In geologic time, a million years is recent history.

地质学角度看来，一百万年前属于近代历史。

Planet size matters when it comes to the internal heat needed to sustain geologic activity.

经过计算，行星需要有足够大质量内才会有足够地热而形成各种地质活动。

Yes, in theory, in geologic time, it will be renewable.

从理论，地质变化来看，它会是可再生的。

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。

Geologic processes buried and shifted the shoreline footprints to the cave's ceiling, 500 meters deep.

地质过程埋葬了这些脚印，并将脚印从海岸线转移到洞穴500米深处的顶。

Megalodon, fossils are found in the kind of geologic deposits that form pretty close to shore.

能离海岸非常近的地质沉淀物中，发现巨齿鲨的化石。

We do understand that the dominant geologic process that affected Mercury, or at least Mercury's surface is impact cratering.

我们知道，水星的地质演化中陨石撞击坑是主要的影响。

Ancient ruins and artifacts only take us back a few thousand years, geologic records only about 2 million.

古代遗迹和手工制品只能带我们回到几千年前，地质只能到约 200 万年前。

He told the Associated Press that findings suggest the asteroid strike was a " very violent" geologic process.

他告诉美联社，这一研究结果表明，此次小行星撞击是一个“非常剧烈”的地质过程。

But scientists have also found lots of soot in the geologic layers deposited immediately after the asteroid impact.

但科学家们小行星撞击后立刻沉积的地质层中发现了大量煤烟。

It's made up of individual large sections or plates that move and collide over vast stretches of geologic time.

它是由独立的大型分或是板块漫长的地质时间中移动以及碰撞组成的。

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月球地质比较年轻的区域的土壤，如熔岩流区域挖取土壤。

Ide is now doing a similar analysis on earthquakes that all happened in the same geologic setting, like subduction zones.

井出哲现正对所有同一地质环境下发生的地震进行相似性分析，比如说消减带。

Cheap fossil energy, concentrated by geologic time and pressure in seams of coal or pools of oil, changed all that.

经过地质时间和压力的凝缩，富集于煤层和油田中的廉价化石能源改变了这一切。

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，但很长的时间周期里（地质学意义的周期），它其实是流动的。

In other places, plates meet like a slow geologic car crash, crumpling up the rock and shoving it towards the sky.

其他地方，板块像缓慢的地质车祸一样相遇，把岩石揉皱，推向天空。

Ever since, Curiosity has been investigating the geologic record to understand when Mars might have been most suitable to host life.

从那以后，好奇号就一直调查地质，以弄清火星何时最宜居。

It really allows you to see these geologic fingerprints that these processes have left behind.

它让你能够清晰地看到这些地质活动留下的痕迹。

Most simply, it's a unit of geologic time.

最简单的解释，它是一个地质时间单位。

They  seem to have little geologic activity, judging by their old and dark surfaces.

从它们古老而暗沉的表面判断，这些天体似乎地质活动并不活跃。