Volcanic activity on Mercury

Volcanic activity on Mercury

Fig. 6.15 . This enhanced-color view, taken during the third flyby of Mercury by the MESSENGER spacecraft, enhances compositional differences in the features observed. The bright yellow area near the top right is centered on an irregular depression that is possibly an explosive volcanic vent. The double-ring basin in the center of this image may be filled by the flow of effusive volcanic lava; the basin is 290 kilometers in diameter. Smooth plains, thought to be the result of volcanic activity at earlier episodes than the others shown here, are located in much of the surrounding area. (Courtesy of NASA/JHUAPL/CIW.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University