Articles | Volume 10, issue 4
https://doi.org/10.5194/se-10-1099-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-10-1099-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Jul 2019
Research article |
| 10 Jul 2019
| 10 Jul 2019
Lithosphere tearing along STEP faults and synkinematic formation of lherzolite and wehrlite in the shallow subcontinental mantle
Instituto Andaluz de Ciencias de la Tierra, CSIC & Universidad de
Granada, Av. de las Palmeras 4, 18100 Armilla, Granada, Spain
Departamento de Geodinámica, Facultad de Ciencias, Universidad de
Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain
Carlos J. Garrido
Instituto Andaluz de Ciencias de la Tierra, CSIC & Universidad de
Granada, Av. de las Palmeras 4, 18100 Armilla, Granada, Spain
Guillermo Booth-Rea
Departamento de Geodinámica, Facultad de Ciencias, Universidad de
Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain
Claudio Marchesi
Instituto Andaluz de Ciencias de la Tierra, CSIC & Universidad de
Granada, Av. de las Palmeras 4, 18100 Armilla, Granada, Spain
Departamento de Mineralogía y Petrología, Facultad de Ciencias,
Universidad de Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain
Jean-Louis Bodinier
Géosciences Montpellier, UMR 5243, CNRS & Université de
Montpellier, Place E. Bataillon, 34095 Montpellier, France
Jean-Marie Dautria
Géosciences Montpellier, UMR 5243, CNRS & Université de
Montpellier, Place E. Bataillon, 34095 Montpellier, France
Amina Louni-Hacini
Faculté des Sciences de la Terre, de Géographie et de
l'Aménagement du Territoire – Université des Sciences et de la
Technologie Houari Boumédiène – Laboratoire de Métallogénie
et Magmatisme de l'Algérie, 32, El Alia, 16111, Bab Ezzouar, Algiers,
Algeria
Abla Azzouni-Sekkal
Faculté des Sciences de la Terre, de Géographie et de
l'Aménagement du Territoire – Université des Sciences et de la
Technologie Houari Boumédiène – Laboratoire de Métallogénie
et Magmatisme de l'Algérie, 32, El Alia, 16111, Bab Ezzouar, Algiers,
Algeria
Faculté des Sciences de la Nature et de la Vie et des Sciences de la
Terre et de l'Univers, Université Abou Bekr Belkaïd, BP 119,
13000, Tlemcen, Algeria
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José M. González-Jiménez, Idael F. Blanco-Quintero, Lola Yesares, Claudio Marchesi, Amira R. Ferreira, Igor González-Pérez, Erwin Schettino, Francisco Abel Jiménez Cantizano, and Fernando Gervilla
Eur. J. Mineral., 37, 191–220, https://doi.org/10.5194/ejm-37-191-2025, https://doi.org/10.5194/ejm-37-191-2025, 2025
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More than 2000 outcrops of igneous mafic rocks with ages spanning the Triassic to Cretaceous are widespread in the internal and external zones of the Betic Cordillera. This magmatism originated by continental rifting is of great interest as a potential resource for Ni, Cu and Co. However, to date, the sulfide mineralogy of these metals is still unknown.
Related subject area
Subject area: Tectonic plate interactions, magma genesis, and lithosphere deformation at all scales | Editorial team: Structural geology and tectonics, paleoseismology, rock physics, experimental deformation | Discipline: Tectonics
Switching extensional and contractional tectonics in the West Kunlun Mountains during the Jurassic period: responses to the Neo-Tethyan geodynamics along the Eurasian margin
Influence of lateral heterogeneities on strike-slip fault behaviour: insights from analogue models
Importance of basement faulting and salt decoupling for the structural evolution of the Fars Arc (Zagros fold-and-thrust belt): a numerical modeling approach
On the role of trans-lithospheric faults in the long-term seismotectonic segmentation of active margins: a case study in the Andes
Along-strike variation in volcanic addition controlling post-breakup sedimentary infill: Pelotas margin, austral South Atlantic
Stress state at faults: the influence of rock stiffness contrast, stress orientation, and ratio
Interseismic and long-term deformation of southeastern Sicily driven by the Ionian slab roll-back
Rift and plume: a discussion on active and passive rifting mechanisms in the Afro-Arabian rift based on synthesis of geophysical data
Propagating rifts: the roles of crustal damage and ascending mantle fluids
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
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
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
Control of crustal strength, tectonic inheritance, and stretching/ shortening rates on crustal deformation and basin reactivation: insights from laboratory models
Late Cretaceous–early Palaeogene inversion-related tectonic structures at the northeastern margin of the Bohemian Massif (southwestern Poland and northern Czechia)
The analysis of slip tendency of major tectonic faults in Germany
Earthquake ruptures and topography of the Chilean margin controlled by plate interface deformation
Late Quaternary faulting in the southern Matese (Italy): implications for earthquake potential and slip rate variability in the southern Apennines
Rare earth elements associated with carbonatite–alkaline complexes in western Rajasthan, India: exploration targeting at regional scale
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
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
Insights from elastic thermobarometry into exhumation of high-pressure metamorphic rocks from Syros, Greece
Stress rotation – impact and interaction of rock stiffness and faults
Late Cretaceous to Paleogene exhumation in central Europe – localized inversion vs. large-scale domal uplift
Kinematics and extent of the Piemont–Liguria Basin – implications for subduction processes in the Alps
Effects of basal drag on subduction dynamics from 2D numerical models
Hydrocarbon accumulation in basins with multiple phases of extension and inversion: examples from the Western Desert (Egypt) and the western Black Sea
Long-wavelength late-Miocene thrusting in the north Alpine foreland: implications for late orogenic processes
Hong-Xiang Wu, Han-Lin Chen, Andrew V. Zuza, Yildirim Dilek, Du-Wei Qiu, Qi-Ye Lu, Feng-Qi Zhang, Xiao-Gan Cheng, and Xiu-Bin Lin
Solid Earth, 16, 155–177, https://doi.org/10.5194/se-16-155-2025, https://doi.org/10.5194/se-16-155-2025, 2025
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The Tethyan orogenic belt records an extensive history of subduction along the southern margin of Eurasia. We examine the magmatism, stratigraphy, and sedimentary provenance of the Jurassic basin in the West Kunlun Mountains, highlighting the switching extensional and contractional tectonic episodes in central Asia. The complex evolution was related to the subduction of the Neo-Tethys Ocean, transitioning from southward retreat to northward flat-slab advancement.
Sandra González-Muñoz, Guido Schreurs, Timothy C. Schmid, and Fidel Martín-González
Solid Earth, 15, 1509–1523, https://doi.org/10.5194/se-15-1509-2024, https://doi.org/10.5194/se-15-1509-2024, 2024
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This work investigates how strike-slip faults propagate across domains with lateral contrasting brittle strength using analogue models. The introduction of brittle vertical domains was achieved using quartz microbead sand. The reference vertical domains influence synthetic fault propagation, segmentation, and linkage, as well as the antithetic faults which rotate about a vertical axis due to the applied simple shear. The results aligned with the faults in the NW of the Iberian Peninsula.
