Articles | Volume 8, issue 1
https://doi.org/10.5194/se-8-45-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/se-8-45-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
16 Jan 2017
Research article |
| 16 Jan 2017
The Kenya rift revisited: insights into lithospheric strength through data-driven 3-D gravity and thermal modelling
GFZ German Research Centre for Geosciences, Sections 6.1 & 2.2,
Telegrafenberg, 14473 Potsdam, Germany
Christian Meeßen
GFZ German Research Centre for Geosciences, Sections 6.1 & 2.2,
Telegrafenberg, 14473 Potsdam, Germany
Institute of Earth and Environmental Science, University of Potsdam,
14476 Potsdam, Germany
Mauro Cacace
GFZ German Research Centre for Geosciences, Sections 6.1 & 2.2,
Telegrafenberg, 14473 Potsdam, Germany
James Mechie
GFZ German Research Centre for Geosciences, Sections 6.1 & 2.2,
Telegrafenberg, 14473 Potsdam, Germany
Stewart Fishwick
Department of Geology, University of Leicester, Leicester, LE1 7RH, UK
Christian Heine
New Ventures, Upstream International, Shell International Exploration
& Production B.V., 2596 HR, The Hague, the Netherlands
Magdalena Scheck-Wenderoth
GFZ German Research Centre for Geosciences, Sections 6.1 & 2.2,
Telegrafenberg, 14473 Potsdam, Germany
Manfred R. Strecker
Institute of Earth and Environmental Science, University of Potsdam,
14476 Potsdam, Germany
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Kristian Bär, Thomas Reinsch, and Judith Bott
Earth Syst. Sci. Data, 12, 2485–2515, https://doi.org/10.5194/essd-12-2485-2020, https://doi.org/10.5194/essd-12-2485-2020, 2020
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Petrophysical properties are key to populating numerical models of subsurface process simulations and the interpretation of many geophysical exploration methods. The P3 database presented here aims at providing easily accessible, peer-reviewed information on physical rock properties in one single compilation. The uniqueness of P3 emerges from its coverage and metadata structure. Each measured value is complemented by the corresponding location, petrography, stratigraphy and original reference.
Denis Anikiev, Adrian Lechel, Maria Laura Gomez Dacal, Judith Bott, Mauro Cacace, and Magdalena Scheck-Wenderoth
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We have developed a first Germany-wide 3D data-based density and temperature model integrating geoscientific observations and physical processes. The model can serve as a reference for local detailed studies dealing with temperature, pressure, stress, subsidence and sedimentation. Our results help to improve subsurface utilization concepts, reveal current geomechanical conditions crucial for hazard assessment and gather information on viable resources such groundwater and deep geothermal energy.
Nora Koltzer, Magdalena Scheck-Wenderoth, Mauro Cacace, Maximilian Frick, and Judith Bott
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In this study we investigate groundwater flow in the deep subsurface of the Upper Rhine Graben. We make use of a 3-D numerical model covering the entire Upper Rhine Graben. The deep hydrodynamics are characterized by fluid flow from the graben flanks towards its center and in the southern half of the graben from south to north. Moreover, local heterogeneities in the shallow flow field arise from the interaction between regional groundwater flow and the heterogeneous sedimentary configuration.
Ershad Gholamrezaie, Magdalena Scheck-Wenderoth, Judith Bott, Oliver Heidbach, and Manfred R. Strecker
Solid Earth, 10, 785–807, https://doi.org/10.5194/se-10-785-2019, https://doi.org/10.5194/se-10-785-2019, 2019
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Based on geophysical data integration and 3-D gravity modeling, we show that significant density heterogeneities are expressed as two large high-density bodies in the crust below the Sea of Marmara. The location of these bodies correlates spatially with the bends of the main Marmara fault, indicating that rheological contrasts in the crust may influence the fault kinematics. Our findings may have implications for seismic hazard and risk assessments in the Marmara region.
Ershad Gholamrezaie, Magdalena Scheck-Wenderoth, Judith Sippel, and Manfred R. Strecker
Solid Earth, 9, 139–158, https://doi.org/10.5194/se-9-139-2018, https://doi.org/10.5194/se-9-139-2018, 2018
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We examined the thermal gradient as an index of the thermal field in the Atlantic. While the thermal anomaly in the South Atlantic should be equilibrated, the thermal disturbance in the North Atlantic causes thermal effects in the present day. Characteristics of the lithosphere ultimately determine the thermal field. The thermal gradient nonlinearly decreases with depth and varies significantly both laterally and with time, which has implications for methods of thermal history reconstruction.
P. Klitzke, J. I. Faleide, M. Scheck-Wenderoth, and J. Sippel
Solid Earth, 6, 153–172, https://doi.org/10.5194/se-6-153-2015, https://doi.org/10.5194/se-6-153-2015, 2015
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We introduce a regional 3-D structural model of the Barents Sea and Kara Sea region which is the first to combine information on five sedimentary units and the crystalline crust as well as the configuration of the lithospheric mantle. By relating the shallow and deep structures for certain tectonic subdomains, we shed new light on possible causative basin-forming mechanisms that we discuss.
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Adv. Geosci., 65, 117–125, https://doi.org/10.5194/adgeo-65-117-2025, https://doi.org/10.5194/adgeo-65-117-2025, 2025
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Adv. Geosci., 65, 103–111, https://doi.org/10.5194/adgeo-65-103-2024, https://doi.org/10.5194/adgeo-65-103-2024, 2024
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Concepts of High-Temperature Aquifer Thermal Energy Storage (HT-ATES) are investigated for system application in the German Molasse Basin. We quantify via physics-based numerical modelling the system performance with respect to HT-ATES concept development and provide a predictive analysis of HT-ATES application in the Upper Jurassic reservoir. Results demonstrate a non-uniform layer-specific distribution of the thermal front propagation, while promising heat recovery efficiencies are predicted.
Peter Haas, Myron F. H. Thomas, Christian Heine, Jörg Ebbing, Andrey Seregin, and Jimmy van Itterbeeck
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Ángela María Gómez-García, Álvaro González, Mauro Cacace, Magdalena Scheck-Wenderoth, and Gaspar Monsalve
Solid Earth, 15, 281–303, https://doi.org/10.5194/se-15-281-2024, https://doi.org/10.5194/se-15-281-2024, 2024
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Denise Degen, Cameron Spooner, Magdalena Scheck-Wenderoth, and Mauro Cacace
Geosci. Model Dev., 14, 7133–7153, https://doi.org/10.5194/gmd-14-7133-2021, https://doi.org/10.5194/gmd-14-7133-2021, 2021
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In times of worldwide energy transitions, an understanding of the subsurface is increasingly important to provide renewable energy sources such as geothermal energy. To validate our understanding of the subsurface we require data. However, the data are usually not distributed equally and introduce a potential misinterpretation of the subsurface. Therefore, in this study we investigate the influence of measurements on temperature distribution in the European Alps.
