Articles | Volume 13, issue 6
https://doi.org/10.5194/se-13-1107-2022
https://doi.org/10.5194/se-13-1107-2022
Method article
 | 
29 Jun 2022
Method article |  | 29 Jun 2022

An efficient partial-differential-equation-based method to compute pressure boundary conditions in regional geodynamic models

Anthony Jourdon and Dave A. May

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Latest update: 22 May 2024
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Short summary
In this study we present a method to compute a reference pressure based on density structure in which we cast the problem in terms of a partial differential equation (PDE). We show in the context of 3D models of continental rifting that using the pressure as a boundary condition within the flow problem results in non-cylindrical velocity fields, producing strain localization in the lithosphere along large-scale strike-slip shear zones and allowing the formation and evolution of triple junctions.