And as a result, Mexico City is trapped in a vicious geologic cycle.

结果，墨西哥城陷入了地质的恶性循环。

A geological burp may have led to the dinosaurs' domination THE dinosaurs, famously, went out with a bang.

地质的甲烷释放可能是恐龙称霸地球的原因众所周知，恐龙在地球是突然消失的。

The footprints are similar in age, shape, and geological context.

这些脚印在年代、形状和地质环境的情况都很相似。

The difference is mostly commercial, I think, more than it is geological.

区别主要是业的， 我认为，不是地质的。

One solution might be to use younger geologic spots on the moon, like lava flows, for digging up soil.

一种解决方案可能是选取球地质比较年轻的区域的土壤，如在熔岩流区域挖取土壤。

It behaves more or less like a solid, but over long periods of time, geologic periods of time, it can flow.

它的行为或多或少有点像固体，但在很长的时间周期里（地质学意义的周期），它其实是流动的。

In his hand he wielded with ease an enormous bough, a staff worthy of this shepherd of the geologic period.

他手中轻松地挥舞着一根巨大的树枝，这根手杖配得这位地质时期的牧羊人。

This once stood at the centre of the California gold rush and, thanks to a quirk of geology, it continues to yield its precious bounty over 100 years later.

这家公司曾处在加州淘金热的风口浪尖，由于地质学的怪异变迁，此地在百年之后仍然向人们提供珍贵奖赏。

Says Fortey: We know that mammals increased in size quite dramatically after the dinosaurs went-though when I say quite abruptly I of course mean it in a geological sense.

“我们知道，恐龙一走，哺乳动物的个儿戏剧性地变大了——虽然我说相当突然，但我当然是从地质学的意义说的。

While the current Big Island the island of Hawaii is of course the youngest of all the islands, having only breached above the surface of the ocean around 600,000 years ago extremely recently in a geologic sense.

当然，现在的夏威夷大岛是所有岛屿中最年轻的一个，它在大约 60 万年前才露出海面，从地质学的意义来说是非常新的岛屿。