Steffen Ahlers, Andreas Henk, Tobias Hergert, Karsten Reiter, Birgit Müller, Luisa Röckel, Oliver Heidbach, Sophia Morawietz, Magdalena Scheck-Wenderoth, and Denis Anikiev
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Steffen Ahlers, Andreas Henk, Tobias Hergert, Karsten Reiter, Birgit Müller, Luisa Röckel, Oliver Heidbach, Sophia Morawietz, Magdalena Scheck-Wenderoth, and Denis Anikiev
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Denise Degen and Mauro Cacace
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Ángela María Gómez-García, Eline Le Breton, Magdalena Scheck-Wenderoth, Gaspar Monsalve, and Denis Anikiev
Solid Earth, 12, 275–298, https://doi.org/10.5194/se-12-275-2021, https://doi.org/10.5194/se-12-275-2021, 2021
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The Earth’s crust beneath the Caribbean Sea formed at about 90 Ma due to large magmatic activity of a mantle plume, which brought molten material up from the deep Earth. By integrating diverse geophysical datasets, we image for the first time two fossil magmatic conduits beneath the Caribbean. The location of these conduits at 90 Ma does not correspond with the present-day Galápagos plume. Either this mantle plume migrated in time or these conduits were formed above another unknown plume.
Cameron Spooner, Magdalena Scheck-Wenderoth, Mauro Cacace, and Denis Anikiev
Solid Earth Discuss., https://doi.org/10.5194/se-2020-202, https://doi.org/10.5194/se-2020-202, 2020
Revised manuscript not accepted
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By comparing long term lithospheric strength to seismicity patterns across the Alpine region, we show that most seismicity occurs where strengths are highest within the crust. The lower crust appears largely aseismic due to energy being dissipated by ongoing creep from low viscosities. Lithospheric structure appears to exert a primary control on seismicity distribution, with both forelands display a different distribution patterns, likely reflecting their different tectonic settings.
Kristian Bär, Thomas Reinsch, and Judith Bott
Earth Syst. Sci. Data, 12, 2485–2515, https://doi.org/10.5194/essd-12-2485-2020, https://doi.org/10.5194/essd-12-2485-2020, 2020
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Petrophysical properties are key to populating numerical models of subsurface process simulations and the interpretation of many geophysical exploration methods. The P3 database presented here aims at providing easily accessible, peer-reviewed information on physical rock properties in one single compilation. The uniqueness of P3 emerges from its coverage and metadata structure. Each measured value is complemented by the corresponding location, petrography, stratigraphy and original reference.
Denis Anikiev, Adrian Lechel, Maria Laura Gomez Dacal, Judith Bott, Mauro Cacace, and Magdalena Scheck-Wenderoth
Adv. Geosci., 49, 225–234, https://doi.org/10.5194/adgeo-49-225-2019, https://doi.org/10.5194/adgeo-49-225-2019, 2019
Short summary
Short summary
We have developed a first Germany-wide 3D data-based density and temperature model integrating geoscientific observations and physical processes. The model can serve as a reference for local detailed studies dealing with temperature, pressure, stress, subsidence and sedimentation. Our results help to improve subsurface utilization concepts, reveal current geomechanical conditions crucial for hazard assessment and gather information on viable resources such groundwater and deep geothermal energy.
Cameron Spooner, Magdalena Scheck-Wenderoth, Hans-Jürgen Götze, Jörg Ebbing, György Hetényi, and the AlpArray Working Group
Solid Earth, 10, 2073–2088, https://doi.org/10.5194/se-10-2073-2019, https://doi.org/10.5194/se-10-2073-2019, 2019
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By utilising both the observed gravity field of the Alps and their forelands and indications from deep seismic surveys, we were able to produce a 3-D structural model of the region that indicates the distribution of densities within the lithosphere. We found that the present-day Adriatic crust is both thinner and denser than the European crust and that the properties of Alpine crust are strongly linked to their provenance.
Nora Koltzer, Magdalena Scheck-Wenderoth, Mauro Cacace, Maximilian Frick, and Judith Bott
Adv. Geosci., 49, 197–206, https://doi.org/10.5194/adgeo-49-197-2019, https://doi.org/10.5194/adgeo-49-197-2019, 2019
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In this study we investigate groundwater flow in the deep subsurface of the Upper Rhine Graben. We make use of a 3-D numerical model covering the entire Upper Rhine Graben. The deep hydrodynamics are characterized by fluid flow from the graben flanks towards its center and in the southern half of the graben from south to north. Moreover, local heterogeneities in the shallow flow field arise from the interaction between regional groundwater flow and the heterogeneous sedimentary configuration.
Guido Blöcher, Christian Kluge, Harald Milsch, Mauro Cacace, Antoine B. Jacquey, and Jean Schmittbuhl
Adv. Geosci., 49, 95–104, https://doi.org/10.5194/adgeo-49-95-2019, https://doi.org/10.5194/adgeo-49-95-2019, 2019
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The focus of the paper is to evaluate the permeability change of a matrix-fracture systems under mechanical loading und to understand the processes behind. This evaluation is based on data from laboratory experiments in comparison to 3-D numerical modelling results.
Maximilian Frick, Magdalena Scheck-Wenderoth, Mauro Cacace, and Michael Schneider
Adv. Geosci., 49, 9–18, https://doi.org/10.5194/adgeo-49-9-2019, https://doi.org/10.5194/adgeo-49-9-2019, 2019
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The study presented in this paper aims at reproducing findings from chemical and isotopic groundwater sample analysis along with quantifying the influence of regional (cross-boundary) flow for the area of Berlin, Germany. For this purpose we built 3-D models of the subsurface, populating them with material parameters (e.g. porosity, permeability) and solving them for coupled fluid and heat transport. Special focus was given to the setup of boundary conditions, i.e. fixed pressure at the sides.
Ershad Gholamrezaie, Magdalena Scheck-Wenderoth, Judith Bott, Oliver Heidbach, and Manfred R. Strecker
Solid Earth, 10, 785–807, https://doi.org/10.5194/se-10-785-2019, https://doi.org/10.5194/se-10-785-2019, 2019
Short summary
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Based on geophysical data integration and 3-D gravity modeling, we show that significant density heterogeneities are expressed as two large high-density bodies in the crust below the Sea of Marmara. The location of these bodies correlates spatially with the bends of the main Marmara fault, indicating that rheological contrasts in the crust may influence the fault kinematics. Our findings may have implications for seismic hazard and risk assessments in the Marmara region.
