Gullies and Ice-rich Material (EDM - Natural Colors; credits: Lunexit)

In this EDM (approx. 500 mt across) we can notice that the crater floor is covered in boulders, dunes and textured material.
The boulders are likely a “sublimation lag” that provides evidence that material on the crater floor is, or once was, ice-rich. A sublimation lag forms when ice-rich material sublimates leaving the boulders and rocks behind. It is possible that the boulders on this crater floor represent such a process.
The pitted texture around boulders may also be an indicator of ice sublimation.