Fatemeh Gomar, Jonas B. Ruh, Mahdi Najafi, and Farhad Sobouti
Solid Earth, 15, 1479–1507, https://doi.org/10.5194/se-15-1479-2024, https://doi.org/10.5194/se-15-1479-2024, 2024
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Our study investigates the structural evolution of the Fars Arc in the Zagros Mountains through numerical modeling. We focus on the effects of the interaction between basement faults and salt décollement levels during tectonic inversion, including a rifting and a convergence phase. In conclusion, our results emphasize the importance of considering fault geometry, salt rheology, and basement involvement in understanding the resistance to deformation and the seismic behavior of fold–thrust belts.
Gonzalo Yanez C., Jose Piquer R., and Orlando Rivera H.
Solid Earth, 15, 1319–1342, https://doi.org/10.5194/se-15-1319-2024, https://doi.org/10.5194/se-15-1319-2024, 2024
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We postulate that the observed spatial distribution of large earthquakes in active convergence zones, organised in segments where large events are repeated every 100–300 years, depends on large-scale continental faults and fluid release from the subducting slab. In order to support this model, we use proxies at different spatial and temporal scales (historic seismicity, megathrust slip solutions, inter-seismic cumulative seismicity, GPS/viscous plate coupling, and coastline morphology).
Marlise C. Cassel, Nick Kusznir, Gianreto Manatschal, and Daniel Sauter
Solid Earth, 15, 1265–1279, https://doi.org/10.5194/se-15-1265-2024, https://doi.org/10.5194/se-15-1265-2024, 2024
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We investigate the along-strike variation in volcanics on the Pelotas segment of the Brazilian margin created during continental breakup and formation of the southern South Atlantic. We show that the volume of volcanics strongly controls the amount of space available for post-breakup sedimentation. We also show that breakup varies along-strike from very magma-rich to magma-normal within a relatively short distance of less than 300 km. This is not as expected from a simple mantle plume model.
Moritz O. Ziegler, Robin Seithel, Thomas Niederhuber, Oliver Heidbach, Thomas Kohl, Birgit Müller, Mojtaba Rajabi, Karsten Reiter, and Luisa Röckel
Solid Earth, 15, 1047–1063, https://doi.org/10.5194/se-15-1047-2024, https://doi.org/10.5194/se-15-1047-2024, 2024
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The rotation of the principal stress axes in a fault structure because of a rock stiffness contrast has been investigated for the impact of the ratio of principal stresses, the angle between principal stress axes and fault strike, and the ratio of the rock stiffness contrast. A generic 2D geomechanical model is employed for the systematic investigation of the parameter space.
Amélie Viger, Stéphane Dominguez, Stéphane Mazzotti, Michel Peyret, Maxime Henriquet, Giovanni Barreca, Carmelo Monaco, and Adrien Damon
Solid Earth, 15, 965–988, https://doi.org/10.5194/se-15-965-2024, https://doi.org/10.5194/se-15-965-2024, 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 show that the 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 that is mainly driven by the southward migration of the Ionian slab roll-back.
Ran Issachar, Peter Haas, Nico Augustin, and Jörg Ebbing
Solid Earth, 15, 807–826, https://doi.org/10.5194/se-15-807-2024, https://doi.org/10.5194/se-15-807-2024, 2024
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In this contribution, 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 using geophysical data and reviewed the available geological data. We interpret 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.
Folarin Kolawole and Rasheed Ajala
Solid Earth, 15, 747–762, https://doi.org/10.5194/se-15-747-2024, https://doi.org/10.5194/se-15-747-2024, 2024
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We investigate the upper-crustal structure of the Rukwa–Tanganyika rift zone in East Africa, where the Tanganyika rift interacts with the Rukwa and Mweru-Wantipa rifts, coinciding with abundant seismicity at the rift tips. Seismic velocity structure and patterns of seismicity clustering reveal zones around 10 km deep with anomalously high Vp / Vs ratios at the rift tips, indicative of a localized mechanically weakened crust caused by mantle volatiles and damage associated with bending strain.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Karsten Reiter
Solid Earth, 12, 1287–1307, https://doi.org/10.5194/se-12-1287-2021, https://doi.org/10.5194/se-12-1287-2021, 2021
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The influence and interaction of elastic material properties (Young's modulus, Poisson's ratio), density and low-friction faults on the resulting far-field stress pattern in the Earth's crust is tested with generic models. A Young's modulus contrast can lead to a significant stress rotation. Discontinuities with low friction in homogeneous models change the stress pattern only slightly, away from the fault. In addition, active discontinuities are able to compensate stress rotation.
Hilmar von Eynatten, Jonas Kley, István Dunkl, Veit-Enno Hoffmann, and Annemarie Simon
Solid Earth, 12, 935–958, https://doi.org/10.5194/se-12-935-2021, https://doi.org/10.5194/se-12-935-2021, 2021
Eline Le Breton, Sascha Brune, Kamil Ustaszewski, Sabin Zahirovic, Maria Seton, and R. Dietmar Müller
Solid Earth, 12, 885–913, https://doi.org/10.5194/se-12-885-2021, https://doi.org/10.5194/se-12-885-2021, 2021
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The former Piemont–Liguria Ocean, which separated Europe from Africa–Adria in the Jurassic, opened as an arm of the central Atlantic. Using plate reconstructions and geodynamic modeling, we show that the ocean reached only 250 km width between Europe and Adria. Moreover, at least 65 % of the lithosphere subducted into the mantle and/or incorporated into the Alps during convergence in Cretaceous and Cenozoic times comprised highly thinned continental crust, while only 35 % was truly oceanic.
Lior Suchoy, Saskia Goes, Benjamin Maunder, Fanny Garel, and Rhodri Davies
Solid Earth, 12, 79–93, https://doi.org/10.5194/se-12-79-2021, https://doi.org/10.5194/se-12-79-2021, 2021
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We use 2D numerical models to highlight the role of basal drag in subduction force balance. We show that basal drag can significantly affect velocities and evolution in our simulations and suggest an explanation as to why there are no trends in plate velocities with age in the Cenozoic subduction record (which we extracted from recent reconstruction using GPlates). The insights into the role of basal drag will help set up global models of plate dynamics or specific regional subduction models.
William Bosworth and Gábor Tari
Solid Earth, 12, 59–77, https://doi.org/10.5194/se-12-59-2021, https://doi.org/10.5194/se-12-59-2021, 2021
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Many of the world's hydrocarbon resources are found in rifted sedimentary basins. Some rifts experience multiple phases of extension and inversion. This results in complicated oil and gas generation, migration, and entrapment histories. We present examples of basins in the Western Desert of Egypt and the western Black Sea that were inverted multiple times, sometimes separated by additional phases of extension. We then discuss how these complex deformation histories impact exploration campaigns.
