Akaganeite (Cl-bearing Fe(III) (hydr)oxide) was identified by the Chemistry and Mineralogy X-ray diffraction (XRD) instrument onboard the Mars Science Laboratory (MSL) Curiosity Rover in mudstones drilled at Yellowknife Bay and Vera Ru-bin Ridge in Gale crater [1,2]. The mineral likely formed in chloride-bearing solutions of variable pH[3]but progenitor Fe-bearing phases for martian akaganeite are not well constrained. Akaganeite in Gale crater has been proposed to form through oxidation of Fe(II) sulfide minerals [2,3]. The objectives of this study was to constrain akaganeite formation conditions from Fe(II) sulfide pyrrhotite.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Formation of Fe(III) (hydr)oxides from Fe(II) Sulfides: Implications for Akaganeite Detection on Mars


    Contributors:
    T S Peretyazhko (author) / D W Ming (author) / R V Morris (author) / D G Agresti (author) / W P Buckley (author)

    Conference:

    53rd Lunar and Planetary Science Conference ; 2022 ; The Woodlands, TX, US


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English