This article has an erratum: [https://doi.org/10.1051/0004-6361/201628634e]
Upper: NAC image showing the Bes region and surrounding regions. The small box shows the region highlighted in the small inbox, which shows a polygonally-fractured scarp with sharp irregular edge. Larger box shows the position of the zoomed area in the lower panel. Lower: highlighted region in Bes showing the predominantly-fractured surface (marked “F”), which is sporadically covered by irregular smooth coatings (marked “s”) of variable size and thickness. For image ID of this figure and others that follow, check Table A.1.
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