Valley Relief of the Northeastern Part of Terra Cimmeria on Mars

A study of the valley topography of the northeastern part of Terra Cimmeria on Mars was carried out. The results of the study allow us to draw the following conclusions. (1) The morphology of the studied valley systems corresponds to their presumed fluvial origin. (2) The remains of the paleodelta in the Gusev crater, fragments of terrace levels traced along the valley, regular changes in their height, as well as the remains of eroded accumulative bodies discovered in the Ma’adim Valley indicate the existence of individual episodes of partial filling of the valleys with sediment, probably due to the activation of the uppermost links of the valley system that supplied fragmentary material to the main valley. A detailed study of the morphology and topography of the Durius Valley suggests the same mechanism of its formation.