Image: Great Sandy Desert, Australia
Tuesday, April 9, 2013 - 06:20
in Earth & Climate
(Phys.org) —In northwest Australia, the Great Sandy Desert holds great geological interest as a zone of active sand dune movement. While a variety of dune forms appear across the region, this astronaut photograph features numerous linear dunes (about 25 meters high) separated in a roughly regular fashion (0.5 to 1.5 kilometers apart).