We're just now starting to get this. Meanwhile, the controversy continues. Everybody knows the answer. Somebody else says, 'Of course the plates are driven from below. So everybody's sure, but of different things, very different concepts.
Truth is often a compromise.
Some of these cataclysmic events, like the one originally assumed to have wiped out the dinosaurs, occurred at about the same time as tremendous volcanic eruptions called flood basalt eruptions that produced massive flows of lava exiting the earth's crust.