TU Darmstadt / ULB / TUbiblio

Heterogeneous crystalline crust controls the shallow thermal field – a case study of Hessen (Germany)

Freymark, J. and Sippel, J. and Scheck-Wenderoth, M. and Bär, K. and Stiller, M. and Kracht, M. and Fritsche, J.-G. (2015):
Heterogeneous crystalline crust controls the shallow thermal field – a case study of Hessen (Germany).
In: Energy Procedia, 76 (August 2015), pp. 331-340. Elsevier ScienceDirect, ISSN 18766102,
DOI: 10.1016/j.egypro.2015.07.837,
[Article]

Abstract

We present a seismic- and 3D-gravity-constrained lithospheric-scale 3D structural model of Hessen that differentiates 7 sedimentary units, 5 Variscan upper crustal bodies, the lower crystalline crust and the lithospheric mantle. To predict the presentday subsurface temperatures, we solve the steady-state conductive heat equation by using a 3D FE method and assigning lithology-dependent thermal properties. We show that the thermal field is mainly controlled by the varying radiogenic heat production in the crystalline crust, which results in a colder NW and a warmer SE domain. Locally, this regional trend is superimposed by thermal blanketing of low-conductive sediments leading to higher temperatures.

Item Type: Article
Erschienen: 2015
Creators: Freymark, J. and Sippel, J. and Scheck-Wenderoth, M. and Bär, K. and Stiller, M. and Kracht, M. and Fritsche, J.-G.
Title: Heterogeneous crystalline crust controls the shallow thermal field – a case study of Hessen (Germany)
Language: English
Abstract:

We present a seismic- and 3D-gravity-constrained lithospheric-scale 3D structural model of Hessen that differentiates 7 sedimentary units, 5 Variscan upper crustal bodies, the lower crystalline crust and the lithospheric mantle. To predict the presentday subsurface temperatures, we solve the steady-state conductive heat equation by using a 3D FE method and assigning lithology-dependent thermal properties. We show that the thermal field is mainly controlled by the varying radiogenic heat production in the crystalline crust, which results in a colder NW and a warmer SE domain. Locally, this regional trend is superimposed by thermal blanketing of low-conductive sediments leading to higher temperatures.

Journal or Publication Title: Energy Procedia
Journal volume: 76
Number: August 2015
Publisher: Elsevier ScienceDirect
Uncontrolled Keywords: Upper Rhine Graben; structural model; gravity modelling; conductive thermal model; Variscan domains
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Earth Science > Geothermal Science and Technology
Date Deposited: 06 Nov 2015 15:45
DOI: 10.1016/j.egypro.2015.07.837
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details