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Overnight Video: Ibiza Lights II

86
Nyet4/18/2012 4:23:53 am PDT

re: #85 ggt

ʻAʻā

ʻAʻā (also spelled aa, aʻa, ʻaʻa, and a-aa; /ˈɑː.ɑː/ or /ˈɑːʔɑː/, from Hawaiian [ʔəˈʔaː][6] meaning “stony rough lava”, but also to “burn” or “blaze”) is one of three basic types of flow lava. ʻAʻā is basaltic lava characterized by a rough or rubbly surface composed of broken lava blocks called clinker. The Hawaiian word was introduced as a technical term in geology by Clarence Dutton.[7]