Articles | Volume 15, issue 2
https://doi.org/10.5194/se-15-305-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-15-305-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Feb 2024
Research article |
| 22 Feb 2024
| 22 Feb 2024
Impact of faults on the remote stress state
Karsten Reiter
CORRESPONDING AUTHOR
Institute of Applied Geosciences, TU Darmstadt, 64287 Darmstadt, Germany
Oliver Heidbach
Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, 14473 Potsdam, Germany
Institute of Applied Geosciences, TU Berlin, 10587 Berlin, Germany
Moritz O. Ziegler
Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, 14473 Potsdam, Germany
Department of Civil and Environmental Engineering, TU Munich, 80333 Munich, Germany
Related authors
Denise Degen, Moritz Ziegler, Oliver Heidbach, Andreas Henk, Karsten Reiter, and Florian Wellmann
EGUsphere, https://doi.org/10.5194/egusphere-2024-2932, https://doi.org/10.5194/egusphere-2024-2932, 2024
Short summary
Short summary
Obtaining reliable estimates of the subsurface state distributions is essential to determine the location of e.g. potential nuclear waste disposal sites. However, providing these is challenging since it requires solving the problem numerous times yielding high computational cost. To overcome this, we use a physics-based machine learning method to construct surrogate models. We demonstrate how it produces physics-preserving predictions, which differentiates it from purely data-driven approaches.
Moritz O. Ziegler, Robin Seithel, Thomas Niederhuber, Oliver Heidbach, Thomas Kohl, Birgit Müller, Mojtaba Rajabi, Karsten Reiter, and Luisa Röckel
Solid Earth, 15, 1047–1063, https://doi.org/10.5194/se-15-1047-2024, https://doi.org/10.5194/se-15-1047-2024, 2024
Short summary
Short summary
The rotation of the principal stress axes in a fault structure because of a rock stiffness contrast has been investigated for the impact of the ratio of principal stresses, the angle between principal stress axes and fault strike, and the ratio of the rock stiffness contrast. A generic 2D geomechanical model is employed for the systematic investigation of the parameter space.
Oliver Heidbach, Karsten Reiter, Moritz O. Ziegler, and Birgit Müller
Saf. Nucl. Waste Disposal, 2, 185–185, https://doi.org/10.5194/sand-2-185-2023, https://doi.org/10.5194/sand-2-185-2023, 2023
Short summary
Short summary
When stresses yield a critical value, rock breaks and generate pathways for fluid migration. Thus, the contemporary undisturbed stress state is a key parameter for assessing the stability of deep geological repositories. In this workshop you can ask everything you always wanted to know about stress (but were afraid to ask), and this is divided into three parts. 1) How do we formally describe the stress field? 2) How do we to actually measure stress? 3) How do we go from points to 3D description?
Karsten Reiter, Oliver Heidbach, Moritz Ziegler, Silvio Giger, Rodney Garrard, and Jean Desroches
Saf. Nucl. Waste Disposal, 2, 71–72, https://doi.org/10.5194/sand-2-71-2023, https://doi.org/10.5194/sand-2-71-2023, 2023
Short summary
Short summary
Numerical methods can be used to estimate the stress state in the Earth’s upper crust. Measured stress data are needed for model calibration. High-quality stress data are available for the calibration of models for possible radioactive waste repositories in Switzerland. A best-fit model predicts the stress state for each point within the model volume. In this study, variable rock properties are used to predict the potential stress variations due to inhomogeneous rock properties.
Luisa Röckel, Steffen Ahlers, Sophia Morawietz, Birgit Müller, Tobias Hergert, Karsten Reiter, Andreas Henk, Moritz Ziegler, Oliver Heidbach, and Frank Schilling
Saf. Nucl. Waste Disposal, 2, 73–73, https://doi.org/10.5194/sand-2-73-2023, https://doi.org/10.5194/sand-2-73-2023, 2023
Short summary
Short summary
Stress data predicted by a geomechanical–numerical model are mapped onto 3D fault geometries. Then the slip tendency of these faults is calculated as a measure of their reactivation potential. Characteristics of the faults and the state of stress are identified that lead to a high fault reactivation potential. An overall high reactivation potential is observed in the Upper Rhine Graben area, whereas the reactivation potential is quite low in the Molasse Basin.
Tobias Hergert, Steffen Ahlers, Luisa Röckel, Sophia Morawietz, Karsten Reiter, Moritz Ziegler, Birgit Müller, Oliver Heidbach, Frank Schilling, and Andreas Henk
Saf. Nucl. Waste Disposal, 2, 65–65, https://doi.org/10.5194/sand-2-65-2023, https://doi.org/10.5194/sand-2-65-2023, 2023
Short summary
Short summary
In numerical geomechanical models, an initial stress state is established before displacement boundary conditions are applied in order to match calibration data. We present generic models to show that the choice of initial stress and boundary conditions affects the final state of stress in areas of the model domain where no stress data for calibration are available. These deviations are largest in the vicinity of lithological interfaces, and they can be reduced if more stress data exist.
Steffen Ahlers, Karsten Reiter, Tobias Hergert, Andreas Henk, Luisa Röckel, Sophia Morawietz, Oliver Heidbach, Moritz Ziegler, and Birgit Müller
Saf. Nucl. Waste Disposal, 2, 59–59, https://doi.org/10.5194/sand-2-59-2023, https://doi.org/10.5194/sand-2-59-2023, 2023
Short summary
Short summary
The recent crustal stress state is a crucial parameter in the search for a high-level nuclear waste repository. We present results of a 3D geomechanical numerical model that improves the state of knowledge by providing a continuum-mechanics-based prediction of the recent crustal stress field in Germany. The model results can be used, for example, for the calculation of fracture potential, for slip tendency analyses or as boundary conditions for smaller local models.
Luisa Röckel, Steffen Ahlers, Birgit Müller, Karsten Reiter, Oliver Heidbach, Andreas Henk, Tobias Hergert, and Frank Schilling
Solid Earth, 13, 1087–1105, https://doi.org/10.5194/se-13-1087-2022, https://doi.org/10.5194/se-13-1087-2022, 2022
Short summary
Short summary
Reactivation of tectonic faults can lead to earthquakes and jeopardize underground operations. The reactivation potential is linked to fault properties and the tectonic stress field. We create 3D geometries for major faults in Germany and use stress data from a 3D geomechanical–numerical model to calculate their reactivation potential and compare it to seismic events. The reactivation potential in general is highest for NNE–SSW- and NW–SE-striking faults and strongly depends on the fault dip.
Luisa Röckel, Steffen Ahlers, Sophia Morawietz, Birgit Müller, Karsten Reiter, Oliver Heidbach, Andreas Henk, Tobias Hergert, and Frank Schilling
Saf. Nucl. Waste Disposal, 1, 77–78, https://doi.org/10.5194/sand-1-77-2021, https://doi.org/10.5194/sand-1-77-2021, 2021
Karsten Reiter, Steffen Ahlers, Sophia Morawietz, Luisa Röckel, Tobias Hergert, Andreas Henk, Birgit Müller, and Oliver Heidbach
Saf. Nucl. Waste Disposal, 1, 75–76, https://doi.org/10.5194/sand-1-75-2021, https://doi.org/10.5194/sand-1-75-2021, 2021
Steffen Ahlers, Andreas Henk, Tobias Hergert, Karsten Reiter, Birgit Müller, Luisa Röckel, Oliver Heidbach, Sophia Morawietz, Magdalena Scheck-Wenderoth, and Denis Anikiev
Saf. Nucl. Waste Disposal, 1, 163–164, https://doi.org/10.5194/sand-1-163-2021, https://doi.org/10.5194/sand-1-163-2021, 2021
Sophia Morawietz, Moritz Ziegler, Karsten Reiter, and the SpannEnD Project Team
Saf. Nucl. Waste Disposal, 1, 71–72, https://doi.org/10.5194/sand-1-71-2021, https://doi.org/10.5194/sand-1-71-2021, 2021
Short summary
Short summary
Knowledge of the crustal stress state is important for the assessment of subsurface stability. In particular, stress magnitudes are essential for the calibration of geomechanical models that estimate a continuous description of the 3-D stress field from pointwise and incomplete stress data. We present the first comprehensive and open-access stress magnitude database for Germany, consisting of 568 data records. We introduce a quality ranking scheme for stress magnitude data for the first time.
Steffen Ahlers, Andreas Henk, Tobias Hergert, Karsten Reiter, Birgit Müller, Luisa Röckel, Oliver Heidbach, Sophia Morawietz, Magdalena Scheck-Wenderoth, and Denis Anikiev
Solid Earth, 12, 1777–1799, https://doi.org/10.5194/se-12-1777-2021, https://doi.org/10.5194/se-12-1777-2021, 2021
Short summary
Short summary
Knowledge about the stress state in the upper crust is of great importance for many economic and scientific questions. However, our knowledge in Germany is limited since available datasets only provide pointwise, incomplete and heterogeneous information. We present the first 3D geomechanical model that provides a continuous description of the contemporary crustal stress state for Germany. The model is calibrated by the orientation of the maximum horizontal stress and stress magnitudes.
Karsten Reiter
Solid Earth, 12, 1287–1307, https://doi.org/10.5194/se-12-1287-2021, https://doi.org/10.5194/se-12-1287-2021, 2021
Short summary
Short summary
The influence and interaction of elastic material properties (Young's modulus, Poisson's ratio), density and low-friction faults on the resulting far-field stress pattern in the Earth's crust is tested with generic models. A Young's modulus contrast can lead to a significant stress rotation. Discontinuities with low friction in homogeneous models change the stress pattern only slightly, away from the fault. In addition, active discontinuities are able to compensate stress rotation.
T. Hergert, O. Heidbach, K. Reiter, S. B. Giger, and P. Marschall
Solid Earth, 6, 533–552, https://doi.org/10.5194/se-6-533-2015, https://doi.org/10.5194/se-6-533-2015, 2015
Short summary
Short summary
A numerical model integrating the structure and mechanical properties of a sedimentary sequence in the Alpine foreland is presented to show that topography, tectonic faults and, most of all, spatialy variable rock properties affect the state of stress at depth. The tectonic forces acting on the sequence are primarily taken up by the stiff rock units leaving the weaker units in a stress shadow.
K. Reiter and O. Heidbach
Solid Earth, 5, 1123–1149, https://doi.org/10.5194/se-5-1123-2014, https://doi.org/10.5194/se-5-1123-2014, 2014
Denise Degen, Moritz Ziegler, Oliver Heidbach, Andreas Henk, Karsten Reiter, and Florian Wellmann
EGUsphere, https://doi.org/10.5194/egusphere-2024-2932, https://doi.org/10.5194/egusphere-2024-2932, 2024
Short summary
Short summary
Obtaining reliable estimates of the subsurface state distributions is essential to determine the location of e.g. potential nuclear waste disposal sites. However, providing these is challenging since it requires solving the problem numerous times yielding high computational cost. To overcome this, we use a physics-based machine learning method to construct surrogate models. We demonstrate how it produces physics-preserving predictions, which differentiates it from purely data-driven approaches.
Moritz O. Ziegler, Robin Seithel, Thomas Niederhuber, Oliver Heidbach, Thomas Kohl, Birgit Müller, Mojtaba Rajabi, Karsten Reiter, and Luisa Röckel
Solid Earth, 15, 1047–1063, https://doi.org/10.5194/se-15-1047-2024, https://doi.org/10.5194/se-15-1047-2024, 2024
Short summary
Short summary
The rotation of the principal stress axes in a fault structure because of a rock stiffness contrast has been investigated for the impact of the ratio of principal stresses, the angle between principal stress axes and fault strike, and the ratio of the rock stiffness contrast. A generic 2D geomechanical model is employed for the systematic investigation of the parameter space.
