rahul Posted July 5, 2010 Share Posted July 5, 2010 Hi I was wondering how would I go about adding minerals like stevensite to the phrqpitz data set and can i use the constants used for smectites in thermo data set. Rahul Quote Link to comment Share on other sites More sharing options...
Tom Meuzelaar Posted July 6, 2010 Share Posted July 6, 2010 Hi I was wondering how would I go about adding minerals like stevensite to the phrqpitz data set and can i use the constants used for smectites in thermo data set. Rahul Dear Rahul: General instructions for adding minerals to thermo databases can be found in the Appendix: Thermo Datasets in the GWB v8 Reference manual. Adding data to a Pitzer database is a far trickier business- for this, I suggest that you refer to the original Harvey-Moller-Weare compilation and PHRQPITZ documentation: Harvie, C.E, N. Møller and J.H. Weare, 1984, The prediction of mineral solubilities in natural waters: The Na-K-Mg-Ca-H-Cl-SO4-OH-HCO3-CO3-CO2-H2O system to high ionic strengths at 25°C. Geochimica et Cosmochimica Acta 48, 723–751. Plummer, L.N., D.L. Parkhurst, G.W. Fleming and S.A. Dunkle, 1988, PHRQPITZ — A computer program incorporating Pitzer’s equations for calculation of geochemical reactions in brines. U.S. Geological Survey Water-Resources Investigations Report 88–4153, 310 p. Regards, Tom Meuzelaar RockWare, Inc. Quote Link to comment Share on other sites More sharing options...
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