地质时期
- 与 地质时期 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This idea fits with other geologic evidence for the closure of a Pacific-type ocean basin at that time, welding the continents into a single "supercontinent" and possibly snuffing out subduction for a while.
这个想法与其他的地质证据相吻合,共同证明了类似于太平洋盆地的板块在那个时期曾经发生了闭合,是大陆板块互相结合成为一个单独的板块-超大陆。
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Based on the analyses of the diversity of shape and structure of tarsometatarsus of living birds and its corresponding function, we can study the shape and habit of birds in the early stages, at the same time can discuss the evolutive law of functional behavior of birds in the different periods of the geologic history further too.
特别是通过对现生鸟类跗跖骨形态结构多样性与对应功能的分析,可以此作为研究早期鸟类形态习性的参考依据,同时也可进一步探讨不同地质历史时期鸟类功能行为的演化规律。
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In particular it can base on the analyses of the diversity of shape and structure of tarsometatarsus of living birds and its corresponding function,to study the shape and habit of birds in the early stages,at the same time can discuss the evolutive law of functional behavior of birds in the different periods of the geologic history further too.
特别是通过对现生鸟类跗跖骨形态结构多样性与对应功能的分析,可以此作为研究早期鸟类形态习性的参考依据,同时也可进一步探讨不同地质历史时期鸟类功能行为的演化规律。
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The continental mantle geochemical characteristics and crust-mantle evolution in the west of Yangtze Plate was discussed through the study of some within-plate basic ultrabasic rocks from Lower Proterozoic to Later Paleozoic in this paper.
本文通过对扬子板块西部从早元古代至晚古生代不同时期的多个板内基性超基性岩的地质地球化学研究,探讨了扬子板块西部大陆地幔的地球化学特征及壳幔演化机制。
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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。
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The differences in reservoiring conditions of natural gas and oil, as well as the multicycle developments and evolution histories of major gas bearing basins in China, and the geological environments characterized by relatively active tectonic movements in later period have resulted in the forming conditions of gas fields in China to be more complicated than those in many basins all over the world.
由于天然气与石油在成藏条件上的差异和中国主要含气盆地多旋回的发展演化历史、晚近时期构造运动比较活跃的地质环境,中国气田形成条件较世界上许多盆地复杂和成藏类型较多。总结中国大中型气田的成藏历程,可以新近纪、古近纪和中生代为界将气田的形成归为 4类:1超晚期生烃成藏型;2晚期生烃成藏型;3早期生烃聚集和晚期定型成藏型;4早期生烃成藏型。在这 4类中,以晚期和超晚期成藏和定型为主且分布最广、天然气前景最好、是中国天然气最主要富集领域。早期生烃成藏型在保存良好的盆地也有较好的前景。
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The syncretism of palaeogeographic research and information technology can lead to the advancement of the research method and quality, it can also supply effective technology supports for sedimentary mineral deposits in geological history.
古地理学研究与信息技术的融合不仅能使研究手段和水平得以提升,还能更好地为地质历史时期中沉积矿产勘查提供有效的技术支持。
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The evolvement of climate environment in the geological history is one important contents ofthe paleoceanography research and has an important significance.
地质历史时期古海洋气候环境的演变也是古海洋学研究中的一项重要内容,具有十分重要的意义。
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Based on the integrative analysis of seismic data, log data and petrologic character, three types of sedimentary facies can be recognized in the Yijianfang Formation.
在综合分析其岩石学特征、测井资料,结合地震资料,划分出台内滩、滩间、点礁三种沉积相,并讨论了一间房组早、晚期沉积相的空间展布特征,编制了各时期的古地理图,为油气勘探提供了地质指导。
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Fire and human activities increased the domination of oak forests because of their biological features of oak trees. Cutting repeatedly was the main reason for the domination of Quercus mongolica forest in recent 100 years in north and east China. During the succession of ...
火是原生性质蒙古栎林在地质历史时期存在和扩散的根本原因,过度的人类活动是促成现在蒙古栎次生林占优势地位的主要原因,这是由蒙古栎这个树种的生物学特性决定的,在没有外界因素的干扰和火减少的情况下,蒙古栎在演替过程中逐渐被耐荫的树种所取代,但是在中国北方,由于人类活动的加剧,蒙古栎林的优势度有增加的趋势。
- 推荐网络例句
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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.
最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。
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Only person height weeds and the fierce looks stone idles were there.
只有半人深的荒草和龇牙咧嘴的神像。
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This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.
这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。