气候变化领域集成服务门户(CCPortal): Integrated 3D geological modelling of the northern Upper Rhine Graben by joint inversion of gravimetry and magnetic data

CCPortal

DOI	10.1016/j.tecto.2021.228927
	Integrated 3D geological modelling of the northern Upper Rhine Graben by joint inversion of gravimetry and magnetic data
	Frey M.; Weinert S.; Bär K.; van der Vaart J.; Dezayes C.; Calcagno P.; Sass I.
发表日期	2021
ISSN	00401951
卷号	813
英文摘要	The crystalline basement of the Upper Rhine Graben is a major target for deep geothermal exploration due to the generally high reservoir temperatures and the increased radiogenic heat production. The geothermal potential is strongly dependent on the lithology because mainly the thermal but also the hydraulic properties are affected by the rock type. For this reason, the so far most detailed 3D model of the basement in the northern Upper Rhine Graben was developed based on existing structural models, in particular the Hesse 3D 2.0 and GeORG models. Since only a few boreholes fully penetrate the thick sediment cover, additional magnetic and gravity data provided valuable information on the geometry of the deep horizons. To interpret the Bouguer anomalies reasonably with respect to the crystalline basement, the regional gravity field and sedimentary effect were subtracted from the observed data. In comparison to the commonly applied deterministic modelling approaches, a stochastic joint inversion of the gravity and magnetic anomalies was performed that utilizes the principles of a Monte-Carlo-Markov-Chain simulation. For an appropriate attribution of the model units, existing petrophysical databases of the region have been used and in addition, the magnetic susceptibility of more than 430 rock samples was measured. High-resolution voxel models of the density and susceptibility distribution were generated as a result of the inversion, which allow conclusions about the crustal composition under the sedimentary formations. An interpretative map of the basement geology, derived from the inversion results, is presented. © 2021 Elsevier B.V.
关键词	3D modelling Gravity Joint inversion Magnetics Petrophysics Upper Rhine Graben
英文关键词	Buildings; Geothermal energy; Geothermal prospecting; Lithology; Magnetic susceptibility; Magnetism; Markov chains; Monte Carlo methods; Sedimentology; Stochastic systems; 3D geological modelling; Deterministic modelling; Geothermal exploration; Gravity and magnetic anomalies; Magnetic and gravity datum; Monte Carlo Markov chain; Radiogenic heat production; Reservoir temperatures; 3D modeling; geothermal system; gravity anomaly; magnetic anomaly; magnetic field; Markov chain; Monte Carlo analysis; petrology; three-dimensional modeling; Germany; Rhine Valley; Upper Rhine Valley
语种	英语
来源期刊	Tectonophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207974
作者单位	Technical University of Darmstadt, Institute of Applied Geosciences, Department of Geothermal Science and Technology, Schnittspahnstraße 9, Darmstadt, 64287, Germany; Darmstadt Graduate School of Excellence Energy Science and Engineering, Otto-Berndt-Straße 3, Darmstadt, 64287, Germany; BRGM, 3, avenue Claude Guillemin, BP36009, Orléans cedex, 45060, France
推荐引用方式 GB/T 7714	Frey M.,Weinert S.,Bär K.,et al. Integrated 3D geological modelling of the northern Upper Rhine Graben by joint inversion of gravimetry and magnetic data[J],2021,813.
APA	Frey M..,Weinert S..,Bär K..,van der Vaart J..,Dezayes C..,...&Sass I..(2021).Integrated 3D geological modelling of the northern Upper Rhine Graben by joint inversion of gravimetry and magnetic data.Tectonophysics,813.
MLA	Frey M.,et al."Integrated 3D geological modelling of the northern Upper Rhine Graben by joint inversion of gravimetry and magnetic data".Tectonophysics 813(2021).