Wind, Water, and Lava

Scaled Image

Image Credit: NASA/JPL/ASU

About this image

The three main geological agents acting on the Martian surface are visible in this image, within an outflow channel to the east of the Tharsis volcanos and north of Valles Marineris. In a wide channel previously eroded by water, linear features have been eroded into the rock by the wind. Some of the material that may have eroded the surface are trapped within the crater, forming mega-ripples (a dune form). Later, lava flows embayed the streamlined rocks. A second, younger flow lobe is visible at the bottom of the image.

Please see the THEMIS Data Citation Note for details on crediting THEMIS images. 


Image ID: 
V06344021 (View data in Mars Image Explorer)
2003-05-20 13:15
Wed, 2003-06-18
1024 pixels (18 km)
3648 pixels (66 km)
0.018162 km/pixel
0.018294 km/pixel


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