Hawai‘i Volcanoes 2016

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The crust of Kīlauea Iki lava lake formed large, 3 to 6 m (10 to 20 ft), polygonal plates. These plates moved across the lake in minutes to be swallowed and replaced during crustal overturning. The ones here formed during the final overturn.

All images copyright © 2016 F.W. Vollmer and may not be used without permission.