HiRISE: Mantled terrain in southern mid-latitudes

ESP_037474_1380The mid-latitudes of Mars (about 30 to 60 degrees, north and south) are covered in ice-rich mantling deposits in varying states of degradation. This mantle is thought to be deposited as snow during periods when the angle of the tilt of Mars’ rotational axis — called obliquity — is much higher, which last happened around 10 million years ago…. [More at link]

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