Quote:
Originally Posted by ThaVirus
IIRC, it's a prettt significant amount.
When does it stop?
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It's about 2.4" per year.
It stops when the Indian plate runs out of gas maybe in 100 million years.
The Appalachians used to be higher than the Himalayas. Now they're worn-down nubs of their former selves. They're one of the oldest mountain rangers on earth. The oldest rocks found in them are some 480 million years old.