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

在这个巨大的盆地中沉了砂砾为主的沉群。

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

这与水的联系就是外星沉罕见的原因。

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。

On the side of that crater the scientists saw straight away the distinctive strata of sedimentary rock.

在陨石坑一侧，科学家直接看到独特的沉地层。

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

荒地的沉中含有世界上大、完整的哺乳动物化石。

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

火星上也有沉——火星上的沉类繁多，令人眼花缭乱，这些沉都是火星在更温暖、更潮湿的过去遗留下来的。

Why was the sedimentary rock so cheap?

为什么沉这么便宜?

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

正如初预期的那样，这些并不是沉。

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

从称为页的沉中提取天然气和石油的过程。

Above those were hard sedimentary rocks which he called Secondary.

上面是坚硬的沉， 他称之为次生。

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，是一由温泉中矿物质含量很高的水沉而成的沉。

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

几千年后，这些沉层将变成沉。

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

对古代沉的对比分析表明，大量史前动物的消失是由多次火山爆发造成的。

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

这块骨头被埋在沉中，沉层层叠叠地位于地下。

Sedimentary rocks take many forms, sand stones, mud stones, shales, iron stones, you name it.

沉有多形式，砂、泥、页、铁矿石，应有尽有。

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

化石燃料一词指的是沉中被困的动植物残骸。

Different kinds of sediments characterize different sedimentary rock types.

不同类的沉物表征不同的沉类型。

And if there's sedimentary rocks, the holes could signal that they were shaped by a fluid.

如果有沉，这些洞能表明它是由流体形成的。

Like igneous rocks could skip being sedimentary rocks and go directly to being a metamorphic rock.

就像火成跳过 沉，直接变成变质。

The next awkward fact was the existence of layers of muddy sedimentary rock, interspersed in the sandstone.

下一个反面事实则是泥沙沉层的存在，它散布在沙中。