Reconstructing the infilling history within Robert Sharp crater, Mars: Insights from morphology and stratigraphy

Recent mineralogical studies suggest past aqueous activities in the 150-km-wide Robert Sharp impact crater, western neighbor of Gale crater on Mars. Despite their similarities, and craters display very different morphologies. Using high-resolution orbital images, we made morphological stratigraphical analyses, as well age determinations showing that has experienced a complex geological history. This includes formation fretted terrain deposition airfall material during early – middle Hesperian epoch. The presence valleys, fan deltas, numerous minerals indicates fluviolacustrine episodes epoch persisted episodically until Amazonian between 1.3 Ga 500 Ma. Thus, have contemporaneous phases possibly up to two billions years after lacustrine environment recorded by Curiosity rover within crater.