Fluvial Activity Resulted in Alluvial Fan in Icaria Planum, Mars

Introduction: The Claritas rift zone on the southern Tharsis slope has several indications of water and ice activity phases (Fig. 1, 39S, 258E) as seen from the Mars Express HRSC data [1,2]. Volatiles were transported from the peaks (1 in Fig. 1) into the basins of Claritas Fossae. Water filled the main basin (2 in Fig. 1), formed a paleolake and breached through the saddle valley forming a channel (3 in Fig. 1) to the west [2,3].