Elisabeth Peters, Guido Blöcher, Saeed Salimzadeh, Paul J. P. Egberts, and Mauro Cacace
Adv. Geosci., 45, 209–215, https://doi.org/10.5194/adgeo-45-209-2018, https://doi.org/10.5194/adgeo-45-209-2018, 2018
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Accuracy of well inflow modelling in different numerical simulation approaches was compared for a multi-lateral well with laterals of varying diameter. For homogeneous cases, all simulators generally were reasonably close in terms of the total well flow (deviations smaller than 4 %). The distribution of the flow over the different laterals in a well can vary significantly between simulators (> 20 %). In a heterogeneous case with a fault the deviations between the approaches were much larger.
Nasrin Haacke, Maximilian Frick, Magdalena Scheck-Wenderoth, Michael Schneider, and Mauro Cacace
Adv. Geosci., 45, 177–184, https://doi.org/10.5194/adgeo-45-177-2018, https://doi.org/10.5194/adgeo-45-177-2018, 2018
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The main goal of this study was to understand how different realizations of the impact of groundwater pumping activities in a major urban center would affect the results of 3-D numerical models. In detail we looked at two model scenarios which both rely on the same geological structural model but differ in the realization of the groundwater boundary conditions. The results show, that it is necessary to use groundwater wells as an active parameter to reproduce local movement patterns.
Ershad Gholamrezaie, Magdalena Scheck-Wenderoth, Judith Sippel, and Manfred R. Strecker
Solid Earth, 9, 139–158, https://doi.org/10.5194/se-9-139-2018, https://doi.org/10.5194/se-9-139-2018, 2018
Short summary
Short summary
We examined the thermal gradient as an index of the thermal field in the Atlantic. While the thermal anomaly in the South Atlantic should be equilibrated, the thermal disturbance in the North Atlantic causes thermal effects in the present day. Characteristics of the lithosphere ultimately determine the thermal field. The thermal gradient nonlinearly decreases with depth and varies significantly both laterally and with time, which has implications for methods of thermal history reconstruction.
Mauro Cacace and Antoine B. Jacquey
Solid Earth, 8, 921–941, https://doi.org/10.5194/se-8-921-2017, https://doi.org/10.5194/se-8-921-2017, 2017
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The paper describes theory and numerical implementation for coupled thermo–hydraulic–mechanical processes focusing on reservoir (mainly related to geothermal energy) applications.
Michael Rubey, Sascha Brune, Christian Heine, D. Rhodri Davies, Simon E. Williams, and R. Dietmar Müller
Solid Earth, 8, 899–919, https://doi.org/10.5194/se-8-899-2017, https://doi.org/10.5194/se-8-899-2017, 2017
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Earth's surface is constantly warped up and down by the convecting mantle. Here we derive geodynamic rules for this so-called
dynamic topographyby employing high-resolution numerical models of global mantle convection. We define four types of dynamic topography history that are primarily controlled by the ever-changing pattern of Earth's subduction zones. Our models provide a predictive quantitative framework linking mantle convection with plate tectonics and sedimentary basin evolution.
Moritz O. Ziegler, Oliver Heidbach, John Reinecker, Anna M. Przybycin, and Magdalena Scheck-Wenderoth
Solid Earth, 7, 1365–1382, https://doi.org/10.5194/se-7-1365-2016, https://doi.org/10.5194/se-7-1365-2016, 2016
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Subsurface engineering relies on sparsely distributed data points of the stress state of the earth's crust. 3D geomechanical--numerical modelling is applied to estimate the stress state in the entire volume of a large area. We present a multi-stage approach of differently sized models which provide the stress state in an area of interest derived from few and widely scattered data records. Furthermore we demonstrate the changes in reliability of the model depending on different input parameters.
R. Kind, X. Yuan, J. Mechie, and F. Sodoudi
Solid Earth, 6, 957–970, https://doi.org/10.5194/se-6-957-2015, https://doi.org/10.5194/se-6-957-2015, 2015
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We observed with seismic data the lithosphere–asthenosphere boundary (LAB) in the western United States and the mid-lithospheric discontinuity (MLD) in the central United States. In the northern and southern United States, the western LAB (probably of the Farallon plate) is weakly east dipping. There are indications of a west-dipping MLD in between. We interpret this interfingering structure of the mantle lithosphere as a result of the collision of the Farallon and the Laurentia plates.
P. Klitzke, J. I. Faleide, M. Scheck-Wenderoth, and J. Sippel
Solid Earth, 6, 153–172, https://doi.org/10.5194/se-6-153-2015, https://doi.org/10.5194/se-6-153-2015, 2015
Short summary
Short summary
We introduce a regional 3-D structural model of the Barents Sea and Kara Sea region which is the first to combine information on five sedimentary units and the crystalline crust as well as the configuration of the lithospheric mantle. By relating the shallow and deep structures for certain tectonic subdomains, we shed new light on possible causative basin-forming mechanisms that we discuss.
Y. Cherubini, M. Cacace, M. Scheck-Wenderoth, and V. Noack
Geoth. Energ. Sci., 2, 1–20, https://doi.org/10.5194/gtes-2-1-2014, https://doi.org/10.5194/gtes-2-1-2014, 2014
C. Heine, J. Zoethout, and R. D. Müller
Solid Earth, 4, 215–253, https://doi.org/10.5194/se-4-215-2013, https://doi.org/10.5194/se-4-215-2013, 2013
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We demonstrate the feasibility of imaging vertical freezing boundaries using borehole ground-penetrating radar (GPR) in experimental geological latent heat storage, where part of a shallow Quaternary aquifer is frozen. To gain insights into the current thermal state in the subsurface, we assess the frozen volume dimension. We show that a combination of crosshole and reflection measurements allows us to image the ice body with high accuracy in the challenging environment of saturated sediments.
