• Source: Memphis Facula

Memphis Facula is a palimpsest, or "ghost crater", on Ganymede, the largest of the Jovian satellites.
About 360 km across, it is situated in the southwestern part of Galileo Regio, a huge almost circular dark region in Ganymede's northern hemisphere. Although almost level today, it is a relic of a massive impact and once was a deep impact crater whose walls have slumped and its floor has risen isostatically, smoothing out the remaining topography with slush.
The morphology of the larger palimpsests like Memphis Facula suggests that Ganymede's icy crust at the time of impact was about 10 km thick and was penetrated by the impact, allowing the slush and fluid beneath to fill and level out the crater.




See also


Ganymede City




References

Kata Kunci Pencarian:

• Palimpsest (astronomi)
• Memphis Facula
• Palimpsest (planetary astronomy)
• List of geological features on Ganymede
• List of quadrangles on Ganymede
• Galileo Regio
• List of craters on Ganymede
• List of craters in the Solar System