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- The bioclastic shoal and ooid shoal are common in geological history. 滩一般包容了坝、脊、洲、丘等沉积体。
- As hoped, clear stratification - the layering that records geological history - can be seen in the rock. 他们如愿以偿地在岩石上看到了清晰分层。正是这些岩层,记录了地质的演化史。
- So, the area of Nianbaoyuze completely recorded the geological history of the whole Tethys Sea's evolution . 因此,年保玉则地区完整、系统地记录了整个特提斯洋开启的地质历史。
- The development of the Fjordland and Westland area and comparison to other areas in the world with a similar geological history. 福德岛和西部地区的发展状况以及和世界上类似的地质历史地区的比较。
- Various endogenic processes in the geological history created the characteristics and geomorphic features of the surface rocks that are r... 温暖潮湿的季风气候为喀斯特地貌的强烈发育提供了必要的溶蚀条件,超载的社会经济压力则是导致喀斯特山区土地石漠化最重要的驱动力。
- The contrast analysis of thermal simulation to actual geological condition shows that this rule exists in geological history. 通过模拟条件与实际地质条件的对比分析认为,在地质条件下也存在上述规律。
- The geodynamic environment in which foreland basin is developed is rather limited both temporally and spatially in the geological history. 在地质历史上,适于前陆盆地发育的地球动力学环境,在时间和空间上均是相当有限的。
- Abstract It has been disputed for a long time whether tectonic and minerogenic cycles did ever exist through geological history. 摘 要 构造与成矿活动是否具有旋回性是地质界长期争论的一个命题。
- Palaeogeography is a science to study the physical geographical characteristics and their evolution in the geological history and human history. 摘要古地理学是研究地质历史时期和人类历史时期自然地理特征及其演化的科学。
- The shoal (or bank) and shoal facies are important types of carbonate deposits.The bioclastic shoal and ooid shoal are common in geological history. 摘要滩或滩相是碳酸盐沈积中的重要类型,常见的有生物碎屑滩和鲕粒滩。
- Then use antitone structural analysis method to recognize and reconstruct the primary tectonic structure and sedimentary feature of a basin in certain geological history. 要认识和重建某个地质历史时期盆地的原始构造格局和沉积特征,就必须除去后期叠加的构造层和构造变形,即反序构造分析法。
- The idenfication of the granitic gneiss has a great significance to study the old metamorphic rock system of Kuruktag and the crustal evolution in the early geological history. 该花岗质片麻岩的确认对重新认识库鲁克塔格一带的古老变质岩系和探讨早期地壳演化具有重要意义。
- It is generally concluded from the appearance of their heavily cratered surfaces that they have been subjected to bombardment by large meteoroids during their geological history. 这种消除作用达到了这种,使进一步的大陆的研究工作很难对大陆起源问题去得明确的答案。
- Plenty of typical geological remains were conserved in Hebei province during geological history from Archeanto Cenozoic.They have different varieties and characteristics. 在太古代到新生代的漫长地质历史时期中,河北省境内形成并保存了大量具有典型意义的地质遗迹,种类较多,特点明显。
- From inclusion and Ro data, it is clear that Pingbei strata had undergone a higher temperature gradient in geological history, which is favorable for source rock evolution. 从包体测温和镜质体反演资料推测平北工区经历了高于今地温梯度的热历史,这对平湖组烃源岩或深部烃源岩演化有利。
- If we compress the earth's 4.7 billion years of geological history into a 24-hour day, the human species arrived only about 0.1 of a second before midnight. 如果我们把地球的地质学上以及生物学上的47亿年历史一缩成一天24小时,人类物种只在午夜前0.;1秒出现。
- For the great interval of time between the Variscan orogeny and the Upper Jurassic and Cretaceous, the little evidence of the geological history comes from outwith the map sheet area. 对于华力西造山运动与上侏罗纪再到白垩纪这一大时间跨度期间,从地图图幅区域之外了解不到多少地质历史的相关证明材料。
- She crammed for her history exam. 她死记硬背以应付历史考试。
- The arid-valley scrubs formed in the time and space of the special habitat and geological history,was a intrazonal(azonal or extrazonal)vegetation of similar to aestatifruticeta-steppe in between the forest and steppe. 干旱河谷灌丛形成于特定的生态环境和地质历史的时空中,是一种处于森林与草原之间的而近似于草原灌丛的隐域性(非地带性或超地带性)植被。
- Study is made on palaeozoic conodont fossil from Bachu Uplift and Awati Depression. 5 conodont fossil assemblage zones are identified.And their geological history and geological eras are discussed. 对塔里木盆地西部巴楚断隆、阿瓦提凹陷古生代产出的牙形刺化石进行了研究,建立了5个牙形刺化石组合带,讨论了其地史分布及其地质时代。