What is this ridge doing here? Is it preexisting material surrounded by lava? Is it material pushed up at a restraining bend? If the ridge is not lava, it may have colorful flanks.
Dark
Light
This obsevation focuses a ridge that is standing above the old lava surface of the floor of Echua Chasma.
Image: NASA/JPL/University of Arizona https://www.uahirise.org/hipod/ESP_065793_1825
Related Posts
Elongated Dunes
These lovely linear dunes at Meroe Patera identified in Context Camera images that have developed in a sand starved region of the dune field, elongating from behind a cliff.
Ancient Rivers
Billions of years ago, a river flowed across this scene in Mawrth Vallis. Like on Earth, these river beds can get filled up with rocks that are cemented together.
Dunes and Bedrock
Sometimes, we acquire an image for the simple reason of getting either more coverage of an area, and/or to complete a mosaic of a particular spot.
Among the Yardangs
Is the sinuous ridge here a “fluvial-ridge,” i.e., an inversion of a fluvial sediment deposit? It is important…