Dark Light

Is the sinuous ridge here a “fluvial-ridge,” i.e., an inversion of a fluvial sediment deposit? It is important to inventory as much of the Medusae Fossae Formation region for depositional structures that give clues to the processes that emplaced the material. We also want to understand the extent to which a pyroclastic hypothesis of formation can be applied or not.


Image: NASA/JPL/University of Arizona https://www.uahirise.org/hipod/ESP_070915_1710
Related Posts

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.