Glossary of landform and geologic terms. 2013.
Dune — For other uses, see Dune (disambiguation). Erg Chebbi, Morocco … Wikipedia
dune — A low mound, ridge, bank or hill of loose, windblown, subaerially deposited granular material (generally sand), either barren and capable of movement from place to place, or covered and stabilized with vegetation, but retaining its… … Glossary of landform and geologic terms
longitudinal dune — A long, narrow sand dune, usually symmetrical in cross profile, oriented parallel to the prevailing wind direction; it is wider and steeper on the windward side but tapers to a point on the lee side. It commonly forms behind an obstacle in an… … Glossary of landform and geologic terms
sand dune — Hill, mound, or ridge of windblown sand or other loose material such as clay particles. Dunes are commonly associated with desert regions and seacoasts, and there are large areas of dunes in nonglacial parts of Antarctica. * * * Introduction any … Universalium
seif dune — A large, sharp crested, elongated, longitudinal (linear) dune or chain of sand dunes, oriented parallel, rather than transverse (perpendicular), to the prevailing wind. If unmodified, the crest, in profile, commonly consists of a succession of … Glossary of landform and geologic terms
Erg (landform) — For other uses, see Erg (disambiguation). Issaouane Erg, Algeria. (31°11 … Wikipedia
desert — I (New American Roget s College Thesaurus) I n. waste, wilderness, solitude. See uselessness, seclusion. II v. leave, forsake, abandon; secede, run away; leave in the lurch, be faithless, ditch (sl.). See avoidance, relinquishment. n. reward, due … English dictionary for students
Olympia Undae — Mars Global Digital Dune Database MC 1 map showing the North Polar Sand Sea. Olympia Undae is the area with dune coverage between 120° to 240°E longitude … Wikipedia
Arabian Desert — 1. a desert in Egypt between the Nile valley and the Red Sea. ab. 80,000 sq. mi. (207,000 sq. km). 2. the desert region in the N part of the Arabian peninsula. * * * Desert region, Arabian Peninsula. It covers about 900,000 sq mi (2,330,000 sq… … Universalium
Dyuny railway station — Primorskaya Railway, Russia Primorsky Rail Terminal Sestroretsk Legend … Wikipedia
