This website is the online home of the HPx-eos. The HPx-eos are thermodynamic models for minerals and geological fluids, which can be used to calculate equilibrium phase assemblages in the Earth’s crust and upper mantle. The HPx-eos, and our in-house calculation software, THERMOCALC, are developed by an international team of Earth scientists, and are freely available for use in academic research.
What can I learn from this website?
This is the place to look if you want to know more about:
- how calculated equilibrium phase relations can be applied to geological problems.
- how the HPx-eos work, and technical details of their implementation – you might use them through MAGEMin (our favourite G-minimizer, closely linked with HPx-eos development), Perple_X, XMapTools, ENKI, or be developing your own program.
- how to use the HPx-eos via our in-house phase equilibrium calculation software, THERMOCALC.
Quick links:
- download our models and software
- see our phase equilibrium resource hub, including links to user groups and forums
- visit our blog, containing news about developments to the HPx-eos and THERMOCALC.
Can’t find what you’re looking for? Inform the webmaster.
Please note. This site replaces the website THERMOCALC, which was kindly hosted by the University of Mainz (no longer available as of November 2019). The software THERMOCALC is the intellectual property of Roger Powell and Tim Holland (Powell & Holland, 1988). It was originally developed by Roger Powell during his PhD in the 1970s, and is unrelated to the more recently launched commercial software, Thermo-Calc.
Acknowledgements. We are grateful to our many collaborators and users of our models and software, who share their experiences with us and alert us to problems. Erin Matchan and Jamie Connolly are owed thanks for their advice about website and forum management. We thank the University of Melbourne in particular for its long-standing support for our work.
The HPx-eos and THERMOCALC 