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33 lines
1.1 KiB
Plaintext
33 lines
1.1 KiB
Plaintext
TITLE Example 16.--Inverse modeling of Sierra springs
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SOLUTION_SPREAD
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-units mmol/L
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Number pH Si Ca Mg Na K Alkalinity S(6) Cl
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1 6.2 0.273 0.078 0.029 0.134 0.028 0.328 0.01 0.014
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2 6.8 0.41 0.26 0.071 0.259 0.04 0.895 0.025 0.03
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INVERSE_MODELING 1
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-solutions 1 2
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-uncertainty 0.025
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-range
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-phases
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Halite
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Gypsum
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Kaolinite precip
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Ca-montmorillonite precip
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CO2(g)
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Calcite
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Chalcedony precip
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Biotite dissolve
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Plagioclase dissolve
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-balances
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Ca 0.05 0.025
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PHASES
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Biotite
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KMg3AlSi3O10(OH)2 + 6H+ + 4H2O = K+ + 3Mg+2 + Al(OH)4- + 3H4SiO4
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log_k 0.0 # No log_k, Inverse modeling only
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Plagioclase
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Na0.62Ca0.38Al1.38Si2.62O8 + 5.52 H+ + 2.48H2O = \
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0.62Na+ + 0.38Ca+2 + 1.38Al+3 + 2.62H4SiO4
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log_k 0.0 # No log_k, inverse modeling only
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END
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