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Solid Earth
An interactive open-access journal of the European Geosciences Union
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IF2.921
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3.087
3.087
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4.8
4.8
SNIP1.314
IPP2.87
SJR0.993
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index38
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Volume 6, issue 3
Solid Earth, 6, 839–855, 2015
https://doi.org/10.5194/se-6-839-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/se-6-839-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Solid Earth, 6, 839–855, 2015
https://doi.org/10.5194/se-6-839-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/se-6-839-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article 21 Jul 2015
Research article | 21 Jul 2015
Evolution of a highly dilatant fault zone in the grabens of Canyonlands National Park, Utah, USA – integrating fieldwork, ground-penetrating radar and airborne imagery analysis
M. Kettermann et al.
Related authors
Christopher Weismüller, Janos L. Urai, Michael Kettermann, Christoph von Hagke, and Klaus Reicherter
Solid Earth, 10, 1757–1784, https://doi.org/10.5194/se-10-1757-2019, https://doi.org/10.5194/se-10-1757-2019, 2019
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We use drones to study surface geometries of massively dilatant faults (MDFs) in Iceland, with apertures up to tens of meters at the surface. Based on throw, aperture and structures, we define three geometrically different endmembers of the surface expression of MDFs and show that they belong to one continuum. The transition between the endmembers is fluent and can change at one fault over short distances, implying less distinct control of deeper structures on surface geometries than expected.
Michael Kettermann, Christoph von Hagke, Heijn W. van Gent, Christoph Grützner, and Janos L. Urai
Solid Earth, 7, 843–856, https://doi.org/10.5194/se-7-843-2016, https://doi.org/10.5194/se-7-843-2016, 2016
Short summary
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We present an analogue modeling study on the interaction of pre-existing joints and normal faults using cohesive powder. We vary the angle between joints and a rigid basement fault and analyze interpreted map-view photographs at maximum displacement for various parameters and compare to nature. Results show a clear effect of increasing angle between joints and faults on fault geometry, fracture density and connectivity. These information can help interpreting fractured layers in the subsurface.
Michael Kettermann, Sebastian Thronberens, Oscar Juarez, Janos Lajos Urai, Martin Ziegler, Sven Asmus, and Ulrich Krüger
Solid Earth, 7, 789–815, https://doi.org/10.5194/se-7-789-2016, https://doi.org/10.5194/se-7-789-2016, 2016
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We present exceptional 3-D outcrop data of clay smears in freshly cut trenches of Miocene unconsolidated deltaic clay–sand sequences in an active lignite quarry in the Lower Rhine Embayment. We aim to identify and investigate processes that entrain clay into a fault or breach of formed clay smear. We show the importance of host rock deformation, grain-scale mixing and source layering on clay smear geometry by providing 2-D cross sections and 3-D thickness data of complete clay smear sequences.
Sarah Mader, Joachim R. R. Ritter, Klaus Reicherter, and the AlpArray Working Group
Solid Earth Discuss., https://doi.org/10.5194/se-2020-167, https://doi.org/10.5194/se-2020-167, 2020
Preprint under review for SE
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The Albstadt Shear Zone, SW Germany, is an active rupture zone with sometimes damaging earthquakes but no visible surface structure. To identify its segmentations, geometry, faulting pattern and extension, we analyze the continuous earthquake activity 2011–2018. We find a segmented N-S oriented fault zone with mainly horizontal and minor vertical movement along preferably NNE and some NNW oriented rupture planes. The main horizontal stress is oriented NW and due to Alpine-related loading.
Christopher Weismüller, Rahul Prabhakaran, Martijn Passchier, Janos L. Urai, Giovanni Bertotti, and Klaus Reicherter
Solid Earth, 11, 1773–1802, https://doi.org/10.5194/se-11-1773-2020, https://doi.org/10.5194/se-11-1773-2020, 2020
Short summary
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We photographed a fractured limestone pavement with a drone to compare manual and automatic fracture tracing and analyze the evolution and spatial variation of the fracture network in high resolution. We show that automated tools can produce results comparable to manual tracing in shorter time but do not yet allow the interpretation of fracture generations. This work pioneers the automatic fracture mapping of a complete outcrop in detail, and the results can be used as fracture benchmark.
Christopher Weismüller, Janos L. Urai, Michael Kettermann, Christoph von Hagke, and Klaus Reicherter
Solid Earth, 10, 1757–1784, https://doi.org/10.5194/se-10-1757-2019, https://doi.org/10.5194/se-10-1757-2019, 2019
Short summary
Short summary
We use drones to study surface geometries of massively dilatant faults (MDFs) in Iceland, with apertures up to tens of meters at the surface. Based on throw, aperture and structures, we define three geometrically different endmembers of the surface expression of MDFs and show that they belong to one continuum. The transition between the endmembers is fluent and can change at one fault over short distances, implying less distinct control of deeper structures on surface geometries than expected.
Mjahid Zebari, Christoph Grützner, Payman Navabpour, and Kamil Ustaszewski
Solid Earth, 10, 663–682, https://doi.org/10.5194/se-10-663-2019, https://doi.org/10.5194/se-10-663-2019, 2019
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Here, we assessed the maturity level and then relative variation of uplift time of three anticlines along the hanging wall of the Zagros Mountain Front Flexure in the Kurdistan Region of Iraq. We also estimated the relative time difference between the uplift time of more mature anticlines and less mature ones to be around 200 kyr via building a landscape evolution model. These enabled us to reconstruct a spatial and temporal evolution of these anticlines.
Sajid Ali, Peter Biermanns, Rashid Haider, and Klaus Reicherter
Nat. Hazards Earth Syst. Sci., 19, 999–1022, https://doi.org/10.5194/nhess-19-999-2019, https://doi.org/10.5194/nhess-19-999-2019, 2019
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The Karakoram Highway (KKH) is an important physical connection between Pakistan and China. Landslides have been a major threat to its stability since its construction. After the announcement of the China–Pakistan Economic Corridor (CPEC), KKH has had more importance. Geoscientists from research institutions in both countries are assessing landslide hazard and risk along the highway. In a PhD project, this paper will be followed by a detailed analysis of mass movements along the highway.
