Flow on the Rim of Tooting Crater

This oblique view from NASA's Mars Reconnaissance Orbiter shows a small part of the near-rim ejecta from Tooting Crater. The flow extending from upper left to lower right looks much like a typical lava flow, but doesn't emanate from a volcanic vent. Instead, this must be either melted rock from the impact event, or a wet debris flow from melting of ice. The surface is dusty so color variations are minor. https://photojournal.jpl.nasa.gov/catalog/PIA21648