Articles | Volume 15, issue 10
https://doi.org/10.5194/se-15-1241-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-15-1241-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Method article
| 
07 Oct 2024
Method article |
| 07 Oct 2024
| 07 Oct 2024
ECOMAN: an open-source package for geodynamic and seismological modelling of mechanical anisotropy
Manuele Faccenda
CORRESPONDING AUTHOR
Dipartimento di Geoscienze, Università di Padova, 35131 Padua, Italy
Brandon P. VanderBeek
CORRESPONDING AUTHOR
Dipartimento di Geoscienze, Università di Padova, 35131 Padua, Italy
Albert de Montserrat
Institute of Geophysics, ETH Zürich, Sonneggstrasse 5, 8092 Zurich, Switzerland
Jianfeng Yang
State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Francesco Rappisi
School of Earth and Environment, University of Leeds, Leeds, UK
Neil Ribe
Lab FAST, Univ Paris-Saclay, CNRS, Bat 530, rue André Rivière, 91405 Orsay, France
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Subject area: Mantle and core structure and dynamics | Editorial team: Geodynamics and quantitative modelling | Discipline: Geodynamics
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Influence of heterogeneous thermal conductivity on the long-term evolution of the lower-mantle thermochemical structure: implications for primordial reservoirs
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Coupled dynamics and evolution of primordial and recycled heterogeneity in Earth's lower mantle
Comparing global seismic tomography models using varimax principal component analysis
Gwynfor T. Morgan, J. Huw Davies, Robert Myhill, and James Panton
Solid Earth, 16, 297–314, https://doi.org/10.5194/se-16-297-2025, https://doi.org/10.5194/se-16-297-2025, 2025
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Phase transitions can influence mantle convection, inhibiting or promoting vertical flow. We are motivated by two examples: the post-spinel reaction proceeding via akimotoite at cool temperatures and a curving post-garnet boundary. Some have suggested these could change mantle dynamics. We find this is unlikely for both reactions: the first due to the uniqueness of thermodynamic state and the second due to the low magnitude of the boundary’s slope in pressure–temperature space and density change.
Erik van der Wiel, Cedric Thieulot, and Douwe J. J. van Hinsbergen
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Fluids and melts in the mantle are key to the Earth’s evolution. The main driving force for their transport is the compaction of the porous mantle. Numerically, the compaction equations can yield unphysical negative liquid fractions (porosity), and it is necessary to enforce positive porosity. However, the effect of such a treatment on liquid flow and mass conservation has not been quantified. We found that although mass conservation is affected, the liquid pathways are well resolved.
Guoqiang Yan, Benjamin Busch, Robert Egert, Morteza Esmaeilpour, Kai Stricker, and Thomas Kohl
Solid Earth, 14, 293–310, https://doi.org/10.5194/se-14-293-2023, https://doi.org/10.5194/se-14-293-2023, 2023
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The physical processes leading to the kilometre-scale thermal anomaly in faulted tight sandstones are numerically investigated. The fluid-flow pathways, heat-transfer types and interactions among different convective and advective flow modes are systematically identified. The methodologies and results can be applied to interpret hydrothermal convection-related geological phenomena and to draw implications for future petroleum and geothermal exploration and exploitation in analogous settings.
Joshua Martin Guerrero, Frédéric Deschamps, Yang Li, Wen-Pin Hsieh, and Paul James Tackley
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Cedric Thieulot and Wolfgang Bangerth
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The lower mantle extends from 660–2890 km depth, making up > 50 % of the Earth’s volume. Its composition and structure, however, remain poorly understood. In this study, we investigate several hypotheses with computer simulations of mantle convection that include different materials: recycled, dense rocks and ancient, strong rocks. We propose a new integrated style of mantle convection including
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Short summary
The Earth's internal dynamics and structure can be well understood by combining seismological and geodynamic modelling with mineral physics, an approach that has been poorly adopted in the past. To this end we have developed ECOMAN, an open-source software package that is intended to overcome the computationally intensive nature of this multidisciplinary methodology and the lack of a dedicated and comprehensive computational framework.
The Earth's internal dynamics and structure can be well understood by combining seismological...
