Articles | Volume 4, issue 2
https://doi.org/10.5194/se-4-511-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/se-4-511-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
18 Dec 2013
Research article |
| 18 Dec 2013
A database of plagioclase crystal preferred orientations (CPO) and microstructures – implications for CPO origin, strength, symmetry and seismic anisotropy in gabbroic rocks
T. Satsukawa
Graduate School of Science and Technology, Shizuoka University, Ohya 836, Shizuoka 422-8529, Japan
Géosciences Montpellier, Université Montpellier 2 and CNRS, CC 060, 34095 Montpellier cedex 5, France
present address: ARC Center of Excellence for Core to Crust Fluid Systems (CCFS) and GEMOC National Key Centre, Department of Earth and Planetary Sciences, Macquarie University, Sydney, NSW 2109, Australia
B. Ildefonse
Géosciences Montpellier, Université Montpellier 2 and CNRS, CC 060, 34095 Montpellier cedex 5, France
D. Mainprice
Géosciences Montpellier, Université Montpellier 2 and CNRS, CC 060, 34095 Montpellier cedex 5, France
L. F. G. Morales
Helmholtz Zentrum Potsdam, Deutsches GeoForschungsZentrum (GFZ), Telegrafenberg, 14473 Potsdam, Germany
K. Michibayashi
Graduate School of Science and Technology, Shizuoka University, Ohya 836, Shizuoka 422-8529, Japan
Institute of Geosciences, Shizuoka University, Ohya 836, Shizuoka 422-8529, Japan
F. Barou
Géosciences Montpellier, Université Montpellier 2 and CNRS, CC 060, 34095 Montpellier cedex 5, France
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Lonnie Justin Hufford, Leif Tokle, Whitney Maria Behr, Luiz Grafula Morales, and Claudio Madonna
EGUsphere, https://doi.org/10.5194/egusphere-2024-1507, https://doi.org/10.5194/egusphere-2024-1507, 2024
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We constrained the rheology of glaucophane aggregates deforming near its brittle-ductile transition with general shear deformation experiments. In the experiments, glaucophane first underwent work hardening and strain weakening associated with brittle grain size reduction and incipient dislocation processes, then evolved to steady-state dislocation creep. We developed a flow law that can be used to approximate the rheological behavior of mafic oceanic crust at blueschist facies conditions.
Alberto Ceccato, Luca Menegon, Giorgio Pennacchioni, and Luiz Fernando Grafulha Morales
Solid Earth, 9, 1399–1419, https://doi.org/10.5194/se-9-1399-2018, https://doi.org/10.5194/se-9-1399-2018, 2018
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Metamorphic fine-grained reaction products make continental crust rocks weaker. Microstructural processes related to the transformation of strong K-feldspar into weak aggregates of plagioclase and quartz during crustal deformation have been investigated through electron microscopy. Rheological calculations show that the occurrence of even small amounts of weak aggregates, whose deformation is mainly diffusion-assisted, would lead to a decrease in rock viscosity of several orders of magnitude.
Related subject area
Tectonics
Magma-poor continent–ocean transition zones of the southern North Atlantic: a wide-angle seismic synthesis of a new frontier
Cretaceous–Paleocene extension at the southwestern continental margin of India and opening of the Laccadive basin: constraints from geophysical data
Extensional exhumation of cratons: insights from the Early Cretaceous Rio Negro–Juruena belt (Amazonian Craton, Colombia)
Hydrogen solubility of stishovite provides insights into water transportation to the deep Earth
Networks of geometrically coherent faults accommodate Alpine tectonic inversion offshore southwestern Iberia
Interseismic and long-term deformation of southeastern Sicily driven by the Ionian slab roll-back
Oblique rifting triggered by slab tearing: the case of the Alboran rifted margin in the eastern Betics
Crustal Softening at Propagating Rift Tips, East Africa
(D)rifting in the 21st century: Key processes, natural hazards and geo-resources
Along-strike variation of volcanic addition controlling post breakup sedimentary infill: Pelotas margin, Austral South Atlantic
Rift and plume: a discussion on active and passive rifting mechanisms in the Afro-Arabian rift based on synthesis of geophysical data
Melt-enhanced strain localization and phase mixing in a large-scale mantle shear zone (Ronda peridotite, Spain)
Selective inversion of rift basins in lithospheric-scale analogue experiments
The link between Somalian Plate rotation and the East African Rift System: an analogue modelling study
Inversion of extensional basins parallel and oblique to their boundaries: inferences from analogue models and field observations from the Dolomites Indenter, European eastern Southern Alps
Magnetic fabric analyses of basin inversion: a sandbox modelling approach
Tectonic interactions during rift linkage: insights from analog and numerical experiments
The influence of crustal strength on rift geometry and development – insights from 3D numerical modelling
Construction of the Ukrainian Carpathian wedge from low-temperature thermochronology and tectono-stratigraphic analysis
Analogue modelling of basin inversion: a review and future perspectives
Insights into the interaction of a shale with CO2
Tectonostratigraphic evolution of the Slyne Basin
Assessing the role of thermal disequilibrium in the evolution of the lithosphere–asthenosphere boundary: an idealized model of heat exchange during channelized melt transport
Control of crustal strength, tectonic inheritance, and stretching/ shortening rates on crustal deformation and basin reactivation: insights from laboratory models
Numerical simulation of contemporary kinematics at the northeastern Tibetan Plateau and its implications for seismic hazard assessment
Late Cretaceous–early Palaeogene inversion-related tectonic structures at the northeastern margin of the Bohemian Massif (southwestern Poland and northern Czechia)
A tectonic-rules-based mantle reference frame since 1 billion years ago – implications for supercontinent cycles and plate–mantle system evolution
An efficient partial-differential-equation-based method to compute pressure boundary conditions in regional geodynamic models
The analysis of slip tendency of major tectonic faults in Germany
Earthquake ruptures and topography of the Chilean margin controlled by plate interface deformation
Together but separate: decoupled Variscan (late Carboniferous) and Alpine (Late Cretaceous–Paleogene) inversion tectonics in NW Poland
Late Quaternary faulting in the southern Matese (Italy): implications for earthquake potential and slip rate variability in the southern Apennines
The topographic signature of temperature-controlled rheological transitions in an accretionary prism
Rare earth elements associated with carbonatite–alkaline complexes in western Rajasthan, India: exploration targeting at regional scale
Exhumation and erosion of the Northern Apennines, Italy: new insights from low-temperature thermochronometers
Structural complexities and tectonic barriers controlling recent seismic activity in the Pollino area (Calabria–Lucania, southern Italy) – constraints from stress inversion and 3D fault model building
The Mid Atlantic Appalachian Orogen Traverse: a comparison of virtual and on-location field-based capstone experiences
Chronology of thrust propagation from an updated tectono-sedimentary framework of the Miocene molasse (western Alps)
Orogenic lithosphere and slabs in the greater Alpine area – interpretations based on teleseismic P-wave tomography
Ground-penetrating radar signature of Quaternary faulting: a study from the Mt. Pollino region, southern Apennines, Italy
U–Pb dating of middle Eocene–Pliocene multiple tectonic pulses in the Alpine foreland
Detrital zircon provenance record of the Zagros mountain building from the Neotethys obduction to the Arabia–Eurasia collision, NW Zagros fold–thrust belt, Kurdistan region of Iraq
The Subhercynian Basin: an example of an intraplate foreland basin due to a broken plate
Late to post-Variscan basement segmentation and differential exhumation along the SW Bohemian Massif, central Europe
Holocene surface-rupturing earthquakes on the Dinaric Fault System, western Slovenia
Contribution of gravity gliding in salt-bearing rift basins – a new experimental setup for simulating salt tectonics under the influence of sub-salt extension and tilting
3D crustal stress state of Germany according to a data-calibrated geomechanical model
Thick- and thin-skinned basin inversion in the Danish Central Graben, North Sea – the role of deep evaporites and basement kinematics
Complex rift patterns, a result of interacting crustal and mantle weaknesses, or multiphase rifting? Insights from analogue models
Interactions of plutons and detachments: a comparison of Aegean and Tyrrhenian granitoids
J. Kim Welford
Solid Earth, 15, 683–710, https://doi.org/10.5194/se-15-683-2024, https://doi.org/10.5194/se-15-683-2024, 2024
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I present a synthesis of the continent–ocean boundaries of the southern North Atlantic Ocean, as probed using seismic methods for rock velocity estimation, to assess their deep structures from the crust to the upper mantle and to discuss how they were formed. With this knowledge, it is possible to start evaluating these regions of the Earth for their capacity to produce hydrogen and critical minerals and to store excess carbon dioxide, all with the goal of greening our economy.
