The layering of material observed at the bottom of this impact crater imaged by NASA Mars Odyssey spacecraft suggests multiple depositional and erosional episodes in a changing environment. http://photojournal.jpl.nasa.gov/catalog/PIA04021
The layering of material observed at the bottom of this impact crater imaged by NASA Mars Odyssey spacecraft suggests multiple depositional and erosional episodes in a changing environment. http://photojournal.jpl.nasa.gov/catalog/PIA04021