Michael Kettermann, Christoph von Hagke, Heijn W. van Gent, Christoph Grützner, and Janos L. Urai
Solid Earth, 7, 843–856, https://doi.org/10.5194/se-7-843-2016, https://doi.org/10.5194/se-7-843-2016, 2016
Short summary
Short summary
We present an analogue modeling study on the interaction of pre-existing joints and normal faults using cohesive powder. We vary the angle between joints and a rigid basement fault and analyze interpreted map-view photographs at maximum displacement for various parameters and compare to nature. Results show a clear effect of increasing angle between joints and faults on fault geometry, fracture density and connectivity. These information can help interpreting fractured layers in the subsurface.
Michael Kettermann, Sebastian Thronberens, Oscar Juarez, Janos Lajos Urai, Martin Ziegler, Sven Asmus, and Ulrich Krüger
Solid Earth, 7, 789–815, https://doi.org/10.5194/se-7-789-2016, https://doi.org/10.5194/se-7-789-2016, 2016
Short summary
Short summary
We present exceptional 3-D outcrop data of clay smears in freshly cut trenches of Miocene unconsolidated deltaic clay–sand sequences in an active lignite quarry in the Lower Rhine Embayment. We aim to identify and investigate processes that entrain clay into a fault or breach of formed clay smear. We show the importance of host rock deformation, grain-scale mixing and source layering on clay smear geometry by providing 2-D cross sections and 3-D thickness data of complete clay smear sequences.
Sascha Schneiderwind, Jack Mason, Thomas Wiatr, Ioannis Papanikolaou, and Klaus Reicherter
Solid Earth, 7, 323–340, https://doi.org/10.5194/se-7-323-2016, https://doi.org/10.5194/se-7-323-2016, 2016
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Palaeoseismological research uses historical earthquakes to verify seismic hazard assessment. Earthquakes of magnitude M > 5.5 likely produce surface ruptures that can be preserved in the subsurface. Buried soils or progressive displacements are the main targets of trenching studies. However, the recognition of these features is challenging for inexperienced researchers. Here a workflow is presented which applies remote sensing and geophysical techniques to verify layer distinction.
M. Kehl, E. Eckmeier, S. O. Franz, F. Lehmkuhl, J. Soler, N. Soler, K. Reicherter, and G.-C. Weniger
Clim. Past, 10, 1673–1692, https://doi.org/10.5194/cp-10-1673-2014, https://doi.org/10.5194/cp-10-1673-2014, 2014
B. Wagner, T. Wilke, S. Krastel, G. Zanchetta, R. Sulpizio, K. Reicherter, M. J. Leng, A. Grazhdani, S. Trajanovski, A. Francke, K. Lindhorst, Z. Levkov, A. Cvetkoska, J. M. Reed, X. Zhang, J. H. Lacey, T. Wonik, H. Baumgarten, and H. Vogel
Sci. Dril., 17, 19–29, https://doi.org/10.5194/sd-17-19-2014, https://doi.org/10.5194/sd-17-19-2014, 2014
Related subject area
Structural geology
Micro- and nano-porosity of the active Alpine Fault zone, New Zealand
Unraveling the origins and P-T-t evolution of the allochthonous Sobrado unit (Órdenes Complex, NW Spain) using combined U–Pb titanite, monazite and zircon geochronology and rare-earth element (REE) geochemistry
Fracture attribute scaling and connectivity in the Devonian Orcadian Basin with implications for geologically equivalent sub-surface fractured reservoirs
Structural control on fluid flow and shallow diagenesis: insights from calcite cementation along deformation bands in porous sandstones
The growth of faults and fracture networks in a mechanically evolving, mechanically stratified rock mass: a case study from Spireslack Surface Coal Mine, Scotland
Relationship between microstructures and resistance in mafic assemblages that deform and transform
Multiphase, decoupled faulting in the southern German Molasse Basin – evidence from 3-D seismic data
Fault-controlled fluid circulation and diagenesis along basin-bounding fault systems in rifts – insights from the East Greenland rift system
Near-surface Palaeocene fluid flow, mineralisation and faulting at Flamborough Head, UK: new field observations and U–Pb calcite dating constraints
Towards the application of Stokes flow equations to structural restoration simulations
Inversion tectonics: a brief petroleum industry perspective
Geologic characterization of nonconformities using outcrop and core analogs: hydrologic implications for injection-induced seismicity
Mapping the fracture network in the Lilstock pavement, Bristol Channel, UK: manual versus automatic
Data acquisition by digitizing 2-D fracture networks and topographic lineaments in geographic information systems: further development and applications
Precambrian faulting episodes and insights into the tectonothermal history of north Australia: microstructural evidence and K–Ar, 40Ar–39Ar, and Rb–Sr dating of syntectonic illite from the intracratonic Millungera Basin
Extensional reactivation of the Penninic Frontal Thrust 3 Ma ago as evidenced by U-Pb dating on calcite in fault zone cataclasite
Transverse jointing in foreland fold-and-thrust belts: a remote sensing analysis in the eastern Pyrenees
Regional-scale paleofluid system across the Tuscan Nappe–Umbria–Marche Apennine Ridge (northern Apennines) as revealed by mesostructural and isotopic analyses of stylolite–vein networks
The Piuquencillo Fault System: a long-lived, Andean-transverse fault system and its relationship with magmatic and hydrothermal activity
Pre-inversion normal fault geometry controls inversion style and magnitude, Farsund Basin, offshore southern Norway
Uncertainty assessment for 3D geologic modeling of fault zones based on geologic inputs and prior knowledge
Stress field orientation controls on fault leakage at a natural CO2 reservoir
Control of pre-existing fabric in fracture formation, reactivation and vein emplacement under variable fluid pressure conditions: an example from Archean greenstone belt, India
Extension and inversion of salt-bearing rift systems
Diagenetic evolution of fault zones in Urgonian microporous carbonates, impact on reservoir properties (Provence – southeast France)
