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Solid Earth
An interactive open-access journal of the European Geosciences Union
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- About
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IF 2.921
3.087CiteScore
4.8SNIP 1.314
SJR 0.993
index 38h5-index 36
Abstracted/indexed
Abstracted/indexed
Volume 3, issue 2
Solid Earth, 3, 199–212, 2012
https://doi.org/10.5194/se-3-199-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/se-3-199-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue: The Lithosphere-Asthenosphere Boundary (LAB) Dilemma
Solid Earth, 3, 199–212, 2012
https://doi.org/10.5194/se-3-199-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/se-3-199-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article 08 Aug 2012
Research article | 08 Aug 2012
Global distribution of the lithosphere-asthenosphere boundary: a new look
V. M. Hamza and F. P. Vieira
Related subject area
Tectonics
Control of 3-D tectonic inheritance on fold-and-thrust belts: insights from 3-D numerical models and application to the Helvetic nappe system
Plio-Quaternary tectonic evolution of the southern margin of the Alboran Basin (Western Mediterranean)
Surface deformation relating to the 2018 Lake Muir earthquake sequence, southwest Western Australia: new insight into stable continental region earthquakes
Seismic reflection data reveal the 3D structure of the newly discovered Exmouth Dyke Swarm, offshore NW Australia
The enigmatic curvature of Central Iberia and its puzzling kinematics
Cenozoic deformation in the Tauern Window (Eastern Alps) constrained by in situ Th-Pb dating of fissure monazite
Uncertainties in break-up markers along the Iberia–Newfoundland margins illustrated by new seismic data
Subsidence associated with oil extraction, measured from time series analysis of Sentinel-1 data: case study of the Patos-Marinza oil field, Albania
Using seismic attributes in seismotectonic research: an application to the Norcia Mw = 6.5 earthquake (30 October 2016) in central Italy
A reconstruction of Iberia accounting for W-Tethys/N-Atlantic kinematics since the late Permian-Triassic
Tectonic inheritance controls nappe detachment, transport and stacking in the Helvetic nappe system, Switzerland: insights from thermomechanical simulations
Can subduction initiation at a transform fault be spontaneous?
The Geodynamic World Builder: a solution for complex initial conditions in numerical modeling
From mapped faults to fault-length earthquake magnitude (FLEM): a test on Italy with methodological implications
Lithosphere tearing along STEP faults and synkinematic formation of lherzolite and wehrlite in the shallow subcontinental mantle
A systematic comparison of experimental set-ups for modelling extensional tectonics
Improving subduction interface implementation in dynamic numerical models
The Bortoluzzi Mud Volcano (Ionian Sea, Italy) and its potential for tracking the seismic cycle of active faults
Relative timing of uplift along the Zagros Mountain Front Flexure (Kurdistan Region of Iraq): Constrained by geomorphic indices and landscape evolution modeling
The Ulakhan fault surface rupture and the seismicity of the Okhotsk–North America plate boundary
Control of increased sedimentation on orogenic fold-and-thrust belt structure – insights into the evolution of the Western Alps
Anticlockwise metamorphic pressure–temperature paths and nappe stacking in the Reisa Nappe Complex in the Scandinavian Caledonides, northern Norway: evidence for weakening of lower continental crust before and during continental collision
Deformation of feldspar at greenschist facies conditions – the record of mylonitic pegmatites from the Pfunderer Mountains, Eastern Alps
Correlation between tectonic stress regimes and methane seepage on the western Svalbard margin
The impact of earthquake cycle variability on neotectonic and paleoseismic slip rate estimates
From widespread Mississippian to localized Pennsylvanian extension in central Spitsbergen, Svalbard
The influence of detachment strength on the evolving deformational energy budget of physical accretionary prisms
New insights on the early Mesozoic evolution of multiple tectonic regimes in the northeastern North China Craton from the detrital zircon provenance of sedimentary strata
The influence of upper-plate advance and erosion on overriding plate deformation in orogen syntaxes
Channel flow, tectonic overpressure, and exhumation of high-pressure rocks in the Greater Himalayas
First evidence of active transpressive surface faulting at the front of the eastern Southern Alps, northeastern Italy: insight on the 1511 earthquake seismotectonics
The seismogenic fault system of the 2017 Mw 7.3 Iran–Iraq earthquake: constraints from surface and subsurface data, cross-section balancing, and restoration
Testing the effects of topography, geometry, and kinematics on modeled thermochronometer cooling ages in the eastern Bhutan Himalaya
Paleomagnetic constraints on the timing and distribution of Cenozoic rotations in Central and Eastern Anatolia
