roaring sand

roaring sand

[′rȯr·iŋ ′sand]
(geology)
A sounding sand, found on a desert dune, that sets up a low roaring sound that sometimes can be heard for a distance of 1200 feet (400 meters).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The sand dunes in the Witsand Nature Reserve, near Kalahari, are notorious for their roaring sands, which you often hear rumbling in the afternoon heat.