Mathews George Gilbert, Parakkal Unnikrishnan, and Munukutla Radhakrishna
Solid Earth, 15, 671–682, https://doi.org/10.5194/se-15-671-2024, https://doi.org/10.5194/se-15-671-2024, 2024
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The study identifies evidence for extension south of Tellicherry Arch along the southwestern continental margin of India through the integrated analysis of multichannel seismic and gravity data. The sediment deposition pattern indicates that this extension occurred after the Eocene. We further propose that the anticlockwise rotation of India and the passage of the Réunion plume have facilitated the opening of the Laccadive basin.
Ana Fonseca, Simon Nachtergaele, Amed Bonilla, Stijn Dewaele, and Johan De Grave
Solid Earth, 15, 329–352, https://doi.org/10.5194/se-15-329-2024, https://doi.org/10.5194/se-15-329-2024, 2024
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This study explores the erosion and exhumation processes and history of early continental crust hidden within the Amazonian Rainforest. This crust forms part of the Amazonian Craton, an ancient continental fragment. Our surprising findings reveal the area underwent rapid early Cretaceous exhumation triggered by tectonic forces. This discovery challenges the traditional perception that cratons are stable and long-lived entities and shows they can deform readily under specific geological contexts.
Mengdan Chen, Changxin Yin, Danling Chen, Long Tian, Liang Liu, and Lei Kang
Solid Earth, 15, 215–227, https://doi.org/10.5194/se-15-215-2024, https://doi.org/10.5194/se-15-215-2024, 2024
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Stishovite remains stable under mantle conditions and can incorporate various amounts of water in its crystal structure. We provide a systematic review of previous studies on water in stishovite and propose a new model for water solubility of Al-bearing stishovite. Calculation results based on this model suggest that stishovite may effectively accommodate water from the breakdown of hydrous minerals and could make an important contribution to water enrichment in the mantle transition zone.
Tiago M. Alves
Solid Earth, 15, 39–62, https://doi.org/10.5194/se-15-39-2024, https://doi.org/10.5194/se-15-39-2024, 2024
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Alpine tectonic inversion is reviewed for southwestern Iberia, known for its historical earthquakes and tsunamis. High-quality 2D seismic data image 26 faults mapped to a depth exceeding 10 km. Normal faults accommodated important vertical uplift and shortening. They are 100–250 km long and may generate earthquakes with Mw > 8.0. Regions of Late Mesozoic magmatism comprise thickened, harder crust, forming lateral buttresses to compression and promoting the development of fold-and-thrust belts.
Amélie Viger, Stéphane Dominguez, Stéphane Mazzotti, Michel Peyret, Maxime Henriquet, Giovanni Barreca, Carmelo Monaco, and Adrien Damon
EGUsphere, https://doi.org/10.5194/egusphere-2024-85, https://doi.org/10.5194/egusphere-2024-85, 2024
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New satellite geodetic data (PS-InSAR) evidence a generalized subsidence and an eastward tilting of Southeastern Sicily combined with a local relative uplift along its eastern coast. We perform flexural and elastic modeling, and shows that slab pull force induced by the Ionian slab roll-back and extrado deformation, reproduce the measured surface deformation. Finally, we propose an original seismic cycle model, mainly driven by the southward migration of the Ionian slab roll-back.
Marine Larrey, Frédéric Mouthereau, Damien Do Couto, Emmanuel Masini, Anthony Jourdon, Sylvain Calassou, and Véronique Miegebielle
Solid Earth, 14, 1221–1244, https://doi.org/10.5194/se-14-1221-2023, https://doi.org/10.5194/se-14-1221-2023, 2023
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Extension leading to the formation of ocean–continental transition can be highly oblique to the main direction of crustal thinning. Here we explore the case of a continental margin exposed in the Betics that developed in a back-arc setting perpendicular to the direction of the retreating Gibraltar subduction. We show that transtension is the main mode of crustal deformation that led to the development of metamorphic domes and extensional intramontane basins.
Folarin Kolawole and Rasheed Ajala
EGUsphere, https://doi.org/10.22541/essoar.168869169.98437293/v3, https://doi.org/10.22541/essoar.168869169.98437293/v3, 2023
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We investigate the upper-crustal structure of the Rukwa-Tanganyika Rift Zone, East Africa, where earthquakes anomalously cluster at the tips and axes of active rifts. Rift tip earthquakes collocate with a zone of distributed faulting in exposed crystalline basement. Seismic velocity structure reveals ~10 km-deep zones of anomalously high Vp/Vs ratios at the rift tips representing localized mechanical weakening of the crust, interpreted to be a precursory phase that initiates rift propagation.
Frank Zwaan, Tiago Alves, Patricia Cadenas, Mohamed Gouiza, Jordan Phethean, Sascha Brune, and Anne Glerum
EGUsphere, https://doi.org/10.5194/egusphere-2023-2548, https://doi.org/10.5194/egusphere-2023-2548, 2023
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Rifting and the break-up of continents is a key aspect of Earth’s plate tectonic system. A thorough understanding of the geological processes involved in rifting, as well as of the associated natural hazards and resources, is of great importance in the context of the energy transition. Here, we provide a coherent overview of rift processes and the links with hazards and resources, and we assess future challenges and opportunities for (collaboration between) researchers, government, and industry.
Marlise Colling Cassel, Nick Kusznir, Gianreto Manatschal, and Daniel Sauter
EGUsphere, https://doi.org/10.5194/egusphere-2023-2584, https://doi.org/10.5194/egusphere-2023-2584, 2023
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The Atlantic Ocean results from the break-up of the palaeocontinent Gondwana. Since then, the Brazilian and African margins record a thick volcanic layers and received a large contribution of sediments recording this process. We show the influence of early volcanics on the sediments deposited later by analysing the Pelotas Margin, south of Brazil. The volume of volcanic layers is not homogeneous along this sector, promoting variation in the space available to accommodate later sediments.
Ran Issachar, Peter Haas, Nico Augustin, and Jörg Ebbing
EGUsphere, https://doi.org/10.5194/egusphere-2023-2467, https://doi.org/10.5194/egusphere-2023-2467, 2023
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We explore the causal relationship between the arrival of the Afar plume and the initiation of the Afro-Arabian rift. We mapped the rift architecture in the triple junction region from geophysical data and reviewed the available geological temporal evidence. We infer a progressive development of the plume-rift system and suggest an interaction between active and passive mechanisms in which the plume provided a push-force that changed the kinematics of the associated plates.
Sören Tholen, Jolien Linckens, and Gernold Zulauf
Solid Earth, 14, 1123–1154, https://doi.org/10.5194/se-14-1123-2023, https://doi.org/10.5194/se-14-1123-2023, 2023
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Intense phase mixing with homogeneously distributed secondary phases and irregular grain boundaries and shapes indicates that metasomatism formed the microstructures predominant in the shear zone of the NW Ronda peridotite. Amphibole presence, olivine crystal orientations, and the consistency to the Beni Bousera peridotite (Morocco) point to OH-bearing metasomatism by small fractions of evolved melts. Results confirm a strong link between reactions and localized deformation in the upper mantle.
Anindita Samsu, Weronika Gorczyk, Timothy Chris Schmid, Peter Graham Betts, Alexander Ramsay Cruden, Eleanor Morton, and Fatemeh Amirpoorsaeed
Solid Earth, 14, 909–936, https://doi.org/10.5194/se-14-909-2023, https://doi.org/10.5194/se-14-909-2023, 2023
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When a continent is pulled apart, it breaks and forms a series of depressions called rift basins. These basins lie above weakened crust that is then subject to intense deformation during subsequent tectonic compression. Our analogue experiments show that when a system of basins is squeezed in a direction perpendicular to the main trend of the basins, some basins rise up to form mountains while others do not.
