Articles | Volume 8, issue 1
https://doi.org/10.5194/se-8-199-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/se-8-199-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
21 Feb 2017
Research article |
| 21 Feb 2017
Rheological transitions in the middle crust: insights from Cordilleran metamorphic core complexes
Frances J. Cooper
CORRESPONDING AUTHOR
School of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK
John P. Platt
Department of Earth Sciences, University of Southern California, Los
Angeles, CA 90089, USA
Whitney M. Behr
School of Geological Sciences, Jackson School of Geosciences,
University of Texas at Austin, Austin, TX 78712, USA
Related authors
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Miguel Cisneros, Jaime D. Barnes, Whitney M. Behr, Alissa J. Kotowski, Daniel F. Stockli, and Konstantinos Soukis
Solid Earth, 12, 1335–1355, https://doi.org/10.5194/se-12-1335-2021, https://doi.org/10.5194/se-12-1335-2021, 2021
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Constraining the conditions at which rocks form is crucial for understanding geologic processes. For years, the conditions under which rocks from Syros, Greece, formed have remained enigmatic; yet these rocks are fundamental for understanding processes occurring at the interface between colliding tectonic plates (subduction zones). Here, we constrain conditions under which these rocks formed and show they were transported to the surface adjacent to the down-going (subducting) tectonic plate.
John P. Platt
Solid Earth, 10, 357–361, https://doi.org/10.5194/se-10-357-2019, https://doi.org/10.5194/se-10-357-2019, 2019
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The channel flow model proposed by Marques et al (2018) for the Himalayas has a geometry that would not generate any excess pressure. The excess pressure calculated by the authors, based on a different and highly improbable geometry, is so high that the overlying rocks would not be able to contain it: they would bend or break in such a way as to relieve the pressure. The conclusions drawn by the authors are therefore unwarranted and misleading.
Haoran Xia and John P. Platt
Solid Earth, 8, 379–403, https://doi.org/10.5194/se-8-379-2017, https://doi.org/10.5194/se-8-379-2017, 2017
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We investigated the Pelona Schist, an exhumed subduction complex in southern California associated with the Laramide subduction in Late Cretaceous–Paleocene. Based on field, microstructural and petrologic analyses, we established the deformational and metamorphic history of the Pelona Schist and discussed the exhumation process. Then we presented the rheological properties and deformation mechanisms of the Pelona Schist during each phase of deformation.
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Natural fracture patterns at Swift Reservoir anticline, NW Montana: the influence of structural position and lithology from multiple observation scales
Rapid hydration and weakening of anhydrite under stress: implications for natural hydration in the Earth's crust and mantle
Analogue experiments on releasing and restraining bends and their application to the study of the Barents Shear Margin
Structural framework and timing of the Pahtohavare Cu ± Au deposits, Kiruna mining district, Sweden
Does the syn- versus post-rift thickness ratio have an impact on the inversion-related structural style?
Inversion of accommodation zones in salt-bearing extensional systems: insights from analog modeling
Structural control of inherited salt structures during inversion of a domino basement-fault system from an analogue modelling approach
Kinematics and time-resolved evolution of the main thrust-sense shear zone in the Eo-Alpine orogenic wedge (the Vinschgau Shear Zone, eastern Alps)
Role of inheritance during tectonic inversion of a rift system in basement-involved to salt-decoupled transition: analogue modelling and application to the Pyrenean–Biscay system
Water release and homogenization by dynamic recrystallization of quartz
Time-dependent frictional properties of granular materials used in analogue modelling: implications for mimicking fault healing during reactivation and inversion
Large grain-size-dependent rheology contrasts of halite at low differential stress: evidence from microstructural study of naturally deformed gneissic Zechstein 2 rock salt (Kristallbrockensalz) from the northern Netherlands
Analogue modelling of the inversion of multiple extensional basins in foreland fold-and-thrust belts
A contribution to the quantification of crustal shortening and kinematics of deformation across the Western Andes ( ∼ 20–22° S)
Rift thermal inheritance in the SW Alps (France): insights from RSCM thermometry and 1D thermal numerical modelling
Analogue modelling of basin inversion: the role of oblique kinematics and implications for the Araripe Basin (Brazil)
The Luangwa Rift Active Fault Database and fault reactivation along the southwestern branch of the East African Rift
Clustering has a meaning: optimization of angular similarity to detect 3D geometric anomalies in geological terrains
Shear zone evolution and the path of earthquake rupture
Mechanical compaction mechanisms in the input sediments of the Sumatra subduction complex – insights from microstructural analysis of cores from IODP Expedition 362
Detecting micro fractures: a comprehensive comparison of conventional and machine-learning-based segmentation methods
Multiscale lineament analysis and permeability heterogeneity of fractured crystalline basement blocks
Structural characterization and K–Ar illite dating of reactivated, complex and heterogeneous fault zones: lessons from the Zuccale Fault, Northern Apennines
How do differences in interpreting seismic images affect estimates of geological slip rates?