Structural disorder of graphite and implications for graphite thermometry
Deformation mechanisms and evolution of the microstructure of gouge in the Main Fault in Opalinus Clay in the Mont Terri rock laboratory (CH)
Flexible parallel implicit modelling of coupled thermal–hydraulic–mechanical processes in fractured rocks
Switching deformation mode and mechanisms during subduction of continental crust: a case study from Alpine Corsica
Analogue earthquakes and seismic cycles: experimental modelling across timescales
Active faulting, 3-D geological architecture and Plio-Quaternary structural evolution of extensional basins in the central Apennine chain, Italy
On the mechanical behaviour of a low-angle normal fault: the Alto Tiberina fault (Northern Apennines, Italy) system case study
Folding and necking across the scales: a review of theoretical and experimental results and their applications
A multi-stage 3-D stress field modelling approach exemplified in the Bavarian Molasse Basin
Alpine tectonic wedging and crustal delamination in the Cantabrian Mountains (NW Spain)
Tectonothermal evolution in the core of an arcuate fold and thrust belt: the south-eastern sector of the Cantabrian Zone (Variscan belt, north-western Spain)
Geophysical evidence of pre-sag rifting and post-rifting fault reactivation in the Parnaíba basin, Brazil
3-D visualisation of palaeoseismic trench stratigraphy and trench logging using terrestrial remote sensing and GPR – a multiparametric interpretation
The Imbert Formation of northern Hispaniola: a tectono-sedimentary record of arc–continent collision and ophiolite emplacement in the northern Caribbean subduction–accretionary prism
Geometry of the inverted Cretaceous Chañarcillo Basin based on 2-D gravity and field data – an approach to the structure of the western Central Andes of northern Chile
The hydrothermal power of oceanic lithosphere
Richard Spitz, Arthur Bauville, Jean-Luc Epard, Boris J. P. Kaus, Anton A. Popov, and Stefan M. Schmalholz
Solid Earth, 11, 999–1026, https://doi.org/10.5194/se-11-999-2020, https://doi.org/10.5194/se-11-999-2020, 2020
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We apply three-dimensional (3D) thermo-mechanical numerical simulations of the shortening of the upper crustal region of a passive margin in order to investigate the control of 3D laterally variable inherited structures on fold-and-thrust belt evolution and associated nappe formation. The model is applied to the Helvetic nappe system of the Swiss Alps. Our results show a 3D reconstruction of the first-order tectonic evolution showing the fundamental importance of inherited geological structures.
Manfred Lafosse, Elia d'Acremont, Alain Rabaute, Ferran Estrada, Martin Jollivet-Castelot, Juan Tomas Vazquez, Jesus Galindo-Zaldivar, Gemma Ercilla, Belen Alonso, Jeroen Smit, Abdellah Ammar, and Christian Gorini
Solid Earth, 11, 741–765, https://doi.org/10.5194/se-11-741-2020, https://doi.org/10.5194/se-11-741-2020, 2020
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The Alboran Sea is one of the most active region of the Mediterranean Sea. There, the basin architecture records the effect of the Africa–Eurasia plates convergence. We evidence a Pliocene transpression and a more recent Pleistocene tectonic reorganization. We propose that main driving force of the deformation is the Africa–Eurasia convergence, rather than other geodynamical processes. It highlights the evolution and the geometry of the present-day Africa–Eurasia plate boundary.
Dan J. Clark, Sarah Brennand, Gregory Brenn, Matthew C. Garthwaite, Jesse Dimech, Trevor I. Allen, and Sean Standen
Solid Earth, 11, 691–717, https://doi.org/10.5194/se-11-691-2020, https://doi.org/10.5194/se-11-691-2020, 2020
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A magnitude 5.3 reverse-faulting earthquake in September 2018 near Lake Muir in southwest Western Australia was followed after 2 months by a collocated magnitude 5.2 strike-slip event. The first event produced a ~ 5 km long and up to 0.5 m high west-facing surface rupture, and the second triggered event deformed but did not rupture the surface. The earthquake sequence was the ninth to have produced surface rupture in Australia. None of these show evidence for prior Quaternary surface rupture.
Craig Magee and Christopher Aiden-Lee Jackson
Solid Earth, 11, 579–606, https://doi.org/10.5194/se-11-579-2020, https://doi.org/10.5194/se-11-579-2020, 2020
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Injection of vertical sheets of magma (dyke swarms) controls tectonic and volcanic processes on Earth and other planets. Yet we know little of the 3D structure of dyke swarms. We use seismic reflection data, which provides ultrasound-like images of Earth's subsurface, to study a dyke swarm in 3D for the first time. We show that (1) dyke injection occurred in the Late Jurassic, (2) our data support previous models of dyke shape, and (3) seismic data provides a new way to view and study dykes.
