In geologic time, a million years is recent history.

地学角度看来，一百万年前属于近代历史。

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

从理论上讲，地变化上来看，它会是可再生的。

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

经过计算，行星需要有足够大量内才会有足够地热而形成各种地活动。

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

地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。

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物中，发现巨齿鲨的化石。

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

结果，墨西哥城陷入了地上的恶性循环。

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，地记录也只能到约 200 万年前。

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

但科学家们也小行星撞击后立刻积的地层中发现了大量煤烟。

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

我们知道，水星的地演化中陨石撞击坑是主要的影响。

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上地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。

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

最简单地说，它是一个地时间单位。

In geologic time. Now, there are some real debunkers of this.

地年代。现，有一些真正的揭穿者。

One of the most fundamental issues was geologic.

最基本的问题之一是地问题。

If we use the geologic record, we can reconstruct where it went in the past.

如果我们使用地记录，我们可以重建它过去的去向。

In the geologic record, buried organic carbon with no oxygen shows up as black shales.

地记录中，没有氧气的掩埋有机碳表现为黑色页岩。

First, let’s talk about the history of geologic time itself.

首先，让我们谈谈地 时间本身的历史。

Galilee is a distinct region with geologic features forming boundaries with its neighbors.

加利利是一个独特的地区， 其地特征与邻国形成了边界。