A’a Lava

by Fraser Cain April 22, 2009

Want to stay on top of all the space news? Follow @universetoday on Twitter There are several different kinds of lava, depending on the chemical composition and temperature of the molten rock that erupts from a volcano. The smooth variety is called pahoehoe, and the rougher variety is known as a’a (pronounced ah-ah). A’a is […]

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