" A problem I've been advertising as an isotopic crisis."

“我一直在宣传的一个问题是同位素危机。”

So if someone moves from one place to another, bones synthesized after that move will also reflect the new isotopic signatures of the surrounding environment.

所以如果有人从一个地方 迁移到另一个地方，在迁移后合成的骨骼会同样反映出有关 周围环境的新的同位素标志。

Its chemistry, pristine because of the Wilcocks' swift action, showed that the water in it nevertheless had the same isotopic composition as water on Earth.

由于威尔科克斯的迅速行动，它的化学成分是原始的，表明其中的水与地球上的水具有相同的同位素组成。

Ask a pair of geochemists how something like this works, and they will start talking about isotopic abundances and ionization levels with an enthusiasm that is more endearing than fathomable.

要是你问两位地球化学家这工作是怎么进行的，他们会滔滔不绝地谈到丰富的同位素、离子化程度，等等，这些听上去很可爱，但不容易搞明白。

Problem is, as scientists have taken more and more precise isotopic measurements of the Moon they've found that it's nearly identical in composition to the Earth—not some other object.

问题是，随着科学家们对月球进行越来越精确的同位素测量，他们发现月球的成分几乎与地球相同，而不是其他物体。

Now, he says, a new theory in the journal Nature Geoscience may at least point to a way out of that isotopic crisis of the moon's chemical isotopes so closely resembling Earth's.

现在， 他说，《自然地球科学》杂志上的一项新理论可能至少指出了解决月球化学同位素与地球非常相似的同位素危机的方法。

This, by studying the isotopic composition of ancient silver coins, has tried to draw conclusions about where the metal in a coin was mined, and thus about patterns of trade.

这通过研究古代银币的同位素组成，试图得出关于硬币中的金属是在哪里开采的结论，从而得出关于贸易模式的结论。

So to determine how much of the stuff was truly interstellar—from beyond our solar system—the researchers used other isotopic clues to screen out quantities of iron-60 produced by nuclear reactions and cosmic rays.

因此，为了确定有多少物质是真正的星际物质——来自我们的太阳系之外——研究人员使用其他同位素线索来筛选核反应和宇宙射线产生的铁 60 的数量。