Samuel Mock, Christoph von Hagke, Fritz Schlunegger, István Dunkl, and Marco Herwegh
Solid Earth, 11, 1823–1847, https://doi.org/10.5194/se-11-1823-2020, https://doi.org/10.5194/se-11-1823-2020, 2020
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Based on thermochronological data, we infer thrusting along-strike the northern rim of the Central Alps between 12–4 Ma. While the lithology influences the pattern of thrusting at the local scale, we observe that thrusting in the foreland is a long-wavelength feature occurring between Lake Geneva and Salzburg. This coincides with the geometry and dynamics of the attached lithospheric slab at depth. Thus, thrusting in the foreland is at least partly linked to changes in slab dynamics.
Cited articles
Abbassene, F., Chazot, G., Bellon, H., Bruguier, O., Ouabadi, A., Maury, R.
C., Déverchére, J., Bosch, D., and Monié, P.: A 17 Ma onset for
the post-collisional K-rich calc-alkaline magmatism in the Maghrebides:
Evidence from Bougaroun (northeastern Algeria) and geodynamic implications,
Tectonophysics, 674, 114–134, https://doi.org/10.1016/j.tecto.2016.02.013,
2016.
Arai, S.: Characterization of spinel peridotites by olivine-spinel
compositional relationships: Review and interpretation, Chem. Geol.,
113, 191–204, https://doi.org/10.1016/0009-2541(94)90066-3,
1994.
Asimow, P. D. and Stolper, E. M.: Steady-state mantle-melt interactions in
one dimension, I, Equilibrium transport and melt focusing, J.
Petrol., 40, 475–494, 1999.
Azdimousa, A., Jabaloy-Sánchez, A., Münch, P.,
Martínez-Martínez, J. M., Booth-Rea, G., Vázquez-Vílchez,
M., Asebriy, L., Bourgois, J., and González-Lodeiro, F.: Structure and
exhumation of the Cap des Trois Fourches basement rocks (Eastern Rif,
Morocco), J. Afr. Earth Sci., 150, 657–672,
https://doi.org/10.1016/j.jafrearsci.2018.09.018, 2019.
Bachmann, F., Hielscher, R., and Schaeben, H.: Texture analysis with MTEX –
free and open source software toolbox, Sol. St. Phen., 160, 63–68,
2010.
Bendoukha, R., M'hamed, M., Cottin, J.-Y., and Tebeliouna, M.: Nouvelles
données sur les caractères dynamiques et géochimiques du
volcanisme alcalin Mio-Plio-Quaternaire de L'Oranie (Algérie
Nord-Occidentale), Bulletin du Service Géologique de l'Algérie, 20,
263–296, 2009.
Bezada, M. J., Humphreys, E. D., Toomey, D. R., Harnafi, M., Dávila, J.
M., and Gallart, J.: Evidence for slab rollback in westernmost Mediterranean
from improved upper mantle imaging, Earth Planet. Sc. Lett.,
368, 51–60, https://doi.org/10.1016/j.epsl.2013.02.024, 2013.
Bodinier, J. L., Vasseur, G., Vernieres, J., Dupuy, C., and Fabries, J.:
Mechanisms of mantle metasomatism: Geochemical evidence from the Lherz
orogenic peridotite, J. Petrol., 31, 597–628,
https://doi.org/10.1093/petrology/31.3.597, 1990.
Bodinier, J. L. and Godard, M.: 3.4 – Orogenic, Ophiolitic, and Abyssal
Peridotites, in: Treatise on Geochemistry (Second Edition), edited by:
Turekian, H. D. H. K., Elsevier, Oxford, 103–167, 2014.
Booth-Rea, G., Ranero, C. R., Martinez-Martinez, J. M., and Grevemeyer, I.:
Crustal types and Tertiary tectonic evolution of the Alboran sea, western
Mediterranean, Geochem. Geophy. Geosy., 8, Q10005
https://doi.org/10.1029/2007gc001639, 2007.
Booth-Rea, G., Jabaloy-Sanchez, A., Azdimousa, A., Asebriy, L., Vilchez, M.
V., and Martínez-Martínez, J. M.: Upper-crustal extension during
oblique collision: the Temsamane extensional detachment (eastern Rif,
Morocco), Terra Nova, 24, 505–512, https://doi.org/10.1111/j.1365-3121.2012.01089.x, 2012.
Booth-Rea, G., Gaidi, S., Melki, F., Marzougui, W., Azañón, J. M.,
Zargouni, F., Galvé, J. P., and Pérez-Peña, J. V.: Late Miocene
Extensional Collapse of Northern Tunisia, Tectonics, 37, 1626–1647,
https://doi.org/10.1029/2017TC004846, 2018a.
Booth-Rea, G., R. Ranero, C., and Grevemeyer, I.: The Alboran volcanic-arc
modulated the Messinian faunal exchange and salinity crisis, Sci.
Rep., 8, 13015, https://doi.org/10.1038/s41598-018-31307-7, 2018b.
Borghini, G., Fumagalli, P., and Rampone, E.: The Stability of Plagioclase
in the Upper Mantle: Subsolidus Experiments on Fertile and Depleted
Lherzolite, J. Petrol., 51, 229–254, https://doi.org/10.1093/petrology/egp079,
2010.
Brey, G. P. and Köhler, T.: Geothermobarometry in four-phase
lherzolites, II, New thermobarometers, and practical assessment of existing
thermobarometers, J. Petrol., 31, 1353–1378, 1990.
Carter, N. and Avé Lallemant, H.: High temperature flow of dunite and
peridotite, Bull. Geol. Soc. Am., 81, 2181–2202,
1970.
Chatzaras, V., Kruckenberg, S. C., Cohen, S. M., Medaris, L. G., Withers, A.
C., and Bagley, B.: Axial-type olivine crystallographic preferred
orientations: The effect of strain geometry on mantle texture, J.
Geophys. Res.-Sol. Ea., 121, 4895–4922, https://doi.org/10.1002/2015JB012628, 2016.
Chazot, G., Abbassene, F., Maury, R. C., Déverchère, J., Bellon, H.,
Ouabadi, A., and Bosch, D.: An overview on the origin of post-collisional
Miocene magmatism in the Kabylies (northern Algeria): Evidence for crustal
stacking, delamination and slab detachment, J. Afr. Earth
Sci., 125, 27–41,
https://doi.org/10.1016/j.jafrearsci.2016.10.005, 2017.
Chertova, M. V., Spakman, W., Geenen, T., van den Berg, A. P., and van
Hinsbergen, D. J. J.: Underpinning tectonic reconstructions of the western
Mediterranean region with dynamic slab evolution from 3-D numerical
modeling, J. Geophys. Res.-Sol. Ea., 119, 2014JB011150,
https://doi.org/10.1002/2014JB011150, 2014a.
Chertova, M. V., Spakman, W., van den Berg, A. P., and van Hinsbergen, D. J.
