Diverse landforms on Mars – the mouth region of Mamers Valles
Diverse landforms on Mars – the mouth region of Mamers Valles
Although the mouth region of Mamers Valles lies at 45 degrees north latitude, ice deposits are still present there today. These are protected from sublimation by a layer of dust and debris known as glacial ice deposits. Typical of the transition from the Martian highlands in the south (on the left of the image) to the northern lowlands are mesas (table mountains) that have been spared from erosion by water and ice. The image resolution of the HRSC images, at 20 metres per pixel, allows a whole series of small dust devils to be identified. Some of these dust devils pick up dust at high speed and carry it across the Martian surface. Small boxes mark their positions at the time the image was taken. Water flowing down from the highlands has carved out deep outflow channels (valleys) up to 25 kilometres wide into the landscape.
