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PHASESQuartz(alpha)SiO2 + 2.000H2O = 1.000H4SiO4 log_k -3.737AragoniteCaCO3 + 1.000H+ = 1.000HCO3- + 1.000Ca+2 log_k 2.014 CalciteCaCO3 + 1.000H+ = 1.000HCO3- + 1.000Ca+2 log_k 1.847 ENDSOLID_SOLUTIONS 1 Ca(x)Sr(1-x)CO3 -comp1 Aragonite 0.759 -comp2 Strontianite 0.001 -Gugg_nondim 3.43 -1.82ENDSOLUTION 1 -ph 7 charge -redox pe -units mol/kgw -temp 25 -water 1Sr 7e-6ENDEQUILIBRIUM_PHASES 1Aragonite 0 0Strontianite 0 0Quartz(alpha) 0 0.0666ENDSELECTED_OUTPUT -file Solid_solution.txt -reaction true -totals Ca Sr Si -solid_solutions Aragonite Strontianite -equilibrium_phases Aragonite Quartz(alpha)#### ANC modelling ######## HNO3 addition from 0 to 0.02mol/L ####USE SOLUTION 1USE SOLID_SOLUTIONS 1 USE EQUILIBRIUM_PHASES 1 REACTION 1 HNO3 1 0.02 mole in 100 stepsEND#### HNO3 addition from 0 to 2.5mol/L ####USE SOLUTION 1USE SOLID_SOLUTIONS 1 USE EQUILIBRIUM_PHASES 1 REACTION 2 HNO3 1 2.5 mole in 125 stepsEND