Oliver Heidbach, Karsten Reiter, Moritz O. Ziegler, and Birgit Müller
Saf. Nucl. Waste Disposal, 2, 185–185, https://doi.org/10.5194/sand-2-185-2023, https://doi.org/10.5194/sand-2-185-2023, 2023
Short summary
Short summary
When stresses yield a critical value, rock breaks and generate pathways for fluid migration. Thus, the contemporary undisturbed stress state is a key parameter for assessing the stability of deep geological repositories. In this workshop you can ask everything you always wanted to know about stress (but were afraid to ask), and this is divided into three parts. 1) How do we formally describe the stress field? 2) How do we to actually measure stress? 3) How do we go from points to 3D description?
Moritz O. Ziegler, Oliver Heidbach, and Mojtaba Rajabi
Saf. Nucl. Waste Disposal, 2, 79–80, https://doi.org/10.5194/sand-2-79-2023, https://doi.org/10.5194/sand-2-79-2023, 2023
Short summary
Short summary
The subsurface is subject to constant stress. With increasing depth, more rock overlies an area, thereby increasing the stress. There is also constant stress from the sides. Knowledge of this stress is fundamental to build lasting and safe underground structures. Very few data on the stress state are available; thus, computer models are used to predict this parameter. We present a method to improve the quality of the computer models, even if no direct data on the stress state are available.
Karsten Reiter, Oliver Heidbach, Moritz Ziegler, Silvio Giger, Rodney Garrard, and Jean Desroches
Saf. Nucl. Waste Disposal, 2, 71–72, https://doi.org/10.5194/sand-2-71-2023, https://doi.org/10.5194/sand-2-71-2023, 2023
Short summary
Short summary
Numerical methods can be used to estimate the stress state in the Earth’s upper crust. Measured stress data are needed for model calibration. High-quality stress data are available for the calibration of models for possible radioactive waste repositories in Switzerland. A best-fit model predicts the stress state for each point within the model volume. In this study, variable rock properties are used to predict the potential stress variations due to inhomogeneous rock properties.
Luisa Röckel, Steffen Ahlers, Sophia Morawietz, Birgit Müller, Tobias Hergert, Karsten Reiter, Andreas Henk, Moritz Ziegler, Oliver Heidbach, and Frank Schilling
Saf. Nucl. Waste Disposal, 2, 73–73, https://doi.org/10.5194/sand-2-73-2023, https://doi.org/10.5194/sand-2-73-2023, 2023
Short summary
Short summary
Stress data predicted by a geomechanical–numerical model are mapped onto 3D fault geometries. Then the slip tendency of these faults is calculated as a measure of their reactivation potential. Characteristics of the faults and the state of stress are identified that lead to a high fault reactivation potential. An overall high reactivation potential is observed in the Upper Rhine Graben area, whereas the reactivation potential is quite low in the Molasse Basin.
Tobias Hergert, Steffen Ahlers, Luisa Röckel, Sophia Morawietz, Karsten Reiter, Moritz Ziegler, Birgit Müller, Oliver Heidbach, Frank Schilling, and Andreas Henk
Saf. Nucl. Waste Disposal, 2, 65–65, https://doi.org/10.5194/sand-2-65-2023, https://doi.org/10.5194/sand-2-65-2023, 2023
Short summary
Short summary
In numerical geomechanical models, an initial stress state is established before displacement boundary conditions are applied in order to match calibration data. We present generic models to show that the choice of initial stress and boundary conditions affects the final state of stress in areas of the model domain where no stress data for calibration are available. These deviations are largest in the vicinity of lithological interfaces, and they can be reduced if more stress data exist.
Steffen Ahlers, Karsten Reiter, Tobias Hergert, Andreas Henk, Luisa Röckel, Sophia Morawietz, Oliver Heidbach, Moritz Ziegler, and Birgit Müller
Saf. Nucl. Waste Disposal, 2, 59–59, https://doi.org/10.5194/sand-2-59-2023, https://doi.org/10.5194/sand-2-59-2023, 2023
Short summary
Short summary
The recent crustal stress state is a crucial parameter in the search for a high-level nuclear waste repository. We present results of a 3D geomechanical numerical model that improves the state of knowledge by providing a continuum-mechanics-based prediction of the recent crustal stress field in Germany. The model results can be used, for example, for the calculation of fracture potential, for slip tendency analyses or as boundary conditions for smaller local models.
Michal Kruszewski, Alessandro Verdecchia, Oliver Heidbach, Rebecca M. Harrington, and David Healy
EGUsphere, https://doi.org/10.5194/egusphere-2023-1889, https://doi.org/10.5194/egusphere-2023-1889, 2023
Preprint archived
Short summary
Short summary
In this study, we investigate the evolution of fault reactivation potential in the greater Ruhr region (Germany) in respect to a future utilization of deep geothermal resources. We use analytical and numerical approaches to understand the initial stress conditions on faults as well as their evolution in space and time during geothermal fluid production. Using results from our analyses, we can localize areas more favorable for geothermal energy use based on fault reactivation potential.
Michal Kruszewski, Gerd Klee, Thomas Niederhuber, and Oliver Heidbach
Earth Syst. Sci. Data, 14, 5367–5385, https://doi.org/10.5194/essd-14-5367-2022, https://doi.org/10.5194/essd-14-5367-2022, 2022
Short summary
Short summary
The authors assemble an in situ stress magnitude and orientation database based on 429 hydrofracturing tests that were carried out in six coal mines and two coal bed methane boreholes between 1986 and 1995 within the greater Ruhr region (Germany). Our study summarises the results of the extensive in situ stress test campaign and assigns quality to each data record using the established quality ranking schemes of the World Stress Map project.
Luisa Röckel, Steffen Ahlers, Birgit Müller, Karsten Reiter, Oliver Heidbach, Andreas Henk, Tobias Hergert, and Frank Schilling
Solid Earth, 13, 1087–1105, https://doi.org/10.5194/se-13-1087-2022, https://doi.org/10.5194/se-13-1087-2022, 2022
Short summary
Short summary
Reactivation of tectonic faults can lead to earthquakes and jeopardize underground operations. The reactivation potential is linked to fault properties and the tectonic stress field. We create 3D geometries for major faults in Germany and use stress data from a 3D geomechanical–numerical model to calculate their reactivation potential and compare it to seismic events. The reactivation potential in general is highest for NNE–SSW- and NW–SE-striking faults and strongly depends on the fault dip.
Moritz Ziegler and Oliver Heidbach
Saf. Nucl. Waste Disposal, 1, 187–188, https://doi.org/10.5194/sand-1-187-2021, https://doi.org/10.5194/sand-1-187-2021, 2021
Short summary
Short summary
The Earth's crust is subject to constant stress which is manifested by earthquakes at plate boundaries. This stress is not only at plate boundaries but everywhere in the crust. A profound knowledge of the magnitude and orientation of the stress is important to select and build a safe deep geological repository for nuclear waste. We demonstrate how to build computer models of the stress state and show how to deal with the associated uncertainties.
Luisa Röckel, Steffen Ahlers, Sophia Morawietz, Birgit Müller, Karsten Reiter, Oliver Heidbach, Andreas Henk, Tobias Hergert, and Frank Schilling
Saf. Nucl. Waste Disposal, 1, 77–78, https://doi.org/10.5194/sand-1-77-2021, https://doi.org/10.5194/sand-1-77-2021, 2021
Karsten Reiter, Steffen Ahlers, Sophia Morawietz, Luisa Röckel, Tobias Hergert, Andreas Henk, Birgit Müller, and Oliver Heidbach
Saf. Nucl. Waste Disposal, 1, 75–76, https://doi.org/10.5194/sand-1-75-2021, https://doi.org/10.5194/sand-1-75-2021, 2021
Steffen Ahlers, Andreas Henk, Tobias Hergert, Karsten Reiter, Birgit Müller, Luisa Röckel, Oliver Heidbach, Sophia Morawietz, Magdalena Scheck-Wenderoth, and Denis Anikiev
Saf. Nucl. Waste Disposal, 1, 163–164, https://doi.org/10.5194/sand-1-163-2021, https://doi.org/10.5194/sand-1-163-2021, 2021
Sophia Morawietz, Moritz Ziegler, Karsten Reiter, and the SpannEnD Project Team
Saf. Nucl. Waste Disposal, 1, 71–72, https://doi.org/10.5194/sand-1-71-2021, https://doi.org/10.5194/sand-1-71-2021, 2021
Short summary
Short summary
Knowledge of the crustal stress state is important for the assessment of subsurface stability. In particular, stress magnitudes are essential for the calibration of geomechanical models that estimate a continuous description of the 3-D stress field from pointwise and incomplete stress data. We present the first comprehensive and open-access stress magnitude database for Germany, consisting of 568 data records. We introduce a quality ranking scheme for stress magnitude data for the first time.
Steffen Ahlers, Andreas Henk, Tobias Hergert, Karsten Reiter, Birgit Müller, Luisa Röckel, Oliver Heidbach, Sophia Morawietz, Magdalena Scheck-Wenderoth, and Denis Anikiev
Solid Earth, 12, 1777–1799, https://doi.org/10.5194/se-12-1777-2021, https://doi.org/10.5194/se-12-1777-2021, 2021
Short summary
Short summary
Knowledge about the stress state in the upper crust is of great importance for many economic and scientific questions. However, our knowledge in Germany is limited since available datasets only provide pointwise, incomplete and heterogeneous information. We present the first 3D geomechanical model that provides a continuous description of the contemporary crustal stress state for Germany. The model is calibrated by the orientation of the maximum horizontal stress and stress magnitudes.
Karsten Reiter
Solid Earth, 12, 1287–1307, https://doi.org/10.5194/se-12-1287-2021, https://doi.org/10.5194/se-12-1287-2021, 2021
Short summary
Short summary
The influence and interaction of elastic material properties (Young's modulus, Poisson's ratio), density and low-friction faults on the resulting far-field stress pattern in the Earth's crust is tested with generic models. A Young's modulus contrast can lead to a significant stress rotation. Discontinuities with low friction in homogeneous models change the stress pattern only slightly, away from the fault. In addition, active discontinuities are able to compensate stress rotation.
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
Short summary
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.
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
Short summary
Short summary
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.
T. Hergert, O. Heidbach, K. Reiter, S. B. Giger, and P. Marschall
Solid Earth, 6, 533–552, https://doi.org/10.5194/se-6-533-2015, https://doi.org/10.5194/se-6-533-2015, 2015
Short summary
Short summary
A numerical model integrating the structure and mechanical properties of a sedimentary sequence in the Alpine foreland is presented to show that topography, tectonic faults and, most of all, spatialy variable rock properties affect the state of stress at depth. The tectonic forces acting on the sequence are primarily taken up by the stiff rock units leaving the weaker units in a stress shadow.
K. Reiter and O. Heidbach
Solid Earth, 5, 1123–1149, https://doi.org/10.5194/se-5-1123-2014, https://doi.org/10.5194/se-5-1123-2014, 2014
Related subject area
Subject area: Tectonic plate interactions, magma genesis, and lithosphere deformation at all scales | Editorial team: Structural geology and tectonics, paleoseismology, rock physics, experimental deformation | Discipline: Structural geology
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Dating folding beyond folding, from layer-parallel shortening to fold tightening, using mesostructures: lessons from the Apennines, Pyrenees, and Rocky Mountains
Deformation-enhanced diagenesis and bacterial proliferation in the Nankai accretionary prism
Rheological stratification in impure rock salt during long-term creep: morphology, microstructure, and numerical models of multilayer folds in the Ocnele Mari salt mine, Romania
Jeffrey M. Rahl, Brendan Moehringer, Kenneth S. Befus, and John S. Singleton
Solid Earth, 15, 1233–1240, https://doi.org/10.5194/se-15-1233-2024, https://doi.org/10.5194/se-15-1233-2024, 2024
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At the high temperatures present in the deeper crust, minerals such as quartz can flow much like silly putty. The detailed mechanisms of how atoms are reorganized depends upon several factors, such as the temperature and the rate of which the mineral changes shape. We present observations from a naturally deformed rock showing that the amount of water present also influences the type of deformation in quartz, with implications for geological interpretations.