Progressive veining during peridotite carbonation: insights from listvenites in Hole BT1B, Samail ophiolite (Oman)
Tectonic evolution of the Indio Hills segment of the San Andreas fault in southern California, southwestern USA
Structural diagenesis in ultra-deep tight sandstones in the Kuqa Depression, Tarim Basin, China
Variscan structures and their control on latest to post-Variscan basin architecture: insights from the westernmost Bohemian Massif and southeastern Germany
Multi-disciplinary characterizations of the BedrettoLab – a new underground geoscience research facility
Biotite supports long-range diffusive transport in dissolution–precipitation creep in halite through small porosity fluctuations
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Virtual field trip to the Esla Nappe (Cantabrian Zone, NW Spain): delivering traditional geological mapping skills remotely using real data
Marine forearc structure of eastern Java and its role in the 1994 Java tsunami earthquake
Roughness of fracture surfaces in numerical models and laboratory experiments
Impact of basement thrust faults on low-angle normal faults and rift basin evolution: a case study in the Enping sag, Pearl River Basin
Evidence for and significance of the Late Cretaceous Asteroussia event in the Gondwanan Ios basement terranes
Investigating spatial heterogeneity within fracture networks using hierarchical clustering and graph distance metrics
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
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Emplacement of “exotic” Zechstein slivers along the inverted Sontra Graben (northern Hessen, Germany): clues from balanced cross sections and geometrical forward modeling
Kinematics of subduction in the Ibero-Armorican arc constrained by 3D microstructural analysis of garnet and pseudomorphed lawsonite porphyroblasts from Île de Groix (Variscan belt)
Mapping and evaluating kinematics and the stress and strain field at active faults and fissures: a comparison between field and drone data at the NE rift, Mt Etna (Italy)
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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.
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.
Pâmela Cristina Richetti, Frank Zwaan, Guido Schreurs, Renata S. Schmitt, and Timothy Chris Schmid
EGUsphere, https://doi.org/10.5194/egusphere-2022-1251, https://doi.org/10.5194/egusphere-2022-1251, 2022
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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 a 1000 m height, allowing for study, 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.
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.
Dario Zampieri, Paola Vannoli, and Pierfrancesco Burrato
Solid Earth, 12, 1967–1986, https://doi.org/10.5194/se-12-1967-2021, https://doi.org/10.5194/se-12-1967-2021, 2021
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The long-lived Schio-Vicenza Fault System is a major shear zone cross-cutting the foreland and the thrust belt of the eastern southern Alps. We review 150 years of scientific works and explain its activity and kinematics, characterized by sinistral and dextral transcurrent motion along its southern and northern sections, respectively, by a geodynamic model that has the Adria indenter as the main actor and coherently reconciles the available geological and geophysical evidence collected so far.
Vincent F. Verwater, Eline Le Breton, Mark R. Handy, Vincenzo Picotti, Azam Jozi Najafabadi, and Christian Haberland
Solid Earth, 12, 1309–1334, https://doi.org/10.5194/se-12-1309-2021, https://doi.org/10.5194/se-12-1309-2021, 2021
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Balancing along geological cross sections reveals that the Giudicarie Belt comprises two kinematic domains. The SW domain accommodated at least ~ 18 km Late Oligocene to Early Miocene shortening. Since the Middle Miocene, the SW domain experienced at least ~ 12–22 km shortening, whereas the NE domain underwent at least ~ 25–35 km. Together, these domains contributed to ~ 40–47 km of sinistral offset of the Periadriatic Fault along the Northern Giudicarie Fault since the Late Oligocene.
Emma A. H. Michie, Mark J. Mulrooney, and Alvar Braathen
Solid Earth, 12, 1259–1286, https://doi.org/10.5194/se-12-1259-2021, https://doi.org/10.5194/se-12-1259-2021, 2021
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Generating an accurate model of the subsurface is crucial when assessing a site for CO2 storage, particularly for a fault-bound storage site that may act as a seal or could reactivate upon CO2 injection. However, we have shown how picking strategy, i.e. line spacing, chosen to create the model significantly influences any subsequent fault analyses but is surprisingly rarely discussed. This analysis has been performed on the Vette Fault bounding the Smeaheia potential CO2 storage site.
