Vincent Posted April 22, 2009 Share Posted April 22, 2009 Hello, I'm relatively new in the use of GWB (version 6.0.3). I'm especially interested in React to trace the evolutions of evaporating solutions and as function of temperature. I know that for example it is possible to determine the precipitating parageneses with increasing temperature. However, my models aim at simulating surface processes on Mars. Therfore, I'd like to simulate the processes occuring under 0 C. I know that saline solutions at low temperatire have a lower eutectic temperature. In some cases some eutectic solutions can remain liquid down to -70 C (Ferric sulfate for example). I previously modelled such behaviors on simple salts using the Pitzer model. I know there is a Pitzer database working very well for evaporation but I would like to be able to use it in models at low temperature. Is there a way I could model/program this in the command section? Also two quick questions: - How can I calculate the water-to-rock ratio during evaporation other than manually by adding all the precipitated phases and dividing by the amount of water - How can I extract the water activity (for example as a text file) calculated using the Pitzer model after running a model? Thank you very much. Vincent Quote Link to comment Share on other sites More sharing options...
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