List of areas of chaos terrain on Mars


This is a list of areas of chaos terrain officially named by the International Astronomical Union on the planet Mars. Chaos terrain is an astrogeological term used to denote planetary surface areas where features such as ridges, cracks, and plains appear jumbled and enmeshed with one another. Coordinates are in planetocentric latitude with east longitude.
Areas of chaos terrain are usually named after a nearby albedo feature as in line with the IAU's rules on planetary nomenclature. Such an albedo feature must feature on the maps of Mars made by either Giovanni Schiaparelli or Eugène Michel Antoniadi and are listed at Classical albedo features on Mars.
, Aram Chaos lies in the upper left and Iani Chaos in the lower right.
ChaosCoordinatesDiameter Approval dateNamed afterRef
Aeolis Chaos2012018Classical albedo feature name
Aram Chaos283.811976Classical albedo feature name
Aromatum Chaos72.81979Classical albedo feature name
Arsinoes Chaos200.081982Daughter of Ptolomy Lagun and Bernice
Atlantis Chaos181.371985From albedo feature at 30N, 173W
Aureum Chaos351.031976Classical albedo feature name
Aurorae Chaos713.921991Classical albedo name
Baetis Chaos66.662006Classical albedo feature name
Candor Chaos01985From albedo feature at 5N, 75W
Caralis Chaos103.352014Classical albedo feature name
Chryse Chaos658.892008Classical albedo feature name
Echus Chaos480.511985Classical albedo feature name
Eos Chaos497.851982Classical albedo feature name
Erythraeum Chaos147.632007Classical albedo feature name
Galaxias Chaos234.481985Albedo feature name
Ganges Chaos113.732006Classical albedo feature name
Gorgonum Chaos150.711985From albedo feature at 24S, 154W
Hellas Chaos590.621994Named for albedo feature Hellas
Hydaspis Chaos336.041976Classical albedo feature name
Hydrae Chaos662014Classical albedo feature name
Hydraotes Chaos419.041976Classical albedo feature name
Iamuna Chaos21.722006Classical albedo feature name
Iani Chaos450.511976Classical albedo feature name
Ister Chaos109.11985From classical albedo feature at 10N, 56W
Margaritifer Chaos383.671976Classical albedo feature name
Nia Chaos482017Classical albedo feature name
Nilus Chaos2831985Named for albedo feature at 20N, 65W
Oxia Chaos24.122006Classical albedo feature name
Pyrrhae Chaos162.351982Albedo feature name
Xanthe Chaos34.372006Classical albedo feature name