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ElHexo, 1 year ago I think they were as tall as the Alps are now - because the crust essentially “floats” on the mantle as mountains are eroded (and glaciers slide off), the land gradually rises
I think they were as tall as the Alps are now - because the crust essentially “floats” on the mantle as mountains are eroded (and glaciers slide off), the land gradually rises
Roots of Mother Appalachia (mander.xyz)
cntraveler.com/…/appalachian-mountains-may-have-o…...