Stefan, Finally got your input file, but it may not have been worth the effort. Your file looks ok except some of the tabs got jumbled in the ascii version. Each tab delimits the end of a field, so as ascii text it can look kind of ugly when data are missing. There are two interactive programs, PhreeqcI and Phreeqc For Windows. Sounds like you are using Phreeqc for Windows. In PhreeqcI you can simply cut in Excel and paste into the edit window and all the formatting should be ok. I think that works for PFW too. I don't know where you got the pe's, but with the iron and manganese concentrations, they are plausible. You are missing lots of analyses, but that's life. You may want to add a datablock to get saturation indices, similar to the following. It makes a table of the data that you can bring back into Excel. There is also a USER_PUNCH data block that lets you calculate quantities you want to go into the file. SELECTED_OUTPUT -file h:\questions\z.sel -reset false -solution -pH -si calcite dolomite CO2(g) I think you asked about plotting. I haven't used it a lot in PFW, but most of the PHREEQC examples in PFW have the USER_GRAPH keyword added. Here's the block from example 2. You should be able to use it as a template. You have to write a little basic program to put out the data that you want with the graph_x and graph_y commands. USER_GRAPH -headings Temperature SI(Gypsum) SI(Anhydrite) -chart_title "Example 2" -axis_scale x_axis 25 75 -axis_scale y_axis -0.3 0.1 -axis_titles "TEMPERATURE IN DEGREES CELSIUS" "SATURATION INDEX" -initial_solutions false -start 10 graph_x TC 20 graph_y SI("Gypsum") SI("Anhydrite") -end David David Parkhurst (dlpark@xxxxxxxx) U.S. Geological Survey Box 25046, MS 413 Denver Federal Center Denver, CO 80225
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