DensityX: A program for calculating the densities of magmatic liquids up to 1,627 °C and 30 kbar

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Kayla Iacovino Christy B Till

Abstract

Here we present a standalone program, DensityX, to calculate the densities of hydrous silicate melts (1,000s of samples in a single model run) given pressures, temperatures, and major oxide compositions in wt% in the 10-component system SiO2-TiO2-Al2O3-Fe2O3-FeO-MgO-CaO-Na2O-K2O-H2O. Here we use DensityX to analyze over 3,000 melt inclusions over a wide compositional range to visualize the distribution of natural silicate liquid densities in the Earth’s crust. The program is open-source, written in Python, and can be accessed and run via an online interface through a web browser at https://densityx.herokuapp.com or by downloading and running the code from a github repository. A companion Excel spreadsheet can also be used to run density calculations identical to those in the Python script but only for one sample at a time. In another example application, we demonstrate how DensityX can be used to constrain density-driven convective cycling in the phonolitic lava lake of Erebus volcano, Antarctica.

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How to Cite
Iacovino, K. and Till, C. (2019) “DensityX: A program for calculating the densities of magmatic liquids up to 1,627 °C and 30 kbar”, Volcanica, 2(1), pp. 1-10. doi: https://doi.org/10.30909/vol.02.01.0110.
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