Daniel Pastor-Galán, Gabriel Gutiérrez-Alonso, and Arlo B. Weil
Solid Earth Discuss., https://doi.org/10.5194/se-2020-51, https://doi.org/10.5194/se-2020-51, 2020
Revised manuscript accepted for SE
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Pangea assembled during Devonian to Early Permian times and resulted in large-scale and winding orogeny that today transects Europe, northwest Africa and eastern North America. This orogen is characterized by an
Sshape corrugated geometry in Iberia. This paper presents the advances and milestones in our understanding of the geometry and kinematics of the Central Iberian curve from the last decade, with particular attention to structural and paleomagnetic studies.
Emmanuelle Ricchi, Christian A. Bergemann, Edwin Gnos, Alfons Berger, Daniela Rubatto, Martin J. Whitehouse, and Franz Walter
Solid Earth, 11, 437–467, https://doi.org/10.5194/se-11-437-2020, https://doi.org/10.5194/se-11-437-2020, 2020
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This study investigates Cenozoic deformation during cooling and exhumation of the Tauern metamorphic and structural dome, Eastern Alps, through Th–Pb dating of fissure monazite-(Ce). Fissure (or hydrothermal) monazite-(Ce) typically crystallizes in a temperature range of 400–200 °C. Three major episodes of monazite growth occurred at approximately 21, 17, and 12 Ma, corroborating previous crystallization and cooling ages.
Annabel Causer, Lucía Pérez-Díaz, Jürgen Adam, and Graeme Eagles
Solid Earth, 11, 397–417, https://doi.org/10.5194/se-11-397-2020, https://doi.org/10.5194/se-11-397-2020, 2020
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Here we discuss the validity of so-called “break-up” markers along the Newfoundland margin, challenging their perceived suitability for plate kinematic reconstructions of the southern North Atlantic. We do this on the basis of newly available seismic transects across the Southern Newfoundland Basin. Our new data contradicts current interpretations of the extent of oceanic lithosphere and illustrates the need for a differently constraining the plate kinematics of the Iberian plate pre M0 times.
Marianne Métois, Mouna Benjelloun, Cécile Lasserre, Raphaël Grandin, Laurie Barrier, Edmond Dushi, and Rexhep Koçi
Solid Earth, 11, 363–378, https://doi.org/10.5194/se-11-363-2020, https://doi.org/10.5194/se-11-363-2020, 2020
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The Patos-Marinza oil field in Central Albania (40.71° N, 19.61° E) is one of the largest onshore oil fields in Europe. More than 7 million oil barrels are extracted per year from sandstone formations in western Albania. The regional seismicity culminated in December 2016, when a seismic sequence developed in the oil field, triggering the opening of a public inquiry. We take advantage of the Sentinel-1 radar images to show that a strong subsidence, probably induced, is taking place in the field.
Maurizio Ercoli, Emanuele Forte, Massimiliano Porreca, Ramon Carbonell, Cristina Pauselli, Giorgio Minelli, and Massimiliano R. Barchi
Solid Earth, 11, 329–348, https://doi.org/10.5194/se-11-329-2020, https://doi.org/10.5194/se-11-329-2020, 2020
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We present a first application of seismic attributes, a well-known technique in the oil and gas industry, to vintage seismic reflection profiles in a seismotectonic study. Our results improve data interpretability, allowing us to detect peculiar geophysical signatures of faulting and a regional seismogenic layer. We suggest a new tool for both seismotectonic research and assessments of the seismic hazard, not only in the central Apennines (Italy), but also in seismically active areas abroad.
Paul Angrand, Frédéric Mouthereau, Emmanuel Masini, and Riccardo Asti
Solid Earth Discuss., https://doi.org/10.5194/se-2020-24, https://doi.org/10.5194/se-2020-24, 2020
Revised manuscript accepted for SE
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We study the Iberian plate motion, from the late Permian to middle Cretaceous. During this time interval, two oceanic systems opened. Geological evidence shows that the Iberian domain well preserved the propagation of these two rift systems. We use geological evidence and preexisting kinematic models to propose a coherent kinematics model of Iberia that considers both the Neotethyan and Atlantic evolutions. Our model shows that the Europe-Iberia plate boundary was made of two rift systems.
