Integrated 3D geological modelling of the northern Upper Rhine Graben by joint inversion of gravimetry and magnetic data

Structural Architecture and Permeability Patterns of Crystalline Reservoir Rocks in the Northern Upper Rhine Graben: Insights from Surface Analogues of the Odenwald

“…The STZ comprises a Neoproterozoic gneiss basement [19,54]. This basement is overlain by low-grade metamorphised sedimentary and volcanic rocks deposited in a Cambrian-Devonian rift basin [3,19,55].…”

“…Geothermal energy and thermal energy storage are essential components of the balance required to ensure decarbonated energy supply by 2050. The Upper Rhine Graben (URG) is a targeted area for deep geothermal and heat storage projects since petrophysical rock properties of the faulted crystalline basement and the temperature field offer a high potential in the area [1][2][3][4][5]. Geothermal anomalies are not distributed homogeneously in the URG and are linked to lithological and structural changes [6,7].…”

“…The petrophysical and geo-mechanical behaviour of crystalline rocks has been investigated in numerous studies at the sample scale in laboratory conditions [17,18]. Significant structures and lithological boundaries within the basement have Energies 2022, 15, 1310 2 of 30 been determined and modelled by geophysical methods [3,19,20]. Possible architectures of the fracture network and some conceptual models also exist [14,[21][22][23].…”

Comment on se-2021-118

“…The commercial platform GeoModeller was used for this purpose, which employes a Monte-Carlo Markov-Chain algorithm to invert geophysical data. A detailed discussion of the methodology is available in previous studies (Guillen et al, 2008;Frey et al, 2021a;Frey and Ebbing, 2020). The model domain has an extension of 7 km in E-W and 6 km in N-S direction and a depth of 2 km, approximately corresponding to the maximum depth that can be rsolved by the filtered gravity data.…”

“…1). This highly fractured granitic pluton is relatively homogenous with respect to lithology and representative for the predominantly granitoid basement in the northern URG (Frey et al, 2021a). The Tromm Granite is furthermore a promising site for the geothermal underground research laboratory (GeoLaB), where thermal-hydraulic-mechanical-chemical processes of deep geothermal reservoirs will be investigated in the future under in situ conditions to minimize the risk of future enhanced geothermal systems (Meller et al, 2018).…”