Malte Froemchen, Ken J. W. McCaffrey, Mark B. Allen, Jeroen van Hunen, Thomas B. Phillips, and Yueren Xu
Solid Earth, 15, 1203–1231, https://doi.org/10.5194/se-15-1203-2024, https://doi.org/10.5194/se-15-1203-2024, 2024
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The Shanxi Rift is a young, active rift in northern China that formed atop a Proterozoic orogen. The impact of these structures on active rift faults is poorly understood. Here, we quantify the landscape response to active faulting and compare it with published maps of inherited structures. We find that inherited structures played an important role in the segmentation of the Shanxi Rift and in the development of rift interaction zones, which are the most active regions in the Shanxi Rift.
Jinbao Su, Wenbin Zhu, and Guangwei Li
Solid Earth, 15, 1133–1141, https://doi.org/10.5194/se-15-1133-2024, https://doi.org/10.5194/se-15-1133-2024, 2024
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The late Mesozoic igneous rocks in the South China Block exhibit flare-ups and lulls, which form in compressional or extensional backgrounds. The ascending of magma forms a mush-like head and decreases crustal thickness. The presence of faults and pre-existing magmas will accelerate emplacement of underplating magma. The magmatism at different times may be formed under similar subduction conditions, and the boundary compression forces will delay magma ascent.
Peter Achtziger-Zupančič, Alberto Ceccato, Alba Simona Zappone, Giacomo Pozzi, Alexis Shakas, Florian Amann, Whitney Maria Behr, Daniel Escallon Botero, Domenico Giardini, Marian Hertrich, Mohammadreza Jalali, Xiaodong Ma, Men-Andrin Meier, Julian Osten, Stefan Wiemer, and Massimo Cocco
Solid Earth, 15, 1087–1112, https://doi.org/10.5194/se-15-1087-2024, https://doi.org/10.5194/se-15-1087-2024, 2024
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We detail the selection and characterization of a fault zone for earthquake experiments in the Fault Activation and Earthquake Ruptures (FEAR) project at the Bedretto Lab. FEAR, which studies earthquake processes, overcame data collection challenges near faults. The fault zone in Rotondo granite was selected based on geometry, monitorability, and hydro-mechanical properties. Remote sensing, borehole logging, and geological mapping were used to create a 3D model for precise monitoring.
Maxime Jamet, Gregory Ballas, Roger Soliva, Olivier Gerbeaud, Thierry Lefebvre, Christine Leredde, and Didier Loggia
Solid Earth, 15, 895–920, https://doi.org/10.5194/se-15-895-2024, https://doi.org/10.5194/se-15-895-2024, 2024
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This study characterizes the Tchirezrine II sandstone reservoir in northern Niger. Crucial for potential uranium in situ recovery (ISR), our multifaceted approach reveals (i) a network of homogeneously distributed orthogonal structures, (ii) the impact of clustered E–W fault structures on anisotropic fluid flow, and (iii) local changes in the matrix behaviour of the reservoir as a function of the density and nature of the deformation structure.
Matthew S. Hodge, Guri Venvik, Jochen Knies, Roelant van der Lelij, Jasmin Schönenberger, Øystein Nordgulen, Marco Brönner, Aziz Nasuti, and Giulio Viola
Solid Earth, 15, 589–615, https://doi.org/10.5194/se-15-589-2024, https://doi.org/10.5194/se-15-589-2024, 2024
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Smøla island, in the mid-Norwegian margin, has complex fracture and fault patterns resulting from tectonic activity. This study uses a multiple-method approach to unravel Smøla's tectonic history. We found five different phases of deformation related to various fracture geometries and minerals dating back hundreds of millions of years. 3D models of these features visualise these structures in space. This approach may help us to understand offshore oil and gas reservoirs hosted in the basement.
Pramit Chatterjee, Arnab Roy, and Nibir Mandal
EGUsphere, https://doi.org/10.5194/egusphere-2024-1077, https://doi.org/10.5194/egusphere-2024-1077, 2024
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Understanding the strain accumulation processes in ductile shear zones is essential to explain the failure mechanisms at great crustal depths. This study explores the rheological and kinematic factors determining the varying modes of shear accommodation in natural shear zones. Numerical simulations suggest that an interplay of the following parameters: initial bulk viscosity, bulk shear rate, and internal cohesion governs the dominance of one accommodation mechanism over the other.
Yukinojo Koyama, Simon R. Wallis, and Takayoshi Nagaya
Solid Earth, 15, 143–166, https://doi.org/10.5194/se-15-143-2024, https://doi.org/10.5194/se-15-143-2024, 2024
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Stress along a subduction plate boundary is important for understanding subduction phenomena such as earthquakes. We estimated paleo-stress using quartz recrystallized grain size combined with deformation temperature and P–T paths of exhumed rocks. The obtained results show differential stresses of 30.8–82.7 MPa consistent over depths of 17–27 km in the paleo-subduction boundary. The obtained stress may represent the initial conditions under which slow earthquakes nucleated in the same domain.
Annelotte Weert, Kei Ogata, Francesco Vinci, Coen Leo, Giovanni Bertotti, Jerome Amory, and Stefano Tavani
Solid Earth, 15, 121–141, https://doi.org/10.5194/se-15-121-2024, https://doi.org/10.5194/se-15-121-2024, 2024
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On the road to a sustainable planet, geothermal energy is considered one of the main substitutes when it comes to heating. The geological history of an area can have a major influence on the application of these geothermal systems, as demonstrated in the West Netherlands Basin. Here, multiple episodes of rifting and subsequent basin inversion have controlled the distribution of the reservoir rocks, thus influencing the locations where geothermal energy can be exploited.
Pâmela C. Richetti, Frank Zwaan, Guido Schreurs, Renata S. Schmitt, and Timothy C. Schmid
Solid Earth, 14, 1245–1266, https://doi.org/10.5194/se-14-1245-2023, https://doi.org/10.5194/se-14-1245-2023, 2023
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The Araripe Basin in NE Brazil was originally formed during Cretaceous times, as South America and Africa broke up. The basin is an important analogue to offshore South Atlantic break-up basins; its sediments were uplifted and are now found at 1000 m height, allowing for studies thereof, but the cause of the uplift remains debated. Here we ran a series of tectonic laboratory experiments that show how a specific plate tectonic configuration can explain the evolution of the Araripe Basin.
Adam J. Cawood, Hannah Watkins, Clare E. Bond, Marian J. Warren, and Mark A. Cooper
Solid Earth, 14, 1005–1030, https://doi.org/10.5194/se-14-1005-2023, https://doi.org/10.5194/se-14-1005-2023, 2023
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Here we test conceptual models of fracture development by investigating fractures across multiple scales. We find that most fractures increase in abundance towards the fold hinge, and we interpret these as being fold related. Other fractures at the site show inconsistent orientations and are unrelated to fold formation. Our results show that predicting fracture patterns requires the consideration of multiple geologic variables.
Johanna Heeb, David Healy, Nicholas E. Timms, and Enrique Gomez-Rivas
Solid Earth, 14, 985–1003, https://doi.org/10.5194/se-14-985-2023, https://doi.org/10.5194/se-14-985-2023, 2023
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Hydration of rocks is a key process in the Earth’s crust and mantle that is accompanied by changes in physical traits and mechanical behaviour of rocks. This study assesses the influence of stress on hydration reaction kinetics and mechanics in experiments on anhydrite. We show that hydration occurs readily under stress and results in localized hydration along fractures and mechanic weakening. New gypsum growth is selective and depends on the stress field and host anhydrite crystal orientation.
Roy Helge Gabrielsen, Panagiotis Athanasios Giannenas, Dimitrios Sokoutis, Ernst Willingshofer, Muhammad Hassaan, and Jan Inge Faleide
Solid Earth, 14, 961–983, https://doi.org/10.5194/se-14-961-2023, https://doi.org/10.5194/se-14-961-2023, 2023
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The Barents Shear Margin defines the border between the relatively shallow Barents Sea that is situated on a continental plate and the deep ocean. This margin's evolution history was probably influenced by plate tectonic reorganizations. From scaled experiments, we deduced several types of structures (faults, folds, and sedimentary basins) that help us to improve the understanding of the history of the opening of the North Atlantic.
Leslie Logan, Ervin Veress, Joel B. H. Andersson, Olof Martinsson, and Tobias E. Bauer
Solid Earth, 14, 763–784, https://doi.org/10.5194/se-14-763-2023, https://doi.org/10.5194/se-14-763-2023, 2023
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The Pahtohavare Cu ± Au deposits in the Kiruna mining district have a dubious timing of formation and have not been contextualized within an up-to-date tectonic framework. Structural mapping was carried out to reveal that the deposits are hosted in brittle structures that cut a noncylindrical, SE-plunging anticline constrained to have formed during the late-Svecokarelian orogeny. These results show that Cu ± Au mineralization formed more than ca. 80 Myr after iron oxide–apatite mineralization.
Alexandra Tamas, Dan M. Tamas, Gabor Tari, Csaba Krezsek, Alexandru Lapadat, and Zsolt Schleder
Solid Earth, 14, 741–761, https://doi.org/10.5194/se-14-741-2023, https://doi.org/10.5194/se-14-741-2023, 2023
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Tectonic processes are complex and often difficult to understand due to the limitations of surface or subsurface data. One such process is inversion tectonics, which means that an area initially developed in an extension (such as the opening of an ocean) is reversed to compression (the process leading to mountain building). In this research, we use a laboratory method (analogue modelling), and with the help of a sandbox, we try to better understand structures (folds/faults) related to inversion.
Elizabeth Parker Wilson, Pablo Granado, Pablo Santolaria, Oriol Ferrer, and Josep Anton Muñoz
Solid Earth, 14, 709–739, https://doi.org/10.5194/se-14-709-2023, https://doi.org/10.5194/se-14-709-2023, 2023
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This work focuses on the control of accommodation zones on extensional and subsequent inversion in salt-detached domains using sandbox analogue models. During extension, the transfer zone acts as a pathway for the movement of salt, changing the expected geometries. When inverted, the salt layer and syn-inversion sedimentation control the deformation style in the salt-detached cover system. Three natural cases are compared to the model results and show similar inversion geometries.
Oriol Ferrer, Eloi Carola, and Ken McClay
Solid Earth, 14, 571–589, https://doi.org/10.5194/se-14-571-2023, https://doi.org/10.5194/se-14-571-2023, 2023
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Using an experimental approach based on scaled sandbox models, this work aims to understand how salt above different rotational fault blocks influences the cover geometry and evolution, first during extension and then during inversion. The results show that inherited salt structures constrain contractional deformation. We show for the first time how welds and fault welds are reopened during contractional deformation, having direct implications for the subsurface exploration of natural resources.
Chiara Montemagni, Stefano Zanchetta, Martina Rocca, Igor M. Villa, Corrado Morelli, Volkmar Mair, and Andrea Zanchi
Solid Earth, 14, 551–570, https://doi.org/10.5194/se-14-551-2023, https://doi.org/10.5194/se-14-551-2023, 2023
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The Vinschgau Shear Zone (VSZ) is one of the largest and most significant shear zones developed within the Late Cretaceous thrust stack in the Austroalpine domain of the eastern Alps. 40Ar / 39Ar geochronology constrains the activity of the VSZ between 97 and 80 Ma. The decreasing vorticity towards the core of the shear zone, coupled with the younging of mylonites, points to a shear thinning behavior. The deepest units of the Eo-Alpine orogenic wedge were exhumed along the VSZ.
