Hawaii Volcanoes National Park
View of the active flow area on the flank of Kilauea. Note how the lava drains from below a solidified crust. Radiating heat into the air above the hot flow creates a distorted view of flows in the distance. The dark area in the upper center is a small a'a flow descending amongst the pa'hoe'hoe flows. A'a forms when a lava flow has cooled enough that a thick crust of lava blocks congeal, break apart, and may mix and move with the still-partly-molten flow.
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The URL is: https://gotbooks.miracosta.edu/gonp/havo/html/havo0235.htm
Last modified: 9/9/2010