Global Volcanism Program | Image GVP-03519
An `a`a lava flow, with a characteristic surface containing abundant angular chunks as it cools, advancing across a smooth-textured pahoehoe lava flow. The hot, incandescent flow interior is visible. The front of this 3 June 1994 flow at Laeapuki, near the Puna coast of Kilauea volcano, is about 1 m thick.
Photo by Paul Kimberly, 1994 (Smithsonian Institution).