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Preprints
https://doi.org/10.31223/X56971
https://doi.org/10.31223/X56971
12 Dec 2023
 | 12 Dec 2023

Quantifying mantle mixing through configurational Entropy

Erik van der Wiel, Cedric Thieulot, and Douwe van Hinsbergen

Abstract. Geodynamic models of mantle convection provide a powerful tool to obtain insights into the structure and composition of the Earth’s mantle that resulted from a long history of differentiating and mixing. Comparing such models with geophysical and geochemical observations is challenging as these datasets often sample entirely different temporal and spatial scales. Here, we explore the use of configurational entropy, based on tracer and compositional distribution on a global and local scale. We show means to calculate configurational entropy in a 2D annulus and find that these calculations may be used to quantitatively compare long-term geodynamic models with each other. The entropy may be used to analyze, with a single measure, the mixed state of the mantle as a whole and may also be useful to validate numerical models against local anomalies in the mantle that may be inferred from seismological or geochemical observations.

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Journal article(s) based on this preprint

19 Jul 2024
Quantifying mantle mixing through configurational entropy
Erik van der Wiel, Cedric Thieulot, and Douwe J. J. van Hinsbergen
Solid Earth, 15, 861–875, https://doi.org/10.5194/se-15-861-2024,https://doi.org/10.5194/se-15-861-2024, 2024
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The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.

Short summary
Geodynamic models of mantle convection provide a powerful tool to study the structure and...
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