VESIcal: 2. A Critical Approach to Volatile Solubility Modeling Using an Open-Source Python3 Engine
Publication Date
2022Journal Title
Earth and Space Science
ISSN
2333-5084
Publisher
American Geophysical Union (AGU)
Volume
9
Issue
2
Language
en
Type
Article
This Version
AO
VoR
Metadata
Show full item recordCitation
Wieser, P., Iacovino, K., Matthews, S., Moore, G., & Allison, C. (2022). VESIcal: 2. A Critical Approach to Volatile Solubility Modeling Using an Open-Source Python3 Engine. Earth and Space Science, 9 (2) https://doi.org/10.1029/2021EA001932
Abstract
Abstract: Accurate models of H2O and CO2 solubility in silicate melts are vital for understanding volcanic plumbing systems. These models are used to estimate the depths of magma storage regions from melt inclusion volatile contents, investigate the role of volatile exsolution as a driver of volcanic eruptions, and track the degassing path followed by a magma ascending to the surface. However, despite the large increase in the number of experimental constraints over the last two decades, many recent studies still utilize an earlier generation of models which were calibrated on experimental datasets with restricted compositional ranges. This may be because many of the available tools for more recent models require large numbers of input parameters to be hand‐typed (e.g., temperature, concentrations of H2O, CO2, and 8–14 oxides), making them difficult to implement on large datasets. Here, we use a new open‐source Python3 tool, VESIcal, to critically evaluate the behaviors and sensitivities of different solubility models for a range of melt compositions. Using literature datasets of andesitic‐dacitic experimental products and melt inclusions as case studies, we illustrate the importance of evaluating the calibration dataset of each model. Finally, we highlight the limitations of particular data presentation methods, such as isobar diagrams, and provide suggestions for alternatives, and best practices regarding the presentation and archiving of data. This review will aid the selection of the most applicable solubility model for different melt compositions, and identifies areas where additional experimental constraints on volatile solubility are required.
Keywords
CRYOSPHERE, Thermodynamics, GEOCHEMISTRY, Magma chamber processes, Alteration and weathering processes, Reactions and phase equilibria, MINERALOGY AND PETROLOGY, VOLCANOLOGY, Review Article, igneous petrology, volatile solubility, melt inclusions, open‐source, Python3, magmatic systems
Sponsorship
NERC (NE/L002507/1)
Identifiers
ess21063, 2021ea001932
External DOI: https://doi.org/10.1029/2021EA001932
This record's URL: https://www.repository.cam.ac.uk/handle/1810/334437
Rights
Licence:
http://creativecommons.org/licenses/by/4.0/
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