Please enable JavaScript.

Coggle requires JavaScript to display documents.

Mars: Water or No Water? 9f5ca1d03f240f5dc377a441cd1ee93f - Coggle Diagram

- - - - Olivine and Pyroxene cannot exist with water
- - - - found in putative palaeolakes and fluvial basins
      - not clear whether clay minerals are allochthonous
        (transported) or autochthonous (formed within)
    - - cannot be defined as crustal/sedimentary
      - occur in high standing topography folloiwng a pre-existing
        topographic surface
      - formation by either autochthonous alteration or draping by
        air-fall deposits
    - - Exist in walls, central peaks, ejectas of craters
      - Fe, Mg, Chlorite always in these clay units
      - not known if generated by impact or excavated from depth by
        impact
      - might produce clay near hot central peak beneath melt sheet or
        lower crater walls