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Valles Marineris is an approximately 3000-km-long canyon system on Mars that surrounds the high plains of Tharsis. Candor Chasma, situated in northern Valles Marineris, is part of a radial graben system. A graben is a feature bound by parallel normal faults, where the graben floor moves downward relative to the adjoining material. The grabens in the area were created radially, as the Tharsis bulge formed due to volcanic uplift.
Credit: ESA/DLR/FU Berlin (G. Neukum).
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