David J. Anastasio, Frank J. Pazzaglia, Josep M. Parés, Kenneth P. Kodama, Claudio Berti, James A. Fisher, Alessandro Montanari, and Lorraine K. Carnes
Solid Earth, 12, 1125–1142, https://doi.org/10.5194/se-12-1125-2021, https://doi.org/10.5194/se-12-1125-2021, 2021
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The anisotropy of magnetic susceptibility (AMS) technique provides an effective way to interpret deforming mountain belts. In both the Betics, Spain, and Apennines, Italy, weak but well-organized AMS fabrics were recovered from young unconsolidated and unburied rocks that could not be analyzed with more traditional methods. Collectively, these studies demonstrate the novel ways that AMS can be combined with other data to resolve earthquake hazards in space and time.
Stefano Urbani, Guido Giordano, Federico Lucci, Federico Rossetti, and Gerardo Carrasco-Núñez
Solid Earth, 12, 1111–1124, https://doi.org/10.5194/se-12-1111-2021, https://doi.org/10.5194/se-12-1111-2021, 2021
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Structural studies in active calderas have a key role in the exploration of geothermal systems. We reply in detail to the points raised by the comment of Norini and Groppelli (2020), strengthening the relevance of our structural fieldwork for geothermal exploration and exploitation in active caldera geothermal systems including the Los Humeros caldera.
Jakob Bolz and Jonas Kley
Solid Earth, 12, 1005–1024, https://doi.org/10.5194/se-12-1005-2021, https://doi.org/10.5194/se-12-1005-2021, 2021
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To assess the role smaller graben structures near the southern edge of the Central European Basin System play in the basin’s overall deformational history, we take advantage of a feature found on some of these structures, where slivers from older rock units appear along the graben's main fault, surrounded on both sides by younger strata. The implications for the geometry of the fault provide a substantially improved estimate for the magnitude of normal and thrust motion along the fault system.
Domingo G. A. M. Aerden, Alejandro Ruiz-Fuentes, Mohammad Sayab, and Aidan Forde
Solid Earth, 12, 971–992, https://doi.org/10.5194/se-12-971-2021, https://doi.org/10.5194/se-12-971-2021, 2021
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We studied the geometry of foliations and microfolds preserved within metamorphic garnet crystals using X-ray tomography. The studied rocks are blueschists from Ile de Groix formed during Late Devonian subduction of Gondwana under Armorica. Several sets of differently oriented microfabrics were found recording variations in the direction of subduction. Comparison with similar data for Iberia supports that Iberia rotated only 10–20° during the Cretaceous opening of the North Atlantic.
Alessandro Tibaldi, Noemi Corti, Emanuela De Beni, Fabio Luca Bonali, Susanna Falsaperla, Horst Langer, Marco Neri, Massimo Cantarero, Danilo Reitano, and Luca Fallati
Solid Earth, 12, 801–816, https://doi.org/10.5194/se-12-801-2021, https://doi.org/10.5194/se-12-801-2021, 2021
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The Northeast Rift of Mt Etna is affected by ground deformation linked to gravity sliding of the volcano flank and dike injection. Drone surveys show that the rift is affected by NE-striking extensional fractures and normal faults. Given an age of 1614 CE for the offset lavas, we obtained an extension rate of 1.9 cm yr−1 for the last 406 years. The stress field is characterised by a NW–SE σHmin. Drone surveys allow us to quickly collect data with a resolution of 2–3 cm.
Matteo Demurtas, Steven A.F. Smith, Elena Spagnuolo, and Giulio Di Toro
Solid Earth, 12, 595–612, https://doi.org/10.5194/se-12-595-2021, https://doi.org/10.5194/se-12-595-2021, 2021
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We performed shear experiments on calcite–dolomite gouge mixtures to better understand the behaviour of carbonates during sub-seismic to seismic deformation in the shallow crust. The development of a foliation in the gouge was only restricted to coseismic sliding, whereas fluidisation occurred over a wide range of slip velocities (sub-seismic to coseismic) in the presence of water. These observations will contribute to a better interpretation of the rock record.
James Gilgannon, Marius Waldvogel, Thomas Poulet, Florian Fusseis, Alfons Berger, Auke Barnhoorn, and Marco Herwegh
Solid Earth, 12, 405–420, https://doi.org/10.5194/se-12-405-2021, https://doi.org/10.5194/se-12-405-2021, 2021
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Using experiments that simulate deep tectonic interfaces, known as viscous shear zones, we found that these zones spontaneously develop periodic sheets of small pores. The presence of porous layers in deep rocks undergoing tectonic deformation is significant because it requires a change to the current model of how the Earth deforms. Emergent porous layers in viscous rocks will focus mineralising fluids and could lead to the seismic failure of rocks that are never supposed to have this occur.
