Lava flows in Daedalia Planum Mars Express imaged Daedalia
Planum, a sparsely cratered, untextured plain on the Red Planet
featuring solidified lava flows of varying ages. Daedalia Planum
lies to the south-east of Arsia Mons, one of the largest
volcanoes on Mars. It is 350 km in diameter and rises 14 km. The
plain is dominated by numerous lava flows of varying ages. It
lies at about 21°S / 243°E. The images have a ground resolution
of about 17 m/pixel and cover about 150 x 75 km or 11 250 sq km,
an area roughly the size of Jamaica. The region features
numerous solidified lava flows of different ages. These flows
originate at the southern flank of Arsia Mons. The map shows two
lava flows: the younger flow (upper portion visible in nadir
images) exhibits flow structures, pressure ridges as well as the
central lava channel (upper right corner). An older flow visible
in the lower portion has a smoother surface owing to gradual
accumulation of sediments. Two striking depressions lying almost
at right angles to the