America in Transition Pages

Monday, March 28, 2016

Heating and cooling of Yosemite's cliffs can cause rocks to fall

The domes and arches etched into Yosemite's famed granite cliffs may seem frozen in time, but in reality they're constantly moving.

The dramatic rock formations were formed as layers of rock peeled away from the mountainside, like an onion. The flakes remain attached at a few points but are completely...



from L.A. Times - Science http://ift.tt/1RFsS86
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