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

在这个巨大的盆地中沉积以砂砾岩为主的沉积岩群。

It is on this fan that is in Jezero Crater, and we've now climbed up on top of this fan and are exploring the sedimentary rocks on the top surface of the fan.

它在耶泽罗陨石坑的扇形上，我们现在爬上这个扇形的顶部，正在探索其上的沉积岩。

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是由多次火山爆发造成的。

Accurately, the most well-known National Park in America, the Grand Canyon sees nearly five million visitors every year, taking the breathtaking colors of the sedimentary rocks.

地说，大峡谷是美国最知名的国家公园，每年有近 500 万游客来此欣赏沉积岩令人惊叹的色彩。

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

一层层的泥、沙和灰变成硬的沉积岩。

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沉积岩。

Hundreds of millions of years from now, alien geologists from outer space may be surprised to find sedimentary rocks full of tiny carbon-based particles that were once part of rubber tires or plastic bags.

数亿年后，来自外太空的外星地质学家可能会惊讶地发现沉积岩中充小的碳基颗粒，这些颗粒曾经是橡胶轮胎或塑料袋的一部分。

And we can go out in the modern world to look at a stream valley versus a desert, versus open plains, and each of them has a different pattern of sediment being produced and therefore different types of sedimentary rocks or structures.

我们可以去现代世界观察河流峡谷对比沙漠，对比开阔平原，它们每一种都会产生不同类型的沉积物因此会有不同的沉积岩或沉积结构。

See, coal is a form of organic carbon, but it was made mostly out of ancient plants, in layers of sedimentary rock closer to the Earth's surface.

煤是一种有机碳，但煤大多由古代的植物在更接近地表的沉积岩层中形成的。

He said sedimentary rocks have long been studied on Earth to learn what conditions were like on our planet millions, or even billions of years ago.

他说，人们长期以来一直在研究地球上的沉积岩，以解数百万甚至是数十亿年前地球的状况。

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，是一种由温泉中矿物质含量很高的水沉积而成的沉积岩。

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

这颗红色星球上的沉积岩大多是由水将古代河流、湖泊和沙丘中积累的沉积物粘合在一起而形成的。

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。

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

沉积岩提供低温时期冰川存在的清晰证据。

" Now we have the technology to extend this methodology to another terrestrial planet, Mars, which hosts an ancient sedimentary rock record which extends even further back in time than our own, " McMahon said in a statement.

" 现在我们拥有将这种方法推广到另一个类地星—火星的技术，火星上保存着一份古老的沉积岩记录，其时间甚至比我们地球的记录还要久远。"

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

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

Sedimentary rocks like sandstones form when preexisting rocks break down into bits that pile up and stick together to form a new rock.

像砂岩这样的沉积岩是由先前存在的岩石分解成碎片堆积在一起形成新的岩石形成的。

Certain asteroids, like Ryugu and Bennu, are rubble piles, essentially a strange space conglomerate—a type of sedimentary rock—where boulders and particulates are held gravitationally, says planetary scientist Bethany Ehlmann of Caltech.

加州理工学院的星科学家贝瑟尼·埃尔曼说，某些小星，比如龙宫和贝努，是碎石堆，本质上是一种奇特的太空集合体——一种沉积岩——巨石和粒在重力作用下聚集在一起。

Still, says Siebach, " because of granite, actually, the sedimentary rocks on Earth that we are most accustomed to are still unique to Earth—across the board."

不过，西巴赫说，“实际上，由于花岗岩的存在，我们最熟悉的地球上的沉积岩仍然是地球上独一无二的——从整体上看。”

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

这种与水的联系就是外星沉积岩罕见的原因。