Preprints
https://doi.org/10.5194/egusphere-2024-308
https://doi.org/10.5194/egusphere-2024-308
08 Feb 2024
 | 08 Feb 2024
Status: this preprint is open for discussion.

Modelling transient thermal processes in the lithosphere: application to the NW Pannonian basin

Eszter Békési, Jan-Diederik van Wees, Kristóf Porkoláb, Mátyás Hencz, and Márta Berkesi

Abstract. The reconstruction of thermal evolution in sedimentary basins is a key input for constraining geodynamic processes and geo-energy resource potential. We present a methodology to reproduce the most important transient thermal footprints accompanying basin formation: lithosphere extension and sedimentation. The forward model is extended with data assimilation to constrain models with temperature measurements. We apply the methodology to the NW part of Hungary. Realistic past- and present-day temperature predictions for the entire lithosphere are achieved, suggesting the relatively uniform, but strong attenuation of the mantle lithosphere through extension, and relatively small variations in the present-day thermal lithosphere thickness. The new temperature model allows an improved estimation of lithosphere rheology and the interpretation of mantle xenolith origins.

Eszter Békési, Jan-Diederik van Wees, Kristóf Porkoláb, Mátyás Hencz, and Márta Berkesi

Status: open (until 26 Mar 2024)

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  • CC1: 'Comment on egusphere-2024-308', Giacomo Medici, 13 Feb 2024 reply
Eszter Békési, Jan-Diederik van Wees, Kristóf Porkoláb, Mátyás Hencz, and Márta Berkesi
Eszter Békési, Jan-Diederik van Wees, Kristóf Porkoláb, Mátyás Hencz, and Márta Berkesi

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Short summary
We present a workflow to model the temperature distribution within the lithosphere of sedimentary basins and apply it to NW Hungary. The model can reproduce the thermal evolution through basin formation, making use of temperature measurements from wells. Models provide key input to constrain geodynamic processes and geo-energy resource potential.