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

在这个巨大盆地中积了以砂砾岩为主积岩群。

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.

它在耶泽罗陨石坑扇形，我们现在爬了这个扇形顶部，正在探索其积岩。

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

对古代积岩对比分析表明，大量史前动物消失是由多次火山爆发造成。

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.

准确地说，大峡谷是美国最知名国家公园，每年有近 500 万游客来此欣赏积岩令人惊叹色彩。

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

一层层泥、沙和灰变成了硬积岩。

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

但一项新研究更仔细地观了积岩。

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，来自外太空外星地质学家可能会惊讶地发现积岩中充满了微小碳基颗粒，这些颗粒曾经是橡胶轮胎或塑料袋一部分。

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积物因此会有不同积岩或积结构。

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，但煤大多由古代植物在更接近地表积岩层中形成。

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积岩，以了解数百万甚至是数十亿年前地球状况。

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水积而成积岩。

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

这颗红色星球积岩大多是由水将古代、湖泊和沙丘中积累积物粘合在一起而形成。

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

荒地积岩中含有世界最大、最完整哺乳动物化石。

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

积岩提供了低温时期冰川存在清晰证据。

" 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.

" 现在我们拥有了将这种方法推广到另一个类地行星—火星技术，火星保存着一份古老积岩记录，其时间甚至比我们地球记录还要久远。"

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

火星也有积岩——火星积岩种类繁多，令人眼花缭乱，这些积岩都是火星在更温暖、更潮湿过去遗留下来。

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

像砂岩这样积岩是由先前存在岩石分解成碎片堆积在一起形成新岩石形成。

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.

加州理工学院行星科学家贝瑟尼·埃尔曼说，某些小行星，比如龙宫和贝努，是碎石堆，本质是一种奇特太空集合体——一种积岩——巨石和微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，由于花岗岩存在，我们最熟悉地球积岩仍然是地球独一无二——从整体看。”

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

这种与水联系就是外星积岩罕见原因。