This link to water is why alien sedimentary rocks are rare.

种与水的联系就外沉积岩罕见的原因。

The layers of mud, sand and ash turned into hard sedimentary rocks.

一层层的泥、沙和灰变成了坚硬的沉积岩。

Well, sedimentary rocks that provide clear evidence of glaciers in the cryogenian period.

沉积岩提供了低温时期冰川存的清晰证据。

But a new research study looked at the sedimentary rocks more closely.

但一项新的研究更仔细地观察了沉积岩。

In this huge bowl, sedimentary rocks gathered, dominated by conglomerates.

巨大的盆地中沉积了以砂砾岩为主的沉积岩群。

Mars also boasts sedimentary rocks—a dazzling variety of them, left behind from its warmer, wetter past.

上也有沉积岩——上的沉积岩种类繁多，令人眼花缭乱，些沉积岩都更温暖、更潮湿的过去遗留下来的。

The sedimentary rocks of the Badlands contain one of the world’s largest and most complete collection of mammal fossils.

荒地的沉积岩中含有世界上最大、最完整的哺乳动物化石。

A comparative analysis of ancient sedimentary rock formations revealed that the mass disappearance of prehistoric fauna was caused by multiple volcanic eruptions.

对古代沉积岩的对比分析表明，大量史前动物的消失由多次山爆发造成的。

The terraces are made of travertine, a sedimentary rock deposited by water with a very high mineral content from the hot springs.

梯田由钙华构成，一种由温泉中矿物质含量很高的水沉积而成的沉积岩。

These were not  sedimentary rocks, as had first been anticipated.

正如最初预期的那样，些并不沉积岩。

The process of getting natural gas and oil out of sedimentary rock called shale.

从称为页岩的沉积岩中提取天然气和石油的过程。

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

从一历史时期，我们仍然有叠层石，一种由微生物建造的沉积岩。

And over thousands of years, those layers of sediment will become sedimentary rock.

而且数千年的时间里，那些沉积层将会变成沉积岩。

If you find sedimentary rocks, there's a chance there could be some fossils in there.

如果你发现了沉积岩，里面可能有一些化石。

She believes icebergs should contain cave systems similar to those found in sedimentary rock.

她相信冰山应含有类似沉积岩中发现的洞穴系统。

And the reason for this is because fossils can only form in sedimentary rocks.

其原因于，化石只能形成于沉积岩之中。

This bone was buried in sedimentary rock, which lies in layers under the ground.

块骨头被埋沉积岩中，沉积岩层层叠叠地位于地下。

The red planet's sedimentary rocks mostly formed when water helped glue together sediments that accumulated in ancient rivers, lakes, and sand dunes.

颗红色球上的沉积岩大多由水将古代河流、湖泊和沙丘中积累的沉积物粘合一起而形成的。

Above those were hard sedimentary rocks which he called Secondary.

上面坚硬的沉积岩， 他称之为次生岩。

The term fossil fuel refers to the trapped remains of plants and animals in sedimentary rock.

化石燃料一词指的沉积岩中被困的动植物残骸。