地质侵蚀 geologic erosion
- 由于侵蚀和海底的下沉,经过地质时代的变迁,中心的火山已经不见踪影,而只留下珊瑚礁环绕或覆盖在沉入海底的火山岛上。
Over geologic time the central volcano becomes extinct, followed by erosion and subsidence beneath the sea surface, leaving the coral reefs as a ring around (or cap on) the submerged island remnant. - 可是大海迅速地侵蚀了沿海地区的永久冻土,这是一种地质过程。 在这样寒冷的沿海地区,它可能会对人类的生活产生重大的影响。
The sea rapidly erodes this permafrost in coastal zones, a geological process that could have major implications for humans living in such chilly coastal areas. - 希望此次最新的发现能帮助弄清此处的地质条件,或者是怎样的一系列事件致使此处能出土这般未受侵蚀的化石遗骸。
It's hoped that this latest find may help to clarify what geological conditions, or series of events, help to produce such pristine fossils.
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