J.: Absolute plate motions and regional subduction evolution, Geochem.
Geophy. Geosy., 15, 3780–3792, https://doi.org/10.1002/2014GC005494, 2014b.
Comas, M. C., Platt, J. P., Soto, J. I., and Watts, A. B.: The origin and
tectonic history of the Alboran Basin: Insights from Leg 161 results, in:
Proceedings of the Ocean Drilling Program, Scientific Results, edited by:
Zahn, R., Comas, M. C., and Klaus, A., College Station, TX, 555–580, 1999.
Coulon, C., Megartsi, M. H., Fourcade, S., Maury, R. C., Bellon, H.,
Louni-Hacini, A., Cotten, J., Coutelle, A., and Hermitte, D.:
Post-collisional transition from calc-alkaline to alkaline volcanism during
the Neogene in Oranie (Algeria): magmatic expression of a slab breakoff,
Lithos, 62, 87–110,
https://doi.org/10.1016/S0024-4937(02)00109-3, 2002.
De Bresser, J. H. P., Ter Heege, J. H., and Spiers, C. J.: Grain size
reduction by dynamic recrystallization: can it result in major rheological
weakening?, Int. J. Earth Sci., 90, 28–45, 2001.
de Kloe, R.: Deformation mechanisms and melt nano-structures in
experimentally deformed olivine-orthopyroxene rocks with low melt fractions
– An electron microscopy study, PhD, Universiteit Utrecht, 176 pp., 2001.
Demouchy, S., Mussi, A., Barou, F., Tommasi, A., and Cordier, P.:
Viscoplasticity of polycrystalline olivine experimentally deformed at high
pressure and 900 ∘C, Tectonophysics, 623, 123–135,
https://doi.org/10.1016/j.tecto.2014.03.022, 2014.
Diaz, J., Gallart, J., Villaseñor, A., Mancilla, F., Pazos, A.,
Córdoba, D., Pulgar, J. A., Ibarra, P., and Harnafi, M.: Mantle dynamics
beneath the Gibraltar Arc (western Mediterranean) from shear-wave splitting
measurements on a dense seismic array, Geophys. Res. Lett., 37,
L18304, https://doi.org/10.1029/2010GL044201, 2010.
Dijkstra, A. H., Drury, M. R., Vissers, R. L. M., and Newman, J.: 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.
Downes, H.: Shear zones in the upper mantle – Relation between geochemical
enrichment and deformation in mantle peridotites, Geology, 18, 374–377,
1990.
Drury, M. R., Vissers, R. L. M., Wal, D. V. D., and Strating, E. H. H.:
Shear localisation in upper mantle peridotites, Pure Appl. Geophys.,
137, 439–460, https://doi.org/10.1007/BF00879044, 1991.
Duggen, S., Hoernle, K., van den Bogaard, P., Rupke, L., and Morgan, J. P.:
Deep roots of the Messinian salinity crisis, Nature, 422, 602–606, 2003.
Duggen, S., Hoernle, K., van den Bogaard, P., and Harris, C.: Magmatic
evolution of the Alboran region: The role of subduction in forming the
western Mediterranean and causing the Messinian Salinity Crisis, Earth
Planet. Sc. Lett., 218, 91–108, https://doi.org/10.1016/s0012-821x(03)00632-0, 2004.
Duggen, S., Hoernle, K., Van den Bogaard, P., and Garbe-Schonberg, D.:
Post-collisional transition from subduction- to intraplate-type magmatism in
the westernmost Mediterranean: Evidence for continental-edge delamination of
subcontinental lithosphere, J. Petrol., 46, 1155–1201,
https://doi.org/10.1093/petrology/egi013, 2005.
Duggen, S., Hoernle, K., Kluegel, A., Geldmacher, J., Thirlwall, M., Hauff,
F., Lowry, D., and Oates, N.: Geochemical zonation of the Miocene
Alborán Basin volcanism (westernmost Mediterranean): geodynamic
implications, Contrib. Mineral. Petr., 156, 577–593,
https://doi.org/10.1007/s00410-008-0302-4, 2008.
Duggen, S., Hoernle, K. A., Hauff, F., Klugel, A., Bouabdellah, M., and
Thirlwall, M. F.: Flow of Canary mantle plume material through a
subcontinental lithospheric corridor beneath Africa to the Mediterranean,
Geology, 37, 283–286, https://doi.org/10.1130/g25426a.1, 2009.
Durham, W. B. and Goetze, C.: Plastic flow of oriented single crystals of
olivine: 1. Mechanical data, J. Geophys. Res., 82, 5737–5753,
https://doi.org/10.1029/JB082i036p05737, 1977.
Faccenna, C., Piromallo, C., Crespo-Blanc, A., Jolivet, L., and Rossetti,
F.: Lateral slab deformation and the origin of the western Mediterranean
arcs, Tectonics, 23, Tc1012
https://doi.org/10.1029/2002tc001488, 2004.
Faccenna, C., Becker, T. W., Auer, L., Billi, A., Boschi, L., Brun, J. P.,
Capitanio, F. A., Funiciello, F., Horvàth, F., Jolivet, L., Piromallo,
C., Royden, L., Rossetti, F., and Serpelloni, E.: Mantle dynamics in the
Mediterranean, Rev. Geophys., 52, 283–332, https://doi.org/10.1002/2013RG000444,
2014.
Gaetani, G. A. and Watson, E. B.: Modeling the major-element evolution of
olivine-hosted melt inclusions, Chem. Geol., 183, 25–41, 2002.
Garcia-Castellanos, D. and Villasenor, A.: Messinian salinity crisis
regulated by competing tectonics and erosion at the Gibraltar arc, Nature,
480, 359-U108, https://doi.org/10.1038/nature10651, 2011.
Giaconia, F., Booth-Rea, G., Martínez-Martínez, J. M.,
Azañón, J. M., Storti, F., and Artoni, A.: Heterogeneous extension
and the role of transfer faults in the development of the southeastern Betic
basins (SE Spain), Tectonics, 33, 2467–2489, https://doi.org/10.1002/2014TC003681, 2014.
Gómez de la Peña, L., Ranero, C. R., and Gràcia, E.: The Crustal
Domains of the Alboran Basin (Western Mediterranean), Tectonics, 37,
3352–3377, https://doi.org/10.1029/2017TC004946, 2018.
Govers, R. and Wortel, M. J. R.: Lithosphere tearing at STEP faults:
Response to edges of subduction zones, Earth Planet. Sc. Lett.,
236, 505–523, https://doi.org/10.1016/j.epsl.2005.03.022, 2005.
Gutscher, M. A., Malod, J., Rehault, J. P., Contrucci, I., Klingelhoefer,
F., Mendes-Victor, L., and Spakman, W.: Evidence for active subduction
beneath Gibraltar, Geology, 30, 1071–1074,
https://doi.org/10.1130/0091-7613(2002)030<1071:efasbg>2.0.co;2, 2002.
