Ultraviolet Photooxidation of Carbonate-bearing Aqueous Ferrous Iron within Open and Closed Experimental Systems – Implications for Sunlit Surface Water Bodies on Early Mars

The datasets included are Microsoft Excel files. The file names that include "Main" refer to those that are plotted in the main text of the paper and "SI" pertains to those plotted in the supporting information. "Main_ATRFTIR": ATR-FTIR spectra for minerals precipitated from experiments O-UV_pHi7.46, C-UV_pHi6.54, and C-UV_pHi7.44 "Main_IronSpeciation": pH vs. log activity diagrams for experimental solutions from this study with 35 mM DIC (sheet: Fe-DIC_Fig12) and without DIC (sheet: Fe_Fig13) "Main_OpenSystemExps": XRD patterns for all of the samples precipitated from the open system UV irradiation experiments O-UV_pHi5.15, O-UV_pHi5.88, O-UV_pHi7.46 "SI_XRD": XRD patterns for a no UV control experiment, O-noUV_pHi8.52, and three closed system UV irradiation experiments C-UV_pHi7.30, C-UV_pHi7.44, C-UV_pHi8.01