3 ms·
My guess is that that explanation doesn't provide even a good first approximation to the abundances of element in the Earth's crust. https://en.wikipedia.org/w
by jessriedel 9y ago
My guess is that that explanation doesn't provide even a good first approximation to the abundances of element in the Earth's crust.
https://en.wikipedia.org/wiki/Abundance_of_elements_in_Earth%27s_crust https://en.wikipedia.org/wiki/Abundance_of_elements_in_Earth...
I think there's just a lot of chemistry and geology going on.
- taneq 9y agoI think neither chemistry nor geology can alter the relative abundance of elements.
- jessriedel 9y agoYou'd be wrong. First, light gases escape from the Earth's gravity, which is why there's no molecular hydrogen or almost any helium whatsoever. Second, the crust is not the same thing as the Earth, and the distribution of elements by depth depends a lot on the density and other properties of the material elements are chemically bonded into.
- taneq 9y agoHm, those are actually pretty good points. I stand corrected.