Gutscher, M. A., Dominguez, S., Westbrook, G. K., Le Roy, P., Rosas, F.,
Duarte, J. C., Terrinha, P., Miranda, J. M., Graindorge, D., Gailler, A.,
Sallares, V., and Bartolome, R.: The Gibraltar subduction: A decade of new
geophysical data, Tectonophysics, 574–575, 72–91,
https://doi.org/10.1016/j.tecto.2012.08.038, 2012.
Hansen, L. N. and Warren, J. M.: Quantifying the effect of pyroxene on
deformation of peridotite in a natural shear zone, J. Geophys.
Res.-Sol. Ea., 120, 2014JB011584, https://doi.org/10.1002/2014JB011584, 2015.
Herwegh, M., Linckens, J., Ebert, A., Berger, A., and Brodhag, S. H.: The
role of second phases for controlling microstructural evolution in
polymineralic rocks: A review, J. Struct. Geol., 33, 1728–1750,
https://doi.org/10.1016/j.jsg.2011.08.011, 2011.
Hidas, K., Konc, Z., Garrido, C. J., Tommasi, A., Vauchez, A.,
Padrón-Navarta, J. A., Marchesi, C., Booth-Rea, G., Acosta-Vigil, A.,
Szabó, C., Varas-Reus, M. I., and Gervilla, F.: Flow in the western
Mediterranean shallow mantle: Insights from xenoliths in Pliocene alkali
basalts from SE Iberia (eastern Betics, Spain), Tectonics, 35, 2657–2676,
https://doi.org/10.1002/2016TC004165, 2016a.
Hidas, K., Tommasi, A., Garrido, C. J., Padrón-Navarta, J. A.,
Mainprice, D., Vauchez, A., Barou, F., and Marchesi, C.: Fluid-assisted
strain localization in the shallow subcontinental lithospheric mantle,
Lithos, 262, 636–650, https://doi.org/10.1016/j.lithos.2016.07.038, 2016b.
Hielscher, R. and Schaeben, H.: A novel pole figure inversion method:
specification of the MTEX algorithm, J. Appl. Crystallogr., 41,
1024–1037, https://doi.org/10.1107/S0021889808030112, 2008.
Higgie, K. and Tommasi, A.: Feedbacks between deformation and melt
distribution in the crust-mantle transition zone of the Oman ophiolite,
Earth Planet. Sc. Lett., 359, 61–72, https://doi.org/10.1016/j.epsl.2012.10.003,
2012.
Higgie, K. and Tommasi, A.: Deformation in a partially molten mantle:
Constraints from plagioclase lherzolites from Lanzo, western Alps,
Tectonophysics, 615, 167–181, https://doi.org/10.1016/j.tecto.2014.01.007, 2014.
Hoernle, K., Van den Bogaard, P., Duggen, S., Mocek, B., and
Garbe-Schonberg, D.: Evidence for Miocene subduction beneath the Alboran
Sea: 40Ar∕39Ar dating and geochemistry of volcanic rocks from
holes 977A and 978A, in: Proceedings of the Ocean Drilling Program,
Scientific Results, edited by: Zahn, R., Comas, M. C., and Klaus, A., Ocean
Drilling Program, Texas A&M University, USA, 357–373, 1999.
Holtzman, B. K., Kohlstedt, D. L., Zimmerman, M. E., Heidelbach, F., Hiraga,
T., and Hustoft, J.: Melt segregation and strain partitioning: Implications
for seismic anisotropy and mantle flow, Science, 301, 1227–1230,
https://doi.org/10.1126/science.1087132, 2003.
Ionov, D., A., Chanefo, I., and Bodinier, J.-L.: Origin of Fe-rich
lherzolites and wehrlites from Tok, SE Siberia by reactive melt percolation
in refractory mantle peridotites, Contrib. Mineral. Petr.,
150, 335–353, 2005.
Jabaloy-Sánchez, A., Azdimousa, A., Booth-Rea, G., Asebriy, L.,
Vázquez-Vílchez, M., Martínez-Martínez, J. M., and
Gabites, J.: The structure of the Temsamane fold-and-thrust stack (eastern
Rif, Morocco): Evolution of a transpressional orogenic wedge,
Tectonophysics, 663, 150–176,
https://doi.org/10.1016/j.tecto.2015.02.003, 2015.
Jolivet, L. and Faccenna, C.: Mediterranean extension and the
Africa-Eurasia collision, Tectonics, 19, 1095–1106, https://doi.org/10.1029/2000tc900018,
2000.
Jung, H., Park, M., Jung, S., and Lee, J.: Lattice preferred orientation,
water content, and seismic anisotropy of orthopyroxene, J. Earth Sci., 21,
555–568, https://doi.org/10.1007/s12583-010-0118-9, 2010.
Karato, S.-I.: Deformation of Earth materials: An introduction to the
rheology of solid Earth, Cambridge University Press, Cambridge, New York,
463 pp., 2008.
Katayama, I., Jung, H., and Karato, S.-I.: New type of olivine fabric from
deformation experiments at modest water content and low stress, Geology, 32,
1045, https://doi.org/10.1130/g20805.1, 2004.
Kelemen, P. B. and Dick, H. J. B.: Focused melt flow and localized
deformation in the upper mantle – Juxtaposition of replacive dunite and
ductile shear zones in the Josephine Peridotite, SW Oregon, J.
Geophys. Res.-Sol. Ea., 100, 423–438, 1995.
Kourim, F., Vauchez, A., Bodinier, J.-L., Alard, O., and Bendaoud, A.:
Subcontinental lithosphere reactivation beneath the Hoggar swell (Algeria):
Localized deformation, melt channeling and heat advection, Tectonophysics,
650, 18–33, https://doi.org/10.1016/j.tecto.2014.11.012, 2015.
Kruckenberg, S. C., Tikoff, B., Toy, V. G., Newman, J., and Young, L. I.:
Strain localization associated with channelized melt migration in upper
mantle lithosphere: Insights from the Twin Sisters ultramafic complex,
Washington, USA, J. Struct. Geol., 50, 133–147,
https://doi.org/10.1016/j.jsg.2012.10.009, 2013.
Lahmer, M. C., Seddiki, A., Zerka, M., Cottin, J.-Y., and Tabeliouna, M.:
Metasomatism and origin of glass in the lithospheric mantle xenoliths
beneath Ain Temouchent area (North-West Algeria), Arab. J.
Geosci., 11, 332, https://doi.org/10.1007/s12517-018-3684-2, 2018.
Lambart, S., Laporte, D., Provost, A., and Schiano, P.: Fate of
Pyroxenite-derived Melts in the Peridotitic Mantle: Thermodynamic and
Experimental Constraints, J. Petrol., 53, 451–476,
https://doi.org/10.1093/petrology/egr068, 2012.
