Beautiful Exposed Bedrock and Sand Dunes on Mars
Impact craters can be quite complex. Depending on the size of the impactor, and on the size of the planet it strikes, craters form differently. Some form central peaks or uplifted structures, or even pits as seen in this image.
This image is the HiPOD, or the HiRISE (High Resolution Imaging Science Experiment) Picture of the Day. HiPOD’s are a selection of outstanding or particularly significant images of Mars from the HiRISE instrument on NASA’s Mars Reconnaissance Orbiter (MRO).
In this crater the central pit exposes bedrock with different colors. Each different color is a different bedrock “unit” with a different composition. In this crater, the CRISM (Compact Reconnaissance Imaging Spectrometer for Mars) instrument on the MRO identified clay-rich minerals.
NASA also released this cut-out of the eastern half of the central pit.