Jordi Miró, Oriol Ferrer, Josep Anton Muñoz, and Gianreto Manastchal
Solid Earth, 14, 425–445, https://doi.org/10.5194/se-14-425-2023, https://doi.org/10.5194/se-14-425-2023, 2023
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Using the Asturian–Basque–Cantabrian system and analogue (sandbox) models, this work focuses on the linkage between basement-controlled and salt-decoupled domains and how deformation is accommodated between the two during extension and subsequent inversion. Analogue models show significant structural variability in the transitional domain, with oblique structures that can be strongly modified by syn-contractional sedimentation. Experimental results are consistent with the case study.
Junichi Fukuda, Takamoto Okudaira, and Yukiko Ohtomo
Solid Earth, 14, 409–424, https://doi.org/10.5194/se-14-409-2023, https://doi.org/10.5194/se-14-409-2023, 2023
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We measured water distributions in deformed quartz by infrared spectroscopy mapping and used the results to discuss changes in water distribution resulting from textural development. Because of the grain size reduction process (dynamic recrystallization), water contents decrease from 40–1750 wt ppm in host grains of ~2 mm to 100–510 wt ppm in recrystallized regions composed of fine grains of ~10 µm. Our results indicate that water is released and homogenized by dynamic recrystallization.
Bastien Walter, Yves Géraud, Alexiane Favier, Nadjib Chibati, and Marc Diraison
EGUsphere, https://doi.org/10.5194/egusphere-2023-397, https://doi.org/10.5194/egusphere-2023-397, 2023
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Lake Abhe in southwestern Djibouti is known for its exposures of massive hydrothermal chimneys and hot springs on the lake’s eastern shore. This study highlights the control of the main structural faults of the area on the development of these hydrothermal features. This work contributes to better understand hydrothermal fluid pathways in this area and may help further exploration for the geothermal development of this remarkable site.
Michael Rudolf, Matthias Rosenau, and Onno Oncken
Solid Earth, 14, 311–331, https://doi.org/10.5194/se-14-311-2023, https://doi.org/10.5194/se-14-311-2023, 2023
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Analogue models of tectonic processes rely on the reproduction of their geometry, kinematics and dynamics. An important property is fault behaviour, which is linked to the frictional characteristics of the fault gouge. This is represented by granular materials, such as quartz sand. In our study we investigate the time-dependent frictional properties of various analogue materials and highlight their impact on the suitability of these materials for analogue models focusing on fault reactivation.
Jessica Barabasch, Joyce Schmatz, Jop Klaver, Alexander Schwedt, and Janos L. Urai
Solid Earth, 14, 271–291, https://doi.org/10.5194/se-14-271-2023, https://doi.org/10.5194/se-14-271-2023, 2023
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We analysed Zechstein salt with microscopes and observed specific microstructures that indicate much faster deformation in rock salt with fine halite grains when compared to salt with larger grains. This is important because people build large cavities in the subsurface salt for energy storage or want to deposit radioactive waste inside it. When engineers and scientists use grain-size data and equations that include this mechanism, it will help to make better predictions in geological models.
Nicolás Molnar and Susanne Buiter
Solid Earth, 14, 213–235, https://doi.org/10.5194/se-14-213-2023, https://doi.org/10.5194/se-14-213-2023, 2023
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Progression of orogenic wedges over pre-existing extensional structures is common in nature, but deciphering the spatio-temporal evolution of deformation from the geological record remains challenging. Our laboratory experiments provide insights on how horizontal stresses are transferred across a heterogeneous crust, constrain which pre-shortening conditions can either favour or hinder the reactivatation of extensional structures, and explain what implications they have on critical taper theory.
Tania Habel, Martine Simoes, Robin Lacassin, Daniel Carrizo, and German Aguilar
Solid Earth, 14, 17–42, https://doi.org/10.5194/se-14-17-2023, https://doi.org/10.5194/se-14-17-2023, 2023
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The Central Andes are one of the most emblematic reliefs on Earth, but their western flank remains understudied. Here we explore two rare key sites in the hostile conditions of the Atacama desert to build cross-sections, quantify crustal shortening, and discuss the timing of this deformation at ∼20–22°S. We propose that the structures of the Western Andes accommodated significant crustal shortening here, but only during the earliest stages of mountain building.
Naïm Célini, Frédéric Mouthereau, Abdeltif Lahfid, Claude Gout, and Jean-Paul Callot
Solid Earth, 14, 1–16, https://doi.org/10.5194/se-14-1-2023, https://doi.org/10.5194/se-14-1-2023, 2023
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We investigate the peak temperature of sedimentary rocks of the SW Alps (France), using Raman spectroscopy on carbonaceous material. This method provides an estimate of the peak temperature achieved by organic-rich rocks. To determine the timing and the tectonic context of the origin of these temperatures we use 1D thermal modelling. We find that the high temperatures up to 300 °C were achieved during precollisional extensional events, not during tectonic burial in the Western Alps.
Luke N. J. Wedmore, Tess Turner, Juliet Biggs, Jack N. Williams, Henry M. Sichingabula, Christine Kabumbu, and Kawawa Banda
Solid Earth, 13, 1731–1753, https://doi.org/10.5194/se-13-1731-2022, https://doi.org/10.5194/se-13-1731-2022, 2022
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Mapping and compiling the attributes of faults capable of hosting earthquakes are important for the next generation of seismic hazard assessment. We document 18 active faults in the Luangwa Rift, Zambia, in an active fault database. These faults are between 9 and 207 km long offset Quaternary sediments, have scarps up to ~30 m high, and are capable of hosting earthquakes from Mw 5.8 to 8.1. We associate the Molaza Fault with surface ruptures from two unattributed M 6+ 20th century earthquakes.
Michał P. Michalak, Lesław Teper, Florian Wellmann, Jerzy Żaba, Krzysztof Gaidzik, Marcin Kostur, Yuriy P. Maystrenko, and Paulina Leonowicz
Solid Earth, 13, 1697–1720, https://doi.org/10.5194/se-13-1697-2022, https://doi.org/10.5194/se-13-1697-2022, 2022
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When characterizing geological/geophysical surfaces, various geometric attributes are calculated, such as dip angle (1D) or dip direction (2D). However, the boundaries between specific values may be subjective and without optimization significance, resulting from using default color palletes. This study proposes minimizing cosine distance among within-cluster observations to detect 3D anomalies. Our results suggest that the method holds promise for identification of megacylinders or megacones.
Erik M. Young, Christie D. Rowe, and James D. Kirkpatrick
Solid Earth, 13, 1607–1629, https://doi.org/10.5194/se-13-1607-2022, https://doi.org/10.5194/se-13-1607-2022, 2022
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Studying how earthquakes spread deep within the faults they originate from is crucial to improving our understanding of the earthquake process. We mapped preserved ancient earthquake surfaces that are now exposed in South Africa and studied their relationship with the shape and type of rocks surrounding them. We determined that these surfaces are not random and are instead associated with specific kinds of rocks and that their shape is linked to the evolution of the faults in which they occur.
Sivaji Lahiri, Kitty L. Milliken, Peter Vrolijk, Guillaume Desbois, and Janos L. Urai
Solid Earth, 13, 1513–1539, https://doi.org/10.5194/se-13-1513-2022, https://doi.org/10.5194/se-13-1513-2022, 2022
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Understanding the mechanism of mechanical compaction is important. Previous studies on mechanical compaction were mostly done by performing experiments. Studies on natural rocks are rare due to compositional heterogeneity of the sedimentary succession with depth. Due to remarkable similarity in composition and grain size, the Sumatra subduction complex provides a unique opportunity to study the micromechanism of mechanical compaction on natural samples.
Dongwon Lee, Nikolaos Karadimitriou, Matthias Ruf, and Holger Steeb
Solid Earth, 13, 1475–1494, https://doi.org/10.5194/se-13-1475-2022, https://doi.org/10.5194/se-13-1475-2022, 2022
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This research article focuses on filtering and segmentation methods employed in high-resolution µXRCT studies for crystalline rocks, bearing fractures, or fracture networks, of very small aperture. Specifically, we focus on the identification of artificially induced (via quenching) fractures in Carrara marble samples. Results from the same dataset from all five different methods adopted were produced and compared with each other in terms of their output quality and time efficiency.
Alberto Ceccato, Giulia Tartaglia, Marco Antonellini, and Giulio Viola
Solid Earth, 13, 1431–1453, https://doi.org/10.5194/se-13-1431-2022, https://doi.org/10.5194/se-13-1431-2022, 2022
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The Earth's surface is commonly characterized by the occurrence of fractures, which can be mapped, and their can be geometry quantified on digital representations of the surface at different scales of observation. Here we present a series of analytical and statistical tools, which can aid the quantification of fracture spatial distribution at different scales. In doing so, we can improve our understanding of how fracture geometry and geology affect fluid flow within the fractured Earth crust.
Giulio Viola, Giovanni Musumeci, Francesco Mazzarini, Lorenzo Tavazzani, Manuel Curzi, Espen Torgersen, Roelant van der Lelij, and Luca Aldega
Solid Earth, 13, 1327–1351, https://doi.org/10.5194/se-13-1327-2022, https://doi.org/10.5194/se-13-1327-2022, 2022
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A structural-geochronological approach helps to unravel the Zuccale Fault's architecture. By mapping its internal structure and dating some of its fault rocks, we constrained a deformation history lasting 20 Myr starting at ca. 22 Ma. Such long activity is recorded by now tightly juxtaposed brittle structural facies, i.e. different types of fault rocks. Our results also have implications on the regional evolution of the northern Apennines, of which the Zuccale Fault is an important structure.
Wan-Lin Hu
Solid Earth, 13, 1281–1290, https://doi.org/10.5194/se-13-1281-2022, https://doi.org/10.5194/se-13-1281-2022, 2022
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Having a seismic image is generally expected to enable us to better determine fault geometry and thus estimate geological slip rates accurately. However, the process of interpreting seismic images may introduce unintended uncertainties, which have not yet been widely discussed. Here, a case of a shear fault-bend fold in the frontal Himalaya is used to demonstrate how differences in interpretations can affect the following estimates of slip rates and dependent conclusions.
Manuel D. Menzel, Janos L. Urai, Estibalitz Ukar, Thierry Decrausaz, and Marguerite Godard
Solid Earth, 13, 1191–1218, https://doi.org/10.5194/se-13-1191-2022, https://doi.org/10.5194/se-13-1191-2022, 2022
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Mantle rocks can bind large quantities of carbon by reaction with CO2, but this capacity requires fluid pathways not to be clogged by carbonate. We studied mantle rocks from Oman to understand the mechanisms allowing their transformation into carbonate and quartz. Using advanced imaging techniques, we show that abundant veins were essential fluid pathways driving the reaction. Our results show that tectonic stress was important for fracture opening and a key ingredient for carbon fixation.
Jean-Baptiste P. Koehl, Steffen G. Bergh, and Arthur G. Sylvester
Solid Earth, 13, 1169–1190, https://doi.org/10.5194/se-13-1169-2022, https://doi.org/10.5194/se-13-1169-2022, 2022
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The San Andreas fault is a major active fault associated with ongoing earthquake sequences in southern California. The present study investigates the development of the Indio Hills area in the Coachella Valley along the main San Andreas fault and the Indio Hills fault. The Indio Hills area is located near an area with high ongoing earthquake activity (Brawley seismic zone), and, therefore, its recent tectonic evolution has implications for earthquake prediction.
