How do seams/veins of metal form in the ground? Magma looks so homogenous – wouldn’t all the metallic components get mixed in with everything else when it cools?
In: 12
Magma actually isn’t very homogenous. You’ve got a bunch of semi-solids of different densities in there, they gradually separate themselves out. They also have different cooling points, which means as magma gradually cools, different minerals solidify first and precipitate to the bottom or to the walls of the vein, with the minerals that cool later being deposited further up or in the centre.
Latest Answers