Phyllosilicate diversity and past aqueous activity revealed at Mawrth Vallis, Mars.

@article{Bishop2008PhyllosilicateDA,
  title={Phyllosilicate diversity and past aqueous activity revealed at Mawrth Vallis, Mars.},
  author={Janice L. Bishop and Eldar Noe Dobrea and Nancy K. McKeown and Mario Parente and Bethany L. Ehlmann and Joseph R. Michalski and Ralph E. Milliken and F. Poulet and Gregg Alan Swayze and John F. Mustard and Scott L. Murchie and J Bibring},
  journal={Science},
  year={2008},
  volume={321 5890},
  pages={830-3}
}
Observations by the Mars Reconnaissance Orbiter/Compact Reconnaissance Imaging Spectrometer for Mars in the Mawrth Vallis region show several phyllosilicate species, indicating a wide range of past aqueous activity. Iron/magnesium (Fe/Mg)-smectite is observed in light-toned outcrops that probably formed via aqueous alteration of basalt of the ancient cratered terrain. This unit is overlain by rocks rich in hydrated silica, montmorillonite, and kaolinite that may have formed via subsequent… CONTINUE READING

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