Le Roux, V., Tommasi, A., and Vauchez, A.: Feedback between melt percolation
and deformation in an exhumed lithosphere-asthenosphere boundary, Earth
Planet. Sc. Lett., 274, 401–413, https://doi.org/10.1016/j.epsl.2008.07.053, 2008.
Linckens, J.: Microfabric evolution and strain localization in the naturally
deformed mantle rocks, PhD, University of Bern, 160 pp., 2010.
Linckens, J., Herwegh, M., and Müntener, O.: Linking temperature
estimates and microstructures in deformed polymineralic mantle rocks,
Geochem. Geophy., Geosy. 12, Q08004, https://doi.org/10.1029/2011GC003536,
2011a.
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.-Sol. Ea.,
116, B06210, https://doi.org/10.1029/2010JB008119, 2011b.
Lonergan, L. and White, N.: Origin of the Betic-Rif mountain belt,
Tectonics, 16, 504–522, https://doi.org/10.1029/96tc03937, 1997.
Louni-Hacini, A., Bellon, H., Maury, R. C., Megartsi, M., Coulon, C.,
Semroud, B., Cotten, J., and Coutelle, A.: K40−Ar40 dating of the
late Miocene transition from calc-alkaline to alkali basalt series,
northwestern Algeria, Comptes Rendus De L'Academie Des Sciences Serie Ii
Fascicule a – Sciences De La Terre Et Des Planetes, 321, 975–982, 1995.
Mainprice, D., Tommasi, A., Couvy, H., Cordier, P., and Frost, D. J.:
Pressure sensitivity of olivine slip systems and seismic anisotropy of
Earth's upper mantle, Nature, 433, 731–733, 2005.
Mainprice, D., Bachmann, F., Hielscher, R., and Schaeben, H.: Descriptive
tools for the analysis of texture projects with large datasets using MTEX:
strength, symmetry and components, Geological Society, London, Special
Publications, 409, https://doi.org/10.1144/sp409.8, 2014.
Mancilla, F. D. L., Booth-Rea, G., Stich, D., Pérez-Peña, J. V.,
Morales, J., Azañón, J. M., Martin, R., and Giaconia, F.: Slab
rupture and delamination under the Betics and Rif constrained from receiver
functions, Tectonophysics, 663, 225–237,
https://doi.org/10.1016/j.tecto.2015.06.028, 2015.
Mancilla, F. D. L., Heit, B., Morales, J., Yuan, X., Stich, D.,
Molina-Aguilera, A., Azañon, J. M., and Martín, R.: A STEP fault in
Central Betics, associated with lateral lithospheric tearing at the northern
edge of the Gibraltar arc subduction system, Earth Planet. Sc.
Lett., 486, 32–40,
https://doi.org/10.1016/j.epsl.2018.01.008, 2018.
Marchesi, C., Konc, Z., Garrido, C. J., Bosch, D., Hidas, K., Varas-Reus, M.
I., and Acosta-Vigil, A.: Multi-stage evolution of the lithospheric mantle
beneath the westernmost Mediterranean: Geochemical constraints from
peridotite xenoliths in the eastern Betic Cordillera (SE Spain), Lithos,
276, 75–89, https://doi.org/10.1016/j.lithos.2016.12.011, 2017.
Mauffret, A., Frizon de Lamotte, D., Lallemant, S., Gorini, C., and
Maillard, A.: E–W opening of the Algerian Basin (Western Mediterranean),
Terra Nova, 16, 257–264, https://doi.org/10.1111/j.1365-3121.2004.00559.x, 2004.
Maury, R. C., Fourcade, S., Coulon, C., El Azzouzi, M., Bellon, H.,
Coutelle, A., Ouabadi, A., Semroud, B., Megartsi, M., Cotten, J., Belanteur,
Q., Louni-Hacini, A., Pique, A., Capdevila, R., Hernandez, J., and Rehault,
J. P.: Post-collisional Neogene magmatism of the Mediterranean Maghreb
margin: a consequence of slab breakoff, Comptes Rendus Acad. Sci. Ser II-A,
331, 159–173, 2000.
McDonough, W. F. and Sun, S.-S.: The composition of the Earth, Chem.
Geol., 120, 223–253, 1995.
Medaouri, M., Déverchère, J., Graindorge, D., Bracene, R., Badji,
R., Ouabadi, A., Yelles-Chaouche, K., and Bendiab, F.: The transition from
Alboran to Algerian basins (Western Mediterranean Sea): Chronostratigraphy,
deep crustal structure and tectonic evolution at the rear of a narrow slab
rollback system, J. Geodynam., 77, 186–205,
https://doi.org/10.1016/j.jog.2014.01.003, 2014.
Menant, A., Sternai, P., Jolivet, L., Guillou-Frottier, L., and Gerya, T.:
3D numerical modeling of mantle flow, crustal dynamics and magma genesis
associated with slab roll-back and tearing: The eastern Mediterranean case,
Earth Planet. Sc. Lett., 442, 93–107,
https://doi.org/10.1016/j.epsl.2016.03.002, 2016.
Millen, D. W. and Hamburger, M. W.: Seismological evidence for tearing of
the Pacific plate at the northern termination of the Tonga subduction zone,
Geology, 26, 659–662, https://doi.org/10.1130/0091-7613(1998)026<0659:Seftot>2.3.Co;2, 1998.
Morales, L. F. G. and Tommasi, A.: Composition, textures, seismic and
thermal anisotropies of xenoliths from a thin and hot lithospheric mantle
(Summit Lake, southern Canadian Cordillera), Tectonophysics, 507, 1–15,
https://doi.org/10.1016/j.tecto.2011.04.014, 2011.
Newman, J., Lamb, W. M., Drury, M. R., and Vissers, R. L. M.: Deformation
processes in a peridotite shear zone: reaction-softening by an
H2O-deficient, continuous net transfer reaction, Tectonophysics, 303,
193–222, https://doi.org/10.1016/S0040-1951(98)00259-5, 1999.
Nicolas, A., Boudier, F., and Boullier, A. M.: Mechanisms of flow in
naturally and experimentally deformed peridotites, Am. J.
Sci., 273, 853–876, 1973.
Nijholt, N. and Govers, R.: The role of passive margins on the evolution of
Subduction-Transform Edge Propagators (STEPs), J. Geophys.
Res.-Sol. Ea., 120, 7203–7230, https://doi.org/10.1002/2015JB012202, 2015.
Nimis, P. and Grütter, H.: Internally consistent geothermometers for
garnet peridotites and pyroxenites, Contrib. Mineral.
Petr., 159, 411–427, https://doi.org/10.1007/s00410-009-0455-9, 2010.
Parkinson, I. J., Arculus, R. J., and Eggins, S. M.: Peridotite xenoliths
from Grenada, Lesser Antilles Island Arc, Contrib. Mineral.
Petr., 146, 241–262, https://doi.org/10.1007/s00410-003-0500-z, 2003.
Pearce, J. A., Barker, P. F., Edwards, S. J., Parkinson, I. J., and Leat, P.
