File:Mud Volcanoes In Mare Acidalium, Mars 01.jpg
Similar to volcanoes formed out of molten rock, or lava, mud volcanoes form as the erupted mud piles up at the surface. Acidalia Planitia was likely a large depression that filled with mud, sand, and other sediments that were transported here by water flowing from regions to the south.
Written by: Chris Okubo (19 July 2023)