top of page
Perple_X
Instruction on Constructing Pseudosections Using Perple_X
1. Where I can download the program package and What you need in the package?
2. How to install the program (step by step)? (Click to download PDF version)
3. Instruction on constructing pseudosections using Perple_X
-
P-T pseudosection construction procedure
-
Step by step instruction
-
Tips and key notes during peudosection construction
-
-
P-X pseudosection construction procedure
-
Pseudosection with mineral isopleths
-
Effective bulk composition (EBC) calculation
1. Where I can download the program package and What you need in the package?
Peprple_X package (Download)
You need two packages in your working folder:
Perple_X WINDOWS + data_files
1) Unzip the two downloaded folders
2) Copy all files in "data_files" into the Perple_X folder
3. Instruction on constructing P-T pseudosections using Perple_X
1) Open "build" in the Perple_X folder, and enter the name of the project.
2) Next step for entering the dataset file "hp02ver.dat", and then entering the setting file "perplex_option.dat".
Note: These are default dataset and setting files. If you have other specific requirements, you can find other dataset files in data_file. You can also change the setting. These default settings can satisfy most of the functions.
3) Next step is for asking if you need to transfer the oxides, for example, making a new name A=NA2O+K2O. Constructing pseudosection doesn't need to transfer oxides. So entering "N"
4) Specify computational mode. Entering "2" for pseudosection.
5) Specify water saturation or not, and which one/ones, "H2O","CO2" in the system. Entering "Y" if not specified, and then entering "H2O"
6) Calculations with saturated components (Y/N)? Entering "N", if you have XRF measured oxide content.
7) use chemical potentials, activities, or fugacities as independent
variables (Y/N)? normally, for P-T conditions, we only use P-T phase diagrams. So, entering "N" here.
8) This step is to enter the components. For example, you need to enter as below for NMASKCFTMnO component system.
9) Next step is to enter fluid equation of state. For the non-CO2 system, option "5" is enpugh for modeling purpose.
10) At this step, you need to enter the y-axis varible, and its range, for example, you need to enter "1" for pressure (bar), and then the pressure range, 17000 32000.
11) At this step, you need to enter the x-axis varible, and its range, for example, you need to enter "2" for temperature (K), and then the temperature range, 723 973 (or 450-700 C, the temperature here is in K unit)
12) At this step, you need to enter Y(CO2), in non-CO2 system, you need to enter "0".
13) At this step, you need to enter the unit of the components (oxides) you will enter. Y for weight/mass unit, and N for Mole unit.
14) At this step, you need to enter the values of the components (oxides) you will enter.
15) At this step, you will be asked if you want a print file. Normally entering "Y"
16) Next two steps, you need to enter if you want to exclude pure endmember phases (e.g., qtz, law), and entering the solution model file name. It's better not to exclude the pure phase at this step, and the default solution_model is enough for most people.
17) This step is to ask you to choose the solution you want to enter into your psuedosections. In this step and for this sample, we enter:
Bi(W)
Chl(W)
cAmph(G)
Omph(GHP)
Ep(HP11)
Gt(W)
Mica(W)
T
18) this step is to enter the name of this calculation. And now you finished building the "data" file
19) Go to the working folder, and open "vertex" file (.exe)
20) After you enter the project name, the "vertex" app will run, and the time it will take depends on the solution models and the compositions you entered.
1) Open "build" in the Perple_X folder, and enter the name of the project.
21) This the last step for generating pseudosection. At this step, you need to open the "pssect". exe, and enter the project name "tm-15".
22) Using an image software to open the generated"tm-15.svg" file, and you can see the pseudosection. YOu can also use Illustrator (or other image processing program) to make it looks better.
bottom of page