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The Evolution of Juventae Chasma, Valles Marineris, Mars: Progressive Collapse and Sedimentation
Hauber, E.; Rossi, A. P.; Flahaut, J. +3 more
Juventae Chasma is an isolated chasm located north of the interconnected chasms within Valles Marineris. It contains four separate interior layered deposit (ILD) mounds. We have combined layer measurements, as well as mineralogical data of the mounds with topographic data of the remaining chasm and the surrounding plateau. Our observations indicat…
Widespread exposure of Noachian phyllosilicates in the Margaritifer region of Mars: Implications for paleohydrology and astrobiological detection
Hynek, Brian M.; Thomas, Rebecca J.; Osterloo, Mikki M. +1 more
The best locations at which to detect evidence for early life on Mars are in materials formed in near-surface aqueous environments, particularly where this resulted in the deposition of minerals such as clays that are favorable to preservation of organics. The geological history of the Margaritifer region has resulted in exceptional potential to p…
The structural, stratigraphic, and paleoenvironmental record exposed on the rim and walls of Iazu Crater, Mars
Arvidson, R. E.; Murchie, S. L.; Zanetti, M. +2 more
Iazu is a 6.8 km diameter crater located 25 km south of Endeavour Crater in Meridiani Planum, Mars. The asymmetrical ejecta deposit and crater shape demonstrate that Iazu was formed by the impact of a projectile moving from west to east at 20 to 30° above the horizontal. The crater rim and walls expose an 115 m thick section of intact banded brigh…