FIG 6.
Hypothetical global scheme of the processes at LFLS. Orange details on barrels reading Fe(III) represent solid Fe(III) minerals, mainly (oxy)hydroxides. Colors of arrows represent the time at which each process takes place: red, aerobic/after rain; brown, microaerophilic; blue, anaerobic/dry phase; black arrows indicate processes that seem to be independent from the sampling time. Dashed arrows indicate transport. Abbreviations: Corg, organic carbon; MIC, microbially induced corrosion; CH3-HSPT:Fe-S protein Co-MT, 5-methyltetrahydrosarcinapterin:corrinoid/iron-sulfur protein co-methyltransferase.