Frank Zwaan and Guido Schreurs
Solid Earth, 14, 823–845, https://doi.org/10.5194/se-14-823-2023, https://doi.org/10.5194/se-14-823-2023, 2023
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The East African Rift System (EARS) is a major plate tectonic feature splitting the African continent apart. Understanding the tectonic processes involved is of great importance for societal and economic reasons (natural hazards, resources). Laboratory experiments allow us to simulate these large-scale processes, highlighting the links between rotational plate motion and the overall development of the EARS. These insights are relevant when studying other rift systems around the globe as well.
Anna-Katharina Sieberer, Ernst Willingshofer, Thomas Klotz, Hugo Ortner, and Hannah Pomella
Solid Earth, 14, 647–681, https://doi.org/10.5194/se-14-647-2023, https://doi.org/10.5194/se-14-647-2023, 2023
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Through analogue models and field observations, we investigate how inherited platform–basin geometries control strain localisation, style, and orientation of reactivated and new structures during inversion. Our study shows that the style of evolving thrusts and their changes along-strike are controlled by pre-existing rheological discontinuities. The results of this study are relevant for understanding inversion structures in general and for the European eastern Southern Alps in particular.
Thorben Schöfisch, Hemin Koyi, and Bjarne Almqvist
Solid Earth, 14, 447–461, https://doi.org/10.5194/se-14-447-2023, https://doi.org/10.5194/se-14-447-2023, 2023
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A magnetic fabric analysis provides information about the reorientation of magnetic grains and is applied to three sandbox models that simulate different stages of basin inversion. The analysed magnetic fabrics reflect the different developed structures and provide insights into the different deformed stages of basin inversion. It is a first attempt of applying magnetic fabric analyses to basin inversion sandbox models but shows the possibility of applying it to such models.
Timothy Chris Schmid, Sascha Brune, Anne Glerum, and Guido Schreurs
Solid Earth, 14, 389–407, https://doi.org/10.5194/se-14-389-2023, https://doi.org/10.5194/se-14-389-2023, 2023
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Continental rifts form by linkage of individual rift segments and disturb the regional stress field. We use analog and numerical models of such rift segment interactions to investigate the linkage of deformation and stresses and subsequent stress deflections from the regional stress pattern. This local stress re-orientation eventually causes rift deflection when multiple rift segments compete for linkage with opposingly propagating segments and may explain rift deflection as observed in nature.
Thomas B. Phillips, John B. Naliboff, Ken J. W. McCaffrey, Sophie Pan, Jeroen van Hunen, and Malte Froemchen
Solid Earth, 14, 369–388, https://doi.org/10.5194/se-14-369-2023, https://doi.org/10.5194/se-14-369-2023, 2023
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Continental crust comprises bodies of varying strength, formed through numerous tectonic events. When subject to extension, these areas produce distinct rift and fault systems. We use 3D models to examine how rifts form above
strongand
weakareas of crust. We find that faults become more developed in weak areas. Faults are initially stopped at the boundaries with stronger areas before eventually breaking through. We relate our model observations to rift systems globally.
Marion Roger, Arjan de Leeuw, Peter van der Beek, Laurent Husson, Edward R. Sobel, Johannes Glodny, and Matthias Bernet
Solid Earth, 14, 153–179, https://doi.org/10.5194/se-14-153-2023, https://doi.org/10.5194/se-14-153-2023, 2023
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We study the construction of the Ukrainian Carpathians with LT thermochronology (AFT, AHe, and ZHe) and stratigraphic analysis. QTQt thermal models are combined with burial diagrams to retrieve the timing and magnitude of sedimentary burial, tectonic burial, and subsequent exhumation of the wedge's nappes from 34 to ∼12 Ma. Out-of-sequence thrusting and sediment recycling during wedge building are also identified. This elucidates the evolution of a typical wedge in a roll-back subduction zone.
Frank Zwaan, Guido Schreurs, Susanne J. H. Buiter, Oriol Ferrer, Riccardo Reitano, Michael Rudolf, and Ernst Willingshofer
Solid Earth, 13, 1859–1905, https://doi.org/10.5194/se-13-1859-2022, https://doi.org/10.5194/se-13-1859-2022, 2022
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When a sedimentary basin is subjected to compressional tectonic forces after its formation, it may be inverted. A thorough understanding of such
basin inversionis of great importance for scientific, societal, and economic reasons, and analogue tectonic models form a key part of our efforts to study these processes. We review the advances in the field of basin inversion modelling, showing how the modelling results can be applied, and we identify promising venues for future research.
Eleni Stavropoulou and Lyesse Laloui
Solid Earth, 13, 1823–1841, https://doi.org/10.5194/se-13-1823-2022, https://doi.org/10.5194/se-13-1823-2022, 2022
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Shales are identified as suitable caprock formations for geolocigal CO2 storage thanks to their low permeability. Here, small-sized shale samples are studied under field-representative conditions with X-ray tomography. The geochemical impact of CO2 on calcite-rich zones is for the first time visualised, the role of pre-existing micro-fissures in the CO2 invasion trapping in the matererial is highlighted, and the initiation of micro-cracks when in contact with anhydrous CO2 is demonstrated.
Conor M. O'Sullivan, Conrad J. Childs, Muhammad M. Saqab, John J. Walsh, and Patrick M. Shannon
Solid Earth, 13, 1649–1671, https://doi.org/10.5194/se-13-1649-2022, https://doi.org/10.5194/se-13-1649-2022, 2022
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The Slyne Basin is a sedimentary basin located offshore north-western Ireland. It formed through a long and complex evolution involving distinct periods of extension. The basin is subdivided into smaller basins, separated by deep structures related to the ancient Caledonian mountain-building event. These deep structures influence the shape of the basin as it evolves in a relatively unique way, where early faults follow these deep structures, but later faults do not.
Mousumi Roy
Solid Earth, 13, 1415–1430, https://doi.org/10.5194/se-13-1415-2022, https://doi.org/10.5194/se-13-1415-2022, 2022
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This study investigates one of the key processes that may lead to the destruction and destabilization of continental tectonic plates: the infiltration of buoyant, hot, molten rock (magma) into the base of the plate. Using simple calculations, I suggest that heating during melt–rock interaction may thermally perturb the tectonic plate, weakening it and potentially allowing it to be reshaped from beneath. Geochemical, petrologic, and geologic observations are used to guide model parameters.
Benjamin Guillaume, Guido M. Gianni, Jean-Jacques Kermarrec, and Khaled Bock
Solid Earth, 13, 1393–1414, https://doi.org/10.5194/se-13-1393-2022, https://doi.org/10.5194/se-13-1393-2022, 2022
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Under tectonic forces, the upper part of the crust can break along different types of faults, depending on the orientation of the applied stresses. Using scaled analogue models, we show that the relative magnitude of compressional and extensional forces as well as the presence of inherited structures resulting from previous stages of deformation control the location and type of faults. Our results gives insights into the tectonic evolution of areas showing complex patterns of deformation.
Liming Li, Xianrui Li, Fanyan Yang, Lili Pan, and Jingxiong Tian
Solid Earth, 13, 1371–1391, https://doi.org/10.5194/se-13-1371-2022, https://doi.org/10.5194/se-13-1371-2022, 2022
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We constructed a three-dimensional numerical geomechanics model to obtain the continuous slip rates of active faults and crustal velocities in the northeastern Tibetan Plateau. Based on the analysis of the fault kinematics in the study area, we evaluated the possibility of earthquakes occurring in the main faults in the area, and analyzed the crustal deformation mechanism of the northeastern Tibetan Plateau.