Analysis of deformation bands associated with the Trachyte Mesa intrusion, Henry Mountains, Utah: implications for reservoir connectivity and fluid flow around sill intrusions
Structure and kinematics of an extensional growth fold, Hadahid Fault System, Suez Rift, Egypt
Throw variations and strain partitioning associated with fault-bend folding along normal faults
Distribution, microphysical properties, and tectonic control of deformation bands in the Miocene accretionary prism (Whakataki Formation) of the Hikurangi subduction zone
Resolved stress analysis, failure mode, and fault-controlled fluid conduits
On a new robust workflow for the statistical and spatial analysis of fracture data collected with scanlines (or the importance of stationarity)
Characterization of fractures in potential reservoir rocks for geothermal applications in the Rhine-Ruhr metropolitan area (Germany)
An active tectonic field for CO2 storage management: the Hontomín onshore case study (Spain)
Evolution of structures and hydrothermal alteration in a Palaeoproterozoic supracrustal belt: Constraining paired deformation–fluid flow events in an Fe and Cu–Au prospective terrain in northern Sweden
Estimating the depth and evolution of intrusions at resurgent calderas: Los Humeros (Mexico)
Abutting faults: a case study of the evolution of strain at Courthouse branch point, Moab Fault, Utah
Fluid-mediated, brittle–ductile deformation at seismogenic depth – Part 2: Stress history and fluid pressure variations in a shear zone in a nuclear waste repository (Olkiluoto Island, Finland)
Influence of inherited structural domains and their particular strain distributions on the Roer Valley Graben evolution from inversion to extension
Fault zone architecture of a large plate-bounding strike-slip fault: a case study from the Alpine Fault, New Zealand
An automated fracture trace detection technique using the complex shearlet transform
A numerical sensitivity study of how permeability, porosity, geological structure, and hydraulic gradient control the lifetime of a geothermal reservoir
Actors, actions, and uncertainties: optimizing decision-making based on 3-D structural geological models
Structure of massively dilatant faults in Iceland: lessons learned from high-resolution unmanned aerial vehicle data
Fracturing and crystal plastic behaviour of garnet under seismic stress in the dry lower continental crust (Musgrave Ranges, Central Australia)
How can geologic decision-making under uncertainty be improved?
Overprinting translational domains in passive margin salt basins: insights from analogue modelling
Fault slip envelope: a new parametric investigation tool for fault slip based on geomechanics and 3-D fault geometry
2-D finite displacements and strain from particle imaging velocimetry (PIV) analysis of tectonic analogue models with TecPIV
Quantification of uncertainty in 3-D seismic interpretation: implications for deterministic and stochastic geomodeling and machine learning
The internal structure and composition of a plate-boundary-scale serpentinite shear zone: the Livingstone Fault, New Zealand
Martina Kirilova, Virginia Toy, Katrina Sauer, François Renard, Klaus Gessner, Richard Wirth, Xianghui Xiao, and Risa Matsumura
Solid Earth, 11, 2425–2438, https://doi.org/10.5194/se-11-2425-2020, https://doi.org/10.5194/se-11-2425-2020, 2020
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Processes associated with open pores can change the physical properties of rocks and cause earthquakes. In borehole samples from the Alpine Fault zone, we show that many pores in these rocks were filled by weak materials that can slide easily. The amount of open spaces was thus reduced, and fluids circulating within them built up high pressures. Both weak materials and high pressures within pores reduce the rock strength; thus the state of pores here can trigger the next Alpine Fault earthquake.
José Manuel Benítez-Pérez, Pedro Castiñeiras, Juan Gómez-Barreiro, José R. Martínez Catalán, Andrew Kylander-Clark, and Robert Holdsworth
Solid Earth, 11, 2303–2325, https://doi.org/10.5194/se-11-2303-2020, https://doi.org/10.5194/se-11-2303-2020, 2020
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The Sobrado unit represents an allochthonous tectonic slice of exhumed high-grade metamorphic rocks formed during a complex sequence of orogenic processes in the middle to lower crust. We have combined U–Pb geochronology and REE analyses (LASS-ICP-MS) of accessory minerals in migmatitic paragneiss (monazite, zircon) and mylonitic amphibolites (titanite) to constrain the evolution. A Middle Devonian minimum age for HP metamorphism has been obtained.
Anna M. Dichiarante, Ken J. W. McCaffrey, Robert E. Holdsworth, Tore I. Bjørnarå, and Edward D. Dempsey
Solid Earth, 11, 2221–2244, https://doi.org/10.5194/se-11-2221-2020, https://doi.org/10.5194/se-11-2221-2020, 2020
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We studied the characteristics of fracture systems in the Devonian rocks of the Orcadian Basin in Caithness. These mineral-filled fractures have properties that may be used to predict the size and spatial arrangement of similar structures in offshore basins. This includes the Clair field in the Faroe–Shetland Basin.
Leonardo Del Sole, Marco Antonellini, Roger Soliva, Gregory Ballas, Fabrizio Balsamo, and Giulio Viola
Solid Earth, 11, 2169–2195, https://doi.org/10.5194/se-11-2169-2020, https://doi.org/10.5194/se-11-2169-2020, 2020
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This study focuses on the impact of deformation bands on fluid flow and diagenesis in porous sandstones in two different case studies (northern Apennines, Italy; Provence, France) by combining a variety of multiscalar mapping techniques, detailed field and microstructural observations, and stable isotope analysis. We show that deformation bands buffer and compartmentalize fluid flow and foster and localize diagenesis, recorded by carbonate cement nodules spatially associated with the bands.
