食腐动物和细菌的攻击、化学性腐烂，以及侵蚀和其他地质作用的破坏，导致无法保存的可能性非常大。
Attack by scavengers and bacteria, chemical decay, and destruction by erosion and other geologic agencies make the odds against preservation very high.
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.
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