images

Mars: summit caldera of volcano Albor Tholus

by

ESA/DLR/FU Berlin-G. Neukum/Novapix

Reference

a-mar09-00010

Date

2006-10-19

This picture was taken by Mars Express on 19 January 2004. It shows a three-dimensional oblique view of the summit caldera of Albor Tholus, a volcano in the Elysium region. The caldera has a diameter of 30 km and a depth of 3 km. The volcano as a whole has a diameter of 160 km and a height of 4.5 km. This is geologically interesting, since the depth of the caldera approaches the height of the volcano, which is unusual on Earth. On the far left rim of the caldera, a bright "dust fall" seems to flow from the surrounding plateau into the caldera.