Billy James Andrews, Zoe Kai Shipton, Richard Lord, and Lucy McKay
Solid Earth, 11, 2119–2140, https://doi.org/10.5194/se-11-2119-2020, https://doi.org/10.5194/se-11-2119-2020, 2020
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Through geological mapping we find that fault zone internal structure depends on whether or not the fault cuts multiple lithologies, the presence of shale layers, and the orientation of joints and coal cleats at the time of faulting. During faulting, cementation of fractures (i.e. vein formation) is highest where the fractures are most connected. This leads to the counter-intuitive result that the highest-fracture-density part of the network often has the lowest open-fracture connectivity.
Nicolas Mansard, Holger Stünitz, Hugues Raimbourg, Jacques Précigout, Alexis Plunder, and Lucille Nègre
Solid Earth, 11, 2141–2167, https://doi.org/10.5194/se-11-2141-2020, https://doi.org/10.5194/se-11-2141-2020, 2020
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Our rock deformation experiments (solid-medium Griggs-type apparatus) on wet assemblages of mafic compositions show that the ability of minerals to react controls the portions of rocks that deform and that minor chemical and mineralogical variations can considerably modify the strength of deformed assemblages. Our study suggests that the rheology of mafic rocks, which constitute a large part of the oceanic crust, cannot be summarized as being rheologically controlled by monophase materials.
Vladimir Shipilin, David C. Tanner, Hartwig von Hartmann, and Inga Moeck
Solid Earth, 11, 2097–2117, https://doi.org/10.5194/se-11-2097-2020, https://doi.org/10.5194/se-11-2097-2020, 2020
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In our work, we carry out an in-depth structural analysis of a geometrically decoupled fault system in the southern German Molasse Basin using a high-resolution 3-D seismic dataset. Based on this analysis, we reconstruct the tectonic history and changes in the stress regimes to explain the structure and evolution of faults. The results contribute in understanding the driving mechanisms behind formation, propagation, and reactivation of faults during foreland basin formation.
Eric Salomon, Atle Rotevatn, Thomas Berg Kristensen, Sten-Andreas Grundvåg, Gijs Allard Henstra, Anna Nele Meckler, Richard Albert, and Axel Gerdes
Solid Earth, 11, 1987–2013, https://doi.org/10.5194/se-11-1987-2020, https://doi.org/10.5194/se-11-1987-2020, 2020
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This study focuses on the impact of major rift border faults on fluid circulation and hanging wall sediment diagenesis by investigating a well-exposed example in NE Greenland using field observations, U–Pb calcite dating, clumped isotope, and minor element analyses. We show that fault-proximal sediments became calcite cemented quickly after deposition to form a near-impermeable barrier along the fault, which has important implications for border fault zone evolution and reservoir assessments.
Nick M. W. Roberts, Jack K. Lee, Robert E. Holdsworth, Christopher Jeans, Andrew R. Farrant, and Richard Haslam
Solid Earth, 11, 1931–1945, https://doi.org/10.5194/se-11-1931-2020, https://doi.org/10.5194/se-11-1931-2020, 2020
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We characterise a well-known fractured and faulted exposure of Cretaceous chalk in NE England, combining field observations with novel U–Pb calcite dating. We show that the faulting and associated fluid flow occurred during the interval of ca. 64–56 Ma, predating earlier estimates of Alpine-related tectonic inversion. We demonstrate that the main extensional fault zone acted as a conduit linking voluminous fluid flow and linking deeper sedimentary layers with the shallow subsurface.
Melchior Schuh-Senlis, Cedric Thieulot, Paul Cupillard, and Guillaume Caumon
Solid Earth, 11, 1909–1930, https://doi.org/10.5194/se-11-1909-2020, https://doi.org/10.5194/se-11-1909-2020, 2020
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This paper presents a numerical method for restoring models of the subsurface to a previous state in their deformation history, acting as a numerical time machine for geological structures. The method relies on the assumption that rock layers can be modeled as highly viscous fluids. It shows promising results on simple setups, including models with faults and non-flat topography. While issues still remain, this could open a way to add more physics to reverse time structural modeling.
Gábor Tari, Didier Arbouille, Zsolt Schléder, and Tamás Tóth
Solid Earth, 11, 1865–1889, https://doi.org/10.5194/se-11-1865-2020, https://doi.org/10.5194/se-11-1865-2020, 2020
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Inversion tectonics has been studied in detail by both academic researchers and industry experts around the world for the last 30 years. Inverted structures provide important traps for petroleum exploration which can be categorized into two end-member modes of evolution. This paper attempts to provide a brief synoptic view of inversion tectonics from the point of view of the petroleum industry, emphasizing the main subsurface challenges of understanding this structural geology phenomenon.
Elizabeth S. Petrie, Kelly K. Bradbury, Laura Cuccio, Kayla Smith, James P. Evans, John P. Ortiz, Kellie Kerner, Mark Person, and Peter Mozley
Solid Earth, 11, 1803–1821, https://doi.org/10.5194/se-11-1803-2020, https://doi.org/10.5194/se-11-1803-2020, 2020
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A summary of observed rock properties across the contact between crystalline basement rock and the overlying younger sedimentary rocks from outcrop and core samples is presented. The data span a range of tectonic settings and describe the rock types immediately adjacent to the contact. The range of features observed at these contacts can influence the migration of fluids. The observations presented here are critical for the safe implementation of fluid injection and geothermal production.
