白垩纪
- 与 白垩纪 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
It indicated evidently tropical floristic remnant and affinity in the Alsophila spinulosa community. Comparing with the fossil flora from late Cretaceous and Tertiary (i.e. Northeast China flora, Fushun flora in Liaoning, Jinggu flora in Yunnan and Shanwang in Shandong) in China, pteridophyte flora of the Reserve was quite similar to that of late Cretaceous. Nevertheless, its spermatophyte flora was little similar to that of Tertiary, where angiosperm were booming in that period.
将之与中国晚白垩纪和新生代第三纪中国东北、辽宁抚顺、云南景谷、山东山旺化石植物类群相比,发现桫椤群落中蕨类植物成分与其晚白垩纪化石植物群有着高度的相似性,而其种子植物组成与其后兴起的第三纪被子化石群不甚相似。
-
Cambrian; Ordovician; Silurian; Devonian; Mississippian; Pennsylvanian; Permian; Triassic; Jurassic; Early Cretaceous; Late Cretaceous; Eocene; Miocene; Present
寒武纪;奥陶纪;志留纪;泥盆纪;密西西比纪;宾夕法尼亚纪;二叠纪;三叠纪;侏罗纪;白垩纪早期;白垩纪晚期;始新世;中新世;现在
-
The project will make full use of Cretaceous marine, terrestrial strata and paleontological records.
项目将充分利用中国大陆发育完好的白垩纪海相、陆相地层及古生物记录,通过松辽盆地白垩系科学钻探全岩芯取样和多学科综合研究的途径,着眼于厘定反映地质事件和气候变化的层位及标志和时间格架,解决高分辨率海、陆相沉积事件的精确对比,分析地层记录中气候标志和古生物类群的地理分布,集中研究陆地和海洋环境对同一事件的响应机制,重溯白垩纪地球表层系统重大地质事件过程及成因,探究陆相烃源岩大规模形成、陆地生物群更替与温室气候变化和碳循环之间的正/负反馈关系和机制等科学问题,为预测全球长时间尺度上的气候变化趋势提供科学依据。
-
There are two branches stretched into China from Tethys during Cenomanian–Turonian in the Cretaceous, including the south branch, where occurred OAE2 in the Tibetan region, and north branch, where existed OAE2 in the southwestern of Tarim Basin too, thus it provided another evidence for OAE2's globality.
白垩纪Cenomanian-Turonian时期古特提斯海伸向我国的南北两个分支,其南支在西藏地区存在OAE2大洋缺氧事件,而北支在塔里木盆地西部也存在OAE2事件,这对丰富我国白垩纪事件研究、进行全球白垩纪OAE2大洋缺氧事件对比及其成因机制的探讨、查清塔里木盆地白垩纪古环境和烃源岩大规模形成的古气候控制因素以及白垩纪海相生物群演化、更替及其与重大地质事件的联系等具重要意义。
-
Sauropelta(Ornithischia,Thyreophora,Ankylosauria,Nodosauridae),Early to early Late Cretaceous,7-8m
蜥结龙(鸟臀目,装甲亚目,甲龙类,结节龙科),白垩纪早期到晚白垩纪早期,体长7-8米。
-
The study on microstructure characteristics of the five pores on the surface of ostracoda at Nenjiang Formation of Songliao Basin in Cretaceous shows that during the depositional period of Nenjiang Formation in Cretaceous,Songliao Basin should be a continental depositional system and palaeolacustrine enviroment and furthermore its water body property should be fresh saltish.
本文对松辽盆地白垩纪嫩江组介形类化石壳体表面毛细管孔的显微构造特征研究表明,白垩纪嫩江组沉积时期,松辽古湖盆应为一陆相沉积体系,其水体性质应为淡水—少盐水的古湖泊环境。
-
Spinosaurus(Saurischia,Theropoda,Tetanurae,Spinosauroidea),Early to early Late Cretaceous,up to 17m?
棘龙(蜥臀目,兽脚类,坚尾龙类,棘龙超科),白垩纪早期到晚白垩纪早期,体长最长可达17米。
-
Carcharodontosaurus(Saurischia,Theropoda,Tetanurae,Carnosauria,Carcharodontosauridae),Early to early Late Cretaceous,up to 14m
鲨齿龙(蜥臀目,兽脚类,坚尾龙类,食肉龙类,鲨齿龙科),白垩纪早期到晚白垩纪早期,体长可达14米。
-
The event of collision between Lasha block and Qiangtang block in Cretaceous was too weak to cause the regional tectonic effect, but only produced a little relief topograph and Cretaceous red classic deposit in Central Asia.
拉萨陆块与羌塘陆块白垩纪的碰撞本身表现并不强烈,当然也难以产生区域性的构造影响,只是在准平原化基础上产生一些地形微起伏,出现白垩纪红色碎屑岩沉积。
-
The sedimentary characteristics in Xuefeng area suggested that Xuefeng experienced complex vicissitudes of uplift-depression from Sinian to Cretaceous, it can be divided into five stages, including carbonate slope-shelf basin in Early Sinian-Middle Ordovician, uplifting and denuding in Late Ordovician-Late Carboniferous, carbonate platform in Permian, carbonate shelf in Early Triassic, uplift and intermountain basin in Middle Triassic-Cretaceous.
雪峰及其周缘地区的地层沉积特征则表明,震旦纪-白垩纪雪峰地区经历了复杂的隆凹变迁历程,可概括为五大阶段,分别为早震旦世-中奥陶世的碳酸盐斜坡-陆棚-盆地阶段、晚奥陶世-晚石炭世的隆起剥蚀阶段、二叠纪的碳酸盐岩台地阶段、早三叠世的碳酸盐陆棚阶段和中三叠世-白垩纪的隆起-陆相山间盆地阶段。
- 推荐网络例句
-
This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
-
Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
-
There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。