Yeah subduction is the missing key that took a while for us to understand. Ocean crust is young.
In fact most earthly rock is relatively young.
Plate tectonics was such a clever idea. So obvious now, I mean just look at a map of the world of course continents were once one, you can see where they join, like a jigsaw puzzle.
It astonished early western explorers finding seashells on mountains!
In fact most earthly rock is relatively young.
Plate tectonics was such a clever idea. So obvious now, I mean just look at a map of the world of course continents were once one, you can see where they join, like a jigsaw puzzle.
It astonished early western explorers finding seashells on mountains!