The answer lies in a slightly obscure but ingenious field known as isotope geochemistry.

答案在于同位素地球化学，这是个不大知名而又十分奇妙的领域。

It covered everything from the geochemistry to plate tectonics, to microscopic images of its rocks.

它涵盖了从地球化学到板块构造，再到岩石的微观图像的所有。

I need to talk to somebody who knows more about geochemistry than I do I think for that one.

我需要与一位比我想象的更了地球化学的人交谈。

I tend to think of it, initially, the origin  of life is a transition from geochemistry to biochemistry, which it must have been.

我倾向于这样：生命的起源是从地球化学向生物化学的转变，这必然是事实。

It is the world's deepest working submersible, greatly contributing to the study of marine geology, geophysics, geochemistry, the marine environment, and marine biology.

这是全球工作深度最深的载人潜水器，对海洋地质、地球物、地球化学、海洋环境、海洋生物等研究作出了巨大贡献。

So the Clark Fork geochemistry explains why acid rain isn't as devastating here as it is in, say, the Adirondack Mountains of New York where there is no limestone.

所以克拉克福克的地球化学释了为什么这里的酸雨不像纽约阿迪朗达克山脉那样具有毁灭性，因为那里没有石灰石。

Geology is the study of the Earth's physical structure and substance, while geochemistry is a branch of chemistry that focuses on the chemical composition of reactions in rocks and minerals in the Earth's crust.

地质学是对地球物结构和物质的研究，而地球化学是化学的一个分支，侧重于地壳中岩石和矿物反应的化学成分。