Jump to content
Geochemist's Workbench Support Forum

The illite/smectite/kaolinite stability diagrams (Garrels 1984)

Recommended Posts

Hi, this is Jeonghwan Hwang.

I want to make a phase diagram of illite/smectite/kaolinite stability diagrams that was adapted from Garrels, 1984

I made almost similar figure with it, but i could not make illite and montmorillonite in it... (Galles.ac2)

I used other thermo data, V8R6+ (Galles-1.ac2), but it could not solve, neither. 

Are there any technical method to make it?

Thank you


Sincerely, Jeonghwan Hwang.






Link to comment
Share on other sites

Hello Jeonghwan,

Here are a couple of suggestions to get you started. You might want to consider checking the equilibrium constants (Log Ks) in the existing database for the minerals of interest against the values used in the Garrels 1984 publication. To do so, use the TEdit app to open the database, in your case it would thermo.com.V8.R6+.tdat, and check the Log K values corresponding to each mineral. You can simply edit the thermo dataset in TEdit to match the values used in literature or make a duplicate to preserve the original values. After you have checked the equilibrium constants in the database, you might also want to try suppressing all minerals except for the ones in the targeted activity diagram so that less stable phases are considered.

Hope this helps.


Jia Wang

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...