An epoch is a much smaller geological time period.

epoch指是一个更小质时期。

It was the Tyrannosaurus-Rex before there was a Tyrannosaurus-Rex, both in terms of geological time and its discovery.

它是霸王龙之前霸王龙，从质时间和被发现时间上都是如此。

Historically, sharks and humans haven't been around each other a lot, especially when you think in geological time scales.

鲨鱼一直和不是经常在一起，特别是当你从质时间维度方面来考虑。

Balanced by natural selection, animal and plant populations have fluctuated wildly over geological time.

在自然选择平衡下，动植物种群在质时期内发生了剧烈波动。

Extinction is a natural process, but it generally happens gradually over geological time, not in rapid succession, as is happening today.

灭绝是一个自然过程，但通常是随着质时间逐渐发生，而不是像今天这样快速连续发生。

That is because geological time is not like human time.

这是因为质时间与时间不同。

Because continental shelfs are gently sloping, this has led to dramatic changes in the land area of continents throughout geological time.

由于大陆架坡度平缓，导致整个质时期大陆面积发生剧烈变化。

Across geological time, a single event can have cascading consequences that influence the  evolution of species and ecosystems around the world.

纵观质历史，单一事件可能会产生连锁后果，影响世界各物种和生态系化。

Mastodons and elephants used to live here no great geological time ago, as shown by their bones, often discovered by miners in washing gold-gravel.

很久以前，乳齿象和大象就曾在这里生活过，从它们骨头可以看出，矿工们经常在清洗金砾石时发现它们。

Much to his surprise Sir Charles told him that certain forms, like Terebratula, appeared to be identical from the beginning to the end of geological time.

令他大吃一惊是，查尔斯爵士告诉他，某些形式，如特雷布拉图拉，从质时代开始到结束似乎都是相同。

The AWG will present a dossier of evidence hoping to convince the voting bodies that the Anthropocene does represent a planetary change that requires a new geological time period.

AWG 将提交一份证据档案，希望能说服投票机构，世确实代表了一个需要一个新质时期行星变化。

The Anthropocene Working Group was set up in 2009 and in 2016 concluded that the human-caused changes to Earth were so great that a new geological time unit was justified.

世工作组（AWG）成立于2009年，于2016年得出结论，认为对球造成变化如此之大，以至于有必要建立一个新质时间单位。

Nowadays, and speaking very generally, geological time is divided first into four great chunks known as eras, Precambrian, Paleozoic, from the Greek meaning old life, Mesozoic, middle life, and Cenozoic, recent life.

现在, 一般来说, 质时间首先分为四个大块, 称为时代, 前寒武纪, 古生代, 来自希腊语, 意思是旧生活, 中生代, 中生代和新生代, 最近生活。

Mega tsunamis generated from a volcanic collapse like this appear to be common on a geological time scale as there is evidence to show that it's happened dozens of times in the Atlantic alone over the past million years.

在质时间尺度上，像这样火山崩塌引发巨型海啸似乎很常见，因为有证据表明，在过去百万年里，仅在大西洋就发生了几十次。

Well for me, as a sculptor, the acceptance of the material as a means of conveying the relationship between human-lived biological time and in a way the eons of geological time, is an essential condition of the waiting quality of sculpture.

身为雕塑家，我认为原料材质反映了寿命生物时间与永恒质时间之间关系，是雕像能够长存基本条件。