Andrzej Głuszyński and Paweł Aleksandrowski
Solid Earth, 13, 1219–1242, https://doi.org/10.5194/se-13-1219-2022, https://doi.org/10.5194/se-13-1219-2022, 2022
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Old seismic data recently reprocessed with modern software allowed us to study at depth the Late Cretaceous tectonic structures in the Permo-Mesozoic rock sequences in the Sudetes. The structures formed in response to Iberia collision with continental Europe. The NE–SW compression undulated the crystalline basement top and produced folds, faults and joints in the sedimentary cover. Our results are of importance for regional geology and in prospecting for deep thermal waters.
R. Dietmar Müller, Nicolas Flament, John Cannon, Michael G. Tetley, Simon E. Williams, Xianzhi Cao, Ömer F. Bodur, Sabin Zahirovic, and Andrew Merdith
Solid Earth, 13, 1127–1159, https://doi.org/10.5194/se-13-1127-2022, https://doi.org/10.5194/se-13-1127-2022, 2022
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We have built a community model for the evolution of the Earth's plate–mantle system. Created with open-source software and an open-access plate model, it covers the last billion years, including the formation, breakup, and dispersal of two supercontinents, as well as the creation and destruction of numerous ocean basins. The model allows us to
seeinto the Earth in 4D and helps us unravel the connections between surface tectonics and the
beating heartof the Earth, its convecting mantle.
Anthony Jourdon and Dave A. May
Solid Earth, 13, 1107–1125, https://doi.org/10.5194/se-13-1107-2022, https://doi.org/10.5194/se-13-1107-2022, 2022
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In this study we present a method to compute a reference pressure based on density structure in which we cast the problem in terms of a partial differential equation (PDE). We show in the context of 3D models of continental rifting that using the pressure as a boundary condition within the flow problem results in non-cylindrical velocity fields, producing strain localization in the lithosphere along large-scale strike-slip shear zones and allowing the formation and evolution of triple junctions.
Luisa Röckel, Steffen Ahlers, Birgit Müller, Karsten Reiter, Oliver Heidbach, Andreas Henk, Tobias Hergert, and Frank Schilling
Solid Earth, 13, 1087–1105, https://doi.org/10.5194/se-13-1087-2022, https://doi.org/10.5194/se-13-1087-2022, 2022
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Reactivation of tectonic faults can lead to earthquakes and jeopardize underground operations. The reactivation potential is linked to fault properties and the tectonic stress field. We create 3D geometries for major faults in Germany and use stress data from a 3D geomechanical–numerical model to calculate their reactivation potential and compare it to seismic events. The reactivation potential in general is highest for NNE–SSW- and NW–SE-striking faults and strongly depends on the fault dip.
Nadaya Cubas, Philippe Agard, and Roxane Tissandier
Solid Earth, 13, 779–792, https://doi.org/10.5194/se-13-779-2022, https://doi.org/10.5194/se-13-779-2022, 2022
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Earthquake extent prediction is limited by our poor understanding of slip deficit patterns. From a mechanical analysis applied along the Chilean margin, we show that earthquakes are bounded by extensive plate interface deformation. This deformation promotes stress build-up, leading to earthquake nucleation; earthquakes then propagate along smoothed fault planes and are stopped by heterogeneously distributed deformation. Slip deficit patterns reflect the spatial distribution of this deformation.
Piotr Krzywiec, Mateusz Kufrasa, Paweł Poprawa, Stanisław Mazur, Małgorzata Koperska, and Piotr Ślemp
Solid Earth, 13, 639–658, https://doi.org/10.5194/se-13-639-2022, https://doi.org/10.5194/se-13-639-2022, 2022
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Legacy 2-D seismic data with newly acquired 3-D seismic data were used to construct a new model of geological evolution of NW Poland over last 400 Myr. It illustrates how the destruction of the Caledonian orogen in the Late Devonian–early Carboniferous led to half-graben formation, how they were inverted in the late Carboniferous, how the study area evolved during the formation of the Permo-Mesozoic Polish Basin and how supra-evaporitic structures were inverted in the Late Cretaceous–Paleogene.
Paolo Boncio, Eugenio Auciello, Vincenzo Amato, Pietro Aucelli, Paola Petrosino, Anna C. Tangari, and Brian R. Jicha
Solid Earth, 13, 553–582, https://doi.org/10.5194/se-13-553-2022, https://doi.org/10.5194/se-13-553-2022, 2022
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We studied the Gioia Sannitica normal fault (GF) within the southern Matese fault system (SMF) in southern Apennines (Italy). It is a fault with a long slip history that has experienced recent reactivation or acceleration. Present activity has resulted in late Quaternary fault scarps and Holocene surface faulting. The maximum slip rate is ~ 0.5 mm/yr. Activation of the 11.5 km GF or the entire 30 km SMF can produce up to M 6.2 or M 6.8 earthquakes, respectively.
Sepideh Pajang, Laetitia Le Pourhiet, and Nadaya Cubas
Solid Earth, 13, 535–551, https://doi.org/10.5194/se-13-535-2022, https://doi.org/10.5194/se-13-535-2022, 2022
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The local topographic slope of an accretionary prism is often used to determine the effective friction on subduction megathrust. We investigate how the brittle–ductile and the smectite–illite transitions affect the topographic slope of an accretionary prism and its internal deformation to provide clues to determine the origin of observed low topographic slopes in subduction zones. We finally discuss their implications in terms of the forearc basin and forearc high genesis and nature.
Malcolm Aranha, Alok Porwal, Manikandan Sundaralingam, Ignacio González-Álvarez, Amber Markan, and Karunakar Rao
Solid Earth, 13, 497–518, https://doi.org/10.5194/se-13-497-2022, https://doi.org/10.5194/se-13-497-2022, 2022
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Rare earth elements (REEs) are considered critical mineral resources for future industrial growth due to their short supply and rising demand. This study applied an artificial-intelligence-based technique to target potential REE-deposit hosting areas in western Rajasthan, India. Uncertainties associated with the prospective targets were also estimated to aid decision-making. The presented workflow can be applied to similar regions elsewhere to locate potential zones of REE mineralisation.
Erica D. Erlanger, Maria Giuditta Fellin, and Sean D. Willett
Solid Earth, 13, 347–365, https://doi.org/10.5194/se-13-347-2022, https://doi.org/10.5194/se-13-347-2022, 2022
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We present an erosion rate analysis on dated rock and sediment from the Northern Apennine Mountains, Italy, which provides new insights on the pattern of erosion rates through space and time. This analysis shows decreasing erosion through time on the Ligurian side but increasing erosion through time on the Adriatic side. We suggest that the pattern of erosion rates is consistent with the present asymmetric topography in the Northern Apennines, which has likely existed for several million years.
Daniele Cirillo, Cristina Totaro, Giusy Lavecchia, Barbara Orecchio, Rita de Nardis, Debora Presti, Federica Ferrarini, Simone Bello, and Francesco Brozzetti
Solid Earth, 13, 205–228, https://doi.org/10.5194/se-13-205-2022, https://doi.org/10.5194/se-13-205-2022, 2022
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The Pollino region is a highly seismic area of Italy. Increasing the geological knowledge on areas like this contributes to reducing risk and saving lives. We reconstruct the 3D model of the faults which generated the 2010–2014 seismicity integrating geological and seismological data. Appropriate relationships based on the dimensions of the activated faults suggest that they did not fully discharge their seismic potential and could release further significant earthquakes in the near future.
Steven Whitmeyer, Lynn Fichter, Anita Marshall, and Hannah Liddle
Solid Earth, 12, 2803–2820, https://doi.org/10.5194/se-12-2803-2021, https://doi.org/10.5194/se-12-2803-2021, 2021
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Field trips in the Stratigraphy, Structure, Tectonics (SST) course transitioned to a virtual format in Fall 2020, due to the COVID pandemic. Virtual field experiences (VFEs) were developed in web Google Earth and were evaluated in comparison with on-location field trips via an online survey. Students recognized the value of VFEs for revisiting outcrops and noted improved accessibility for students with disabilities. Potential benefits of hybrid field experiences were also indicated.
