eli5 why metalls are located in veins and not equally distributed through the whole mass of the planet.

Question

eli5 why metalls are located in veins and not equally distributed through the whole mass of the planet.

In: 8

Answer 1

Depending on the rock or metal, they melt at different temperature so veins form when the liquid form permeates the cracks. Also, if both are in liquid form you also have to consider density. Less dense material will layer on top. Then on top of that, you have tectonic plates and volcanoes that will move material