Volcanic pancake domes

Volcanic pancake domes

Fig. 7.22 . This Magellan radar image, centered in the Eistia Region at 12.3 degrees north latitude and 8.6 degrees east longitude, shows an area 250 kilometers wide. The prominent circular features are volcanic pancake domes, each about 65 kilometers across, with broad, flat tops less than one kilometer in height. They are formed from viscous, or sticky, lava, and include cracks and pits that result from cooling and withdrawal of the lava. (Courtesy of NASA/JPL.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University