Tuesday, April 22, 2014

Crater Gullies in Tyrrhena Terra Northeast of Briault Crater

Although gullies are most common in the middle latitudes of Mars, they are also found in equatorial regions. This image shows a 3-kilometer-wide impact crater with gullies all along the steep inner slopes.

An enhanced-color cutout better distinguishes the gully deposits from the surrounding boulder fields. These slopes are very steep, so a fluid like water is not required to explain gully formation.

Photo credit: NASA/JPL/University of Arizona

Note: This impact crater is located in Tyrrhena Terra to the northeast of Briault Crater. For more information, see PIA18225: Equatorial Gullies on Mars.

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