Jin Lai, Dong Li, Yong Ai, Hongkun Liu, Deyang Cai, Kangjun Chen, Yuqiang Xie, and Guiwen Wang
Solid Earth, 13, 975–1002, https://doi.org/10.5194/se-13-975-2022, https://doi.org/10.5194/se-13-975-2022, 2022
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(1) Structural diagenesis analysis is performed on the ultra-deep tight sandstone. (2) Fracture and intergranular pores are related to the low in situ stress magnitudes. (3) Dissolution is associated with the presence of fracture.
Hamed Fazlikhani, Wolfgang Bauer, and Harald Stollhofen
Solid Earth, 13, 393–416, https://doi.org/10.5194/se-13-393-2022, https://doi.org/10.5194/se-13-393-2022, 2022
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Interpretation of newly acquired FRANKEN 2D seismic survey data in southeeastern Germany shows that upper Paleozoic low-grade metasedimentary rocks and possible nappe units are transported by Variscan shear zones to ca. 65 km west of the Franconian Fault System (FFS). We show that the locations of post-Variscan upper Carboniferous–Permian normal faults and associated graben and half-graben basins are controlled by the geometry of underlying Variscan shear zones.
Xiaodong Ma, Marian Hertrich, Florian Amann, Kai Bröker, Nima Gholizadeh Doonechaly, Valentin Gischig, Rebecca Hochreutener, Philipp Kästli, Hannes Krietsch, Michèle Marti, Barbara Nägeli, Morteza Nejati, Anne Obermann, Katrin Plenkers, Antonio P. Rinaldi, Alexis Shakas, Linus Villiger, Quinn Wenning, Alba Zappone, Falko Bethmann, Raymi Castilla, Francisco Seberto, Peter Meier, Thomas Driesner, Simon Loew, Hansruedi Maurer, Martin O. Saar, Stefan Wiemer, and Domenico Giardini
Solid Earth, 13, 301–322, https://doi.org/10.5194/se-13-301-2022, https://doi.org/10.5194/se-13-301-2022, 2022
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Questions on issues such as anthropogenic earthquakes and deep geothermal energy developments require a better understanding of the fractured rock. Experiments conducted at reduced scales but with higher-resolution observations can shed some light. To this end, the BedrettoLab was recently established in an existing tunnel in Ticino, Switzerland, with preliminary efforts to characterize realistic rock mass behavior at the hectometer scale.
Berit Schwichtenberg, Florian Fusseis, Ian B. Butler, and Edward Andò
Solid Earth, 13, 41–64, https://doi.org/10.5194/se-13-41-2022, https://doi.org/10.5194/se-13-41-2022, 2022
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Hydraulic rock properties such as porosity and permeability are relevant factors that have an impact on groundwater resources, geological repositories and fossil fuel reservoirs. We investigate the influence of chemical compaction upon the porosity evolution in salt–biotite mixtures and related transport length scales by conducting laboratory experiments in combination with 4-D analysis. Our observations invite a renewed discussion of the effect of sheet silicates on chemical compaction.
David Healy and Stephen Paul Hicks
Solid Earth, 13, 15–39, https://doi.org/10.5194/se-13-15-2022, https://doi.org/10.5194/se-13-15-2022, 2022
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The energy transition requires operations in faulted rocks. To manage the technical challenges and public concern over possible induced earthquakes, we need to quantify the risks. We calculate the probability of fault slip based on uncertain inputs, stresses, fluid pressures, and the mechanical properties of rocks in fault zones. Our examples highlight the specific gaps in our knowledge. Citizen science projects could produce useful data and include the public in the discussions about hazards.
Manuel I. de Paz-Álvarez, Thomas G. Blenkinsop, David M. Buchs, George E. Gibbons, and Lesley Cherns
Solid Earth, 13, 1–14, https://doi.org/10.5194/se-13-1-2022, https://doi.org/10.5194/se-13-1-2022, 2022
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We describe a virtual geological mapping course implemented in response to travelling and social restrictions derived from the ongoing COVID-19 pandemic. The course was designed to replicate a physical mapping exercise as closely as possible with the aid of real field data and photographs collected by the authors during previous years in the Cantabrian Zone (NW Spain). The course is delivered through Google Earth via a KMZ file with outcrop descriptions and links to GitHub-hosted photographs.
Yueyang Xia, Jacob Geersen, Dirk Klaeschen, Bo Ma, Dietrich Lange, Michael Riedel, Michael Schnabel, and Heidrun Kopp
Solid Earth, 12, 2467–2477, https://doi.org/10.5194/se-12-2467-2021, https://doi.org/10.5194/se-12-2467-2021, 2021
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The 2 June 1994 Java tsunami earthquake ruptured in a seismically quiet subduction zone and generated a larger-than-expected tsunami. Here, we re-process a seismic line across the rupture area. We show that a subducting seamount is located up-dip of the mainshock in a region that did not rupture during the earthquake. Seamount subduction modulates the topography of the marine forearc and acts as a seismic barrier in the 1994 earthquake rupture.
Steffen Abe and Hagen Deckert
Solid Earth, 12, 2407–2424, https://doi.org/10.5194/se-12-2407-2021, https://doi.org/10.5194/se-12-2407-2021, 2021
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We use numerical simulations and laboratory experiments on rock samples to investigate how stress conditions influence the geometry and roughness of fracture surfaces. The roughness of the surfaces was analyzed in terms of absolute roughness and scaling properties. The results show that the surfaces are self-affine but with different scaling properties between the numerical models and the real rock samples. Results suggest that stress conditions have little influence on the surface roughness.
Chao Deng, Rixiang Zhu, Jianhui Han, Yu Shu, Yuxiang Wu, Kefeng Hou, and Wei Long
Solid Earth, 12, 2327–2350, https://doi.org/10.5194/se-12-2327-2021, https://doi.org/10.5194/se-12-2327-2021, 2021
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This study uses seismic reflection data to interpret the geometric relationship and evolution of intra-basement and rift-related structures in the Enping sag in the northern South China Sea. Our observations suggest the primary control of pre-existing thrust faults is the formation of low-angle normal faults, with possible help from low-friction materials, and the significant role of pre-existing basement thrust faults in fault geometry, paleotopography, and syn-rift stratigraphy of rift basins.
Sonia Yeung, Marnie Forster, Emmanuel Skourtsos, and Gordon Lister
Solid Earth, 12, 2255–2275, https://doi.org/10.5194/se-12-2255-2021, https://doi.org/10.5194/se-12-2255-2021, 2021
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We do not know when the ancient Tethys Ocean lithosphere began to founder, but one clue can be found in subduction accreted tectonic slices, including Gondwanan basement terranes on the island of Ios, Cyclades, Greece. We propose a 250–300 km southwards jump of the subduction megathrust with a period of flat-slab subduction followed by slab break-off. The initiation and its subsequent rollback of a new subduction zone would explain the onset of Oligo–Miocene extension and accompanying magmatism.
Rahul Prabhakaran, Giovanni Bertotti, Janos Urai, and David Smeulders
Solid Earth, 12, 2159–2209, https://doi.org/10.5194/se-12-2159-2021, https://doi.org/10.5194/se-12-2159-2021, 2021
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Rock fractures are organized as networks with spatially varying arrangements. Due to networks' influence on bulk rock behaviour, it is important to quantify network spatial variation. We utilize an approach where fracture networks are treated as spatial graphs. By combining graph similarity measures with clustering techniques, spatial clusters within large-scale fracture networks are identified and organized hierarchically. The method is validated on a dataset with nearly 300 000 fractures.
Olivier Lacombe, Nicolas E. Beaudoin, Guilhem Hoareau, Aurélie Labeur, Christophe Pecheyran, and Jean-Paul Callot
Solid Earth, 12, 2145–2157, https://doi.org/10.5194/se-12-2145-2021, https://doi.org/10.5194/se-12-2145-2021, 2021
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This paper aims to illustrate how the timing and duration of contractional deformation associated with folding in orogenic forelands can be constrained by the dating of brittle mesostructures observed in folded strata. The study combines new and already published absolute ages of fractures to provide, for the first time, an educated discussion about the factors controlling the duration of the sequence of deformation encompassing layer-parallel shortening, fold growth, and late fold tightening.
Vincent Famin, Hugues Raimbourg, Muriel Andreani, and Anne-Marie Boullier
Solid Earth, 12, 2067–2085, https://doi.org/10.5194/se-12-2067-2021, https://doi.org/10.5194/se-12-2067-2021, 2021
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Sediments accumulated in accretionary prisms are deformed by the compression imposed by plate subduction. Here we show that deformation of the sediments transforms some minerals in them. We suggest that these mineral transformations are due to the proliferation of microorganisms boosted by deformation. Deformation-enhanced microbial proliferation may change our view of sedimentary and tectonic processes in subduction zones.
Marta Adamuszek, Dan M. Tămaş, Jessica Barabasch, and Janos L. Urai
Solid Earth, 12, 2041–2065, https://doi.org/10.5194/se-12-2041-2021, https://doi.org/10.5194/se-12-2041-2021, 2021
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We analyse folded multilayer sequences in the Ocnele Mari salt mine (Romania) to gain insight into the long-term rheological behaviour of rock salt. Our results indicate the large role of even a small number of impurities in the rock salt for its effective mechanical behaviour. We demonstrate how the development of folds that occur at various scales can be used to constrain the viscosity ratio in the deformed multilayer sequence.
