New igneous x-eos: No more stable high-Ca opx

I’ve just issued an update to the igneous set of x-eos, involving tiny changes to the thermo of orthopyroxene (provided by Tim Holland). This should prevent high-Ca orthopyroxene from being stable, as has been seen in some calculations on peridotite. I’ll let Jamie Connolly know, so hopefully this change will shortly be implemented in Perple_X too.

Update Oct 2020: This did not solve the problem…. But hopefully the new update to the igneous set, dated 31-10-2020, will do.

Perple_X users!

Do you want to use the HPx-eos in Perple_X? Are you struggling to work out which combination of dataset files, solution models and make/exclusion statements to use? Jeff Moyen has constructed a handy spreadsheet and is kindly sharing it with the community.

Please note, neither Jeff nor I are guaranteeing this information, and correct use of Perple_X is still the user’s responsibility. Do read the notes in the solution_model.dat file!


Community information

To follow community news:

  • Join the discussion group.
  • Follow @hpxeos on Twitter.
  • Follow this WordPress blog by clicking the Follow button in the lower right hand corner of the page.

Upcoming events:

5-9 September 2022Understanding oxygen fugacity in geoscience: international schoolTrieste, Italy

Are you running a workshop on computational phase equilibrium modelling? Let us know and we can advertise it on this site.