Culann Patera

Culann Patera

. One of the most colorful volcanic centers on Io is shown in this picture, constructed from images taken on 25 November 1999 through the red, green, and violet filters of a camera on board Galileo. Various colored lava flows spill out of the caldera on all sides. Unusual dark red flows to the south east (bottom right) may be sulfur flows or silicate flows whose surfaces have been modified. The diffuse red material around the caldera is believed to be a compound of sulfur deposited from a plume of gas. Culann is the Celtic smith god, and patera is a Roman term meaning a "broad flat saucer or dish". (Courtesy of JPL, NASA and LPL at the University of Arizona.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University