Cited articles
Anderson, J. L. and Rowley, M.: Synkinematic intrusion of peraluminous and associated metaluminous granitic magmas, Whipple Mountains, California, Canadian Mineralogist, 19 pp., 1981.
Anderson, J. L., Barth, A. P., and Young, E. D.: Mid-crustal Cretaceous roots of Cordilleran Metamorphic Core Complexes, Geology, 16, 366–369, 1988.
Axen, G. J. and Selverstone, J.: Stress state and fluid-pressure level along the Whipple detachment fault, California, Geology, 22, 835–838, 1994.
Bartley, J. M. and Wernicke, B. P.: The Snake Range decollement interpreted as a major extensional shear zone, Tectonics, 3, 647–657, 1984.
Behr, W. M. and Platt, J. P.: A naturally constrained stress profile through the middle crust in an extensional terrane, Earth Planet. Sc. Lett., 303, 181–192, 2011.
Behr, W. M. and Platt, J. P.: Kinematic and thermal evolution during two-stage exhumation of a Mediterranean subduction complex, Tectonics, 31, TC4025, https://doi.org/10.1029/2012TC003121, 2012.
Behr, W. M. and Platt, J. P.: Rhelogical evolution of a Mediterranean subduction complex, J. Struct. Geol., 54, 136–155, https://doi.org/10.1016/j.jsg.2013.07.012, 2013.
Behr, W. M. and Platt, J. P.: Brittle faults are weak, yet the ductile middle crust is strong: Implications for lithospheric mechanics, Geophys. Res. Lett., 41, 8067–8075, 2014.
Behrmann, J. H.: Crystal plasticity and superplasticity in quartzite: a natural example, Tectonophysics, 115, 101–129, 1985.
Block, L. and Royden, L. H.: Core complex geometries and regional scale flow in the lower crust, Tectonics, 9, 557–567, 1990.
Brown, R. L. and Murray Journeay, J.: Tectonic denudation of the Shuswap metamorphic terrane of southeastern British Columbia, Geology, 15, 142–146, 1987.
Carpenter, B. M., Saffer, D. M., and Marone, C.: Frictional properties and sliding stability of the San Andreas fault from deep drill core, Geology, 40, 759–762, 2012.
Colgan, J. P., Howard, K. A., Fleck, R. J., and Wooden, J. L.: Rapid middle Miocene extension and unroofing of the southern Ruby Mountains, Nevada, Tectonics, 29, TC6022, https://doi.org/10.1029/2009TC002655, 2010.
Collettini, C., Niemeijer, A., Viti, C., and Marone, C.: Fault zone fabric and fault weakness, Nature, 462, 907–910, 2009.
Coney, P. J.: Structural analysis of the Snake Range “decollement”, East-Central Nevada, Geol. Soc. Am. Bull., 85, 973–978, 1974.
Coney, P. J.: Cordilleran metamorphic core complexes, an overview, Geol. Soc. Am. Mem., 153, 7–31, 1980.
Cooper, F. J., Platt, J. P., Anczkiewicz, R., and Whitehouse, M. J.: Footwall dip of a core complex detachment fault: thermobarometric constraints from the northern Snake Range (Basin and Range, USA), J. Metamorph. Geol., 28, 997–1020, https://doi.org/10.1111/j.1525-1314.2010.00907.x, 2010a.
Cooper, F. J., Platt, J. P., Platzman, E. S., Grove, M. J., and Seward, G.: Opposing shear senses in a subdetachment mylonite zone: Implications for core complex mechanics, Tectonics, 29, TC4019, https://doi.org/10.1029/2009TC002632, 2010b.
Crafford, A. E. J.: Geologic map of Nevada, US Geological Survey Data Series 249, 46 pp., 2007.
Davis, G. A.: Rapid upward transport of mid-crustal mylonitic gneisses in the footwall of a Miocene detachment fault, Whipple Mountains, southeastern California, Geol. Rundsch., 77, 191–209, 1988.
Davis, G. A. and Lister, G. S.: Detachment faulting in continental extension, perspectives from the southwestern US Cordillera, Geol. S. Am. S., 218, 133–159, 1988.
