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Jaxon Dii Horne

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  1. Hi Jia, Thanks for explaining things. It is hard to know what some of the commands mean and actually do. I am using GWB10 and want to know if the GWB plugin will work with this old version of GWB. If it does, then it will be great to write a simple python scripts to extract the data more efficiently. Cheers, Jaxon
  2. Hi Jia, I have attached an updated script with wet-dry cycles and a re-hydration step in between weathering and evaporation. The way we have been doing this has been taking the weathering script (EW) run it, then pickup the system fluid, change the H2O back to 1, delete the pH (i.e., pH = ,so that it balances on this and save that file as the re-hydration script. (RH). Next we reopen the EW1 script run it, save the output file as the end of weathering solution (EW1), then take a simple evaporation script which picks up the system fluid, react -950 g H2O fix the fugacity of CO2(g) and H2S(g) and balance on pH. This then gives us the end of evaporation solution (EE1), which we save the output, and that is for 1 wet-dry cycle. Now we take the RH script open it up in a text file, copy the script in to the command window and run it to rehydrate the fluid that is in contact with our original 5% weathering of a rock, then save this output file as RH1. We then open a different text file for the evaporation script (the change from the first evaporation script is a full -1000 g H2O instead of -950 g H2O) and run this in the command window to get the second wet-dry cycle, save the output as EE2, then re-hydrate, save output, evaporate, save out put....till we get ten wet dry cycles. Now the script I have provided does all of this in on go, but only gives me the last cycle for the data when try to export solution chemistry(element concentrations in fluid and or select aqueous species) it from gtplot as a tab delineated spreadsheet. Now this is quite tedious and if I mess up in any of the cycles I have to start over in the process. So my questions are: 1. Can I save each output file automatically as the wet-dry script runs? I sorta have this figured out but cant get the subsequent cycles to save. 2. Is there a way to extract the data at each evaporation cycle instead of just seeing the final solution. (We are interested in the change in element concentrations at the end of each evaporation cycle). Essentially I want to make this work more efficiently and be less time consuming, but also since I have a physical disability with limited dexterity in my hands that make it hard to have to constantly copy and paste things as well as constant mouse clicks for many hours of running and saving scripts. So I am curious if there are any steps to be made to make the GWB more inclusive and open to those that are not able-bodied. Currently it is suited for able bodied individuals. Cheers, Jaxon 1_EW-EE cycles.txt
  3. Hi Jia, Thanks for the clarification. I misunderstood what you said, and a simpler model is better than a complex one. I appreciate your suggestions and will look more into the resources you suggested. This way, I will be able to understand the finer points of GWB. Cheers Jaxon Dii Horne
  4. Hi Jia, Thank you for the clarification. I was attempting to review the examples in the Bethke book and the essential guide, but I thought I might have set it up incorrectly. I appreciate your suggestion and will try it out. Regarding the constant fugacity of SO4--, it was previously used in a script and model to analyze evaporation/weathering cycles that occurred 4-3.5 billion years ago as a proxy for the quantity of volcanic gases released into the atmosphere. However, this may not be the appropriate approach as balancing on the HCO3- or SO4-- changes the resulting pH. Hence, I need to reconsider this approach. I'm curious about what you meant by turning off the charge balance and determining if the solution is in excess of cations or anions. How can I identify if it's in excess based on the calculation output? Can I then use this information to balance the basis and ensure it's comparable to the published dataset I'm trying to model? I hope this makes sense. I have also attached a new script trying to address what you suggested, I think. Cheers, Jaxon 0.003_EW_JDH.rea
  5. Hi, I want to know if I have this set up correctly. I am using GWB10 Professional. I want to take a hypothetical solution that will react with a komatite-type rock and change the initial pCO2 concentration to see the initial pH in the rainwater. How I have approached this by trying to use a sliding fugacity of pCO2 (e.g., 0.003 pCO2 to 0.003 pCO2) to solve for the initial pH of the rainwater before it reacts with the rock. I might be thinking about this wrong, but I have attached a script. Hope this helps. Cheer, Jaxon 0.003_EW.rea
  6. Hi Jia- I was able to make some progress finally on the database. I have attached the .sdat and .tdat files that I have created. These are the work in progress I have a fulvic acid and humic acid database converted from thermo and mineteq database, and the surface complexation model for the humic acids. The problem that I have encountered is that ~90% of the humic acids (HA) should complex with the surface of the mineral goethite, and I get really small values, so I think I don't have the reaction setup correctly. Cheers, Jaxon Ha_REE1v1.sdat thermo_YREE_HA-FA.tdat
  7. Hi- I am trying to ensure that I understand the process occurring with GWB. I have attached a script that I am using. I want to take my initial fluid and react it with minerals commonly found in a komatiite; that would be my weathered solution at the end of this reaction. I would then pick that fluid up and rehydrate it (i.e., react with 950 g of H2O) and then allow for reaction with the komatite and allow for evaporation to occur (e.g., remove 950g of H2O), which would give me a brine solution. I would continue this wet, dry cycling for 10-15 cycles and see what minerals and the elemental composition in the fluid would be after the reaction. So first, I want to understand if I have this setup right, and then I would like to know if there is a way to set this up in one complete reaction/script instead of having multiple files. I am using React. I have GWB professional. Cheers, Jaxon 4_Kom_5PCT_0,05atmCO2_50mgOHAP.txt
  8. Hi-- I am trying to find some guidance. I am trying to convert/add an organic metal ion complexation WHAM Model VII database to GWB, but I am having difficulty doing this. I have read the essential guides, the manual, the book, and tutorials on converting databases to GWB format. I think my problem is that I do not really want to enter in all the data by hand, but can not quite figure out the format in which I should have the txt/sdat/tdat file in to allow the tedit program to import the dataset. It doesn't extensively explain how I would build a new database from scratch. My thoughts were to look at the HFO database that comes with GWB and then edit the text file to add in my data but that does not seem to be working. I would appreciate any help with this. Jaxon Dii Horne
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