Christopher Weismüller, Rahul Prabhakaran, Martijn Passchier, Janos L. Urai, Giovanni Bertotti, and Klaus Reicherter
Solid Earth, 11, 1773–1802, https://doi.org/10.5194/se-11-1773-2020, https://doi.org/10.5194/se-11-1773-2020, 2020
Short summary
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We photographed a fractured limestone pavement with a drone to compare manual and automatic fracture tracing and analyze the evolution and spatial variation of the fracture network in high resolution. We show that automated tools can produce results comparable to manual tracing in shorter time but do not yet allow the interpretation of fracture generations. This work pioneers the automatic fracture mapping of a complete outcrop in detail, and the results can be used as fracture benchmark.
Romesh Palamakumbura, Maarten Krabbendam, Katie Whitbread, and Christian Arnhardt
Solid Earth, 11, 1731–1746, https://doi.org/10.5194/se-11-1731-2020, https://doi.org/10.5194/se-11-1731-2020, 2020
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The aim of this paper is to describe, evaluate and develop a simple but robust low-cost method for capturing 2-D fracture network data in GIS and make them more accessible to a broader range of users in both academia and industry. We present a breakdown of the key steps in the methodology, which provides an understanding of how to avoid error and improve the accuracy of the final dataset. The 2-D digital method can be used to interpret traces of 2-D linear features on a wide variety of scales.
I. Tonguç Uysal, Claudio Delle Piane, Andrew James Todd, and Horst Zwingmann
Solid Earth, 11, 1653–1679, https://doi.org/10.5194/se-11-1653-2020, https://doi.org/10.5194/se-11-1653-2020, 2020
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This study represents an integrated approach to radiometric age dating using potassium-bearing clay minerals formed during faulting and provides insights into the enigmatic time–space distribution of Precambrian tectonic zones in north-central Australia. Specifically, our work firmly indicates a late Mesoproterzoic minimum age for the Millungera Basin in north Australia and a previously unrecorded concealed late Mesoproterozoic–early Neoproterozoic tectonic event in north-central Australia.
Antonin Bilau, Yann Rolland, Stéphane Schwartz, Nicolas Godeau, Abel Guihou, Pierre Deschamps, Benjamin Brigaud, Aurélie Noret, Thierry Dumont, and Cécile Gautheron
Solid Earth Discuss., https://doi.org/10.5194/se-2020-119, https://doi.org/10.5194/se-2020-119, 2020
Revised manuscript accepted for SE
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As a result of the collision between the European and Apulian plates, the Alps have experienced several evolutionary stages. The Penninic Frontal Thrust (PFT) (major thrust) was associated to compression and now seismic studies show ongoing extensional activity. Calcite mineralisations associated to extension and compresionnal strucures were sampled. Last deformation stage is dated by U-Pb at 4.9–2.3 Ma and isotopes analysis evidence deep crustal fluid's mobilisation.
Stefano Tavani, Pablo Granado, Amerigo Corradetti, Thomas Seers, Josep Maria Casas, and Josep Anton Muñoz
Solid Earth, 11, 1643–1651, https://doi.org/10.5194/se-11-1643-2020, https://doi.org/10.5194/se-11-1643-2020, 2020
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Using orthophotos, we manually digitized 30 000 joints in the eastern Ebro Basin of the Pyrenees. Joints are perpendicular to the belt in the frontal portion of the belt and in the inner and central portion of the foredeep basin. Joint orientations in the external portion of the foredeep become less clustered. Joints in the studied area formed in the foredeep in response to foredeep-parallel stretching, which becomes progressively less intense within the external portion of the foredeep basin.
Nicolas E. Beaudoin, Aurélie Labeur, Olivier Lacombe, Daniel Koehn, Andrea Billi, Guilhem Hoareau, Adrian Boyce, Cédric M. John, Marta Marchegiano, Nick M. Roberts, Ian L. Millar, Fanny Claverie, Christophe Pecheyran, and Jean-Paul Callot
Solid Earth, 11, 1617–1641, https://doi.org/10.5194/se-11-1617-2020, https://doi.org/10.5194/se-11-1617-2020, 2020
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This paper reports a multiproxy approach to reconstruct the depth, timing, and extent of the past fluid flow during the formation of a fold-and-thrust belt in the Northern Apennines, Italy. The unique combination of paleopiezometry and absolute dating returns the absolute timing of the sequence of deformation. Combined with burial models, this leads to predict the expected temperatures for fluid, highlighting a limited hydrothermal fluid flow we relate to the large-scale subsurface geometry.
Jose Piquer, Orlando Rivera, Gonzalo Yañez, and Nicolas Oyarzun
Solid Earth Discuss., https://doi.org/10.5194/se-2020-142, https://doi.org/10.5194/se-2020-142, 2020
Revised manuscript accepted for SE
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A proper recognition of deep, long-lived fault systems is very important for society. They can produce potentially dangerous earthquakes. They can also act as pathways for magmas and hydrothermal fluids, leading to the formation of volcanoes, geothermal systems and mineral deposits. However, the manifestations of these very old faults in the present-day surface can be very subtle. Here we present a detailed, multi-disciplinary study of a fault system of this type in the Andes of central Chile.
Thomas B. Phillips, Christopher A.-L. Jackson, and James R. Norcliffe
Solid Earth, 11, 1489–1510, https://doi.org/10.5194/se-11-1489-2020, https://doi.org/10.5194/se-11-1489-2020, 2020
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Normal faults often reactivate under compression, in a process called inversion. The 3D geometry of these structures (and the effect on resultant inversion structural style) is often not considered. Using seismic reflection data, we examine how stresses form different inversion styles that are controlled by the geometry of the pre-existing structure. Geometrically simple faults are preferentially reactivated; more complex areas are typically not reactivated and instead experience bulk uplift.
Ashton Krajnovich, Wendy Zhou, and Marte Gutierrez
Solid Earth, 11, 1457–1474, https://doi.org/10.5194/se-11-1457-2020, https://doi.org/10.5194/se-11-1457-2020, 2020
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In this paper, a novel methodology of 3D geologic model uncertainty assessment that considers both input data and prior knowledge is developed and applied to characterize fault zones – areas of damaged rock surrounding a fault surface that are important to subsurface engineering projects. The results of the study demonstrate how existing frameworks can be expanded to incorporate new types of information to arrive at a realistic and straightforward model of fault zone geometry in the subsurface.