Paola Montone, Simona Pierdominici, M. Teresa Mariucci, Francesco Mirabella, Marco Urbani, Assel Akimbekova, Lauro Chiaraluce, Wade Johnson, and Massimiliano Rinaldo Barchi
Solid Earth, 15, 1385–1406, https://doi.org/10.5194/se-15-1385-2024, https://doi.org/10.5194/se-15-1385-2024, 2024
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Quang Nguyen, Michal Malinowski, Stanisław Mazur, Sergiy Stovba, Małgorzata Ponikowska, and Christian Hübscher
Solid Earth, 15, 1029–1046, https://doi.org/10.5194/se-15-1029-2024, https://doi.org/10.5194/se-15-1029-2024, 2024
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Our work demonstrates the following: (1) an efficient seismic data-processing strategy focused on suppressing shallow-water multiple reflections. (2) An improvement in the quality of legacy marine seismic data. (3) A seismic interpretation of sedimentary successions overlying the basement in the transition zone from the Precambrian to Paleozoic platforms. (4) The tectonic evolution of the Koszalin Fault and its relation to the Caledonian Deformation Front offshore Poland.
Anne C. Glerum, Sascha Brune, Joseph M. Magnall, Philipp Weis, and Sarah A. Gleeson
Solid Earth, 15, 921–944, https://doi.org/10.5194/se-15-921-2024, https://doi.org/10.5194/se-15-921-2024, 2024
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High-value zinc–lead deposits formed in sedimentary basins created when tectonic plates rifted apart. We use computer simulations of rifting and the associated sediment erosion and deposition to understand why they formed in some basins but not in others. Basins that contain a metal source, faults that focus fluids, and rocks that can host deposits occurred in both narrow and wide rifts for ≤ 3 Myr. The largest and the most deposits form in narrow margins of narrow asymmetric rifts.
Fabio Cammarano, Henrique Berger Roisenberg, Alessio Conclave, Islam Fadel, and Mark van der Meijde
EGUsphere, https://doi.org/10.5194/egusphere-2024-1515, https://doi.org/10.5194/egusphere-2024-1515, 2024
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Sardinia and Corsica separated and drifting in the Mediterranean Sea for 35 my due to the retreat of the Ionian plate beneath the Tyrrhenian Sea. Using in-house and public data, we measured and interpreted receiver functions based on prior geophysical and petrological studies. Our findings indicate the islands' ancient continental structure remains mostly unchanged. Alpine orogenesis about 50 million years ago influenced Corsica's crust, enriching it with water-bearing minerals
África Gamisel-Muzás, Ruth Soto, Conxi Ayala, Tania Mochales, Félix Manuel Rubio, Pilar Clariana, Carmen Rey-Moral, and Juliana Martín-León
EGUsphere, https://doi.org/10.5194/egusphere-2024-1602, https://doi.org/10.5194/egusphere-2024-1602, 2024
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In this work we compare magnetic maps obtained from the EMAG2v2 (Earth Magnetic Anomaly Grid 2-arc-minute resolution) magnetic intensity data with the main geological structures and units of the Pyrenees and adjacent areas. The magnetic response arrangement for the different domains mimic the main structural lineaments and highlight the occurrence of major magnetic anomalies linked to specific geological bodies.
Yingkai Qi, Xuehua Chen, Qingwei Zhao, Xin Luo, and Chunqiang Feng
Solid Earth, 15, 535–554, https://doi.org/10.5194/se-15-535-2024, https://doi.org/10.5194/se-15-535-2024, 2024
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Fractures tend to dominate the mechanical and hydraulic properties of porous rock and impact the scattering characteristics of passing waves. This study takes into account the poroelastic effects of fractures in numerical modeling. Our results demonstrate that scattered waves from complex fracture systems are strongly affected by the fractures.
Farbod Khosro Anjom, Frank Adler, and Laura Valentina Socco
Solid Earth, 15, 367–386, https://doi.org/10.5194/se-15-367-2024, https://doi.org/10.5194/se-15-367-2024, 2024
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Most surface-wave techniques focus on estimating the S-wave velocity (VS) model and consider the P-wave velocity (VP) model as prior information in the inversion step. Here, we show the application of three surface-wave methods to estimate both VS and VP models. We apply the methods to the data from a hard-rock site that were acquired through the irregular source–receiver recording technique. We compare the outcomes and performances of the methods in detail.
Jérémie Giraud, Guillaume Caumon, Lachlan Grose, Vitaliy Ogarko, and Paul Cupillard
Solid Earth, 15, 63–89, https://doi.org/10.5194/se-15-63-2024, https://doi.org/10.5194/se-15-63-2024, 2024
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We present and test an algorithm that integrates geological modelling into deterministic geophysical inversion. This is motivated by the need to model the Earth using all available data and to reconcile the different types of measurements. We introduce the methodology and test our algorithm using two idealised scenarios. Results suggest that the method we propose is effectively capable of improving the models recovered by geophysical inversion and may be applied in real-world scenarios.
Thilo Wrona, Indranil Pan, Rebecca E. Bell, Christopher A.-L. Jackson, Robert L. Gawthorpe, Haakon Fossen, Edoseghe E. Osagiede, and Sascha Brune
Solid Earth, 14, 1181–1195, https://doi.org/10.5194/se-14-1181-2023, https://doi.org/10.5194/se-14-1181-2023, 2023
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We need to understand where faults are to do the following: (1) assess their seismic hazard, (2) explore for natural resources and (3) store CO2 safely in the subsurface. Currently, we still map subsurface faults primarily by hand using seismic reflection data, i.e. acoustic images of the Earth. Mapping faults this way is difficult and time-consuming. Here, we show how to use deep learning to accelerate fault mapping and how to use networks or graphs to simplify fault analyses.
Srishti Singh and Radheshyam Yadav
Solid Earth, 14, 937–959, https://doi.org/10.5194/se-14-937-2023, https://doi.org/10.5194/se-14-937-2023, 2023
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We use numerical models to study the stresses arising from gravitational potential energy (GPE) variations and shear tractions associated with mantle convection in the Zagros–Iran region. The joint models predicted consistent deviatoric stresses that can explain most of the deformation indicators. Stresses associated with mantle convection are found to be higher than those from GPE, thus indicating the deformation in this region may primarily be caused by the mantle, except in eastern Iran.
Sonja H. Wadas, Johanna F. Krumbholz, Vladimir Shipilin, Michael Krumbholz, David C. Tanner, and Hermann Buness
Solid Earth, 14, 871–908, https://doi.org/10.5194/se-14-871-2023, https://doi.org/10.5194/se-14-871-2023, 2023
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The geothermal carbonate reservoir below Munich, Germany, is extremely heterogeneous because it is controlled by many factors like lithology, diagenesis, karstification, and tectonic deformation. We used a 3D seismic single- and multi-attribute analysis combined with well data and a neural-net-based lithology classification to obtain an improved reservoir concept outlining its structural and diagenetic evolution and to identify high-quality reservoir zones in the Munich area.