Cited articles
Anderson, E. M.: The dynamics of faulting, Trans. Edinburgh Geol. Soc., 8, 387–402, https://doi.org/10.1144/transed.8.3.387, 1905. a
Anderson, E. M.: The Dynamics of Faulting and Dyke Formation with Application to Britain, in: 2nd Edn., Oliver and Boyd, London, Edinburgh, 1951. a
Barton, C. A. and Zoback, M. D.: Stress perturbations associated with active faults penetrated by boreholes: Possible evidence for near-complete stress drop and a new technique for stress magnitude measurement, J. Geophys. Res.-Solid, 99, 9373–9390, https://doi.org/10.1029/93JB03359, 1994. a, b, c
Bell, J. S.: In situ stresses in sedimentary rocks (part 2): Applications of stress measurements, Geoscience Canada, 23, 135–153, 1996. a
Bird, P. and Xianghong Kong: Computer simulations of California tectonics confirm very low strength of major faults, Geol. Soc. Am. Bull. 106, 159–174, https://doi.org/10.1130/0016-7606(1994)106<0159:CSOCTC>2.3.CO;2, 1994. a, b
Bjarnason, B., Zellman, O., and Wikberg, P.: Drilling and borehole description, in: Interdisciplinary study of post-glacial faulting in the Lansjäv area Northern Sweden 1986–1988, chap. 7, skb tr 89-edn., edited by: Bäckblom, G. and Stanfors, R., SKB – Svensk Kärnbränslehantering Aktiebolag, 7:1–7:14, https://inis.iaea.org/search/search.aspx?orig_q=RN:21074708 (last access: 13 February 2024), 1989. a, b, c
Blanpied, M. L., Lockner, D. A., and Byerlee, J. D.: An earthquake mechanism based on rapid sealing of faults, Nature, 358, 574–576, https://doi.org/10.1038/358574a0, 1992. a, b
Blöcher, G., Cacace, M., Jacquey, A. B., Zang, A., Heidbach, O., Hofmann, H., Kluge, C., and Zimmermann, G.: Evaluating Micro-Seismic Events Triggered by Reservoir Operations at the Geothermal Site of Groß Schönebeck (Germany), Rock Mech. Rock Eng., 51, 3265–3279, https://doi.org/10.1007/s00603-018-1521-2, 2018. a
Boulton, C., Yao, L., Faulkner, D. R., Townend, J., Toy, V. G., Sutherland, R., Ma, S., and Shimamoto, T.: High-velocity frictional properties of Alpine Fault rocks: Mechanical data, microstructural analysis, and implications for rupture propagation, J. Struct. Geol., 97, 71–92, https://doi.org/10.1016/j.jsg.2017.02.003, 2017. a
Brace, W. F. and Kohlstedt, D. L.: Limits on lithospheric stress imposed by laboratory experiments, J. Geophys. Res., 85, 6248, https://doi.org/10.1029/JB085iB11p06248, 1980. a
Brodsky, E. E., Mori, J. J., Anderson, L., Chester, F. M., Conin, M., Dunham, E. M., Eguchi, N., Fulton, P. M., Hino, R., Hirose, T., Ikari, M. J., Ishikawa, T., Jeppson, T., Kano, Y., Kirkpatrick, J., Kodaira, S., Lin, W., Nakamura, Y., Rabinowitz, H. S., Regalla, C., Remitti, F., Rowe, C., Saffer, D. M., Saito, S., Sample, J., Sanada, Y., Savage, H. M., Sun, T., Toczko, S., Ujiie, K., Wolfson-Schwehr, M., and Yang, T.: The State of Stress on the Fault Before, During, and after a Major Earthquake, Annu. Rev. Earth Planet. Sci., 48, 49–74, https://doi.org/10.1146/annurev-earth-053018-060507, 2020. a, b
Brudy, M., Zoback, M. D., Fuchs, K., Rummel, F., and Baumgärtner, J.: Estimation of the complete stress tensor to 8 km depth in the KTB scientific drill holes: Implications for crustal strength, J. Geophys. Res.-Solid, 102, 18453–18475, https://doi.org/10.1029/96JB02942, 1997. a, b
Buchmann, T. J. and Connolly, P. T.: Contemporary kinematics of the Upper Rhine Graben: A 3D finite element approach, Global Planet. Change, 58, 287–309, https://doi.org/10.1016/j.gloplacha.2007.02.012, 2007. a, b
Burov, E. B. and Diament, M.: The effective elastic thickness (Te) of continental lithosphere: what does it really mean?, J. Geophys. Res., 100, 3905–3927, https://doi.org/10.1029/94JB02770, 1995. a
Byerlee, J.: Friction of Rocks, Pure Appl. Geophys., 116, 615–626, https://doi.org/10.1007/BF00876528, 1978. a, b, c
Byerlee, J.: Model for episodic flow of high-pressure water in fault zones before earthquakes, Geology, 21, 303–306, https://doi.org/10.1130/0091-7613(1993)021<0303:MFEFOH>2.3.CO;2, 1993. a, b
Caine, J. S., Evans, J. P., and Forster, C. B.: Fault zone architecture and permeability structure, Geology, 24, 1025, https://doi.org/10.1130/0091-7613(1996)024<1025:FZAAPS>2.3.CO;2, 1996. a, b
Camac, B. A. and Hunt, S. P.: Predicting the regional distribution of fracture networks using the distinct element numerical method, AAPG Bull., 93, 1571–1583, https://doi.org/10.1306/07230909040, 2009. a, b, c
Cappa, F.: Modelling fluid transfer and slip in a fault zone when integrating heterogeneous hydromechanical characteristics in its internal structure, Geophys. J. Int., 178, 1357–1362, https://doi.org/10.1111/j.1365-246X.2009.04291.x, 2009. a
Cappa, F. and Rutqvist, J.: Impact of CO2 geological sequestration on the nucleation of earthquakes, Geophys. Res. Lett., 38, 2–7, https://doi.org/10.1029/2011GL048487, 2011. a, b
Carena, S. and Moder, C.: The strength of faults in the crust in the western United States, Earth Planet. Sc. Lett., 287, 373–384, https://doi.org/10.1016/j.epsl.2009.08.021, 2009. a, b
Carpenter, B. M., Saffer, D. M., and Marone, C.: Frictional properties of the active San Andreas Fault at SAFOD: Implications for fault strength and slip behavior, J. Geophys. Res.-Solid, 120, 5273–5289, https://doi.org/10.1002/2015JB011963, 2015. a
Casey, M.: Mechanics of shear zones in isotropic dilatant materials, J. Struct. Geol., 2, 143–147, https://doi.org/10.1016/0191-8141(80)90044-9, 1980. a
Chéry, J., Zoback, M. D., and Hickman, S.: A mechanical model of the San Andreas fault and SAFOD Pilot Hole stress measurements, Geophys. Res. Lett., 31, 1–6, https://doi.org/10.1029/2004GL019521, 2004. a
Chester, F. M. and Logan, J. M.: Implications for mechanical properties of brittle faults from observations of the Punchbowl fault zone, California, Pure Appl. Geophys., 124, 79–106, https://doi.org/10.1007/BF00875720, 1986. a
Childs, C., Manzocchi, T., Walsh, J. J., Bonson, C. G., Nicol, A., and Schöpfer, M. P. J.: A geometric model of fault zone and fault rock thickness variations, J. Struct. Geol., 31, 117–127, https://doi.org/10.1016/j.jsg.2008.08.009, 2009. a
Cundall, P. A. and Hart, R. D.: Numerical Modelling of Discontinua, Eng. Comput., 9, 101–113, https://doi.org/10.1108/eb023851, 1992. a
Dart, R. L. and Swolfs, H. S.: Subparallel faults and horizontal-stress orientations: An evaluation of in-situ stresses inferred from elliptical wellbore enlargements, Norweg. Petrol. Soc. Spec. Publ., 1, 519–529, https://doi.org/10.1016/B978-0-444-88607-1.50041-3, 1992. a
de Joussineau, G., Petit, J. P., and Gauthier, B. D.: Photoelastic and numerical investigation of stress distributions around fault models under biaxial compressive loading conditions, Tectonophysics, 363, 19–43, https://doi.org/10.1016/S0040-1951(02)00648-0, 2003. a
Delogkos, E., Roche, V., and Walsh, J. J.: Bed-parallel slip associated with normal fault systems, Earth-Sci. Rev., 230, 104044, https://doi.org/10.1016/j.earscirev.2022.104044, 2022. a
Desroches, J., Peyret, E., Gisolf, A., Wilcox, A., Giovanni, M. D., de Jong, A. S., Sepehri, S., Garrard, R., and Giger, S.: Stress Measurement Campaign in Scientific Deep Boreholes: Focus on Tool and Methods, in: SPWLA 62nd Annual Logging Symposium, 17–20 May 2021, online, https://doi.org/10.30632/spwla-2021-0056, 2021. a
Di Toro, G., Han, R., Hirose, T., De Paola, N., Nielsen, S., Mizoguchi, K., Ferri, F., Cocco, M., and Shimamoto, T.: Fault lubrication during earthquakes, Nature, 471, 494–499, https://doi.org/10.1038/nature09838, 2011. a, b, c
Faulkner, D. R., Lewis, A. C., and Rutter, E. H.: On the internal structure and mechanics of large strike-slip fault zones: Field observations of the Carboneras fault in southeastern Spain, Tectonophysics, 367, 235–251, https://doi.org/10.1016/S0040-1951(03)00134-3, 2003. a, b
Faulkner, D. R., Jackson, C. A., Lunn, R. J., Schlische, R. W., Shipton, Z. K., Wibberley, C. A., and Withjack, M. O.: A review of recent developments concerning the structure, mechanics and fluid flow properties of fault zones, J. Struct. Geol., 32, 1557–1575, https://doi.org/10.1016/j.jsg.2010.06.009, 2010. a
Ferreira, J. M., Oliveira, R. T., Takeya, M. K., and Assumpção, M.: Superposition of local and regional stresses in northeast Brazil: evidence from focal mechanisms around the Potiguar marginal basin, Geophys. J. Int., 134, 341–355, https://doi.org/10.1046/j.1365-246X.1998.00563.x, 1998. a, b
Ferrill, D. A., Smart, K. J., and Morris, A. P.: Fault failure modes, deformation mechanisms, dilation tendency, slip tendency, and conduits v. Seals, Geol. Soc. Spec. Publ., 496, 75–98, https://doi.org/10.1144/SP496-2019-7, 2020. a
Fitzenz, D. D. and Miller, S. A.: A forward model for earthquake generation on interacting faults including tectonics, fluids, and stress transfer, J. Geophys. Res.-Solid, 106, 26689–26706, https://doi.org/10.1029/2000jb000029, 2001. a
Franceschini, A., Ferronato, M., Janna, C., and Teatini, P.: A novel Lagrangian approach for the stable numerical simulation of fault and fracture mechanics, J. Comput. Phys., 314, 503–521, https://doi.org/10.1016/j.jcp.2016.03.032, 2016. a
Fuchs, K. and Müller, B.: World Stress Map of the Earth: a key to tectonic processes and technological applications, Naturwissenschaften, 88, 357–371, https://doi.org/10.1007/s001140100253, 2001. a
Fulton, P. M., Brodsky, E. E., Kano, Y., Mori, J., Chester, F., Ishikawa, T., Harris, R. N., Lin, W., Eguchi, N., and Toczko, S.: Low coseismic friction on the Tohoku-Oki fault determined from temperature measurements, Science, 342, 1214–1217, https://doi.org/10.1126/science.1243641, 2013. a, b
Hafner, W.: Stress distributions and faulting, Bull. Geol. Soc. Am., 62, 373–398, https://doi.org/10.1130/0016-7606(1951)62[373:SDAF]2.0.CO;2, 1951. a
Hardebeck, J. L. and Okada, T.: Temporal Stress Changes Caused by Earthquakes: A Review, J. Geophys. Res.-Solid, 123, 1350–1365, https://doi.org/10.1002/2017JB014617, 2018. a
Heidbach, O. and Ben-Avraham, Z.: Stress evolution and seismic hazard of the Dead Sea Fault System, Earth Planet. Sc. Lett., 257, 299–312, https://doi.org/10.1016/j.epsl.2007.02.042, 2007. a
Heidbach, O. and Reiter, K.: Interner Bericht NIB 19-15 – Impact of fault properties and fault implementation strategies on results of 3D geomechanical-numerical models, Tech. Rep. March, NAGRA, Wettingen, 2019. a
Heidbach, O., Barth, A., Connolly, P. T., Fuchs, K., Müller, B., Tingay, M., Reinecker, J., Spencer, B., and Wenzel, F.: Stress Maps in a Minute: The 2004 World Stress Map Release, Eos Trans. Am. Geophys. Union, 85, 521, https://doi.org/10.1029/2004EO490001, 2004. a
