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| Pahoehoe toes -- Budding pahoehoe toes breaking out along the edges of a flow front at Kilauea Volcano, Hawaii. These small protuberances are common along the edges and flow fronts of pahoehoe flows advancing across flat or gentle slopes. The pahoehoe toes will grow and merge together to form a broader flow front which inflates resulting in the breakout of additional pahoehoe toes, and the continual advance of the lava. Courtesy of J.D. Griggs, USGS. |