The in situ pH of hydrothermal fluids at mid-ocean ridges

SUPCRT92: A software package for calculating the standard molal thermodynamic properties of minerals, gases, aqueous species, and reactions from 1 to 5000 bar and 0 to 1000°C

James W. Johnson, Éric H. Oelkers, Harold C. Helgeson · Computers & Geosciences · 1992 · 2.6K citations

Materials Science, Thermodynamic Modelling, Engineering +12

Theoretical prediction of the thermodynamic behavior of aqueous electrolytes by high pressures and temperatures; IV, Calculation of activity coefficients, osmotic coefficients, and apparent molal and standard and relative partial molal properties to 600 degrees C and 5kb

H. C. Helgeson, D. H. Kirkham, G Flowers · American Journal of Science · 1981 · 1.8K citations

Electrolytes, Chemical Kinetics, Engineering +23

Calculation of the thermodynamic and transport properties of aqueous species at high pressures and temperatures: Correlation algorithms for ionic species and equation of state predictions to 5 kb and 1000°C

Everett L. Shock, Harold C. Helgeson · Geochimica et Cosmochimica Acta · 1988 · 1K citations

Thermodynamic Modelling, Chemical Engineering, Chemical Thermodynamics +13

Ridge crest hydrothermal activity and the balances of the major and minor elements in the ocean: The Galapagos data

John M. Edmond, C. I. Measures, Russell E. McDuff et al. · Earth and Planetary Science Letters · 1979 · 965 citations

Geophysics, Galapagos Data, Marine Geology +13

Calculation of the thermodynamic and transport properties of aqueous species at high pressures and temperatures: Standard partial molal properties of inorganic neutral species

Everett L. Shock, Harold C. Helgeson, Dimitri A. Sverjensky · Geochimica et Cosmochimica Acta · 1989 · 818 citations

Materials Science, Inorganic Chemistry, Thermodynamic Modelling +13