This is a piece of a living stromatolite, that I've just chopped.

这是一块活的叠层石，我刚刚把它切碎。

Modern cross-laminated timber panels perform better in fire tests than steel ones do.

现代交叉叠层木板在防火测试中比钢板性能更好。

But life was to face a crisis, a crisis that would finally end the long reign of the stromatolites and lead to the beginning of a new era in the story of life on Earth.

但生命将面临一场危机，这场危机最终束了叠层石的长期统治，并开启地球生命故事的新纪元。

And billions of years ago, these stromatolites, ancient communities of photosynthetic bacteria that are equal parts biology and geology, may have exhaled the first breaths of life-giving oxygen.

数十亿年前的这些叠层石，古老的光群落，它们在生物学和地学中是一样的部分，可能已经呼出了第一口提供生命的氧气。

And then separately, we'll take the electrocut overlay film, or ECOP as some people call it, and we'll put it through a friction-fed plotter.

然，我们会单独使用电切叠层薄膜，也有人称之为 ECOP，并将其放入摩擦式绘图仪中。

These calcareous structures — the result of what was a brand-new process, using solar radiation as a source of energy — are stromatolites, constructed by complex microbial communities, in particular cyanobacteria.

这些钙是叠层石，由复杂的微生物群落成，特别是蓝藻。这是一个全新的过程，利用太阳辐射作为能量来源。

For two billion years, stromatolites ruled our planet unchallenged.

在 20 亿年间，叠层石无可争议地统治着我们的星球。

And their fossils are often preserved as layered rock structures, called stromatolites.

它们的化石常常以分层岩石的形式保存下来，称为叠层石。

These limestone-like carbonates are known on Earth to preserve stromatolites, mounds formed by bacterial growth.

这些类似石灰岩的碳酸盐在地球上以保存由生长形成的叠层石而着称。

From this time in history we still have Stromatolites, sedimentary rocks built by microorganisms.

从这一历史时期，我们仍然有叠层石，这是一种由微生物建造的沉积岩。

100 million years isn’t much time for simple life to get as complex as the bacteria that would have formed these mats – which means that life might have begun before the asteroid-pelting ended.

一亿年对于简单生命来说并不足以进化到像形成这些叠层石的那样复杂——这意味着生命可能在小行星撞击束之前就已经开始了。

Everywhere, even a short hike from my apartment in Boulder, Colorado, brings me face-to-face with this stromatolite rock from the end of the world, left behind by foul microbial mats.

无论身处何地， 即便是在科罗拉多州博尔德市， 从我的公寓出发进行一次短暂的徒步旅行，我都会邂逅这种来自世界尽头的叠层石，它们是由恶臭的微生物垫遗留下来的。

And so these are rock taken, this is from Glacier National Park, and so stromatolites formed really ancient in our life and they're essentially bacterial gnats.

这些岩石样本来自冰川国家公园，其中形成的叠层石极为古老， 它们基本上是由成的微生物席。

The kids were playing and I was getting some things laminated -- because teachers are forever laminating stuff -- in the teacher's room next door.

孩子们在玩，我正在隔壁的老师房间里叠一些东西——因为老师们总是在叠层东西。

Now, what probably looks like a bunch of wrinkly old rocks are actually stromatolites.

现在，看起来像一堆皱巴巴的老岩石的东西实际上是叠层石。

Some of the oldest known evidence of life on Earth are fossilised biofilms known as stromatolites.

一些已知地球生命最古老的证据是被称为层状叠层石的化石生物膜。

A group of stromatolites in Western Australia are thought to be 3.5bn years old.

澳大利亚西部的一组叠层石被认为有35亿年的历史。

Well the first fossil evidence are what are called stromatolites.

那么，最早的化石证据就是所谓的叠层石。

The shape and texture of certain layers in the rocks, plus their chemical composition, are clues that there are stromatolites made by microbes inside the rocks.

岩石中某些层次的形状和纹理，加上它们的化学成分， 都是线索， 表明岩石内部存在由微生物形成的叠层石。

These are some stromatolites that are forming today in Australia.

这些是现今在澳大利亚形成的叠层石。