Where did the vast majority of chemical elements found on earth come from

Posted on 04.07.2018 by Demetrice
This took with it the vast majority of the planets precious metals such as gold and platinum. In general, water is rare within the snow line. This took with it the vast majority of the planet's precious metals -- such as gold and platinum. Watch the Did-You-Know slideshow.

Everyone on Earth can see it, but we only ever see one side of it.

Where did the vast majority of chemical elements found on earth come from
The removal of gold to the core should leave the outer portion of Earth bereft of bling. If Theia existed, it has left no trace on the Moon. However, precious metals are tens to thousands of times more abundant in Earths silicate mantle than anticipated. Mars only has a thin veneer of ice in its polar regions. How did the Earth end up with such a whopping neighbour. In the case of the lunar rocks, some of the isotopes should have come from Earth and some from Theia, so the isotopic composition should be somewhere between the two. How many different supernovas did all the elements we currently enjoy on Earth now come from.
Displaying, or flying, the American flag on a wall requires considerably more effort than from a flagpole. Why does Earth have so much water relative to the other inner planets. It has previously been argued that this serendipitous over-abundance results from a cataclysmic meteorite shower that hit Earth after the core formed. Isotopes provide robust fingerprints of the origin of material and the addition of meteorites to Earth would leave a diagnostic mark on its W isotope composition.