This slide shows a comparison of rift zones on the three largest terrestrial planets. The Venus SAR image is of Devana Chasma as it runs from Theia Mons in the north to Phoebe Regio in the south. On Earth, digital topography and bathymetry are used to create this shaded relief portrayal of the East African rift system as it runs north and intersects at the Afar triple junction with the oceanic spreading centers of the Red Sea and the Gulf of Aden. The Mars image is a Viking image mosaic of the Valles Marineris system.
Mars image obtained from the Mars Multi-Scale Map, Calvin Hamilton (Los Alamos National Laboratory).