sand avalanche

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sand avalanche [′sand ‚av·ə‚lanch]

(geology)

Movement of large masses of sand down a dune face when the angle of repose is exceeded or when the dune is disturbed.

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No references found			After storms patches of dark sand are often visible on contemporary dune surfaces and have been observed in places where sand avalanches are unlikely or impossible. Geological Sciences by Michigan Academician The sound originates when sand avalanches down the lee face of a dune, explains Hunt. Sonic sands: uncovering the secret of the booming dunes by Perkins, S. / Science News One towering dune emits a loud thrumming roar as we set small sand avalanches in motion by sliding down the dune on our backsides, or driving down it in the 4x4 at an impossible angle. The sands that roar by Nevin, Tom / African Business			Sanchi Sanchi sculpture Sanchiang Plain Sancho I Sancho II Sancho III Sancho III Garcés Sancho IV Sanchursk Sancroft, William Sancti Spíritus Sancti-Spiritus Sancti-Spíritus Sanction Sanctis, Francesco de Sanctorius Sanctuary sanctum sanctum sanctorum Sanctus sanctus bell Sand sand apron sand asphalt sand auger sand avalanche Sand Bar State Park sand boil sand box Sand Bridge State Park sand castle sand cay sand clay sand cone sand control sand count Sand Creek Sand Creek Massacre Sand Creek Massacre National Historic Site sand crystal Sand Cultures sand devil sand dike sand dollar sand drain sand drift sand drip sand dune sand equivalent sand filter sand filter trenches			sanctums Sanctura Sanctus Sanctus Sanctus Sanctus bell Sanctus bell sanctus bells sanctus bells Sanctus Benedictus Sanctus Benedictus Sanctus Benedictus Sanctuses Sanctuses Sanctuses SANCU Sancy Peak Sancy Peak sand sand sand sand sand Sand and Reef Combination Anchor Sand and Sage Sports Car Club sand apron Sand art and play Sand art and play sand asphalt sand auger sand avalanche sand badger sand badger sand badger sand badger Sand bag Sand ball Sand bank Sand bank Sand banks Sand banks sand bar sand bar Sand Bar State Park Sand bass Sand bass Sand Bass Cofactor Protein Sand bath Sand bath Sand baths Sand baths Sand beach Sand beach Sand beach Sand beach Sand bed sand berry sand berry Sand birds sand blackberry Sand Blast

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