Heidbach, O., Reinecker, J., Tingay, M., Müller, B., Sperner, B., Fuchs, K., and Wenzel, F.: Plate boundary forces are not enough: Second- and third-order stress patterns highlighted in the World Stress Map database, Tectonics, 26, 1–19, https://doi.org/10.1029/2007TC002133, 2007. a, b
Heidbach, O., Rajabi, M., Cui, X., Fuchs, K., Müller, B., Reinecker, J., Reiter, K., Tingay, M., Wenzel, F., Xie, F., Ziegler, M. O., Zoback, M.-L., and Zoback, M. D.: The World Stress Map database release 2016: Crustal stress pattern across scales, Tectonophysics, 744, 484–498, https://doi.org/10.1016/j.tecto.2018.07.007, 2018. a, b, c
Henk, A.: Numerical modelling of faults, in: Understanding Faults, chap. 4, Elsevier, p. 2, ISBN 9780128159859, https://doi.org/10.1016/b978-0-12-815985-9.00004-7, 2020. a
Hergert, T. and Heidbach, O.: Geomechanical model of the Marmara Sea region – II. 3-D contemporary background stress field, Geophys. J. Int., 185, 1090–1102, https://doi.org/10.1111/j.1365-246X.2011.04992.x, 2011. a
Hergert, T., Heidbach, O., Bécel, A., and Laigle, M.: Geomechanical model of the Marmara Sea region – I. 3-D contemporary kinematics, Geophys. J. Int., 185, 1073–1089, https://doi.org/10.1111/j.1365-246X.2011.04991.x, 2011. a
Hickman, S. and Zoback, M.: Stress orientations and magnitudes in the SAFOD pilot hole, Geophys. Res. Lett., 31, L15S12, https://doi.org/10.1029/2004GL020043, 2004. a, b
Homberg, C., Hu, J., Angelier, J., Bergerat, F., and Lacombe, O.: Characterization of stress perturbations near major fault zones: insights from 2-D distinct-element numerical modelling and field studies (Jura mountains), J. Struct. Geol., 19, 703–718, https://doi.org/10.1016/S0191-8141(96)00104-6, 1997. a, b
Houston, H.: Low friction and fault weakening revealed by rising sensitivity of tremor to tidal stress, Nat. Geosci., 8, 409–415, https://doi.org/10.1038/ngeo2419, 2015. a, b
Hudson, J. A. and Cooling, C. M.: In Situ rock stresses and their measurement in the U.K. – Part I. The current state of knowledge, Int. J. Rock Mech. Min. Sci., 25, 363–370, https://doi.org/10.1016/0148-9062(88)90976-X, 1988. a
Hunt, S. P., Camac, B. A., and Boult, P.: A parametric analysis and applications of the discrete element method for stress modeling, in: Proceedings of the 9th Australia New Zealand Conference on Geomechanics, 8–11 February 2004, Auckland, p. 7, 2004. a
Hyndman, R. D., Currie, C. A., Mazzotti, S., and Frederiksen, A.: Temperature control of continental lithosphere elastic thickness, Te vs Vs, Earth Planet. Sc. Lett., 277, 539–548, https://doi.org/10.1016/j.epsl.2008.11.023, 2009. a
Iaffaldano, G.: The strength of large-scale plate boundaries: Constraints from the dynamics of the Philippine Sea plate since ∼5 Ma, Earth Planet. Sc. Lett., 357–358, 21–30, https://doi.org/10.1016/j.epsl.2012.09.018, 2012. a, b
Isaacs, A. J., Evans, J. P., Kolesar, P. T., and Nohara, T.: Composition, microstructures, and petrophysics of the Mozumi fault, Japan: In situ analyses of fault zone properties and structure in sedimentary rocks from shallow crustal levels, J. Geophys. Res., 113, B12408, https://doi.org/10.1029/2007JB005314, 2008. a, b
Jaeger, J. C., Cook, N., and Zimmerman, R.: Fundamentals of rock mechanics, in: 4th Edn., Blackwell, Hoboken, New Jersey, ISBN 0632057599, 2011. a
Kattenhorn, S. A., Aydin, A., and Pollard, D. D.: Joints at high angles to normal fault strike: An explanation using 3-D numerical models of fault-perturbed stress fields, J. Struct. Geol., 22, 1–23, https://doi.org/10.1016/S0191-8141(99)00130-3, 2000. a, b
Konstantinovskaia, E., Malo, M., and Castillo, D. A.: Present-day stress analysis of the St. Lawrence Lowlands sedimentary basin (Canada) and implications for caprock integrity during CO2 injection operations, Tectonophysics, 518-521, 119–137, https://doi.org/10.1016/j.tecto.2011.11.022, 2012. a
Krietsch, H., Gischig, V., Evans, K., Doetsch, J., Dutler, N. O., Valley, B., and Amann, F.: Stress Measurements for an In Situ Stimulation Experiment in Crystalline Rock: Integration of Induced Seismicity, Stress Relief and Hydraulic Methods, Rock Mech. Rock Eng., 52, 517–542, https://doi.org/10.1007/s00603-018-1597-8, 2019. a
Kruszewski, M., Klee, G., Niederhuber, T., and Heidbach, O.: In situ stress database of the greater Ruhr region (Germany) derived from hydrofracturing tests and borehole logs, Earth Syst. Sci. Data, 14, 5367–5385, https://doi.org/10.5194/essd-14-5367-2022, 2022. a
Li, P., Cai, M., Gorjian, M., Ren, F., Xi, X., and Wang, P.: Interaction between in situ stress states and tectonic faults: A comment, Springer, https://doi.org/10.1007/s12613-023-2607-8, 2023. a, b, c, d
Lin, W., Yeh, E. C., Hung, J.-H., Haimson, B. C., and Hirono, T.: Localized rotation of principal stress around faults and fractures determined from borehole breakouts in hole B of the Taiwan Chelungpu-fault Drilling Project (TCDP), Tectonophysics, 482, 82–91, https://doi.org/10.1016/j.tecto.2009.06.020, 2010. a, b
Lin, W., Conin, M., Moore, J. C., Chester, F. M., Nakamura, Y., Mori, J. J., Anderson, L., Brodsky, E. E., Eguchi, N., Cook, B., Jeppson, T., Wolfson-Schwehr, M., Sanada, Y., Saito, S., Kido, Y., Hirose, T., Behrmann, J. H., Ikari, M., Ujiie, K., Rowe, C., Kirkpatrick, J., Bose, S., Regalla, C., Remitti, F., Toy, V., Fulton, P., Mishima, T., Yang, T., Sun, T., Ishikawa, T., Sample, J., Takai, K., Kameda, J., Toczko, S., Maeda, L., Kodaira, S., Hino, R., and Saffer, D.: Stress state in the largest displacement area of the 2011 Tohoku-Oki earthquake, Science, 339, 687–690, https://doi.org/10.1126/science.1229379, 2013. a
Lockner, D. A., Morrow, C., Moore, D., and Hickman, S. H.: Low strength of deep San Andreas fault gouge from SAFOD core, Nature, 472, 82–85, https://doi.org/10.1038/nature09927, 2011. a
Lund Snee, J.-E. and Zoback, M. D.: State of stress in the Permian Basin, Texas and New Mexico: Implications for induced seismicity, Lead. Edge, 37, 127–134, https://doi.org/10.1190/tle37020127.1, 2018. a
Lund Snee, J.-E. and Zoback, M. D.: Multiscale variations of the crustal stress field throughout North America, Nat. Commun., 11, 1951, https://doi.org/10.1038/s41467-020-15841-5, 2020. a, b
Maerten, L., Maerten, F., Lejri, M., and Gillespie, P.: Geomechanical paleostress inversion using fracture data, J. Struct. Geol., 89, 197–213, https://doi.org/10.1016/j.jsg.2016.06.007, 2016. a
McLellan, J. G., Oliver, N. H., and Schaubs, P. M.: Fluid flow in extensional environments; numerical modelling with an application to Hamersley iron ores, J. Struct. Geol., 26, 1157–1171, https://doi.org/10.1016/j.jsg.2003.11.015, 2004. a
Meier, S., Bauer, J. F., and Philipp, S. L.: Fault zones in layered carbonate successions: from field data to stress field models, Geomech. a Geophys. Geo-Energ, Geo-Resour,, 3, 61–93, https://doi.org/10.1007/s40948-016-0047-x, 2017. a, b
Mises, R. V.: Mechanik der festen Körper im plastisch-deformablen Zustand, Nachrichten von der Gesellschaft der Wissenschaften zu Göttingen, Mathematisch-Physikalische Klasse, 582–592, http://eudml.org/doc/58894 (last access: 15 December 2023), 1913. a
Moeck, I. and Backers, T.: Fault reactivation potential as a critical factor during reservoir stimulation, First Break, 29, 73–80, https://doi.org/10.3997/1365-2397.2011014, 2011. a
Morris, A. P., Ferrill, D. A., and Henderson, D. B.: Slip-tendency analysis and fault reactivation, Geology, 24, 275–278, https://doi.org/10.1130/0091-7613(1996)024<0275:STAAFR>2.3.CO;2, 1996. a
Mount, V. S. and Suppe, J.: State of stress near the San Andreas fault: Implications for wrench tectonics, Geology, 15, 1143, https://doi.org/10.1130/0091-7613(1987)15<1143:SOSNTS>2.0.CO;2, 1987. a
Mount, V. S. and Suppe, J.: Present-day stress orientations adjacent to active strike-slip faults: California and Sumatra, J. Geophys. Res., 97, 11995, https://doi.org/10.1029/92JB00130, 1992. a
Muhuri, S. K., Dewers, T. A., Scott Thurman, J. E., and Reches, Z.: Interseismic fault strengthening and earthquake-slip instability: Friction or cohesion?, Geology, 31, 881–884, https://doi.org/10.1130/G19601.1, 2003. a
Osokina, D.: Hierarchical properties of a stress field and its relation to fault displacements, J. Geodynam., 10, 331–344, https://doi.org/10.1016/0264-3707(88)90039-7, 1988. a
Pereira, L. C., Guimarães, L. J., Horowitz, B., and Sánchez, M.: Coupled hydro-mechanical fault reactivation analysis incorporating evidence theory for uncertainty quantification, Comput. Geotech., 56, 202–215, https://doi.org/10.1016/j.compgeo.2013.12.007, 2014. a
Petit, J. P. and Mattauer, M.: Palaeostress superimposition deduced from mesoscale structures in limestone: the Matelles exposure, Languedoc, France, J. Struct. Geol., 17, 245–256, https://doi.org/10.1016/0191-8141(94)E0039-2, 1995. a, b
Pierdominici, S. and Heidbach, O.: Stress field of Italy - Mean stress orientation at different depths and wave-length of the stress pattern, Tectonophysics, 532-535, 301–311, https://doi.org/10.1016/j.tecto.2012.02.018, 2012. a
Pollard, D. D. and Segall, P.: Theoretical Displacements and Stresses Near Fractures in Rock: With Applications To Faults, Joints, Veins, Dikes, and Solution Surfaces, in: Fracture Mechanics of Rock, Elsevier, 277–349, https://doi.org/10.1016/b978-0-12-066266-1.50013-2, 1987. a
Power, W. L., Tullis, T. E., Brown, S. R., Boitnott, G. N., and Scholz, C. H.: Roughness of natural fault surfaces, Geophys. Res. Lett., 14, 29–32, https://doi.org/10.1029/GL014i001p00029, 1987. a
Prévost, J. H. and Sukumar, N.: Faults simulations for three-dimensional reservoir-geomechanical models with the extended finite element method, J. Mech. Phys. Solids, 86, 1–18, https://doi.org/10.1016/j.jmps.2015.09.014, 2016. a
Provost, A. S. and Houston, H.: Orientation of the stress field surrounding the creeping section of the San Andreas Fault: Evidence for a narrow mechanically weak fault zone, J. Geophys. Res.-Solid, 106, 11373–11386, https://doi.org/10.1029/2001jb900007, 2001. a
Rajabi, M., Tingay, M., Heidbach, O., Hillis, R., and Reynolds, S. D.: The present-day stress field of Australia, Earth-Sci. Rev., 168, 165–189, https://doi.org/10.1016/j.earscirev.2017.04.003, 2016. a
Rajabi, M., Heidbach, O., Tingay, M., and Reiter, K.: Prediction of the present-day stress field in the Australian continental crust using 3D geomechanical–numerical models, Aust. J. Earth Sci., 64, 435–454, https://doi.org/10.1080/08120099.2017.1294109, 2017a. a, b
