Many scientists provided valuable research and input into the creation of the geologic time scale.

许多科学家为地质时间尺度的建立提供了有价值的研究和投入。

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As geologists, we examine layers of sediment on the Earth' s surface to approximate the dates of past geologic time periods.

作为地质学家，我们研究地球表面的沉积层以估算过去地质时期的年代。

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The drift of the last glaciation was deposited during one of the most recent epochs of geologic time, the Pleistocene, which lasted from 1.8 million to 10,000 years ago.

最后一次冰川作用的漂浮物沉积在最近的其中一个地质时期——更新世，这段时期从180万年前持续到1万年前。

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Neither is significant compared to the known global variations in temperature over geologic time, though any cooling still contradicts the AGW hypothesis.

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To get your head around geologic time, repeat this mantra: Stegosaurus was as far in the past for Tyrannosaurus Rex as T.

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Any interchange between the two, if it were possible, would have happened already in geologic time, measured in tens of millions of years, not in recent history.

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