Johannes M. Miocic, Gareth Johnson, and Stuart M. V. Gilfillan
Solid Earth, 11, 1361–1374, https://doi.org/10.5194/se-11-1361-2020, https://doi.org/10.5194/se-11-1361-2020, 2020
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At the St. Johns Dome, Arizona, CO2 naturally occurs in the subsurface, but there are travertine rocks on the surface which are an expression of CO2 leakage to the surface. These travertine deposits occur along faults, zones where the rock layers are fractured and displaced. In our research, we use geomechanical analysis to show that the CO2 leakage occurs at points where the faults are likely to be permeable due to the orientation of the geological stress field in the subsurface.
Sreyashi Bhowmick and Tridib Kumar Mondal
Solid Earth, 11, 1227–1246, https://doi.org/10.5194/se-11-1227-2020, https://doi.org/10.5194/se-11-1227-2020, 2020
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We explore pre-existing fabric in metabasalts replete with a wide range of crisscross fractures/faults, hosting quartz veins of variable orientations and thicknesses in the Chitradurga region, India. The fractures are identified as components of a riedel shear system. We evaluate reactivation potential of fractures and conclude that episodic changes in fluid pressure conditions triggered fault-valve action, thereby reactivating fabric and fractures, leading to vein emplacement in the region.
Tim P. Dooley and Michael R. Hudec
Solid Earth, 11, 1187–1204, https://doi.org/10.5194/se-11-1187-2020, https://doi.org/10.5194/se-11-1187-2020, 2020
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Sandbox models investigated extension and inversion of salt-bearing rifts such as those found in the Moroccan High Atlas, North Africa. Sand packs were stretched and the structural lows were filled with a salt analog. Models were then subjected to additional extension and loading that remobilized the salt into diapirs. During shortening the distribution of the salt in the overburden governed the structural styles and trends in the supra-salt strata, strongly decoupled from subsalt deformation.
Irène Aubert, Philippe Léonide, Juliette Lamarche, and Roland Salardon
Solid Earth, 11, 1163–1186, https://doi.org/10.5194/se-11-1163-2020, https://doi.org/10.5194/se-11-1163-2020, 2020
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In carbonate rocks, fault zones influence the fluid flows and lead to important diagenetic processes modifying reservoir properties. The aim of this study is to identify the impact of two polyphase fault zones on fluid flows and reservoir properties during basin history. We determined petro-physic and diagenetic properties on 92 samples. This study highlights that fault zones acted as drains at their onset and induced fault zone cementation, which has strongly altered local reservoir properties.
Penelope I. R. Wilson, Robert W. Wilson, David J. Sanderson, Ian Jarvis, and Kenneth J. W. McCaffrey
Solid Earth Discuss., https://doi.org/10.5194/se-2020-71, https://doi.org/10.5194/se-2020-71, 2020
Revised manuscript accepted for SE
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Magma accommodation in the shallow crust leads to deformation of the surrounding host rock through the creation of faults, fractures and folds. This deformation will impact fluid flow around intrusive magma bodies (including sills and laccoliths) by changing the porosity and permeability network of the host rock. The results may have important implications for industries where fluid flow within the sub-surface adds value (e.g. oil and gas, hydrology, geothermal and carbon sequestration).
Christopher A.-L. Jackson, Paul S. Whipp, Robert L. Gawthorpe, and Matthew M. Lewis
Solid Earth, 11, 1027–1051, https://doi.org/10.5194/se-11-1027-2020, https://doi.org/10.5194/se-11-1027-2020, 2020
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Plate tectonics describes the creation, motion, and ultimate destruction of the Earth's continents and oceans. A key plate tectonic process is continental extension; this occurs when the Earth's plates are pulled apart to ultimately form a new ocean. Giant fractures (faults) accommodate plate stretching, although buckling (folding) is thought to be locally important. We use field data to understand how fracturing and buckling relate to each other, demonstrating they are spatially complex.
Efstratios Delogkos, Muhammad Mudasar Saqab, John J. Walsh, Vincent Roche, and Conrad Childs
Solid Earth, 11, 935–945, https://doi.org/10.5194/se-11-935-2020, https://doi.org/10.5194/se-11-935-2020, 2020
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Normal faults have irregular geometries on a range of scales. A quantitative model has been presented which illustrates the range of deformation arising from movement on fault surface irregularities, with fault-bend folding generating geometries reminiscent of normal drag and reverse drag. We show that fault throw can be subject to errors of up to ca. 50 % for realistic fault bend geometries (up to ca. 40°), even on otherwise sub-planar faults with constant displacement.
Kathryn E. Elphick, Craig R. Sloss, Klaus Regenauer-Lieb, and Christoph E. Schrank
Solid Earth Discuss., https://doi.org/10.5194/se-2020-80, https://doi.org/10.5194/se-2020-80, 2020
Revised manuscript accepted for SE
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We analysed a sedimentary rock package located in Castlepoint, New Zealand, to test the control of the tectonic setting on the observed deformation structures. In extension and contraction, we observed faults and small fault-like structures characterised by complex spatial patterns and a reduction in porosity and grain size compared to the host rock. With these properties, the structures are likely to act as barriers to fluid flow and cause compartmentalisation of the sedimentary sequence.
David A. Ferrill, Kevin J. Smart, and Alan P. Morris
Solid Earth, 11, 899–908, https://doi.org/10.5194/se-11-899-2020, https://doi.org/10.5194/se-11-899-2020, 2020
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This paper explores failure modes and deformation behavior of faults in the mechanically layered Eagle Ford Formation, an ultra-low permeability self-sourced oil and gas reservoir and aquitard in southwest Texas, USA. The role of dilation versus slip relates in predictable ways to mechanical stratigraphy, stress field, and dilation and slip tendency. We conclude that dilation tendency vs. slip tendency can be used to infer fault and fracture deformation modes and conduit versus seal behaviour.