Amir Kalifi, Philippe Hervé Leloup, Philippe Sorrel, Albert Galy, François Demory, Vincenzo Spina, Bastien Huet, Frédéric Quillévéré, Frédéric Ricciardi, Daniel Michoux, Kilian Lecacheur, Romain Grime, Bernard Pittet, and Jean-Loup Rubino
Solid Earth, 12, 2735–2771, https://doi.org/10.5194/se-12-2735-2021, https://doi.org/10.5194/se-12-2735-2021, 2021
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Molasse deposits, deposited and deformed at the western Alpine front during the Miocene (23 to 5.6 Ma), record the chronology of that deformation. We combine the first precise chronostratigraphy (precision of ∼0.5 Ma) of the Miocene molasse, the reappraisal of the regional structure, and the analysis of growth deformation structures in order to document three tectonic phases and the precise chronology of thrust westward propagation during the second one involving the Belledonne basal thrust.
Mark R. Handy, Stefan M. Schmid, Marcel Paffrath, Wolfgang Friederich, and the AlpArray Working Group
Solid Earth, 12, 2633–2669, https://doi.org/10.5194/se-12-2633-2021, https://doi.org/10.5194/se-12-2633-2021, 2021
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New images from the multi-national AlpArray experiment illuminate the Alps from below. They indicate thick European mantle descending beneath the Alps and forming blobs that are mostly detached from the Alps above. In contrast, the Adriatic mantle in the Alps is much thinner. This difference helps explain the rugged mountains and the abundance of subducted and exhumed units at the core of the Alps. The blobs are stretched remnants of old ocean and its margins that reach down to at least 410 km.
Maurizio Ercoli, Daniele Cirillo, Cristina Pauselli, Harry M. Jol, and Francesco Brozzetti
Solid Earth, 12, 2573–2596, https://doi.org/10.5194/se-12-2573-2021, https://doi.org/10.5194/se-12-2573-2021, 2021
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Past strong earthquakes can produce topographic deformations, often
memorizedin Quaternary sediments, which are typically studied by paleoseismologists through trenching. Using a ground-penetrating radar (GPR), we unveiled possible buried Quaternary faulting in the Mt. Pollino seismic gap region (southern Italy). We aim to contribute to seismic hazard assessment of an area potentially prone to destructive events as well as promote our workflow in similar contexts around the world.
Luca Smeraglia, Nathan Looser, Olivier Fabbri, Flavien Choulet, Marcel Guillong, and Stefano M. Bernasconi
Solid Earth, 12, 2539–2551, https://doi.org/10.5194/se-12-2539-2021, https://doi.org/10.5194/se-12-2539-2021, 2021
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In this paper, we dated fault movements at geological timescales which uplifted the sedimentary successions of the Jura Mountains from below the sea level up to Earth's surface. To do so, we applied the novel technique of U–Pb geochronology on calcite mineralizations that precipitated on fault surfaces during times of tectonic activity. Our results document a time frame of the tectonic evolution of the Jura Mountains and provide new insight into the broad geological history of the Western Alps.
Renas I. Koshnaw, Fritz Schlunegger, and Daniel F. Stockli
Solid Earth, 12, 2479–2501, https://doi.org/10.5194/se-12-2479-2021, https://doi.org/10.5194/se-12-2479-2021, 2021
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As continental plates collide, mountain belts grow. This study investigated the provenance of rocks from the northwestern segment of the Zagros mountain belt to unravel the convergence history of the Arabian and Eurasian plates. Provenance data synthesis and field relationships suggest that the Zagros Mountains developed as a result of the oceanic crust emplacement on the Arabian continental plate, followed by the Arabia–Eurasia collision and later uplift of the broader region.
David Hindle and Jonas Kley
Solid Earth, 12, 2425–2438, https://doi.org/10.5194/se-12-2425-2021, https://doi.org/10.5194/se-12-2425-2021, 2021
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Central western Europe underwent a strange episode of lithospheric deformation, resulting in a chain of small mountains that run almost west–east across the continent and that formed in the middle of a tectonic plate, not at its edges as is usually expected. Associated with these mountains, in particular the Harz in central Germany, are marine basins contemporaneous with the mountain growth. We explain how those basins came to be as a result of the mountains bending the adjacent plate.
Andreas Eberts, Hamed Fazlikhani, Wolfgang Bauer, Harald Stollhofen, Helga de Wall, and Gerald Gabriel
Solid Earth, 12, 2277–2301, https://doi.org/10.5194/se-12-2277-2021, https://doi.org/10.5194/se-12-2277-2021, 2021
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We combine gravity anomaly and topographic data with observations from thermochronology, metamorphic grades, and the granite inventory to detect patterns of basement block segmentation and differential exhumation along the southwestern Bohemian Massif. Based on our analyses, we introduce a previously unknown tectonic structure termed Cham Fault, which, together with the Pfahl and Danube shear zones, is responsible for the exposure of different crustal levels during late to post-Variscan times.
Christoph Grützner, Simone Aschenbrenner, Petra Jamšek
Rupnik, Klaus Reicherter, Nour Saifelislam, Blaž Vičič, Marko Vrabec, Julian Welte, and Kamil Ustaszewski
Solid Earth, 12, 2211–2234, https://doi.org/10.5194/se-12-2211-2021, https://doi.org/10.5194/se-12-2211-2021, 2021
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Several large strike-slip faults in western Slovenia are known to be active, but most of them have not produced strong earthquakes in historical times. In this study we use geomorphology, near-surface geophysics, and fault excavations to show that two of these faults had surface-rupturing earthquakes during the Holocene. Instrumental and historical seismicity data do not capture the strongest events in this area.
Michael Warsitzka, Prokop Závada, Fabian Jähne-Klingberg, and Piotr Krzywiec
Solid Earth, 12, 1987–2020, https://doi.org/10.5194/se-12-1987-2021, https://doi.org/10.5194/se-12-1987-2021, 2021
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A new analogue modelling approach was used to simulate the influence of tectonic extension and tilting of the basin floor on salt tectonics in rift basins. Our results show that downward salt flow and gravity gliding takes place if the flanks of the rift basin are tilted. Thus, extension occurs at the basin margins, which is compensated for by reduced extension and later by shortening in the graben centre. These outcomes improve the reconstruction of salt-related structures in rift basins.
Steffen Ahlers, Andreas Henk, Tobias Hergert, Karsten Reiter, Birgit Müller, Luisa Röckel, Oliver Heidbach, Sophia Morawietz, Magdalena Scheck-Wenderoth, and Denis Anikiev
Solid Earth, 12, 1777–1799, https://doi.org/10.5194/se-12-1777-2021, https://doi.org/10.5194/se-12-1777-2021, 2021
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Knowledge about the stress state in the upper crust is of great importance for many economic and scientific questions. However, our knowledge in Germany is limited since available datasets only provide pointwise, incomplete and heterogeneous information. We present the first 3D geomechanical model that provides a continuous description of the contemporary crustal stress state for Germany. The model is calibrated by the orientation of the maximum horizontal stress and stress magnitudes.
Torsten Hundebøl Hansen, Ole Rønø Clausen, and Katrine Juul Andresen
Solid Earth, 12, 1719–1747, https://doi.org/10.5194/se-12-1719-2021, https://doi.org/10.5194/se-12-1719-2021, 2021
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We have analysed the role of deep salt layers during tectonic shortening of a group of sedimentary basins buried below the North Sea. Due to the ability of salt to flow over geological timescales, the salt layers are much weaker than the surrounding rocks during tectonic deformation. Therefore, complex structures formed mainly where salt was present in our study area. Our results align with findings from other basins and experiments, underlining the importance of salt tectonics.
Frank Zwaan, Pauline Chenin, Duncan Erratt, Gianreto Manatschal, and Guido Schreurs
Solid Earth, 12, 1473–1495, https://doi.org/10.5194/se-12-1473-2021, https://doi.org/10.5194/se-12-1473-2021, 2021
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We used laboratory experiments to simulate the early evolution of rift systems, and the influence of structural weaknesses left over from previous tectonic events that can localize new deformation. We find that the orientation and type of such weaknesses can induce complex structures with different orientations during a single phase of rifting, instead of requiring multiple rifting phases. These findings provide a strong incentive to reassess the tectonic history of various natural examples.