Davis, G. A., Anderson, J. L., Frost, E. G., and Shackelford, T. J.: Mylonitization and detachment faulting in the Whipple-Buckskin-Rawhide Mountains terrane, southeastern California and western Arizona, Geol. Soc. Am. Mem., 153, 79–129, 1980.
Davis, G. A., Lister, G. S., and Reynolds, S. J.: Structural evolution of the Whipple and South Mountain shear zones, southwestern United States, Geology, 14, 7–10, 1986.
DiToro, G., Hirose, T., Nielsen, S., Pennacchioni, G., and Shimamoto, T.: Natural and experimental evidence of melt lubrication of faults during earthquakes, Science, 311, 647–649, https://doi.org/10.1126/science.1121012, 2006.
Foster, D. A. and John, B. E.: Quantifying tectonic exhumation in an extensional orogen with thermochronology: examples from the southern Basin and Range Province, Geological Society of London Special Publication, 154, 343–364, https://doi.org/10.1144/GSL.SP.1999.154.01.16, 1999.
Gans, P. B. and Miller, E. L.: Style of mid-Tertiary extension in east-central Nevada, in: Geologic Excursions in the Overthrust Belt and Metamorphic Core Complexes of the Intermountain Region, edited by: Gurgel, K. D., Utah Geological and Mineral Survey Special Studies, Salt Lake City, Utah, 1983.
Gans, P. B., Miller, E. L., Huggins, C. C., and Lee, J.: Geologic map of the Little Horse Canyon Quadrangle, Nevada and Utah, Field Studies Map 20, Nevada Bureau of Mines and Geology, Reno, Nevada, 1999a.
Gans, P. B., Miller, E. L., and Lee, J.: Geologic map of the Spring Mountain Quadrangle, Nevada and Utah, Field Studies Map 18, Nevada Bureau of Mines and Geology, Reno, Nevada, 1999b.
Gaudemer, Y. and Tapponnier, P.: Ductile and brittle deformations in the northern Snake Range, Nevada, J. Struct. Geol., 9–2, 159–180, 1987.
Gébelin, A., Mulch, A., Teyssier, C., Heizler, M., Vennemann, T., and Seaton, N. C. A.: Oligo-Miocene extensional tectonics and fluid flow across the Northern Snake Range detachment system, Nevada, Tectonics, 30, TC5010, https://doi.org/10.1029/2010TC002797, 2011.
Gébelin, A., Teyssier, C., Heizler, M., and Mulch, A.: Meteoric water circulation in a rolling-hinge detachment system (northern Snake Range core complex, Nevada), GSA Bulletin, 127, 149–161, https://doi.org/10.1130/B31063.1, 2015.
Grasemann, B. and Dabrowski, M.: Winged inclusions: Pinch-and-swell objects during high-strain simple shear, J. Struct. Geol., 70, 78–94, 2015.
Gross, C. E.: Tectonic significance of mylonites in the little Buckskin Mountains, west-central Arizona: Insights from quartz microstructural data, Vancouver, Canada, 2014.
Hacker, B. R., Yin, A., Christie, J. M., and Davis, G. A.: Stress magnitude, strain rate, and rheology of extended middle continental crust inferred from quartz grain sizes in the Whipple Mountains, California, Tectonics, 11, 36–46, 1992.
Haines, S. H. and van der Pluijm, B. A.: Clay quantification and Ar-Ar dating of synthetic and natural gouge: Application to the Miocene Sierra Mazatán detachment fault, Sonora, Mexico, J. Struct. Geol., 30, 525–538, 2008.
Haines, S. H. and van der Pluijm, B. A.: Patterns of mineral transformations in clay gouge, with examples from low-angle normal fault rocks in the western USA, J. Struct. Geol., 43, 2–32, 2012.
Hallett, B. W. and Spear, F. S.: The P-T History of Anatectic Pelites of the Northern East Humboldt Range, Nevada: Evidence for Tectonic Loading, Decompression, and Anatexis, J. Petrol., 55, 3–36, https://doi.org/10.1093/petrology/egt057, 2014.
Handy, M. R.: Flow laws for rocks containing two non-linear viscous phases: a phenomenological approach, J. Struct. Geol., 16, 287–301, 1994.
Henry, C. D., McGrew, A. J., Colgan, J. P., Snoke, A. W., and Brueseke, M. E.: Timing, distribution, amount, and style of Cenozoic extension in the northern Great Basin, Geologic Field Trips to the Basin and Range, Rocky Mountains, Snake River Plain, and Terranes of the US Cordillera, Geological Society of America Field Guide, 21, 27–66, 2011.