Mengqi Wang, Lidong Dai, Haiying Hu, Ziming Hu, Chenxin Jing, Chuanyu Yin, Song Luo, and Jinhua Lai
Solid Earth, 14, 847–858, https://doi.org/10.5194/se-14-847-2023, https://doi.org/10.5194/se-14-847-2023, 2023
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This is the first time that the electrical conductivity of gabbroic melt was assessed at high temperature and high pressure. The dependence of electrical conductivity on the degree of depolymerization was also explored. Electrical conductivity of gabbroic melts can be employed to interpret high-conductivity anomalies in the Mohns Ridge of the Arctic Ocean. This is of widespread interest to potential readers in high-pressure rock physics, solid geophysics, and deep Earth science.
Laura Gaßner and Joachim Ritter
Solid Earth, 14, 785–803, https://doi.org/10.5194/se-14-785-2023, https://doi.org/10.5194/se-14-785-2023, 2023
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In this work we analyze signals emitted from wind turbines. They induce sound as well as ground motion waves which propagate through the subsurface and are registered by sensitive instruments. In our data we observe when these signals are present and how strong they are. Some signals are present in ground motion and sound data, providing the opportunity to study similarities and better characterize emissions. Furthermore, we study the amplitudes with distance to improve the signal prediction.
Gesa Franz, Marion Jegen, Max Moorkamp, Christian Berndt, and Wolfgang Rabbel
Solid Earth, 14, 237–259, https://doi.org/10.5194/se-14-237-2023, https://doi.org/10.5194/se-14-237-2023, 2023
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Our study focuses on the correlation of two geophysical parameters (electrical resistivity and density) with geological units. We use this computer-aided correlation to improve interpretation of the Earth’s formation history along the Namibian coast and the associated formation of the South Atlantic Ocean. It helps to distinguish different types of sediment cover and varieties of oceanic crust, as well as to identify typical features associated with the breakup of continents.
Jonathan Ford, Angelo Camerlenghi, Francesca Zolezzi, and Marilena Calarco
Solid Earth, 14, 137–151, https://doi.org/10.5194/se-14-137-2023, https://doi.org/10.5194/se-14-137-2023, 2023
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Submarine landslides commonly appear as low-amplitude zones in seismic data. Previous studies have attributed this to a lack of preserved internal structure. We use seismic modelling to show that an amplitude reduction can be generated even when there is still metre-scale internal structure, by simply deforming the bedding. This has implications for interpreting failure type, for core-seismic correlation and for discriminating landslides from other "transparent" phenomena such as free gas.
Sepidehalsadat Hendi, Mostafa Gorjian, Gilles Bellefleur, Christopher D. Hawkes, and Don White
Solid Earth, 14, 89–99, https://doi.org/10.5194/se-14-89-2023, https://doi.org/10.5194/se-14-89-2023, 2023
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In this study, the modelling results are used to help understand the performance of a helically wound fibre (HWC) from a field study at the New Afton mine, British Columbia. We introduce the numerical 3D model to model strain values in HWC to design more effective HWC system. The DAS dataset at New Afton, interpreted in the context of our modelling, serves as a practical demonstration of the extreme effects of surrounding media and coupling on HWC data quality.
Jérémie Giraud, Hoël Seillé, Mark D. Lindsay, Gerhard Visser, Vitaliy Ogarko, and Mark W. Jessell
Solid Earth, 14, 43–68, https://doi.org/10.5194/se-14-43-2023, https://doi.org/10.5194/se-14-43-2023, 2023
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We propose and apply a workflow to combine the modelling and interpretation of magnetic anomalies and resistivity anomalies to better image the basement. We test the method on a synthetic case study and apply it to real world data from the Cloncurry area (Queensland, Australia), which is prospective for economic minerals. Results suggest a new interpretation of the composition and structure towards to east of the profile that we modelled.
Sonja H. Wadas, Hermann Buness, Raphael Rochlitz, Peter Skiba, Thomas Günther, Michael Grinat, David C. Tanner, Ulrich Polom, Gerald Gabriel, and Charlotte M. Krawczyk
Solid Earth, 13, 1673–1696, https://doi.org/10.5194/se-13-1673-2022, https://doi.org/10.5194/se-13-1673-2022, 2022
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The dissolution of rocks poses a severe hazard because it can cause subsidence and sinkhole formation. Based on results from our study area in Thuringia, Germany, using P- and SH-wave reflection seismics, electrical resistivity and electromagnetic methods, and gravimetry, we develop a geophysical investigation workflow. This workflow enables identifying the initial triggers of subsurface dissolution and its control factors, such as structural constraints, fluid pathways, and mass movement.
Mohammadkarim Karimpour, Evert Slob, and Laura Valentina Socco
Solid Earth, 13, 1569–1583, https://doi.org/10.5194/se-13-1569-2022, https://doi.org/10.5194/se-13-1569-2022, 2022
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Near-surface characterisation is of great importance. Surface wave tomography (SWT) is a powerful tool to model the subsurface. In this work we compare straight-ray and curved-ray SWT at near-surface scale. We apply both approaches to four datasets and compare the results in terms of the quality of the final model and the computational cost. We show that in the case of high data coverage, straight-ray SWT can produce similar results to curved-ray SWT but with less computational cost.
La Ode Marzujriban Masfara, Thomas Cullison, and Cornelis Weemstra
Solid Earth, 13, 1309–1325, https://doi.org/10.5194/se-13-1309-2022, https://doi.org/10.5194/se-13-1309-2022, 2022
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Induced earthquakes are natural phenomena in which the events are associated with human activities. Although the magnitudes of these events are mostly smaller than tectonic events, in some cases, the magnitudes can be high enough to damage buildings near the event's location. To study these (high-magnitude) induced events, we developed a workflow in which the recorded data from an earthquake are used to describe the source and monitor the area for other (potentially high-magnitude) earthquakes.
Evgeniia Martuganova, Manfred Stiller, Ben Norden, Jan Henninges, and Charlotte M. Krawczyk
Solid Earth, 13, 1291–1307, https://doi.org/10.5194/se-13-1291-2022, https://doi.org/10.5194/se-13-1291-2022, 2022
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We demonstrate the applicability of vertical seismic profiling (VSP) acquired using wireline distributed acoustic sensing (DAS) technology for deep geothermal reservoir imaging and characterization. Borehole DAS data provide critical input for seismic interpretation and help assess small-scale geological structures. This case study can be used as a basis for detailed structural exploration of geothermal reservoirs and provide insightful information for geothermal exploration projects.