Laurent Jolivet, Laurent Arbaret, Laetitia Le Pourhiet, Florent Cheval-Garabédian, Vincent Roche, Aurélien Rabillard, and Loïc Labrousse
Solid Earth, 12, 1357–1388, https://doi.org/10.5194/se-12-1357-2021, https://doi.org/10.5194/se-12-1357-2021, 2021
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Although viscosity of the crust largely exceeds that of magmas, we show, based on the Aegean and Tyrrhenian Miocene syn-kinematic plutons, how the intrusion of granites in extensional contexts is controlled by crustal deformation, from magmatic stage to cold mylonites. We show that a simple numerical setup with partial melting in the lower crust in an extensional context leads to the formation of metamorphic core complexes and low-angle detachments reproducing the observed evolution of plutons.
Cited articles
Abramson, E. H., Brown, J. M., Slutsky, L. J., and Zang, J. J.: The elastic constants of San Carlos olivine to 17 GPa, J. Geophys. Res., 102, 12253–12263, 1997.
Aleksandrov, K. S. and Ryzhova, T. V.: The elastic properties of rock forming minerals, pyroxenes and amphiboles, Bull. Acad. Sci. USSR Geophys. Ser., 871–875, 1961.
Aleksandrov, K. S., Alchikov, U. V., Belikov, B. P., Zaslavskii, B. I., and Krupnyi, A. I.: Velocities of elastic waves in minerals at atmospheric pressure and increasing precision of elastic constants by means of EVM (in Russian), Izvestiya of the Academy of the Sciences of the USSR, Geologic Series, 10, 15–24, 1974.
Bascou, J., Camps, P., and Dautria, J. M.: Magnetic versus crystallographic fabrics in a basaltic lava flow, J. Volcano. Geotherm. Res., 145, 119–135, 2005.
Ben Ismaïl, W. and Mainprice, D.: An olivine fabric database: An overview of upper mantle fabrics and seismic anisotropy, Tectonophysics, 296, 145–157, 1998.
Benn, K. and Allard, B.: Preferred mineral orientations related to magmatic flow in ophiolite layered gabbros, J. Petrol., 30, 925–946, 1989.
Benn, K. and Mainprice, D.: An interactive program for the determination of plagioclase crystal axes orientations from U-stage measurements: an aid for petrofabric studies, Comput. Geosci., 15, 1127–1142, 1989.
Blackman, D. K., Ildefonse, B., John, B. E., Ohara, Y., Miller, D. J., MacLeod, C. J. and the Expedition 304/305 Scientists: Proc. IODP, 304/305: College Station TX (Integrated Ocean Drilling Program Management International, Inc.), https://doi.org/10.2204/iodp.proc.304305.2006, 2006.
Boudier, F. and Nicolas, A.: Nature of the moho transition zone in the Oman ophiolite, J. Petrol., 36, 777–796, 1995.
Browaeys J. T. and Chevrot, S.: Decomposition of the elastic tensor and geophysical applications, Geophys. J. Int., 159, 667–678, 2004.
Bunge, H. J.: Texture Analysis in Materials Sciences, Buttleworth, London, 1982.
Chai, M., Brown, J. M., Slutsky, L. J., and Zang, J.: The elastic constants of an aluminous orthopyroxene to 12.5 GPa, J. Geophys. Res., 102, 14779–14785, 1997.
Collins, M. D. and Brown, J. M.: Elasticity of an upper mantle clinopyroxene, Phys. Chem. Miner., 26, 7–13, 1998.
Díaz-Azpiroz, M., Lloyd, G.E. and Fernandez, C.: Deformation mechanism of plagioclase and seismic anisotropy of the Acebuches metabasites (SW Iberian massif), in: Deformation Mechanism, Rheology and Tectonics: Microstrucures, Mechanics and Anisotropy, edited by: Prior, D. L., Rutter, E. H., and Tatham, D. J.,Geological Society, London, Special Publications, 360, 79–95, 2011.
Dick, H. J. B., Natland, J. H., Miller, D. J. and the Shipboard Scientific Party: Proc. ODP, Init. Repts., 176: College Station, TX (Ocean Drilling Program), https://doi.org/10.2973/odp.proc.ir.176.1999, 1999.
Dick, H. J. B., Natland, J. H., Alt, J. C., Bach, W., Bideau, D., Gee, J. S., Haggas, S., Hertogen, J. G. H., Hirth, G., Holm, P. M., Ildefonse, B., Iturrino, G. J., John, B. E., Kelley, D. S., Kikawa, E., Kingdon, A., Le Roux, P. J., Maeda, J., Meyer, P. S., Miller, D. J., Naslund, H. R., Niu, Y., Robinson, P. T., Snow, J., Stephen, R. A., Trimby, P. W., Worm, H.-U., and Yoshinobu, A.: A long in situ section of the lower ocean crust: results of ODP Leg 176 drilling at the Southwest Indian Ridge, Earth Planet. Sci. Lett., 179, 31–51, 2000.
Dijkstra, A. H., Drury, M. R., and Vissers, R. L. M.: On the role of melt-rock reaction in mantle shear zone formation in the Othris Peridotite Massif (Greece), J. Struct. Geol., 24, 1431–1450, 2002.
Egydio-Silva, M., Vauchez, A., Bascou, J., and Hippertt, L.: Hightemperature deformation in the Neoproterozoic transpressional Ribeira belt, southeast Brazil, Tectonophysics, 352, 203–224, 2002.
Engler, O. and Randle, V.: Introduction to texture analysis; macrotexture, microtexture, and orientation mapping, 2nd Edn., CRC Press Taylor & Francis Groul, Boca Raton, Fl, USA, 2009.
Fontaine, F. R., ildefonse, B., and Bagdassarov, N. S.: Temperature dependence of shear wave attenuation in partially molten gabbronorite at seismic frequencies, Geophys. J. Int., 163, 1025–1038, https://doi.org/10.1111/j.1365-246X.2005.02767.x, 2005.
France, L., Ildefonse, B., and Koepke, J.: Interactions between magma and hydrothermal system in Oman ophiolite and in IODP Hole 1256D: Fossilization of a dynamic melt lens at fast spreading ridges, Geochem. Geophy. Geosy., 10, Q10O19, https://doi.org/10.1029/2009GC002652, 2009.
Francheteau, J., Armijo, R., Cheminée, J.L., Hekinian, R., Lonsdale, P., and Blum, N.: 1 Ma East Pacific Rise oceanic crust and uppermost mantle exposed by rifting in Hess Deep (equatorial Pacific Ocean), Earth Planet. Sci. Lett., 101, 281–295,. https://doi.org/10.1016/0012-821X(90)90160-Y, 1990.
Gibert, B. and Mainprice, D.: Effect of crystal preferred orientations on the thermal diffusivity of quartz polycrystalline aggregates at high pressure, Tectonophysics, 465, 150–163, https://doi.org/10.1016/j.tecto.2008.11.006, 2009.
Gillis, K., Mével, C., Allan, J., and the Shipboard Scientific Party: Proc. ODP, Init. Repts., 147: College Station, TX (Ocean Drilling Program), 1993.
Harder, S.: Analysis of elastic symmetry from velocity measurements with applications to dunite and bronzitite, Geophys. J., 94, 469–477, 1988.
Harigane, Y., Michibayashi, K., and Ohara, Y.: Shearing within lower crust during progressive retrogression: Structural analysis of gabbroic rocks from the Godzilla Mullion, an oceanic core complex in the Parece Vela backarc basin, Tectonophysics, 457, 183–196, https://doi.org/10.1016/j.tecto.2008.06.009, 2008.
Harigane, Y., Michibayashi, K., and Ohara, Y.: Deformation and hydrothermal metamorphism of gabbroic rocks within the Godzilla Megamullion, Parece Vela Basin, Philippine Sea, Lithos, 124, 185–199, https://doi.org/10.1016/j.lithos.2011.02.001, 2011.
