The team said the crystals contained a mineral called zircon.

研究小组表示，这些晶体中含有一种名为的矿物质。

They compared that core with another from Arizona, embedded with zircons.

他们将这块岩心与亚利桑那州一块嵌有的岩心进行了对比。

This favours impact formation, as zircons transported by mantle plumes would have more profound origins.

这有利于撞击的形成，因为地幔热柱搬运的具有更深的起源。

And that's where a resilient little mineral called zircon comes in.

这就有弹性的源。

Heck noted that zircon is a very strong mineral that can " survive the breakdown of rocks during weathering."

赫克指出，一种非常坚固的矿物质，可以“在岩风化过程中幸存下”。

In that study, researchers examined how many atoms of uranium and lead were contained in the zircon crystals.

在那项研究中，研究人员检查了晶体中含有多铅原子。

And remember, zircons are also used in radiometric dating.

请记住，也用于辐射 测年。

But zircon also has two things quartz doesn't: zirconium, which gives it its name, and small traces of radioactive uranium.

，这它名字的由，还有量放射性的痕迹。

The zircon is believed to have formed when the lunar surface cooled after being in a melting state after the crash.

据信，在撞击后月球表面熔化后冷却时形成的。

Analyses of their constituent zircons could well provide valuable supporting evidence that Earth's continents owe their existence to bodies from outer space.

对其构成的的分析很好地提供有价值的佐证，证明地球大陆的存在应归功于自外太空的天体。

Zircons whose ratio of oxygen-18 to oxygen-16 is 0.5% higher than found in seawater, for example, would have originated far below Earth's surface.

例如，在海水中发现的氧-18氧-16的比率比高0.5%的可能起源于地球表面以下很远的地方。

There is too much money in palm oil, as well as timber, coal, gold, zircon and the forest's other vegetable and mineral riches.

棕榈油有很大的价值, 这森林中的木材、煤炭、黄金、、其他蔬菜丰富的矿产也如此。

In this case, Ramezani was dating tiny zircon crystals embedded in a fossil bed in Patagonia, near the southern tip of South America.

在本研究中，Ramezani 一直在北美南段附近的巴塔哥尼亚，测定那里化床中镶嵌的微型英的年代。

In this case, Ramezani was dating tiny zircon crystals, in fact, in a fossil bed in Patagonia, near the southern tip of South America.

在这个案例中，拉米扎尼在靠近南美洲南端的巴塔哥尼亚的化层中测定微小的晶体的年代。

But the authors will also need to explain why zircons previously found at other, even older, sites do not display the same telltale signature of impact.

但作者还需要解释，为什么之前在其他更古老的地点发现的没有显示出相同的撞击迹象。

That speed showed that the samples were made of zircon, and zircon is one of the oldest known solids, meaning the moon must be the same age, 4.46 billion years old.

这个速度表明样本由构成的，而已知最古老的固体之一，这意味着月球的年龄也一定44.6亿岁。

So despite earth's best efforts to hide its age from us, uranium-lead dating of little bits of zircon tells us our planet formed at least 4.4 billion years ago.

所以尽管地球尽最大的力对我们掩藏它的年龄，量铅的结合在内，告诉我们，我们的星球至在 44 亿年前形成。这儿。

There's also other evidence from meteorites that suggests the earth is even older, but at bare minimum, this zircon lets us say with confidence that the earth is literally older

陨还有其他证据表明地球更古老， 但至，这颗让我们自信地说， 地球确实更老了。

And one of the oldest terrestrial minerals ever found, quite possibly the oldest piece of the earth we know of, happens to be a very lead-filled grain of zircon found embedded in sandstone in Western Australia.

有史以发现的最古老的陆地矿物之一，很可能我们所知道的地球上最古老的一块，恰好嵌入澳大利亚西部砂岩中的非常铅含量的颗粒。

Which is weird, because lead isn't similar to zirconium, and so would never have ended up in a zircon crystal on its own, so the more lead you find in a zircon crystal, the older you know it is.

这就奇怪了，因为铅与不相似，所以绝不会单独出现在晶体中，所以在晶体中发现的铅越多，它的年代越久远。