Brij Singh, Michał Malinowski, Andrzej Górszczyk, Alireza Malehmir, Stefan Buske, Łukasz Sito, and Paul Marsden
Solid Earth, 13, 1065–1085, https://doi.org/10.5194/se-13-1065-2022, https://doi.org/10.5194/se-13-1065-2022, 2022
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Fast depletion of shallower deposits is pushing the mining industry to look for cutting-edge technologies for deep mineral targeting. We demonstrated a joint workflow including two state-of-the-art technologies: full-waveform inversion and reverse time migration. We produced Earth images with significant details which can help with better estimation of areas with high mineralisation, better mine planning and safety measures.
Felix Hloušek, Michal Malinowski, Lena Bräunig, Stefan Buske, Alireza Malehmir, Magdalena Markovic, Lukasz Sito, Paul Marsden, and Emma Bäckström
Solid Earth, 13, 917–934, https://doi.org/10.5194/se-13-917-2022, https://doi.org/10.5194/se-13-917-2022, 2022
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Methods for mineral exploration play an important role within the EU. Exploration must be environmentally friendly, cost effective, and feasible in populated areas. Seismic methods have the potential to deliver detailed images of mineral deposits but suffer from these demands. We show the results for a sparse 3D seismic dataset acquired in Sweden. The 3D depth image allows us to track the known mineralizations beyond the known extent and gives new insights into the geometry of the deposit.
Robert Jackisch, Björn H. Heincke, Robert Zimmermann, Erik V. Sørensen, Markku Pirttijärvi, Moritz Kirsch, Heikki Salmirinne, Stefanie Lode, Urpo Kuronen, and Richard Gloaguen
Solid Earth, 13, 793–825, https://doi.org/10.5194/se-13-793-2022, https://doi.org/10.5194/se-13-793-2022, 2022
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We integrate UAS-based magnetic and multispectral data with legacy exploration data of a Ni–Cu–PGE prospect on Disko Island, West Greenland. The basalt unit has a complex magnetization, and we use a constrained 3D magnetic vector inversion to estimate magnetic properties and spatial dimensions of the target unit. Our 3D modelling reveals a horizontal sheet and a strong remanent magnetization component. We highlight the advantage of UAS use in rugged and remote terrain.
Trond Ryberg, Moritz Kirsch, Christian Haberland, Raimon Tolosana-Delgado, Andrea Viezzoli, and Richard Gloaguen
Solid Earth, 13, 519–533, https://doi.org/10.5194/se-13-519-2022, https://doi.org/10.5194/se-13-519-2022, 2022
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Novel methods for mineral exploration play an important role in future resource exploration. The methods have to be environmentally friendly, socially accepted and cost effective by integrating multidisciplinary methodologies. We investigate the potential of passive, ambient noise tomography combined with 3D airborne electromagnetics for mineral exploration in Geyer, Germany. We show that the combination of the two geophysical data sets has promising potential for future mineral exploration.
Chiara Colombero, Myrto Papadopoulou, Tuomas Kauti, Pietari Skyttä, Emilia Koivisto, Mikko Savolainen, and Laura Valentina Socco
Solid Earth, 13, 417–429, https://doi.org/10.5194/se-13-417-2022, https://doi.org/10.5194/se-13-417-2022, 2022
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Passive-source surface waves may be exploited in mineral exploration for deeper investigations. We propose a semi-automatic workflow for their processing. The geological interpretation of the results obtained at a mineral site (Siilinjärvi phosphorus mine) shows large potentialities and effectiveness of the proposed workflow.
Yueyang Xia, Dirk Klaeschen, Heidrun Kopp, and Michael Schnabel
Solid Earth, 13, 367–392, https://doi.org/10.5194/se-13-367-2022, https://doi.org/10.5194/se-13-367-2022, 2022
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Geological interpretations based on seismic depth images depend on an accurate subsurface velocity model. Reflection tomography is one method to iteratively update a velocity model based on depth error analysis. We used a warping method to estimate closely spaced data-driven depth error displacement fields. The application to a multichannel seismic line across the Sunda subduction zone illustrates the approach which leads to more accurate images of complex geological structures.
Martin Peter Lipus, Felix Schölderle, Thomas Reinsch, Christopher Wollin, Charlotte Krawczyk, Daniela Pfrang, and Kai Zosseder
Solid Earth, 13, 161–176, https://doi.org/10.5194/se-13-161-2022, https://doi.org/10.5194/se-13-161-2022, 2022
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A fiber-optic cable was installed along a freely suspended rod in a deep geothermal well in Munich, Germany. A cold-water injection test was monitored with fiber-optic distributed acoustic and temperature sensing. During injection, we observe vibrational events in the lower part of the well. On the basis of a mechanical model, we conclude that the vibrational events are caused by thermal contraction of the rod. The results illustrate potential artifacts when analyzing downhole acoustic data.
Jean-Baptiste P. Koehl, Craig Magee, and Ingrid M. Anell
Solid Earth, 13, 85–115, https://doi.org/10.5194/se-13-85-2022, https://doi.org/10.5194/se-13-85-2022, 2022
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The present study shows evidence of fault systems (large cracks in the Earth's crust) hundreds to thousands of kilometers long and several kilometers thick extending from northwestern Russia to the northern Norwegian Barents Sea and the Svalbard Archipelago using seismic, magnetic, and gravimetric data. The study suggests that the crust in Svalbard and the Barents Sea was already attached to Norway and Russia at ca. 650–550 Ma, thus challenging existing models.
Andrei Maksymowicz, Daniela Montecinos-Cuadros, Daniel Díaz, María José Segovia, and Tomás Reyes
Solid Earth, 13, 117–136, https://doi.org/10.5194/se-13-117-2022, https://doi.org/10.5194/se-13-117-2022, 2022
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This work analyses the density structure of the continental forearc in the northern segment of the 1960 Mw 9.6 Valdivia earthquake. Results show a segmentation of the continental wedge along and perpendicular to the margin. The extension of the less rigid basement units conforming the marine wedge and Coastal Cordillera domain could modify the process of stress loading during the interseismic periods. This analysis highlights the role of the overriding plate on the seismotectonic process.
Hossein Hassani, Felix Hloušek, Stefan Buske, and Olaf Wallner
Solid Earth, 12, 2703–2715, https://doi.org/10.5194/se-12-2703-2021, https://doi.org/10.5194/se-12-2703-2021, 2021
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Passive seismic imaging methods use natural earthquakes as seismic sources, while in active seismic imaging methods, artificial sources (e.g. explosives) are used to generate seismic waves. We imaged some structures related to a major fault plane through a passive seismic imaging approach using microearthquakes with magnitudes smaller than 0.9 (Mw). These structures have not been illuminated by a previously conducted 3D active seismic survey due to their large dip angles.