Hirth, G. and Beeler, N. M.: The role of fluid pressure on frictional behavior at the base of the seismogenic zone, Geology, 43, 223–226, https://doi.org/10.1130/G36361.1, 2015.
Hirth, G. and Kohlstedt, D.: Rheology of the Upper Mantle and the Mantle Wedge: A View from the Experimentalists, Inside the Subduction Factory, 83–105, https://doi.org/10.1029/138GM06, 2003.
Hirth, G. and Tullis, J.: Dislocation creep regimes in quartz aggregates, J. Struct. Geol., 14, 145–160, 1992.
Hirth, G., Teyssier, C., and Dunlap, W. J.: An evaluation of quartzite flow laws based on comparisons between experimentally and naturally deformed rocks, Int. J. Earth Sci., 90, 77–87, 2001.
Holdsworth, R. E., Van Diggelen, E. W. E., Spiers, C. J., De Bresser, J. H. P., Walker, R. J., and Bowen, L.: Fault rocks from the SAFOD core samples: Implications for weakening at shallow depths along the San Andreas Fault, California, J. Struct. Geol., 33, 132–144, https://doi.org/10.1016/j.jsg.2010.11.010, 2011.
Holyoke, C. W. and Kronenberg, A. K.: Accurate differential stress measurement using the molten salt cell and solid salt assemblies in the Griggs apparatus with applications to strength, piezometers and rheology, Tectonophysics, 494, 17–31, 2010.
Hose, R. K., Blake, M. C., and Smith, R. M.: Geology and mineral resources of White Pine County, Nevada, Nevada Bureau of Mines and Geology, Reno, Nevada, 1976.
John, B. E. and Mukasa, S. B.: Footwall rocks to the Mid-Tertiary Chemehuevi Detachment Fault: A window into the middle crust in the Southern Cordillera, J. Geophys. Res.-Sol. Ea., 95, 463–485, https://doi.org/10.1029/JB095iB01p00463, 1990.
Lee, J.: Rapid uplift and rotation of mylonitic rocks from beneath a detachment fault: Insights from potassium feldspar 40Ar ∕ 39Ar thermochronoloy, northern Snake Range, Nevada, Tectonics, 14, 54–77, 1995.
Lee, J. and Sutter, J. F.: Incremental 40Ar ∕ 39Ar thermochronology of mylonitic rocks from the northern Snake Range, Nevada, Tectonics, 10, 77–100, 1991.
Lee, J., Miller, E. L., and Sutter, J. F.: Ductile strain and metamorphism in an extensional tectonic setting: A case study from the northern Snake Range, Nevada, USA, in: Continental Extensional Tectonics, edited by: Coward, M. P., Geological Society Special Publication, 1987.
Lee, J., Gans, P. B., and Miller, E. L.: Geologic map of the Mormon Jack Pass Quadrangle, Nevada, Field Studies Map 17, Nevada Bureau of Mines and Geology, Reno, Nevada, 1999a.
Lee, J., Gans, P. B., and Miller, E. L.: Geologic map of the Third Butte East Quadrangle, Nevada, Field Studies Map 16, Nevada Bureau of Mines and Geology, Reno, Nevada, 1999b.
Lee, J., Miller, E. L., Gans, P. B., and Huggins, C. C.: Geologic map of the Mount Moriah Quadrangle, Nevada, Field Studies Map 19, Nevada Bureau of Mines and Geology, Reno, Nevada, 1999c.
Lewis, C. J., Wernicke, B. P., Selverstone, J., and Bartley, J. M.: Deep burial of the footwall of the northern Snake Range decollement, Nevada, Geol. Soc. Am. Bull., 111, 39–51, 1999.
Lister, G. S. and Snoke, A. W.: S-C Mylonites, J. Struct. Geol., 6, 617–638, 1984.
Lockner, D. A., Morrow, C., Moore, D., and Hickman, S.: Low strength of deep San Andreas fault gouge from SAFOD core, Nature, 472, 82–85, 2011.
Lovera, O. M., Heizler, M. T., and Harrison, T. M.: Argon diffusion domains in K-feldspar II: Kinetic properties of MH-10, Contrib. Mineral. Petr., 113, 381–393, 1993.
Lush, A. P., McGrew, A. J., Snoke, A. W., and Wright, J. E.: Allochthonous Archean basement in the northern East Humboldt Range, Nevada, Geology, 16, 349–353, 1988.
Luther, A., Axen, G., and Selverstone, J.: Particle-size distributions of low-angle normal fault breccias: Implications for slip mechanisms on weak faults, J. Struct. Geol., 55, 50–61, https://doi.org/10.1016/j.jsg.2013.07.009, 2013.
