Concept

Aram Chaos

Summary
Aram Chaos, centered at 2.6°N, 21.5°W, is a heavily eroded impact crater on Mars. It lies at the eastern end of the large canyon Valles Marineris and close to Ares Vallis. Various geological processes have reduced it to a circular area of chaotic terrain. Aram Chaos takes its name from Aram, one of the classical albedo features observed by Giovanni Schiaparelli, who named it after the Biblical land of Aram. Spectroscopic observation from orbit indicates the presence of the mineral hematite, likely a signature of a once aqueous environment. Description Aram Chaos is an impact crater on Mars measuring 280 kilometers (170 mi) in diameter. It lies in the Oxia Palus quadrangle in a region called Margaritifer Terra, and its exact coordinates on Mars are . The Thermal Emission Imaging System (THEMIS) on the orbiter Mars Odyssey found gray crystalline hematite on the floor of Aram Chaos and CRISM, the spectroscope on the MRO, found hydrated sulfates, jarosite, and hematite. The flo
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