The Himalayas are the crowning achievement of the
Indo-Australian plate. India in the Oligocene crashed head on into Tibet, hit
so hard that it not only folded and buckled the plate boundaries but also
plowed into the newly created Tibetan plateau and drove the Himalayas five and
a half miles into the sky. The mountains are in some trouble. India has not
stopped pushing them, and they are still going up. Their height and volume are
already so great they are beginning to melt in their own self-generated radioactive
heat. When the climbers in 1953 planted their flags on the highest mountain,
they set them in snow over the skeletons of creatures that had lived in a warm
clear ocean that India, moving north, blanked out. Possibly as much as 20,000
feet below the sea floor, the skeletal remains had turned into rock. This one
fact is a treatise in itself on the movements of the surface of the earth.
If by some fiat, I had to restrict all this writing to one sentence; this is the one I would choose: the summit of Mount Everest is marine limestone.
John McPhee
If by some fiat, I had to restrict all this writing to one sentence; this is the one I would choose: the summit of Mount Everest is marine limestone.
John McPhee
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