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The Bruce Murray Space Image Library

The Martian mineralogical time scale

Filed under mineralogy and petrology, spectroscopy, Mars Express, geology, explaining science, Mars

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The Martian mineralogical time scale Bibring et al (2006)'s new paradigm for Mars' geologic time scale included "three sequential eras characterized by their surface alteration products: (i) a nonacidic aqueous alteration, traced by phyllosilicates (the 'phyllosian' era); (ii) an acidic aqueous alteration, traced by sulfates (the 'theiikian' era); and (iii) an atmospheric aqueous-free alteration, traced by ferric oxides (the 'siderikian' era)."

Jean-Pierre Bibring et al., 2006

Original image data dated on or about April 1, 2006

 

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