G. BRAD LEWIS / SCIENCE PHOTO LIBRARY G. BRAD LEWIS / SCIENCE PHOTO LIBRARY
Cooled pahoehoe lava. This thick lava with a ropey texture can flow at speeds of up to 50 kilometres per hour. Pahoehoe is a basaltic lava with a low melting point. The crust insulates the lava keeping it molten allowing it to travel great distances from its origin. Photographed in the Hawaii Volcanoes National Park, Hawaii, USA.
Model release not required. Property release not required.