Harris, M., Henstock, T., Ildefonse, B., and Teagle, D.A.: Slow cooling of the ocean crust, fast spreading benchmarks for slow spreading ridges, Abstract OS13B-1719 presented at 2012 Fall Meeting, AGU, San Francisco, Calif., 3–7 December, 2012.
Hey, R. N., Deffeyes, K. S., Johnson, G. L., and Lowrie, A.: The Galapagos triple junction and plate motionsin the East Pacific, Nature, 237, 20–22, 1972.
Hielscher, R. and Schaeben, H.: A novel pole figure inversion method: specification of the MTEX algorithm, J. Appl. Crystallogr., 41, 1024–1037, 2008.
Higgie, K. and Tommasi, A.: Feedbacks between deformation and melt distribution in the crust-mantle transition zone of the Oman ophiolite, Earth Planet. Sci. Lett., 359–360, 61–72, 2012.
Ildefonse, B., Valsardieu, B., Pezard, P., Mainprice, D., and Garrido, C. J.: Petrophysics and anisotropy of gabbros and peridotites from the Oman ophiolite, in: Textures and physical properties of rocks, Göttinger Arbeiten zur Geologie und Paläontologie, Leiss, B., Ullemeyer, K., and Weber, K., Geologische Institute, Universität Göttingen, Göttingen, 73–74, 1999.
Imon, R., Okudaira, T., and Fujimoto, A.: Dissolution and precipitation processes in the deformed amphibolites: an example from the ductile shear zone of the Ryoke metamorphic belt, SW Japan, J. Metam. Geol., 22, 231–243, 2002.
Ji, S. and Mainprice, D.: Natural deformation fabrics of plagioclase: implication for slip systems and seismic anisotropy, Tectonophysics, 147, 145–163, 1988.
Jiang, Z., Prior, D. J., and Wheeler, J.: Albite crystallographic preferred orientation and grain misorientation distribution in a low-grade mylonite: implications for granular flow, J. Struct. Geol., 22, 1663–1674, 2000.
Jousselin, D., Morales, L. F. G., Nicolle, M., and Stephant, A.: Gabbro layering induced by simple shear in the Oman ophiolite Moho transition zone, Earth Plane. Sci. Lett., 331–332, 55–66, https://doi.org/10.1016/j.epsl.2012.02.022, 2012.
Jung, H. and Karato, S.-I.: Water-Induced Fabric Transitions in Olivine, Science, 293, 1460–1463, 2001.
Karato, S.-I.: Deformation of Earth Materials, Cambridge University Press, 2008.
Kelemen, P. B., Kikawa, E., Miller, D. J., and the Shipboard Scientific Party: Proc. ODP, Init. Repts., 209: College Station, TX (Ocean Drilling Program), https://doi.org/10.2973/odp.proc.ir.209.2004, 2004.
Koepke, J., Christie, D. M., Dziony, W., Holtz, F., Lattard, D., Maclennan, J., Park, S., Scheibner, B., Yamasaki, T., and Yamazaki, S.: Petrography of the dike-gabbro transition at IODP Site 1256 (equatorial Pacific): The evolution of the granoblastic dikes, Geochem. Geophy. Geosy., 9, Q07O09, https://doi.org/10.1029/2008GC001939, 2008.
Koepke, J., France, L., Mueller, T., Faure, F., Goetze, N., Dziony, W., and Ildefonse, B.: Gabbros from IODP Site 1256, equatorial Pacific: Insight into axial magma chamber processes at fast spreading ocean ridges, Geochem. Geophys. Geosyst., 12, Q09014, https://doi.org/10.1029/2011gc003655, 2011.
Kruhl, J. H.: Preferred lattice orientations of plagioclase from amphibolite and greenschist facies rocks near the Insubric Line (Western Alps), Tectonophysics, 135, 233–242, https://doi.org/10.1016/0040-1951(87)90164-8, 1987.
Lamoureux, G., Ildefonse, B., and Mainprice, D.: Modelling the seismic properties of fast-spreading ridge crustal Low-Velocity Zones: insights from Oman gabbro textures, Tectonophysics, 312, 283–301, 1999.
Linckens, J., Herwegh, M., Müntener, O., and Mercolli, I.: Evolution of a polymineralic mantle shear zone and the role of second phases in the localization of deformation, J. Geophys. Res., 116, B06210, https://doi.org/10.1029/2010JB008119, 2011.
Lissenberg, C. J., MacLeod, C. J., Howard, K. A., and Godard, M.: Pervasive reactive melt migration through fast-spreading lower oceanic crust (Hess Deep, equatorial Pacific Ocean), Earth Planet. Sci. Lett., 361, 436–447, https://doi.org/10.1016/j.epsl.2012.11.012, 2013.
Lloyd, G. E., Butler, R. W. H., Casey, M., and Mainprice, D.: Deformation fabrics, mica and seismic properties of the continental crust, Earth Planet. Sci. Lett., 288, 320–328, 2009.
Mackwell, S. J. and Kohlstedt, D.: Diffusion of hydrogen in olivine: implications for water in the mantle, J. Geophys. Res., 95, 5079–5088, 1990.
MacLeod, C. J. and Yaouancq, G.: A fossil melt lens in the Oman ophiolite: implications for magma chamber processes at fast spreading ridges, Earth Planet. Sci. Lett., 176, 357–373, 2000.
MacLeod, C. J., Boudier, F., Yaouancq, G., and Richter, C.: Gabbro fabrics from Site 894, Hess Deep: implications for magma chamber processes at the East Pacific Rise, in: Proc. ODP, Sci. Results, 147, edited by: Mével, C., Gillis, K. M., Allan, J. F., and Meyer, P. S., College Station, TX (Ocean Drilling Program), 317–328, https://doi.org/10.2973/odp.proc.sr.147.018.1996, 1996.
MacLeod, C. J., Lissenberg, J. C. L., Howard, K. A., Ildefonse, B., and Morris, A.: Fast Spreading Mid Ocean Ridge Magma Chamber Processes: New Constraints from Hess Deep, AGU 2011 Fall Meeting abstract, V21B-2499, 2011.
Marshal, D. B. and McLaren, A. C.: Deformation mechanisms in experimentally deformed plagioclase feldspars, Phys. Chem. Miner., 1, 351–370, 1977.
Mainprice, D.: An efficient FORTRAN program to calculate seismic anisotropy from the lattice preferred orientation of minerals, Comput. Geosci., 16, 385–393, 1990.
Mainprice, D. and Humbert, M.: Methods of calculating petrophysical properties from lattice preferred orientation data, Surv. Geophys., 15, 575–592, 1994.
Mainprice, D. and Nicolas, A.: Development of shape and lattice preferred orientations: application to the seismic anisotropy of the lower crust, J. Struct. Geol., 11, 175–189, 1989.
Mainprice, D. and Silver, P. G.: Interpretation of SKS-waves using samples from the subcontinental lithosphere, Phys. Earth Planet. Int., 78, 257–280, 1993.
Mainprice, D., Hielscher, R., and Schaeben, H.: Calculating anisotropic physical properties from texture data using the MTEX open source package, in: Deformation mechanisms, rheology and tectonics: microstructures, mechanics and anisotropy, edited by: Prior, D. J., Rutter, E. H., and Tatham, D. J., Geological Society, London, Special Publications, 360, 175–192, 2011.
Mehl, L. and Hirth, G.: Plagioclase preferred orientation in layered mylonites: Evaluation of flow laws for the lower crust, J. Geophys. Res., 113, B05202, https://doi.org/10.1029/2007JB005075, 2008.
Montardi, Y. and Mainprice, D.: A TEM study of the natural plastic deformation of calcic plagioclase, Bull. Mineral., 110, 1–14, 1987.
Morales, L. F. G., Boudier, F., and Nicolas, A.: Microstructures and crystallographic preferred orientation of anorthosites from Oman ophiolite and dynamics of melt lenses, Tectonics, 30, TC2011, https://doi.org/10.1029/2010TC002697, 2011.