Andrea Bistacchi, Silvia Mittempergher, Mattia Martinelli, and Fabrizio Storti
Solid Earth Discuss., https://doi.org/10.5194/se-2020-83, https://doi.org/10.5194/se-2020-83, 2020
Revised manuscript accepted for SE
Martin Balcewicz, Benedikt Ahrens, Kevin Lippert, and Erik H. Saenger
Solid Earth Discuss., https://doi.org/10.5194/se-2020-63, https://doi.org/10.5194/se-2020-63, 2020
Revised manuscript accepted for SE
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The geothermal potential of a carbonate reservoir in the Rhine-Ruhr area, Germany, was investigated by outcrop surveys and laboratory measurements. The carbonate layer of interest is ca. 300 m thick and located in 4–6 km depth. Laboratory measurements show insufficient porosity, permeability, and thermal conductivity compared to typical geothermal reservoirs. A detailed fracture analysis is presented in this paper which could be the key to a successful implementation of deep geothermal projects.
Raúl Pérez-López, José F. Mediato, Miguel A. Rodríguez-Pascua, Jorge L. Giner-Robles, Adrià Ramos, Silvia Martín-Velázquez, Roberto Martínez-Orío, and Paula Fernández-Canteli
Solid Earth, 11, 719–739, https://doi.org/10.5194/se-11-719-2020, https://doi.org/10.5194/se-11-719-2020, 2020
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Long-term monitoring of CO2 of onshore storage has to consider thousands of years as a medium lifetime of the storage. In this wide time interval, the stress and strain properties of the reservoir change and earthquakes could occur. Therefore, we have to identify those fault sets which can be reactivated by changing the stress conditions. We need to know the role of active fault sets and model the changing conditions to prevent induced seismicity.
Joel B. H. Andersson, Tobias E. Bauer, and Edward P. Lynch
Solid Earth, 11, 547–578, https://doi.org/10.5194/se-11-547-2020, https://doi.org/10.5194/se-11-547-2020, 2020
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In this field-based study, geological structures and hydrothermal alterations in one of the least known geological terrains in Sweden are investigated. The area is located above the polar circle in northwestern Sweden that produces a significant portion of the iron and copper in the EU. A new tectonic model based on field evidence and microstructures is presented and it is shown that minerals typical for iron and copper–gold deposits can be linked to different phases of the structural evolution.
Stefano Urbani, Guido Giordano, Federico Lucci, Federico Rossetti, Valerio Acocella, and Gerardo Carrasco-Núñez
Solid Earth, 11, 527–545, https://doi.org/10.5194/se-11-527-2020, https://doi.org/10.5194/se-11-527-2020, 2020
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In Los Humeros, through field structural–geological mapping and analogue experiments, we show a discontinuous and small-scale (areal size
~ 1 km2) uplift of the caldera floor due to the emplacement of multiple shallow (< 1 km) magmatic bodies. These results allow for a better assessment of the subsurface structure of Los Humeros, with crucial implications for planning future geothermal exploration, which should account for the local geothermal gradient affected by such a shallow heat source.
Heijn van Gent and Janos L. Urai
Solid Earth, 11, 513–526, https://doi.org/10.5194/se-11-513-2020, https://doi.org/10.5194/se-11-513-2020, 2020
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Faults form due to stresses caused by crustal processes. As faults influence the stress field locally, fault interaction leads to local variations in the stress field, but this is difficult to observe directly.
We describe an outcrop of one fault abuting into another one. By careful measurement of structures in the overlapping deformation zones and separating them using published relative age data, we show a rotation in the local stress field resulting from the faults growing to each other
Francesca Prando, Luca Menegon, Mark Anderson, Barbara Marchesini, Jussi Mattila, and Giulio Viola
Solid Earth, 11, 489–511, https://doi.org/10.5194/se-11-489-2020, https://doi.org/10.5194/se-11-489-2020, 2020
Jef Deckers, Bernd Rombaut, Koen Van Noten, and Kris Vanneste
Solid Earth Discuss., https://doi.org/10.5194/se-2020-23, https://doi.org/10.5194/se-2020-23, 2020
Revised manuscript accepted for SE
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This study shows the presence of two structural domains in the western border fault system of the Roer Valley Graben. These domains, dominated by NW-SE striking faults, displayed distinctly different strain distributions during both Late Cretaceous compression and Cenozoic extension. The southern domain is characterized by narrow, localized faulting, while the northern domain is characterized by wide, distributed faulting. The non-colinear WNW-ESE Grote Brogel fault links both domains.
Bernhard Schuck, Anja M. Schleicher, Christoph Janssen, Virginia G. Toy, and Georg Dresen
Solid Earth, 11, 95–124, https://doi.org/10.5194/se-11-95-2020, https://doi.org/10.5194/se-11-95-2020, 2020
Rahul Prabhakaran, Pierre-Olivier Bruna, Giovanni Bertotti, and David Smeulders
Solid Earth, 10, 2137–2166, https://doi.org/10.5194/se-10-2137-2019, https://doi.org/10.5194/se-10-2137-2019, 2019
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This contribution describes a technique to automatically extract digitized fracture patterns from images of fractured rock. Digitizing fracture patterns, accurately and rapidly with minimal human intervention, is a desirable objective in fractured rock characterization. Our method can extract fractures at varying scales of rock discontinuities, and results are presented from three different outcrop settings. The method enables faster processing of copious amounts of fractured outcrop image data.