T.: Geochemistry and tectonic significance of peridotites from the South
Sandwich arc–basin system, South Atlantic, Contrib. Mineral.
Petr., 139, 36–53, https://doi.org/10.1007/s004100050572, 2000.
Peslier, A. H., Francis, D., and Ludden, J.: The lithospheric mantle beneath
continental margins: Melting and melt-rock reaction in Canadian Cordillera
xenoliths, J. Petrol., 43, 2013–2047, 2002.
Phipps Morgan, J.: Melt migration beneath mid-ocean spreading centers,
Geophys. Res. Lett., 14, 1238–1241, https://doi.org/10.1029/GL014i012p01238,
1987.
Pichavant, M. and Macdonald, R.: Crystallization of primitive basaltic
magmas at crustal pressures and genesis of the calc-alkaline igneous suite:
experimental evidence from St Vincent, Lesser Antilles arc, Contrib.
Mineral. Petr., 154, 535–558, https://doi.org/10.1007/s00410-007-0208-6, 2007.
Platt, J. P., Behr, W. M., Johanesen, K., and Williams, J. R.: The Betic-Rif
Arc and Its Orogenic Hinterland: A Review, Ann. Rev. Earth
Planet. Sci., 41, 313–357, https://doi.org/10.1146/annurev-earth-050212-123951,
2013.
Precigout, J., Gueydan, F., Gapais, D., Garrido, C. J., and Essaifi, A.:
Strain localisation in the subcontinental mantle – a ductile alternative to
the brittle mantle, Tectonophysics, 445, 318–336,
https://doi.org/10.1016/j.tecto.2007.09.002, 2007.
Raffone, N., Chazot, G., Pin, C., Vannucci, R., and Zanetti, A.:
Metasomatism in the lithospheric mantle beneath middle Atlas (Morocco) and
the origin of Fe- and Mg-rich wehrlites, J. Petrol., 50, 197–249,
https://doi.org/10.1093/petrology/egn069, 2009.
Rampone, E., Piccardo, G. B., Vannucci, R., Bottazzi, P., and Ottolini, L.:
Subsolidus reactions monitored by trace-element partitioning - the
spinel-facies to plagioclase-facies transition in mantle peridotites,
Contrib. Mineral. Petr., 115, 1–17, 1993.
Rampone, E., Vissers, R. L. M., Poggio, M., Scambelluri, M., and Zanetti,
A.: Melt Migration and Intrusion during Exhumation of the Alboran
Lithosphere: the Tallante Mantle Xenolith Record (Betic Cordillera, SE
Spain), J. Petrol., 51, 295–325, https://doi.org/10.1093/petrology/egp061, 2010.
Rosenbaum, G., Lister, G. S., and Duboz, C.: Relative motions of Africa,
Iberia and Europe during Alpine orogeny, Tectonophysics, 359, 117–129,
https://doi.org/10.1016/s0040-1951(02)00442-0, 2002.
Roure, F., Casero, P., and Addoum, B.: Alpine inversion of the North African
margin and delamination of its continental lithosphere, Tectonics, 31,
TC3006, https://doi.org/10.1029/2011tc002989, 2012.
Royden, L. H.: Evolution of retreating subduction boundaries formed during
continental collision, Tectonics, 12, 629–638, 1993.
Shaw, C. S. J.: Dissolution of orthopyroxene in basanitic magma between 0.4
and 2 GPa: further implications for the origin of Si-rich alkaline glass
inclusions in mantle xenoliths, Contrib. Mineral. Petr.,
135, 114–132, 1999.
Shaw, C. S. J.: The temporal evolution of three magmatic systems in the West
Eifel volcanic field, Germany, J. Volcanol. Geoth. Res., 131, 213–240, https://doi.org/10.1016/S0377-0273(03)00363-9, 2004.
Shaw, C. S. J., Eyzaguirre, J., Fryer, B., and Gagnon, J.: Regional
Variations in the Mineralogy of Metasomatic Assemblages in Mantle Xenoliths
from the West Eifel Volcanic Field, Germany, J. Petrol., 46,
945–972, https://doi.org/10.1093/petrology/egi006, 2005.
Skemer, P., Katayama, I., Jiang, Z., and Karato, S.-I.: The misorientation
index: Development of a new method for calculating the strength of
lattice-preferred orientation, Tectonophysics, 411, 157–167,
https://doi.org/10.1016/j.tecto.2005.08.023, 2005.
Skemer, P., Warren, J. M., Kelemen, P. B., and Hirth, G.: Microstructural
and Rheological Evolution of a Mantle Shear Zone, J. Petrol., 51,
43–53, https://doi.org/10.1093/petrology/egp057, 2010.
Soustelle, V., Tommasi, A., Bodinier, J. L., Garrido, C. J., and Vauchez,
A.: Deformation and reactive melt transport in the mantle lithosphere above
a large-scale partial melting domain: the Ronda Peridotite Massif, southern
Spain, J. Petrol., 50, 1235–1266, https://doi.org/10.1093/petrology/egp032, 2009.
Soustelle, V., Tommasi, A., Demouchy, S., and Ionov, D. A.: Deformation and
Fluid–Rock Interaction in the Supra-subduction Mantle: Microstructures and
Water Contents in Peridotite Xenoliths from the Avacha Volcano, Kamchatka,
J. Petrol., 51, 363–394, https://doi.org/10.1093/petrology/egp085, 2010.
Spakman, W. and Wortel, R.: A tomographic view on western Mediterranean
geodynamics, in: The TRANSMED atlas – The Mediterranean region from crust to
mantle, edited by: Cavazza, W., Roure, F., Spakman, W., Stampfli, G. M., and
Ziegler, P. A., Springer, Berlin Heidelberg, 31–52, 2004.
Streckeisen, A.: To each plutonic rock its proper name, Earth-Sci.
Rev., 12, 1–33, 1976.
Suhr, G.: Evaluation of upper mantle microstructures in the Table Mountain
massif (Bay of Islands ophiolite), J. Struct. Geol., 15,
1273–1292, https://doi.org/10.1016/0191-8141(93)90102-G, 1993.
Tasaka, M. and Hiraga, T.: Influence of mineral fraction on the rheological
properties of forsterite plus enstatite during grain-size-sensitive creep:
1. Grain size and grain growth laws, J. Geophys. Res.-Sol.
Ea., 118, 3970–3990, https://doi.org/10.1002/jgrb.50285, 2013.
Tasaka, M., Hiraga, T., and Michibayashi, K.: Influence of mineral fraction
on the rheological properties of forsterite + enstatite during grain size
sensitive creep: 3, Application of grain growth and flow laws on peridotite
ultramylonite, J. Geophys. Res.-Sol. Ea., 119, 840–857,
https://doi.org/10.1002/2013JB010619, 2014.
