The Phaethontis quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey Astrogeology Research Program. The Phaethontis quadrangle is also referred to as
Image of the Phaethontis Quadrangle (MC-24). The region is dominated by heavily cratered highlands and low-lying areas forming relatively smooth plains.
Electris Deposit, as seen by HiRISE. Electris deposit is light-toned and smooth in the image in contrast to rough materials below. Gullies are also visible.
Layers in light-toned Electris Deposit, as seen by HiRISE on the Mars Reconnaissance Orbiter. Gullies are visible on the left.
Gorgonum Chaos as seen by Mars Reconnaissance Orbiter HiRISE. Image about 4 km wide.
The planet Mars has distinctive areas of chaos terrain, a topography unlike any on Earth. Chaos terrain generally consists of irregular groups of large blocks, some reaching tens of kilometers across
These drawings show stages in the formation of Aram chaos and probably many other chaotic terrains according to a model advanced by Zegers et al. 2010. Click on images to see more details.
Enlargement of area in rectangle of the previous image. On Earth the ridge would be called the terminal moraine of an alpine glacier. Picture taken with HiRISE under the HiWish program. Image from Ismenius Lacus quadrangle.
Crater that was buried in another age and is now being exposed by erosion, as seen by the Mars Global Surveyor. This is evidence that there may be many buried craters in the subsurface of Mars.
This series of drawings show another model for the formation of Martian chaos, as proposed by Pedersen and Head 2011 Amount of sublimation is exaggerated to improve understanding. Click on image to see more details.