Rajabi, M., Tingay, M., Heidbach, O., Hillis, R., and Reynolds, S.: The present-day stress field of Australia, Earth-Sci. Rev., 168, 165–189, https://doi.org/10.1016/j.earscirev.2017.04.003, 2017b. a, b
Rajabi, M., Tingay, M., King, R., and Heidbach, O.: Present-day stress orientation in the Clarence-Moreton Basin of New South Wales, Australia: a new high density dataset reveals local stress rotations, Basin Res., 29, 622–640, https://doi.org/10.1111/bre.12175, 2017c. a
Rawnsley, K. D., Rives, T., Petti, J. P., Hencher, S. R., and Lumsden, A. C.: Joint development in perturbed stress fields near faults, J. Struct. Geol., 14, 939–951, https://doi.org/10.1016/0191-8141(92)90025-R, 1992. a
Reiter, K.: Stress rotation – impact and interaction of rock stiffness and faults, Solid Earth, 12, 1287–1307, https://doi.org/10.5194/se-12-1287-2021, 2021. a, b, c
Reiter, K. and Heidbach, O.: 3-D geomechanical-numerical model of the contemporary crustal stress state in the Alberta Basin (Canada), Solid Earth, 5, 1123–1149, https://doi.org/10.5194/se-5-1123-2014, 2014. a
Rispoli, R.: Stress fields about strike-slip faults inferred from stylolites and tension gashes, Tectonophysics, 75, 29–36, https://doi.org/10.1016/0040-1951(81)90274-2, 1981. a
Roche, V., Camanni, G., Childs, C., Manzocchi, T., Walsh, J., Conneally, J., Saqab, M. M., and Delogkos, E.: Variability in the three-dimensional geometry of segmented normal fault surfaces, Earth-Sci. Rev., 216, 103523, https://doi.org/10.1016/j.earscirev.2021.103523, 2021. a
Röckel, L., Ahlers, S., Müller, B., Reiter, K., Heidbach, O., Henk, A., Hergert, T., and Schilling, F.: The analysis of slip tendency of major tectonic faults in Germany, Solid Earth, 13, 1087–1105, https://doi.org/10.5194/se-13-1087-2022, 2022. a, b
Sánchez D, M. A., Vásquez, A. R., Van Alstine, D., Butterworth, J., García, J., Carmona, R., Poquioma, W., and Ramones, M.: Applications of Geomechanics in the Development of the Naturally Fractured Carbonates of the Mara Oeste Field, Venezuela, in: Latin American and Caribbean Petroleum Engineering Conference, vol. SPE 54008, SPE, Caracas, Venezuela, p. 8, ISBN 9781555633653, https://doi.org/10.2118/54008-MS, 1999. a, b
Savage, H. M. and Brodsky, E. E.: Collateral damage: Evolution with displacement of fracture distribution and secondary fault strands in fault damage zones, J. Geophys. Res.-Solid, 116, B03405, https://doi.org/10.1029/2010JB007665, 2011. a
Schellart, W. P.: Shear test results for cohesion and friction coefficients for different granular materials: Scaling implications for their usage in analogue modelling, Tectonophysics, 324, 1–16, https://doi.org/10.1016/S0040-1951(00)00111-6, 2000. a
Schoenball, M. and Davatzes, N. C.: Quantifying the heterogeneity of the tectonic stress field using borehole data, J. Geophys. Res.-Solid, 122, 6737–6756, https://doi.org/10.1002/2017JB014370, 2017. a
Schoenball, M., Walsh, F. R., Weingarten, M., and Ellsworth, W. L.: How faults wake up: The Guthrie-Langston, Oklahoma earthquakes, Lead. Edge, 37, 100–106, https://doi.org/10.1190/tle37020100.1, 2018. a
Schuite, J., Longuevergne, L., Bour, O., Burbey, T. J., Boudin, F., Lavenant, N., and Davy, P.: Understanding the Hydromechanical Behavior of a Fault Zone From Transient Surface Tilt and Fluid Pressure Observations at Hourly Time Scales, Water Resour. Res., 53, 10558–10582, https://doi.org/10.1002/2017WR020588, 2017. a
Segall, P. and Pollard, D. D.: Mechanics of discontinuous faults, J. Geophys. Res.-Solid, 85, 4337–4350, https://doi.org/10.1029/jb085ib08p04337, 1980. a, b
Seithel, R., Gaucher, E., Müller, B., Steiner, U., and Kohl, T.: Probability of fault reactivation in the Bavarian Molasse Basin, Geothermics, 82, 81–90, https://doi.org/10.1016/j.geothermics.2019.06.004, 2019. a
Shi, H., Huang, F., Ma, Z., Wang, Y., Feng, J., and Gao, X.: Mechanical Mechanism of Fault Dislocation Based on in situ Stress State, Front. Earth Sci., 8, 1–9, https://doi.org/10.3389/feart.2020.00052, 2020. a
Siler, D. L.: Structural discontinuities and their control on hydrothermal systems in the Great Basin, USA, Geoenergy, 1, geoenergy2023-009, https://doi.org/10.1144/geoenergy2023-009, 2023. a, b, c
Smart, K. J., Ofoegbu, G. I., Morris, A. P., McGinnis, R. N., and Ferrill, D. A.: Geomechanical modeling of hydraulic fracturing: Why mechanical stratigraphy, stress state, and pre-existing structure matter, AAPG Bull., 98, 2237–2261, https://doi.org/10.1306/07071413118, 2014. a
Sonder, L. J.: Effects of density contrasts on the orientation of stresses in the lithosphere: Relation to principal stress directions in the Transverse Ranges, California, Tectonics, 9, 761–771, https://doi.org/10.1029/TC009i004p00761, 1990. a
Stephansson, O. and Ångman, P.: Hydraulic Fracturing Stress Measurements At Forsmark and Stidsvig, Sweden, Bulletin of the Geological Society of Finland, 307–333, https://doi.org/10.17741/bgsf/58.1.021, 1986. a, b, c
Su, S. and Stephansson, O.: Effect of a fault on in situ stresses studied by the distinct element method, Int. J. Rock Mech. Min. Sci., 36, 1051–1056, https://doi.org/10.1016/S1365-1609(99)00119-7, 1999. a, b, c
Tamagawa, T. and Pollard, D. D.: Fracture permeability created by perturbed stress fields around active faults in a fractured basement reservoir, AAPG Bull., 92, 743–764, https://doi.org/10.1306/02050807013, 2008. a
Tenthorey, E. and Cox, S. F.: Cohesive strengthening of fault zones during the interseismic period: An experimental study, J. Geophys. Res.-Solid, 111, 1–14, https://doi.org/10.1029/2005JB004122, 2006. a, b
Tesauro, M., Kaban, M. K., and Cloetingh, S.: Global strength and elastic thickness of the lithosphere, Global Planet. Change, 90–91, 51–57, https://doi.org/10.1016/j.gloplacha.2011.12.003, 2012. a, b
Tingay, M. R., Müller, B., Reinecker, J., and Heidbach, O.: State and origin of the present-day stress field in sedimentary basins: New results from the world stress map project, in: Proceedings of the 41st U.S. Rock Mechanics Symposium – ARMA's Golden Rocks 2006 – 50 Years of Rock Mechanics, 41, American Rock Mechanics Association, Golden, Colorado, p. 14, https://www.onepetro.org/conference-paper/ARMA-06-1049 (last access: 15 December 2023), 2006. a
Tommasi, A., Vauchez, A., and Daudré, B.: Initiation and propagation of shear zones in a heterogeneous continental lithosphere, J. Geophys. Res.-Solid, 100, 22083–22101, https://doi.org/10.1029/95JB02042, 1995. a, b
Torabi, A. and Berg, S. S.: Scaling of fault attributes: A review, Mar. Petrol. Geol., 28, 1444–1460, https://doi.org/10.1016/j.marpetgeo.2011.04.003, 2011. a, b
Treffeisen, T. and Henk, A.: Elastic and frictional properties of fault zones in reservoir-scale hydro-mechanical models – a sensitivity study, Energies, 13, 25–27, https://doi.org/10.3390/en13184606, 2020a. a, b
Treffeisen, T. and Henk, A.: Representation of faults in reservoir-scale geomechanical finite element models – A comparison of different modelling approaches, J. Struct. Geol., 131, 103931, https://doi.org/10.1016/j.jsg.2019.103931, 2020b. a, b
van den Ende, M. P. A. and Niemeijer, A. R.: An investigation into the role of time-dependent cohesion in interseismic fault restrengthening, Sci. Rep., 9, 1–11, https://doi.org/10.1038/s41598-019-46241-5, 2019. a
Wang, C., Song, C., Guo, Q., Mao, J., and Zhang, Y.: New insights into stress changes before and after the Wenchuan Earthquake using hydraulic fracturing measurements, Eng. Geol., 194, 98–113, https://doi.org/10.1016/j.enggeo.2015.05.016, 2015. a, b
Xing, H. L., Makinouchi, A., and Mora, P.: Finite element modeling of interacting fault systems, Phys. Earth Planet. Inter., 163, 106–121, https://doi.org/10.1016/j.pepi.2007.05.006, 2007. a
Yale, D. P.: Fault and stress magnitude controls on variations in the orientation of in situ stress, Geol. Soc. Spec. Publ., 209, 55–64, https://doi.org/10.1144/GSL.SP.2003.209.01.06, 2003. a, b, c, d
Yoon, J. S., Zang, A., and Stephansson, O.: Numerical investigation on optimized stimulation of intact and naturally fractured deep geothermal reservoirs using hydro-mechanical coupled discrete particles joints model, Geothermics, 52, 165–184, https://doi.org/10.1016/j.geothermics.2014.01.009, 2014. a
Yoon, J. S., Stephansson, O., Zang, A., Min, K. B., and Lanaro, F.: Discrete bonded particle modelling of fault activation near a nuclear waste repository site and comparison to static rupture earthquake scaling laws, Int. J. Rock Mech. Min. Sci., 98, 1–9, https://doi.org/10.1016/j.ijrmms.2017.07.008, 2017. a
Zhang, S. and Ma, X.: How Does In Situ Stress Rotate Within a Fault Zone? Insights From Explicit Modeling of the Frictional, Fractured Rock Mass, J. Geophys. Res.-Solid, 126, 1–23, https://doi.org/10.1029/2021JB022348, 2021. a
Zhang, Y., Clennell, M. B., Delle Piane, C., Ahmed, S., and Sarout, J.: Numerical modelling of fault reactivation in carbonate rocks under fluid depletion conditions – 2D generic models with a small isolated fault, J. Struct. Geol., 93, 17–28, https://doi.org/10.1016/j.jsg.2016.10.002, 2016. a
Zhou, C., Yin, J., Luo, J., and Xiao, G.: Law of geo-stress distribution in the vicinity of fault zone, J. Yangtze River Scient. Res. Inst., 29, 57–61, https://doi.org/10.3969/j.issn.1001-5485.2012.07.013, 2012. a
Zoback, M., Hickman, S., and Ellsworth, W.: Scientific drilling into the San Andreas fault zone - An overview of SAFOD's first five years, Scient. Drill., 11, 14–28, https://doi.org/10.2204/iodp.sd.11.02.2011, 2011. a
Zoback, M. D.: Reservoir Geomechanics, Cambridge University Press, ISBN 9780511586477, https://doi.org/10.1017/CBO9780511586477, 2010. a
Zoback, M. D., Zoback, M.-L., Mount, V. S., Suppe, J., Eaton, J. P., Healy, J. H., Oppenheimer, D., Reasenberg, P., Jones, L., Raleigh, C. B., Wong, I. G., Scotti, O., and Wentworth, C.: New Evidence on the State of Stress of the San Andreas Fault System, Science, 238, 1105–1111, https://doi.org/10.1126/science.238.4830.1105, 1987. a
Short summary
It is generally assumed that faults have an influence on the stress state of the Earth’s crust. It is questionable whether this influence is still present far away from a fault. Simple numerical models were used to investigate the extent of the influence of faults on the stress state. Several models with different fault representations were investigated. The stress fluctuations further away from the fault (> 1 km) are very small.
It is generally assumed that faults have an influence on the stress state of the Earth’s crust....
