Search found 4 matches

by dolejs
23 Apr 2021, 12:26
Forum: Installation and Operation
Topic: Read error for solution models with large multiplicities
Replies: 6
Views: 15070

Re: Read error for solution models with large multiplicities

Dear all, just to close the serpentine model off (response from Jamie Connolly): the sign discrepancy between the Navarta et al. 2013's paper and the Perplex code in the entropy definition of the Tschermak-antigorite has already been noticed by others, and the original model was calibrated as it is ...
by dolejs
23 Apr 2021, 07:38
Forum: Installation and Operation
Topic: Read error for solution models with large multiplicities
Replies: 6
Views: 15070

Re: Read error for solution models with large multiplicities

Dear Pierre & Blakelee, yes, Pierre is right, the sign convention is reversed. Checking the Gibbs energy values in both codes with +46.1 vs. -46.1 in the end-member definition shows that "make" in Perplex/Frendly uses G = ... + T * value, whereas the "ST" in Theriak uses G = ...
by dolejs
22 Apr 2021, 16:27
Forum: Installation and Operation
Topic: Read error for solution models with large multiplicities
Replies: 6
Views: 15070

Re: Read error for solution models with large multiplicities

Hi Pierre,

thanks for this useful and correct suggestion -- this of course solves the problem.

I have noticed in your definition of the Ts-antigorite a negative entropy (-46.1), are you sure that it should not be an opposite value (+46.1)?

Cheers,
David
by dolejs
22 Apr 2021, 15:18
Forum: Installation and Operation
Topic: Read error for solution models with large multiplicities
Replies: 6
Views: 15070

Read error for solution models with large multiplicities

Dear all, I have noticed that a solution model with very large site multiplicities are not correctly read and interpreted in Theriak. Here is an example - serpentine solid solution: !------------------------------ Serpentine -------------------------------------- ! Padron-Navarta et al. 2013 ***** M...