Maximilian O. Kottwitz, Anton A. Popov, Steffen Abe, and Boris J. P. Kaus
Solid Earth, 12, 2235–2254, https://doi.org/10.5194/se-12-2235-2021, https://doi.org/10.5194/se-12-2235-2021, 2021
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Upscaling fluid flow in fractured reservoirs is an important practice in subsurface resource utilization. In this study, we first conduct numerical simulations of direct fluid flow at locations where fractures intersect to analyze the arising hydraulic complexities. Next, we develop a model that integrates these effects into larger-scale continuum models of fracture networks to investigate their impact on the upscaling. For intensively fractured systems, these effects become important.
Klaus Regenauer-Lieb, Manman Hu, Christoph Schrank, Xiao Chen, Santiago Peña Clavijo, Ulrich Kelka, Ali Karrech, Oliver Gaede, Tomasz Blach, Hamid Roshan, Antoine B. Jacquey, Piotr Szymczak, and Qingpei Sun
Solid Earth, 12, 1829–1849, https://doi.org/10.5194/se-12-1829-2021, https://doi.org/10.5194/se-12-1829-2021, 2021
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This paper presents a trans-disciplinary approach bridging the gap between observations of instabilities from the molecular scale to the very large scale. We show that all scales communicate via propagation of volumetric deformation waves. Similar phenomena are encountered in quantum optics where wave collisions can release sporadic bursts of light. Ocean waves show a similar phenomenon of rogue waves that seem to come from nowhere. This mechanism is proposed to be the trigger for earthquakes.
Yinshuai Ding and Alireza Malehmir
Solid Earth, 12, 1707–1718, https://doi.org/10.5194/se-12-1707-2021, https://doi.org/10.5194/se-12-1707-2021, 2021
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In this article, we investigate the potential of reverse time migration (RTM) for deep targeting iron oxide deposits and the possible AVO effect that is potentially seen in the common image gathers from this migration algorithm. The results are promising and help to delineate the deposits and host rock structures using a 2D dataset from the Ludvika mines of central Sweden.
Nikita Afonin, Elena Kozlovskaya, Suvi Heinonen, and Stefan Buske
Solid Earth, 12, 1563–1579, https://doi.org/10.5194/se-12-1563-2021, https://doi.org/10.5194/se-12-1563-2021, 2021
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In our study, we show the results of a passive seismic interferometry application for mapping the uppermost crust in the area of active mineral exploration in northern Finland. The obtained velocity models agree well with geological data and complement the results of reflection seismic data interpretation.
Puy Ayarza, José Ramón Martínez Catalán, Ana Martínez García, Juan Alcalde, Juvenal Andrés, José Fernando Simancas, Immaculada Palomeras, David Martí, Irene DeFelipe, Chris Juhlin, and Ramón Carbonell
Solid Earth, 12, 1515–1547, https://doi.org/10.5194/se-12-1515-2021, https://doi.org/10.5194/se-12-1515-2021, 2021
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Vertical incidence seismic profiling on the Iberian Massif images a mid-crustal-scale discontinuity at the top of the reflective lower crust. This feature shows that upper- and lower-crustal reflections merge into it, suggesting that it has often behaved as a detachment. The orogen-scale extension of this discontinuity, present in Gondwanan and Avalonian affinity terranes into the Iberian Massif, demonstrates its relevance, leading us to interpret it as the Conrad discontinuity.
Peter-Lasse Giertzuch, Joseph Doetsch, Alexis Shakas, Mohammadreza Jalali, Bernard Brixel, and Hansruedi Maurer
Solid Earth, 12, 1497–1513, https://doi.org/10.5194/se-12-1497-2021, https://doi.org/10.5194/se-12-1497-2021, 2021
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Two time-lapse borehole ground penetrating radar (GPR) surveys were conducted during saline tracer experiments in weakly fractured crystalline rock with sub-millimeter fractures apertures, targeting electrical conductivity changes. The combination of time-lapse reflection and transmission GPR surveys from different boreholes allowed monitoring the tracer flow and reconstructing the flow path and its temporal evolution in 3D and provided a realistic visualization of the hydrological processes.
Irene Bianchi, Elmer Ruigrok, Anne Obermann, and Edi Kissling
Solid Earth, 12, 1185–1196, https://doi.org/10.5194/se-12-1185-2021, https://doi.org/10.5194/se-12-1185-2021, 2021
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The European Alps formed during collision between the European and Adriatic plates and are one of the most studied orogens for understanding the dynamics of mountain building. In the Eastern Alps, the contact between the colliding plates is still a matter of debate. We have used the records from distant earthquakes to highlight the geometries of the crust–mantle boundary in the Eastern Alpine area; our results suggest a complex and faulted internal crustal structure beneath the higher crests.
Saeid Cheraghi, Alireza Malehmir, Mostafa Naghizadeh, David Snyder, Lucie Mathieu, and Pierre Bedeaux
Solid Earth, 12, 1143–1164, https://doi.org/10.5194/se-12-1143-2021, https://doi.org/10.5194/se-12-1143-2021, 2021
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High-resolution seismic profiles in 2D are acquired in the north and south of the Chibougamau area, Quebec, Canada located in the northeast of the Abitibi Greenstone belt. The area mostly includes volcanic rocks, and both profiles cross over several fault zones. The seismic method is acquired to image the subsurface down to depth of 12 km. The main aim of this study is to image major fault zones and the geological formations connected to those faults to investigate metal endowment in the area.
Jean-Baptiste P. Koehl
Solid Earth, 12, 1025–1049, https://doi.org/10.5194/se-12-1025-2021, https://doi.org/10.5194/se-12-1025-2021, 2021
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By using seismic data and fieldwork, this contribution shows that soft, coal-rich sedimentary rocks absorbed most of early Cenozoic, Eurekan, contractional deformation in central Spitsbergen, thus suggesting that no contractional deformation event is needed in the Late Devonian to explain the deformation differences among late Paleozoic sedimentary rocks. It also shows that the Billefjorden Fault Zone, a major crack in the Earth's crust in Svalbard, is probably segmented.
Gilda Currenti, Philippe Jousset, Rosalba Napoli, Charlotte Krawczyk, and Michael Weber
Solid Earth, 12, 993–1003, https://doi.org/10.5194/se-12-993-2021, https://doi.org/10.5194/se-12-993-2021, 2021
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We investigate the capability of distributed acoustic sensing (DAS) to record dynamic strain changes related to Etna volcano activity in 2019. To validate the DAS measurements, we compute strain estimates from seismic signals recorded by a dense broadband array. A general good agreement is found between array-derived strain and DAS measurements along the fibre optic cable. Localised short wavelength discrepancies highlight small-scale structural heterogeneities in the investigated area.
