The city council commissioned geological experts earlier this year to survey the cliffs.
该市议会今年早些时候委托地质专家们对这些悬崖进行勘测。
With geological maps, books, and atlases you can find out all the proven sites of precious minerals.
有了地质地图、书籍和地图册，你就可以找到所有已探明的珍贵矿藏的位置。
Bown and his colleagues stumbled across it while they were doing geological mapping in the region.
鲍恩和他的同事在该地区进行地质测绘时偶然发现了它。
The other islands, which emerged via geological processes such as volcanism, possessed no terrestrial life.
其他岛屿是通过如火山作用的地质作用形成的，没有陆地生命。
The hills are remnants of an earlier geological era, scraped bare of most soil and exposed to the elements.
这些山丘是早期地质时代的遗留物，大部分土壤已被刮光，遭受风吹日晒。
We were discussing the geological evidence of liquid water on Earth and Mars three to four billion years ago.
我们讨论了30到40亿年前地球和火星上液态水存在的地质证据。
Here on Earth, moving tectonic plates are a major geological element, just crucial for the whole surface dynamic, right?
在地球上，移动的构造板块是一个主要的地质元素，对整个地表的动态变化至关重要，对吗？
After millions of years, powerful geological forces, like underwater volcanoes lift up the ocean sediments to form new land.
数百万年后，强大的地质力量，比如海底火山，会掀起海洋沉积物，形成新的陆地。
This suggests that Earth's water may have come from inside, driven to the surface to form the oceans, by geological activity.
这表明，地球上的水可能来自内部，由于地质活动，被带到表面形成海洋。
Archaeologists know that mounds such as these are the kinds of geological features that indicate the presence of ancient settlements.
考古学家知道，像这样的土堆是能表明有古代定居点存在的地质特征。
At the end of the Cretaceous, the geological record shows that these seaways retreated from the continents back into the major ocean basins.
地质记录显示，在白垩纪末期这些航道从大陆撤退，回到主要的海洋盆地。
Charles Lyell made a good estimate of the Tertiary Period from the fossil record, but his method could not be extended to earlier geological periods.
查尔斯·莱尔根据化石记录对第三纪作出了很好的估计，但他的方法不能扩展到更早的地质时期。
Certain features of these engravings lead to the conclusion that they are of great age—geological changes had clearly happened after the designs had been made.
这些雕刻的某些特征让人得出它们年代久远的结论——这些设计完成之后显然有地质变化发生。
Ever since people had begun to catalog the strata in particular outcrops, there had been the hope that these could somehow be used to calculate geological time.
"从人们开始对地表的特殊岩层进行编目和分类时起，大家就开始期望能够以某种方式利用这些岩层来计算地质年代。
As he prepared the speech, Juan kept asking himself, "How can I make this clear and meaningful to someone who knows nothing about earthquakes or geological principles?"
在准备演讲的过程中，胡安不停地问自己：“我怎么才能让一个对地震和地质原理一无所知的人明白这一点？”
The overall result has been to make entrance to professional geological journals harder for amateurs, a result that has been reinforced by the widespread introduction of refereeing.
这样做的总体结果就是业余爱好者想在专业地质学期刊上发表文章就更难了，而评审制度的广泛采用又进一步加强了这一结果。
In 1815 he published the first modern geological map, "A Map of the Strata of England and Wales with a Part of Scotland", a map so meticulously researched that it can still be used today.
1815年，他出版了第一张现代地质学地图——《英格兰、威尔士及部分苏格兰地区地层地图》，这张地质地图绘制得非常精确，直到现在仍有参考价值。
Unlike Oceanic islands that were once part of continental landmasses, islands formed by such geological processes as volcanism contain only plants and animals that could be transported there.
与曾经是大陆性陆地的一部分的海洋岛屿不同，由火山作用等地质过程形成的岛屿只包含可以被运输到那里的动植物。
Hills and mountains are often regarded as the epitome of permanence, successfully resisting the destructive forces of nature, but in fact they tend to be relatively short-lived in geological terms.
丘陵和山脉通常被认为是永恒的象征，成功抵御着自然的破坏力量，但其实它们从地质学角度讲往往是相对短暂的。
That's a baby in geological terms.
但从地质年代上来说，它还是一个婴儿。
Its estimate is based on analysis of geological surveys.
其估计值基于地质调查分析。
Austria's OMV is testing geological formations near Vienna.
奥地利的OM V公司正在测试维也纳附近的地质结构。
This geological process created complex molecules of hydrogen and carbon.
这种地质作用形成复杂的碳氢分子。
Finney also doesn't believe that the crucial geological layer can be found.
芬尼并不认为会发现关键性的地质层。
As can be seen, a variety of interesting geological formations surround them.
由此可以看出，这里分布着很多有趣的地质结构。
Turkey sits on major geological fault lines, and tremors are a near-daily occurrence.
土耳其位于主要地质断裂带上，地震几乎是每天都要发生的。
Turkey sits on major geological fault lines, and tremors are a near-daily occurrence.
土耳其位于主要地质断裂带上，地震几乎是每天都要发生的。
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