What Moves Gravel-Size Gypsum Crystals Around the Desert? by JOANNA KLEIN


By JOANNA KLEIN

The large crystals, and perhaps life forms within, may be scattered around by a whirlwind that a geologist calls a gravel devil.

Published: April 20, 2017 at 08:00PM

from NYT Science http://ift.tt/2pLs5gx
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