HiPOD: 2 March 2019
Circular Features in Southern Elysium Planitia

Circular Features in Southern Elysium Planitia
It appears that a couple of craters were just barely flooded by lava, with a jumble of blocky material in the middle. Curious why this happens and where the blocky stuff comes from—if the craters were filled by something, why did lava flow in at a lower level and why does the jumble stick up above the crater rim?

ID: ESP_054641_1805
date: 24 March 2018
altitude: 271 km
Observation details page

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NASA/JPL/University of Arizona
Black & white is less than 5 km across; enhanced color is less than 1 km