TU Darmstadt / ULB / TUbiblio

The deep thermal field of the Upper Rhine Graben

Freymark, J. and Sippel, J. and Scheck-Wenderoth, M. and Bär, K. and Stiller, M. and Fritsche, J.-G. and Kracht, M. (2016):
The deep thermal field of the Upper Rhine Graben.
In: Tectonophysics, Elsevier, [Online-Edition: http://dx.doi.org/10.1016/j.tecto.2016.11.013],
[Article]

Abstract

The Upper Rhine Graben has a significant socioeconomic relevance as it provides a great potential for geothermal energy production. The key for the utilisation of this energy resource is to understand the controlling factors of the thermal field in this area. We have therefore built a data-based lithospheric-scale 3D structural model of the Upper Rhine Graben and its adjacent areas. In addition, 3D gravity modelling was performed to constrain the internal structure of the crystalline crust consistent with seismic information. Based on this lithosphere scale 3D structural model the present-day conductive thermal field was calculated and compared to measured temperatures. Our results show that the regional thermal field is mainly controlled by the configuration of the upper crust, which has different thermal properties for the Variscan and Alpine domains. Temperature maxima are predicted for the Upper Rhine Graben where thick insulating Cenozoic sediments cause a thermal blanketing effect and where the underlying crustal units are characterised by high radiogenic heat production. The comparison of calculated and measured temperatures shows a reasonable fit although local misfits indicate, as expected, an additional convective influence of fluid flow on the thermal field of the Upper Rhine Graben.

Item Type: Article
Erschienen: 2016
Creators: Freymark, J. and Sippel, J. and Scheck-Wenderoth, M. and Bär, K. and Stiller, M. and Fritsche, J.-G. and Kracht, M.
Title: The deep thermal field of the Upper Rhine Graben
Language: English
Abstract:

The Upper Rhine Graben has a significant socioeconomic relevance as it provides a great potential for geothermal energy production. The key for the utilisation of this energy resource is to understand the controlling factors of the thermal field in this area. We have therefore built a data-based lithospheric-scale 3D structural model of the Upper Rhine Graben and its adjacent areas. In addition, 3D gravity modelling was performed to constrain the internal structure of the crystalline crust consistent with seismic information. Based on this lithosphere scale 3D structural model the present-day conductive thermal field was calculated and compared to measured temperatures. Our results show that the regional thermal field is mainly controlled by the configuration of the upper crust, which has different thermal properties for the Variscan and Alpine domains. Temperature maxima are predicted for the Upper Rhine Graben where thick insulating Cenozoic sediments cause a thermal blanketing effect and where the underlying crustal units are characterised by high radiogenic heat production. The comparison of calculated and measured temperatures shows a reasonable fit although local misfits indicate, as expected, an additional convective influence of fluid flow on the thermal field of the Upper Rhine Graben.

Journal or Publication Title: Tectonophysics
Publisher: Elsevier
Divisions: 11 Department of Materials and Earth Sciences > Earth Science > Geothermal Science and Technology
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences
Date Deposited: 22 Nov 2016 09:47
Official URL: http://dx.doi.org/10.1016/j.tecto.2016.11.013
Alternative keywords:
Alternative keywordsLanguage
Upper Rhine Graben 3D structural model 3D gravity modelling 3D conductive thermal field Variscan domainsEnglish
Export:

Optionen (nur für Redakteure)

View Item View Item