Coprates Chasma
Description: Coprates Chasma is a major canyon in the Valles Marineris system, 966 km long and up to 8 km deep, with steep walls exposing layered rocks. Formed by tectonic rifting, it features landslides, fault lines, and possible water-carved channels, revealing Mars' crustal layers including basalts and sulfates from ancient hydrological activity.
How I Got My Name: Named after Coprates River, an old name for Dez River in Iran, following theme of Earth rivers for Martian valleys.
Interesting Fact: MRO images show massive landslides covering 40% of the floor; layered deposits suggest episodic flooding, with minerals like jarosite indicating acidic water environments billions of years ago.
Location: Centered at 13.4° S, 61.4° W, 966 km long.
