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Abstract
VolFe is an open-source flexible and adaptable thermodynamic framework in Python for calculating the equilibrium composition of melt and vapor. VolFe considers basaltic through rhyolitic melts including the volatiles carbon, hydrogen, sulfur, and noble gases. VolFe models both reduced and oxidised systems due to the range of melt and vapor species included. Hence, VolFe is applicable to terrestrial (e.g., mid-ocean ridges to arcs) and extra-terrestrial (e.g., the Moon and Mars) systems. New parameterisations of “model-dependent variables” (e.g., volatile solubility functions, sulfide-saturation conditions, fugacity coefficients, etc.) can be added as new experimental studies come out, enhancing VolFe’s future applicability. The main calculations currently included in VolFe are the pressure of vapor-saturation based on the dissolved volatile content of melts; open- and closed-system degassing and regassing; and an oxybarometer based on the melt sulfur content. As an example, we apply VolFe to melt inclusion and matrix glass data from the Marianas arc.
DOI
https://doi.org/10.31223/X52X3G
Subjects
Physical Sciences and Mathematics
Keywords
volatiles, thermodynamic, , degassing, open-source, melt, vapor, degassing, Open-source, Melt, vapor
Dates
Published: 2024-09-25 09:58
License
CC-BY Attribution-NonCommercial 4.0 International
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Conflict of interest statement:
None.
Data Availability (Reason not available):
N/A
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