Natland, J. H. and Dick, H. J. B.: Melt migration through high-level gabbroic cumulates of the East Pacific Rise at Hess Deep: the origin of magma lenses and the deep crustal structure of fast-spreading ridges, in: Proc. ODP, Sci. Results, 147, edited by: Mével, C., Gillis, K. M., Allan, J. F., and Meyer, P. S., College Station, TX (Ocean Drilling Program), 21–58, https://doi.org/10.2973/odp.proc.sr.147.002.1996, 1996.
Nicolas, A. and Christensen, N. I.: Formation of anisotropy in upper mantle peridotites: A review, in: Composition, Structure and Dynamics of the Lithosphere-Asthenosphere System, Geodyn. Ser., vol. 16, edited by: Fuchs, K. and Froidevaux, C., 111–123, AGU, Washington DC, 1987.
Nicolas, A., Boudier, F., Ildefonse, B., and Ball, B.: Accretion of Oman and United Arab Emirates ophiolite: Discussion of a new structural map, Mar. Geophys. Res., 21, 147–179, https://doi.org/10.1023/A:1026769727917, 2000.
Nicolas, A., Boudier, F., Koepke, J., France, L., Ildefonse, B., and Mével, C.: Root zone of the sheeted dike complex in the Oman ophiolite, Geochem. Geophy. Geosy., 9, Q05001, https://doi.org/10.1029/2007GC001918, 2008.
Nicolas, A., Boudier, F., and France, L.: Subsidence in magma chamber and the development of magmatic foliation in Oman ophiolite gabbros, Earth Planet. Sci. Lett., 284, 76–87, https://doi.org/10.1016/j.epsl.2009.04.012, 2009.
Pallister, J. S. and Hopson, C. A.: Samail ophiolite plutonic suite: Field relations, phase variation, cryptic variation and layering, and a model of a spreading ridge magma chamber, J. Geophys. Res., 86, 2593–2644, 1981.
Pearce, M. A., Wheeler, J., and Prior, D. J.: Relative strength of mafic and felsic rocks during amphibolite facies metamorphism and deformation, J. Struct. Geol., 33, 662–675, https://doi.org/10.1016/j.jsg.2011.01.002, 2011.
Pedersen, R. B., Malpas, J., and Falloon, T.: Petrology and geochemistry of gabbroic and related rocks from Site 894, Hess Deep, Proc. Ocean Drill. Program Sci. Results, 147, 3–19, 1996.
Prior, D. J. and Wheeler, J.: Feldspar fabrics in a greenschist facies albite-rich mylonite from electron bacscatter diffraction, Tectonophysics, 303, 24–49, 1999.
Prior, D. J., Mariani, E., and Wheeler, J.: EBSD in the Earth Sciences: Applications, Common Practice, and Challenges, in: Electron Backscatter Diffraction in Materials Science, Schwarz, A. J., Kumar, M. Adams, B. L., and Field, D. P., Springer US, Boston, MA, 345–360, 2009.
Robinson, P. T., Von Herzen, R., and the Shipboard Scientific Party: Proc. ODP, Init. Repts. 118: College Station, TX (Ocean Drilling Program), 1989.
Rosenberg, C. L. and Stünitz, H.: Deformation and recrystallization of plagioclase along a temperature gradient: an example from the Bergell tonalite, J. Struct. Geol., 25, 389–408, 2003.
Schaeben, H.: The de la Vallée Poussin standard orientation density function, Texture. Microstruct., 33, 365–373, 1999.
Schouten, H., Smith, D. K., Montési, L. G. J., Zhu, W., and Klein, E. M.: Cracking of lithosphere north of the Galapagos triple junction, Geology, 36, 339, https://doi.org/10.1130/G24431A.1, 2008.
Seront, B., Mainprice, D., and Christensen, N. I.: A determination of the three-dimensional seismic properties of anorthosite: comparison between values calculated from the petrofabric and direct laboratory measurements, J. Geophys. Res., 98, 2209–2221, 1993.
Smith, D. K., Schouten, H., Zhu, W.-L., Montési, L. G. J., and Cann, J. R.: Distributed deformation ahead of the Cocos-Nazca Rift at the Galapagos triple junction, Geochem. Geophy. Geosy., 12, Q11003. https://doi.org/10.1029/2011GC003689, 2011.
Stünitz, H., Fitz Gerald, J. D., and Tullis, J.: Dislocation generation, slip systems, and dynamic recrystallization in experimentally deformed plagioclase single crystals, Tectonophysics, 372, 215–233, 2003.
Svahnberg, H. and Piazolo, S.: The initiation of strain localisation in plagioclase-rich rocks: Insights from detailed microstructural analyses, J. Struct. Geol., 32, 1404–1416, 2010.
Tommasi, A., Mainprice, D., Canova, G., and Chastel, Y.: Viscoplastic self-consistent and equilibrium-based modeling of olivine lattice preferred orientations: Implications for the upper mantle seismic anisotropy, J. Geophys. Res., 105, 7893, https://doi.org/10.1029/1999JB900411, 2000.
Tommasi, A., Gilbert, B., Seipold, U., and Mainprice, D.: Anisotropy of thermal diffusivity in the upper mantle, Nature, 411, 783–786, 2001.
Tommasi, A., Godard, M., Coromina, G., Dautria, J. M., and Barsczus, H.: Seismic anisotropy and compositionally induced velocity anomalies in the lithosphere above mantle plumes: a petrological and microstructural study of mantle xenoliths from French Polynesia, Earth Planet. Sci. Lett., 227, 539–556, 2004.
Tommasi, A., Vauchez, A. and Ionov, D. A.: Deformation, static recrystallization, and reactive melt transport in shallow subcontinental mantle xenolith (Tok Cenozoic volcanic field, SE Siberia), Earth Planet. Sci. Lett., 272, 65–77, https://doi.org/10.1016/j.epsl.2008.04.020, 2008.
Ulrich, S. and Mainprice, D.: Does cation ordering in omphacite influence development of lattice-preferred orientation?, J. Struct. Geol., 27, 419–431, 2005.
Vollmer, F. W.: An application of eigenvalue methods to structural domain analysis, Geol. Soc. Am. Bull., 102, 786–791, 1990.
Wilson, D. S.: Fastest known spreading on the Miocene Cocos-Pacific plate boundary, Geophys. Res. Lett., 23, 3003–3006, 1996.
Wilson, D. S., Teagle, D. A. H., Alt, J. C., Banerjee, N. R., Umino, S., Miyashita, S., Acton, G. D., Anma, R., Barr, S. R., Belghoul, A., Carlut, J., Christie, D. M., Coggon, R. M., Cooper, K. M., Cordier, C., Crispini, L., Durand, S. R., Einaudi, F., Galli, L., Gao, Y., Geldmacher, J., Gilbert, A. L., Hayman, N. W., Herrero-Bervera, E., Hirano, N., Holter, S., Ingle, S., Jiang, S., Kalberkamp, U., Kerneklian, M., Koepke, J., Laverne, C., Vasquez, H. L., Maclennan, J., Morgan, S., Neo, N., Nichols, H. J., Park, S.-H., Reichow, N. K., Sakuyama, T., Sano, T., Sandwell, R., Scheibner, B., Smith-Duque, C. E., Swift, S. A., Tartarotti, P., Tikku, A. A., Tominaga, M., Veloso, E. A., Yamasaki, T., Yamazaki, S., and Ziegler, C.: Drilling to gabbro in intact ocean crust, Science, 312, 1016–1020, https://doi.org/10.1126/science.1126090, 2006.
Woodcock, N. H.: Specification of fabric shapes using an eigenvalue method, Geol. Soc. Am. Bull., 88, 1231–1236, 1977.
Yamazaki, S., Neo, N., and Miyashita, S.: whole-rock major and trace elements and mineral compositions of the sheeted dike-gabbro transition in ODP Hole 1256D, Proc. ODP, Init. Repts., 176, College Station, TX (Ocean Drilling Program), https://doi.org/10.2204/iodp.proc.309312.203.2009, 2009
Yaouancq, G. and Macleod, C. J.: Petrofabric Investigation of Gabbros from the Oman Ophiolite: Comparison between AMS and rock fabric, Mar. Geophys., 21, 189–305, 2000.
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