Klaus Regenauer-Lieb, Manman Hu, Christoph Schrank, Xiao Chen, Santiago Peña Clavijo, Ulrich Kelka, Ali Karrech, Oliver Gaede, Tomasz Blach, Hamid Roshan, and Antoine B. Jacquey
Solid Earth, 12, 869–883, https://doi.org/10.5194/se-12-869-2021, https://doi.org/10.5194/se-12-869-2021, 2021
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In this paper we expand on a recent discovery of slow cross-diffusion hydromechanical waves cast into a new concise reaction–diffusion equation for THMC coupling. If waves are excited through the THMC reaction terms unbounded reactions can be captured by inclusion of statistical information from the lower scale through nonlocal reaction–diffusion equations. These cross-diffusion coefficients regularize extreme earthquake-like events (rogue waves) through a new form of quasi-soliton wave.
Christian Emile Nyaban, Théophile Ndougsa-Mbarga, Marcelin Bikoro-Bi-Alou, Stella Amina Manekeng Tadjouteu, and Stephane Patrick Assembe
Solid Earth, 12, 785–800, https://doi.org/10.5194/se-12-785-2021, https://doi.org/10.5194/se-12-785-2021, 2021
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A multi-scale analysis of aeromagnetic data combining tilt derivative, Euler deconvolution, upward continuation, and 2.75D modelling was applied over Cameroon between the latitudes 5°30'–6° N and the longitudes 13°30'–14°45' E. Major families of faults oriented ENE–WSW, E–W, NW–SE, and N–S with a NE–SW prevalence were mapped. Depths of interpreted faults range from 1000 to 3400 m, mylonitic veins were identified, and 2.75D modelling revealed fault depths greater than 1200 m.
Jennifer E. Cunningham, Nestor Cardozo, Chris Townsend, and Richard H. T. Callow
Solid Earth, 12, 741–764, https://doi.org/10.5194/se-12-741-2021, https://doi.org/10.5194/se-12-741-2021, 2021
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This work investigates the impact of commonly used seismic interpretation methods on the analysis of faults. Fault analysis refers to fault length, displacement, and the impact these factors have on geological modelling and hydrocarbon volume calculation workflows. This research was conducted to give geoscientists a better understanding of the importance of interpretation methods and the impact of unsuitable methology on geological analyses.
Jan Henninges, Evgeniia Martuganova, Manfred Stiller, Ben Norden, and Charlotte M. Krawczyk
Solid Earth, 12, 521–537, https://doi.org/10.5194/se-12-521-2021, https://doi.org/10.5194/se-12-521-2021, 2021
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We performed a seismic survey in two 4.3 km deep geothermal research wells using the novel method of distributed acoustic sensing and wireline cables. The characteristics of the acquired data, methods for data processing and quality improvement, and interpretations on the geometry and structure of the sedimentary and volcanic reservoir rocks are presented. The method enables measurements at high temperatures and reduced cost compared to conventional sensors.
Matthias Bücker, Adrián Flores Orozco, Jakob Gallistl, Matthias Steiner, Lukas Aigner, Johannes Hoppenbrock, Ruth Glebe, Wendy Morales Barrera, Carlos Pita de la Paz, César Emilio García García, José Alberto Razo Pérez, Johannes Buckel, Andreas Hördt, Antje Schwalb, and Liseth Pérez
Solid Earth, 12, 439–461, https://doi.org/10.5194/se-12-439-2021, https://doi.org/10.5194/se-12-439-2021, 2021
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We use seismic, electromagnetic, and geoelectrical methods to assess sediment thickness and lake-bottom geology of two karst lakes. An unexpected drainage event provided us with the unusual opportunity to compare water-borne measurements with measurements carried out on the dry lake floor. The resulting data set does not only provide insight into the specific lake-bottom geology of the studied lakes but also evidences the potential and limitations of the employed field methods.
Alireza Malehmir, Magdalena Markovic, Paul Marsden, Alba Gil, Stefan Buske, Lukasz Sito, Emma Bäckström, Martiya Sadeghi, and Stefan Luth
Solid Earth, 12, 483–502, https://doi.org/10.5194/se-12-483-2021, https://doi.org/10.5194/se-12-483-2021, 2021
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A smooth transition toward decarbonization demands access to more minerals of critical importance. Europe has a good geology for many of these mineral deposits, but at a depth requiring sensitive, environmentally friendly, and cost-effective methods for their exploration. In this context, we present a sparse 3D seismic dataset that allowed identification of potential iron oxide resources at depth and helped to characterise key geological structures and a historical tailing in central Sweden.
Alba Zappone, Antonio Pio Rinaldi, Melchior Grab, Quinn C. Wenning, Clément Roques, Claudio Madonna, Anne C. Obermann, Stefano M. Bernasconi, Matthias S. Brennwald, Rolf Kipfer, Florian Soom, Paul Cook, Yves Guglielmi, Christophe Nussbaum, Domenico Giardini, Marco Mazzotti, and Stefan Wiemer
Solid Earth, 12, 319–343, https://doi.org/10.5194/se-12-319-2021, https://doi.org/10.5194/se-12-319-2021, 2021
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The success of the geological storage of carbon dioxide is linked to the availability at depth of a capable reservoir and an impermeable caprock. The sealing capacity of the caprock is a key parameter for long-term CO2 containment. Faults crosscutting the caprock might represent preferential pathways for CO2 to escape. A decameter-scale experiment on injection in a fault, monitored by an integrated network of multiparamerter sensors, sheds light on the mobility of fluids within the fault.
Juvenal Andrés, Puy Ayarza, Martin Schimmel, Imma Palomeras, Mario Ruiz, and Ramon Carbonell
Solid Earth, 11, 2499–2513, https://doi.org/10.5194/se-11-2499-2020, https://doi.org/10.5194/se-11-2499-2020, 2020
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Short summary
The Kenya Rift is a zone along which the African continental plate is stretched as evidenced by strong earthquake and volcanic activity. We want to understand the controlling factors of past and future tectonic deformation; hence, we assess the structural and strength configuration of the rift system at the present-day. Data-driven 3-D numerical models show how the inherited composition of the crust and a thermal anomaly in the deep mantle interact to form localised zones of tectonic weakness.
The Kenya Rift is a zone along which the African continental plate is stretched as evidenced by...
