scholarly journals VESIcal Part I: An open-source thermodynamic model engine for mixed volatile (H2O-CO2) solubility in silicate melts

2020 ◽  
Author(s):  
Kayla Iacovino ◽  
Simon Matthews ◽  
Penny Wieser ◽  
Gordon Moore ◽  
Florence Bégué
Keyword(s):  
Open Source ◽  
Thermodynamic Model ◽  
Silicate Melts ◽  
Co2 Solubility ◽  
Model Engine

Raman spectroscopy to determine CO2 solubility in mafic silicate melts at high pressure: Haplobasaltic, haploandesitic and approach of basaltic compositions

2021 ◽  
pp. 120413
Author(s):  
Julien Amalberti ◽  
Philippe Sarda ◽  
Charles Le Losq ◽  
Nicolas Sator ◽  
Tahar Hammouda ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
High Pressure ◽  
Silicate Melts ◽  
Co2 Solubility

scholarly journals VESIcal Part II: A critical approach to volatile solubility modelling using an open-source Python3 engine

2021 ◽  
Author(s):  
Penny Wieser ◽  
Kayla Iacovino ◽  
Simon Matthews ◽  
Gordon Moore ◽  
Chelsea Allison
Keyword(s):  
Open Source ◽  
Melt Inclusions ◽  
Melt Inclusion ◽  
Volcanic Eruptions ◽  
Critical Approach ◽  
Co2 Solubility ◽  
Large Numbers ◽  
Plumbing Systems ◽  
Presentation Methods ◽  
Volatile Exsolution

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 paths followed by 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 the 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 behaviours 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 are required

scholarly journals A Thermodynamic Model for Hydrous Silicate Melts

1985 ◽  
Vol 93 (2) ◽  
pp. 161-177 ◽  
Author(s):  
Lynn Silver ◽  
Edward Stolper
Keyword(s):  
Thermodynamic Model ◽  
Silicate Melts ◽  
Hydrous Silicate
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