is generally the by-product of the new neotectonic movement's intermittent uplift companied with faults' downcut, running water's scouring, weathering and degradation.

江西省丹霞地貌主要发育于晚白垩世红色岩层中，是晚第三纪以来新构造运动间歇性隆升、断裂切割、流水冲刷和风化剥蚀的产物。

Mosasaurs breathed air and were powerful swimmers that were well-adapted to living in the warm, shallow epicontinental seas prevalent during the Late Cretaceous Period.

默兹河蜥必须呼唤空气生存，白垩纪后期浅浅的陆缘海随处可见，默兹河蜥已经很好地适应了这种环境，成为十分强劲的游泳能手。

New reliable UPb age dates of the extensive Cretaceous igneous rocks in the eastern Himalayas suggest that these rocks were emplaced at about 132 Ma, and may represent the erosional and/or deformational remnants of the newly identified ComeiBunbury large igneous province.

新的可靠的锆石UPb年龄指示喜马拉雅带东部措美地区大面积出露的白垩纪火成岩侵位于132 Ma左右，代表了新近在藏南和澳大利亚南西部识别出的经历了强烈变形和深位侵蚀的ComeiBunbury大火成岩省的残余。

There are also a number of fossil genera, leptosporangiate ferns dating back to the Cretaceous era, eusporangiate ferns to the Devonian.

有化石证据表明，薄囊蕨从白垩纪时就有，而厚囊蕨可追溯到泥盆纪。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。