Image Credit: NASA/JPL/ASU

Context image credit: NASA/JPL/MOLA
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Detailed information on this image is available at the THEMIS Data Releases website.

 

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

 

Two craters in Arabia Terra, in the old cratered highlands, are surrounded by many small mesas. The two craters are parti- ally shown in the central-left and extreme upper-right of the image. These mesas are remnants of ejecta blankets of debris that were cast out when the impact craters originally formed. These former ejecta blankets formed a material resistant to weathering, and so they remain on the surface as mesas, while the surrounding terrain has been stripped away.