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.
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!
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The HPx-eos and THERMOCALC 