Argyre region on Mars

Argyre region on Mars

. A mosaic of Viking images reveals the Argyre impact basin (left center) on Mars. The basin is a large circular expanse of light-colored plains about 800 thousand meters across. Its smooth floor is apparently filled with lava, like the Imbrium Basin on the Moon (Fig. 2.18). A rim of rugged mountains (left bottom) marks the basin edge, resembling the Apennine mountains on the Moon (Fig. 2.18). The adjacent terrain shows the heavily cratered surface of Mars that is typical of the planet's southern hemisphere. Argyre is the name of the "silver" island at the mouth of the Ganges River on Earth. (Courtesy of JPL, NASA and the U.S. Geological Survey.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University