Debris flows of the Simud-Tiu outflow system of Mars

It is seen that the magnitude of geologic happenings are commonly quite different between the Earth and Mars because of differences in the makeup and breakup of their crusts. By assessing the differences, and the similarities, between planets, the geologic history of Mars can be more fully understood. The identification of debris-flow deposits in channels of Mars, for example, helps to establish which of several competing explanations for the origin of the channels actually occurred. In turn, the Earth is viewed in new, and commonly enlightening perspectives. By the way, it is fortunate that on Earth, thick sequences of impact ejected are not found that could be transformed into the monstrous debris flows that have devastated the Martian surface.