Terraced Fan in Aeolis Region

This image shows the Southwest region of a degraded crater’s floor, located near the equator.

The high-standing ridge near the bottom of the scene is a terrace that slumped off the crater’s rim (located just south of this image). The bumpy terrain near the top of the image is also material that has slumped off the crater rim.

The center of the image contains a terraced fan. The fan emanates from a valley (not pictured, located left of the scene) that intersects the crater’s south rim, which suggests that the valley might have transported fluid, likely water, into the crater. If this happened, then the fan marks where the flow deposited its sediment.

Written by: Kelly Kolb   (17 December 2008)

This is a stereo pair with ESP_015953_1735 .

More info and image formats at http://hirise.lpl.arizona.edu/PSP_009729_1735

Image: NASA/JPL/University of Arizona