Geography of acoustic (musical) sands
Mots-clés :
Acoustics, Geographical regions, Meteorology, Sand, Singing sandsRésumé
Geographically the distribution of 'musical' sands shows the phenomenon on all continents. Sites are associated with both sere desert environments and lacustrine, riverine and oceanic shorelines. Musical sands are formed by: (1) a wet cycle to 'wash' or purify the sand; (2) a dry cycle, when combined with a wet cycle create conditions under which the 'coating' (silica gel) on individual sand grains is chemically produced; (3) a 'windy' location to dry and polish the sand grains, and further, allowing a 'stacked-up' unstable position, allowing the generation of acoustic resonance upon slope failure or slip.
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