Figure 3

(A) Proto-dolomite phase from KAAS-1 during March of 2016 and associated EDS spectra. Area of interest indicated by cross. (B) Dolomite phase from KAAS-2 during March of 2016 and associated EDS spectra. Area of interest indicated by cross. (C) Proto-dolomite and dolomite phases from KAAS-1 during October of 2016 and associated EDS spectra. Area of interest indicated by cross. (D) Dolomite phase from KAAS-2 during October of 2016 and associated EDS spectra. Dolomite only located in the lower layers of the mat at this time. Area of interest indicated by cross. (E) Dolomite phase from KAAS-1 during February of 2018 and associated EDS spectra. Area of interest indicated by cross. (F) Proto-dolomite phase from KAAS-1 during February of 2018 and associated EDS spectra. Area of interest indicated by cross.