Johanna F. Bauer, Michael Krumbholz, Elco Luijendijk, and David C. Tanner
Solid Earth, 10, 2115–2135, https://doi.org/10.5194/se-10-2115-2019, https://doi.org/10.5194/se-10-2115-2019, 2019
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We use a 4-D numerical sensitivity study to investigate which geological parameters exert a dominant control on the quality of a deep geothermal reservoir. We constrain how the variability of these parameters affects the economic potential of a reservoir. We show that the interplay of high permeability and hydraulic gradient is the dominant control on reservoir lifetime. Fracture anisotropy, typical for faults, leads to fluid channelling and thus restricts the exploitable volume significantly.
Fabian Antonio Stamm, Miguel de la Varga, and Florian Wellmann
Solid Earth, 10, 2015–2043, https://doi.org/10.5194/se-10-2015-2019, https://doi.org/10.5194/se-10-2015-2019, 2019
Christopher Weismüller, Janos L. Urai, Michael Kettermann, Christoph von Hagke, and Klaus Reicherter
Solid Earth, 10, 1757–1784, https://doi.org/10.5194/se-10-1757-2019, https://doi.org/10.5194/se-10-1757-2019, 2019
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We use drones to study surface geometries of massively dilatant faults (MDFs) in Iceland, with apertures up to tens of meters at the surface. Based on throw, aperture and structures, we define three geometrically different endmembers of the surface expression of MDFs and show that they belong to one continuum. The transition between the endmembers is fluent and can change at one fault over short distances, implying less distinct control of deeper structures on surface geometries than expected.
Friedrich Hawemann, Neil Mancktelow, Sebastian Wex, Giorgio Pennacchioni, and Alfredo Camacho
Solid Earth, 10, 1635–1649, https://doi.org/10.5194/se-10-1635-2019, https://doi.org/10.5194/se-10-1635-2019, 2019
Cristina G. Wilson, Clare E. Bond, and Thomas F. Shipley
Solid Earth, 10, 1469–1488, https://doi.org/10.5194/se-10-1469-2019, https://doi.org/10.5194/se-10-1469-2019, 2019
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In this paper, we outline the key insights from decision-making research about how, when faced with uncertainty, humans constrain decisions through the use of heuristics (rules of thumb), making them vulnerable to systematic and suboptimal decision biases. We also review existing strategies to debias decision-making that have applicability in the geosciences, giving special attention to strategies that make use of information technology and artificial intelligence.
Zhiyuan Ge, Matthias Rosenau, Michael Warsitzka, and Rob L. Gawthorpe
Solid Earth, 10, 1283–1300, https://doi.org/10.5194/se-10-1283-2019, https://doi.org/10.5194/se-10-1283-2019, 2019
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Salt basins are important as they bear abundant natural resources and record valuable geological information. However, some models of salt basin evolution do not fully reconcile with natural examples. Using state-of-the-art analogue modelling, we investigate how a relatively stable area, the translational domain, occurs and gets overprinted in salt basins. The results suggest that that variation of sediment deposition is the key factor for overprinting the translational domain.
Roger Soliva, Frantz Maerten, Laurent Maerten, and Jussi Mattila
Solid Earth, 10, 1141–1154, https://doi.org/10.5194/se-10-1141-2019, https://doi.org/10.5194/se-10-1141-2019, 2019
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We propose innovative parametric modeling allowing for analysis of a very large number of fault-slip numerical simulations on 3-D discrete fault network. The approach allows for the first time producing failure envelopes of large rock volumes containing faults, using variations of geological conditions such as remote stresses, cohesion, friction, and fluid pressure. This tool helps to define the most conservative fault slip hazard case or to account for potential uncertainties in the input data.
David Boutelier, Christoph Schrank, and Klaus Regenauer-Lieb
Solid Earth, 10, 1123–1139, https://doi.org/10.5194/se-10-1123-2019, https://doi.org/10.5194/se-10-1123-2019, 2019
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Image correlation techniques have provided new ways to analyse the distribution in space and time of deformation in analogue models of tectonics. Here, we demonstrate how the correlation of successive time-lapse images of a deforming model allows calculating the finite displacements and finite strain tensor. We illustrate, using synthetic images, the ability of the algorithm to produce maps of the finite deformation.
Alexander Schaaf and Clare E. Bond
Solid Earth, 10, 1049–1061, https://doi.org/10.5194/se-10-1049-2019, https://doi.org/10.5194/se-10-1049-2019, 2019
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Seismic reflection data allow us to infer subsurface structures such as horizon and fault surfaces. The interpretation of this indirect data source is inherently uncertainty, and our work takes a first look at the scope of uncertainties involved in the interpretation of 3-D seismic data. We show how uncertainties of fault interpretations can be related to data quality and discuss the implications for the 3-D modeling of subsurface structures derived from 3-D seismic data.
Matthew S. Tarling, Steven A. F. Smith, James M. Scott, Jeremy S. Rooney, Cecilia Viti, and Keith C. Gordon
Solid Earth, 10, 1025–1047, https://doi.org/10.5194/se-10-1025-2019, https://doi.org/10.5194/se-10-1025-2019, 2019
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Shear zones dominated by hydrated mantle rocks (serpentinites) occur in many tectonic settings around the world. To better understand the internal structure, composition and possible mechanical behaviour of these shear zones, we performed a detailed field, petrological and microanalytical study of the Livingstone Fault in New Zealand. We propose a conceptual model to account for the main physical and chemical processes that control deformation in large serpentinite shear zones.
Cited articles
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This paper combines fieldwork, ground-penetrating radar (GPR) and remote sensing in the jointed and faulted grabens area of Canyonlands National Park, Utah, USA. GPR profiles show that graben floors are subject to faulting, although the surface shows no scarps. We enhance evidence for the effect of preexisting joints on the formation of dilatant faults and provide a conceptual model for graben evolution. Correlating paleosols from outcrops and GPR adds to estimates of the age of the grabens.
This paper combines fieldwork, ground-penetrating radar (GPR) and remote sensing in the jointed...
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