MacCready, T., Snoke, A. W., Wright, J. E., and Howard, K. A.: Mid-crustal flow during Tertiary extension in the Ruby Mountains core complex, Nevada, Geol. Soc. Am. Bull., 109, 1576–1594, 1997.
McGrew, A. J. and Snee, L. W.: 40Ar ∕ 39Ar thermochronologic constraints on the tectonothermal evolution of the northern East Humboldt Range metamorphic core complex, Nevada, Tectonophysics, 238, 425–450, 1994.
McGrew, A. J., Peters, M. T., and Wright, J. E.: Thermobarometric constraints on the tectonothermal evolution of the East Humboldt Range metamorphic core complex, Nevada, Geol. Soc. Am. Bull., 112, 45–60, 2000.
McKenzie, D. and Jackson, J. A.: Conditions for flow in the continental crust, Tectonics, 21, TC1055, https://doi.org/10.1029/2002TC001394, 2002.
McKenzie, D., Nimmo, F., Jackson, J. A., Gans, P. B., and Miller, E. L.: Characteristics and consequences of flow in the lower crust, J. Geophys. Res., 105, 11029–11046, 2000.
Miller, E. L. and Gans, P. B.: Cretaceous crustal structure and metamorphism in the hinterland of the Sevier thrust belt, western US Cordillera, Geology, 17, 59–62, 1989.
Miller, E. L. and Gans, P. B.: Geologic map of the Cove Quadrangle, Nevada, Field Studies Map 22, Nevada Bureau of Mines and Geology, Reno, Nevada, 1999.
Miller, E. L., Gans, P. B., and Garing, J.: The Snake Range decollement: an exhumed mid-Tertiary ductile-brittle transition, Tectonics, 2–3, 239–263, 1983.
Miller, E. L., Dumitru, T. A., Brown, R. W., and Gans, P. B.: Rapid Miocene slip on the Snake Range-Deep Creek Range fault system, east-central Nevada, Geol. Soc. Am. Bull., 111, 886–905, 1999.
Misch, P. H.: Regional structural reconnaissance in central-northeast Nevada and some adjacent areas: Observations and interpretations, International Association of Petroleum Geologists 11th Annual Field Conference Guidebook, International Association of Petroleum Geologists, 17–42, 1960.
Misch, P. and Hazzard, J. C.: Stratigraphy and metamorphism of Late Precambrian rocks in central northeastern Nevada and adjacent Utah, Am. Assoc. Petr. Geol. B., 46, 289–343, 1962.
Parrish, R. R., Carr, S. D., and Parkinson, D. L.: Eocene extensional tectonics and geochronology of the southern Omineca Belt, British Columbia and Washington, Tectonics, 7, 181–212, 1988.
Paterson, M. S.: The thermodynamics of water in quartz, Phys. Chem. Miner., 13, 245–255, 1986.
Paterson, M. S. and Luan, F. C.: Quartzite rheology under geological conditions, Geological Society London Special Publications, 54, 299–307, 1990.
Platt, J. P. and Behr, W. M.: Deep structure of lithospheric fault zones, Geophys. Res. Lett., 38, L24308, https://doi.org/10.1029/2011GL049719, 2011a.
Platt, J. P. and Behr, W. M.: Grainsize evolution in ductile shear zones: Implications for strain localization and the strength of the lithosphere, J. Struct. Geol., 33, 537–550, https://doi.org/10.1016/j.jsg.2011.01.018, 2011b.
Platt, J. P., Behr, W. M., and Cooper, F. J.: Metamorphic Core Complexes: Windows into the Mechanics and Rheology of the Crust, J. Geol. Soc., TC1055, https://doi.org/10.1144/jgs2014-036, 2015.
Post, A. and Tullis, J.: The rate of water penetration in experimentally deformed quartzite: implications for hydrolytic weakening, Tectonophysics, 295, 117–137, 1998.
Post, A. D., Tullis, J., and Yund, R. A.: Effects of chemical environment on dislocation creep of quartzite, J. Geophys. Res., 101, 22143–22155, 1996.
Rey, P. F., Teyssier, C., Kruckenberg, S. C., and Whitney, D. L.: Viscous collision in channel explains double domes in metamorphic core complexes, Geology, 39, 387–390, 2011.
Rybacki, E., Gottschalk, M., Wirth, R., and Dresen, G.: Influence of water fugacity and activation volume on the flow properties of fine-grained anorthite aggregates, J. Geophys. Res.-Sol. Ea., 111, B03203, https://doi.org/10.1029/2005JB003663, 2006.