Tommasi, A. and Vauchez, A.: Heterogeneity and anisotropy in the
lithospheric mantle, Tectonophysics, 661, 11–37,
https://doi.org/10.1016/j.tecto.2015.07.026, 2015.
Tommasi, A., Tikoff, B., and Vauchez, A.: Upper mantle tectonics:
three-dimensional deformation, olivine crystallographic fabrics and seismic
properties, Earth Planet. Sc. Lett., 168, 173–186, 1999.
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.-Sol. Ea., 105, 7893–7908, 2000.
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. Sc. Lett.,
227, 539–556, https://doi.org/10.1016/j.epsl.2004.09.019, 2004.
Tommasi, A., Vauchez, A., and Ionov, D. A.: Deformation, static
recrystallization, and reactive melt transport in shallow subcontinental
mantle xenoliths (Tok Cenozoic volcanic field, SE Siberia), Earth
Planet. Sc. Lett., 272, 65–77, https://doi.org/10.1016/j.epsl.2008.04.020, 2008.
Turner, S. P., Platt, J. P., George, R. M. M., Kelley, S. P., Pearson, D.
G., and Nowell, G. M.: Magmatism associated with orogenic collapse of the
Betic–Alboran domain, SE Spain, J. Petrol., 40, 1011–1036,
https://doi.org/10.1093/petroj/40.6.1011, 1999.
Urai, J. L., Means, W. D., and Lister, G. S.: Dynamic recrystallization of
minerals, in: Mineral and rock deformation: laboratory studies (the Paterson
volume), edited by: Hobbs, B. E. and Heard, H. C., Geophysical Monograph
36, American Geophysical Union, Washington, D.C., 161–199, 1986.
van Hinsbergen, D. J. J., Vissers, R. L. M., and Spakman, W.: Origin and
consequences of western Mediterranean subduction, rollback, and slab
segmentation, Tectonics, 33, 2013TC003349, https://doi.org/10.1002/2013TC003349, 2014.
Varas-Reus, M. I., Garrido, C. J., Marchesi, C., Bodinier, J.-L., Frets, E.,
Bosch, D., Tommasi, A., Hidas, K., and Targuisti, K.: Refertilization
Processes in the Subcontinental Lithospheric Mantle: the Record of the Beni
Bousera Orogenic Peridotite (Rif Belt, Northern Morocco), J.
Petrol., 57, 2251–2270, https://doi.org/10.1093/petrology/egx003, 2016.
Varas-Reus, M. I., Garrido, C. J., Marchesi, C., Bosch, D., Acosta-Vigil,
A., Hidas, K., Barich, A., and Booth-Rea, G.: Sr-Nd-Pb isotopic systematics
of crustal rocks from the western Betics (S. Spain): Implications for
crustal recycling in the lithospheric mantle beneath the westernmost
Mediterranean, Lithos, 276, 45–61,
https://doi.org/10.1016/j.lithos.2016.10.003, 2017.
Vauchez, A., Dineur, F., and Rudnick, R.: Microstructure, texture and
seismic anisotropy of the lithospheric mantle above a mantle plume: Insights
from the Labait volcano xenoliths (Tanzania), Earth Planet. Sc.
Lett., 232, 295–314, 2005.
Vauchez, A., Tommasi, A., and Mainprice, D.: Faults (shear zones) in the
Earth's mantle, Tectonophysics, 558, 1–27, https://doi.org/10.1016/j.tecto.2012.06.006,
2012.
Vollmer, F. W.: An application of eigenvalue methods to structural domain
analysis, Geol. Soc. Am. Bull., 102, 786–791,
https://doi.org/10.1130/0016-7606(1990)102<0786:aaoemt>2.3.co;2, 1990.
Warren, J. M. and Hirth, G.: Grain size sensitive deformation mechanisms in
naturally deformed peridotites, Earth Planet. Sc. Lett., 248,
438–450, https://doi.org/10.1016/j.epsl.2006.06.006, 2006.
Wilson, J. T.: A New Class of Faults and their Bearing on Continental Drift,
Nature, 207, 343–347, https://doi.org/10.1038/207343a0, 1965.
Witt-Eickschen, G. and Seck, H. A.: Solubility of Ca and Al in
orthopyroxene from spinel peridotite – an improved version of an empirical
geothermometer, Contrib. Mineral. Petr., 106, 431–439,
1991.
Workman, R. K. and Hart, S. R.: Major and trace element composition of the
depleted MORB mantle (DMM), Earth Planet. Sc. Lett., 231, 53–72,
https://doi.org/10.1016/j.epsl.2004.12.005, 2005.
Wright, S. I., Nowell, M. M., and Field, D. P.: A review of strain analysis
using electron backscatter diffraction, Microscopy and microanalysis: the
official journal of Microscopy Society of America, Microbeam Analysis
Society, Microscopical Society of Canada, 17, 316–329,
https://doi.org/10.1017/s1431927611000055, 2011.
Yang, K., Hidas, K., Falus, G., Szabo, C., Nam, B., Kovacs, I., and Hwang,
B.: Relation between mantle shear zone deformation and metasomatism in
spinel peridotite xenoliths of Jeju Island (South Korea): Evidence from
olivine CPO and trace elements, J. Geodynam., 50, 424–440,
https://doi.org/10.1016/j.jog.2010.05.005, 2010.
Yaxley, G. M., Cranwford, A. J., and Green, D. H.: Evidence for carbonatite
metasomatism in spinel peridotite xenoliths from western Victoria,
Australia, Earth Planet. Sc. Lett., 107, 305–317, 1991.
Zaffarana, C., Tommasi, A., Vauchez, A., and Grégoire, M.:
Microstructures and seismic properties of south Patagonian mantle xenoliths
(Gobernador Gregores and Pali Aike), Tectonophysics, 621, 175–197,
https://doi.org/10.1016/j.tecto.2014.02.017, 2014.
Zerka, M., Cottin, J. Y., Gregoire, M., Lorand, J. P., Megartsi, M., and
Midoun, M.: Ultramafic xenoliths from Quaternary alkali volcanism from
Oranie (Tell, western Algeria): witnesses of a sheared and enriched
lithosphere, C. R. Geosci., 334, 387–394,
https://doi.org/10.1016/s1631-0713(02)01771-6, 2002.
Zimmerman, M. E. and Kohlstedt, D. L.: Rheological Properties of Partially
Molten Lherzolite, J. Petrol., 45, 275–298,
https://doi.org/10.1093/petrology/egg089, 2004.
Short summary
Subduction-transform edge propagator (STEP) faults are the locus of continual lithospheric tearing at the edges of subducted slabs, resulting in sharp changes in the lithospheric thickness and triggering lateral and/or near-vertical mantle flow. Here, we study upper mantle rocks recovered from a STEP fault context by < 4 Ma alkali volcanism. We reconstruct how the microstructure developed during deformation and coupled melt–rock interaction, which are promoted by lithospheric tearing at depth.
Subduction-transform edge propagator (STEP) faults are the locus of continual lithospheric...