Schleicher, A. M., van der Pluijm, B. A., and Warr, L. N.: Chlorite-smectite clay minerals and fault behavior: New evidence from the San Andreas Fault Observatory at Depth (SAFOD) core, Lithosphere, 4, 209–220, 2012.
Scott, R. J. and Lister, G. S.: Detachment faults: Evidence for a low-angle origin, Geology, 20, 833–836, 1992.
Selverstone, J., Axen, G. J., and Luther, A. L.: Fault localization controlled by fluid infiltration into mylonites: formation and strength of low-angle normal faults in the midcrustal brittle-plastic transition, J. Geophys. Res., 117, B06210, https://doi.org/10.1029/2012JB009171, 2012.
Sibson, R. H.: Continental fault structure and the shallow earthquake source, J. Geol. Soc., 140, 741–768, 1983.
Singleton, J. S. and Mosher, S.: Mylonitization in the lower plate of the Buckskin-Rawhide detachment fault, west-central Arizona: Implications for the geometric evolution of metamorphic core complexes, J. Struct. Geol., 39, 180–198, https://doi.org/10.1016/j.jsg.2012.02.013, 2012.
Spencer, J. E. and Reynolds, S. J.: Tectonics of Mid-Tertiary extension along a transect through west central Arizona, Tectonics, 10, 1204–1221, 1991.
Stipp, M. and Tullis, J.: The recrystallized grain size piezometer for quartz, Geophys. Res. Lett., 30, 3-1–3-5, https://doi.org/10.1029/2003GL018444, 2003.
Stipp, M., Stünitz, H., Heilbronner, R., and Schmid, S. M.: Dynamic recrystallization of quartz: correlation between natural and experimental conditions, Geological Society of London Special Publication, 200, 171–190, 2002.
Sullivan, W. A. and Snoke, A. W.: Comparative anatomy of core-complex development in the northeastern Great Basin, USA, Rocky Mountain Geology, 42, 1–29, 2007.
Wang, C.-Y., Okaya, D. A., Ruppert, C., Davis, G. A., Guo, T.-S., Zhong, Z., and Wenk, H. R.: Seismic reflectivity of the Whipple Mountain shear zone in Southern California, J. Geophys. Res., 94, 2989–3005, 1989.
Wernicke, B.: Cenozoic extensional tectonics of the US Cordillera, in: The Cordilleran Orogen: Conterminous US, edited by: Burchfiel, B. C., Lipman, P. W., and Zoback, M. L., Geological Society of America, Boulder, Colorado, 1992.
Wernicke, B. and Getty, S. R.: Intracrustal subduction and gravity currents in the deep crust: Sm-Nd, Ar-Ar, and thermobarometric constraints from the Skagit Gneiss Complex, Washington, Geol. Soc. Am. Bull., 109, 1149–1166, 1997.
Whitney, D. L., Teyssier, C., Rey, P. F., and Buck, W. R.: Continental and oceanic core complexes, Geol. Soc. Am. Bull., 125, 273–298, https://doi.org/10.1130/B30754.1, 2013.
Wong, M. S.: Evidence for Miocene reactivation of a late Cretaceous to early Tertiary shear zone in the Harcuvar and Buckskin-Rawhide metamorphic core complexes, Arizona, Denver, USA, 2013.
Wong, M. S. and Gans, P. B.: Geologic, structural, and thermochronologic constraints on the tectonic evolution of the Sierra Mazatán core complex, Sonora, Mexico: New insights into metamorphic core complex formation, Tectonics, 27, TC4013, https://doi.org/10.1029/2007TC002173, 2008.
Wright, J., Anderson, J., and Davis, G.: Timing of plutonism, mylonitization, and decompression in a metamorphic core complex, Geological Society of America Abstracts with Programs, 18, 201 pp., 1986.
Wust, S. L.: Regional correlation of extension directions in Cordilleran metamorphic core complexes, Geology, 14, 828–830, 1986.
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Short summary
We examine how deformation of the Earth’s crust varies with depth beneath the surface. By looking in detail at exhumed rocks from three case studies in the USA, we identify three main deformation zones: 1, a brittle deformation zone (low temperatures mean rocks break along faults and fractures); 2, a localized deformation zone (warmer rocks deform along discrete zones that shear but do not break); and 3, a distributed deformation zone (hot rocks flow ductilely and no discrete shearing occurs).
We examine how deformation of the Earth’s crust varies with depth beneath the surface. By...