Dániel Kiss, Thibault Duretz, and Stefan Markus Schmalholz
Solid Earth, 11, 287–305, https://doi.org/10.5194/se-11-287-2020, https://doi.org/10.5194/se-11-287-2020, 2020
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In this paper, we investigate the physical mechanisms of tectonic nappe formation by high-resolution numerical modeling. Tectonic nappes are key structural features of many mountain chains which are packets of rocks displaced, sometimes even up to 100 km, from their original position. However, the physical mechanisms involved are not fully understood. We solve numerical equations of fluid and solid dynamics to improve our knowledge. The results are compared with data from the Helvetic Alps.
Diane Arcay, Serge Lallemand, Sarah Abecassis, and Fanny Garel
Solid Earth, 11, 37–62, https://doi.org/10.5194/se-11-37-2020, https://doi.org/10.5194/se-11-37-2020, 2020
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We propose a new exploration of the concept of
spontaneouslithospheric collapse at a transform fault (TF) by performing a large study of conditions allowing instability of the thicker plate using 2-D thermomechanical simulations. Spontaneous subduction is modelled only if extreme mechanical conditions are assumed. We conclude that spontaneous collapse of the thick older plate at a TF evolving into mature subduction is an unlikely process of subduction initiation at modern Earth conditions.
Menno Fraters, Cedric Thieulot, Arie van den Berg, and Wim Spakman
Solid Earth, 10, 1785–1807, https://doi.org/10.5194/se-10-1785-2019, https://doi.org/10.5194/se-10-1785-2019, 2019
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Three-dimensional numerical modelling of geodynamic processes may benefit strongly from using realistic 3-D starting models that approximate, e.g. natural subduction settings in the geological past or at present. To this end, we developed the Geodynamic World Builder (GWB), which enables relatively straightforward parameterization of complex 3-D geometric structures associated with geodynamic processes. The GWB is an open-source community code designed to easily interface with geodynamic codes.
Fabio Trippetta, Patrizio Petricca, Andrea Billi, Cristiano Collettini, Marco Cuffaro, Anna Maria Lombardi, Davide Scrocca, Giancarlo Ventura, Andrea Morgante, and Carlo Doglioni
Solid Earth, 10, 1555–1579, https://doi.org/10.5194/se-10-1555-2019, https://doi.org/10.5194/se-10-1555-2019, 2019
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Considering all mapped faults in Italy, empirical scaling laws between fault dimensions and earthquake magnitude are used at the national scale. Results are compared with earthquake catalogues. The consistency between our results and the catalogues gives credibility to the method. Some large differences between the two datasets suggest the validation of this experiment elsewhere.
Károly Hidas, Carlos J. Garrido, Guillermo Booth-Rea, Claudio Marchesi, Jean-Louis Bodinier, Jean-Marie Dautria, Amina Louni-Hacini, and Abla Azzouni-Sekkal
Solid Earth, 10, 1099–1121, https://doi.org/10.5194/se-10-1099-2019, https://doi.org/10.5194/se-10-1099-2019, 2019
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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.
Frank Zwaan, Guido Schreurs, and Susanne J. H. Buiter
Solid Earth, 10, 1063–1097, https://doi.org/10.5194/se-10-1063-2019, https://doi.org/10.5194/se-10-1063-2019, 2019
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This work was inspired by an effort to numerically reproduce laboratory models of extension tectonics. We tested various set-ups to find a suitable analogue model and in the process systematically charted the impact of set-ups and boundary conditions on model results, a topic poorly described in existing scientific literature. We hope that our model results and the discussion on which specific tectonic settings they could represent may serve as a guide for future (analogue) modeling studies.
Dan Sandiford and Louis Moresi
Solid Earth, 10, 969–985, https://doi.org/10.5194/se-10-969-2019, https://doi.org/10.5194/se-10-969-2019, 2019
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This study investigates approaches to implementing plate boundaries within a fluid dynamic framework, targeted at the evolution of subduction over many millions of years.
Marco Cuffaro, Andrea Billi, Sabina Bigi, Alessandro Bosman, Cinzia G. Caruso, Alessia Conti, Andrea Corbo, Antonio Costanza, Giuseppe D'Anna, Carlo Doglioni, Paolo Esestime, Gioacchino Fertitta, Luca Gasperini, Francesco Italiano, Gianluca Lazzaro, Marco Ligi, Manfredi Longo, Eleonora Martorelli, Lorenzo Petracchini, Patrizio Petricca, Alina Polonia, and Tiziana Sgroi
Solid Earth, 10, 741–763, https://doi.org/10.5194/se-10-741-2019, https://doi.org/10.5194/se-10-741-2019, 2019
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The Ionian Sea in southern Italy is at the center of active convergence between the Eurasian and African plates, with many known
Mw > 7.0 earthquakes. Here, a recently discovered mud volcano (called the Bortoluzzi Mud Volcano or BMV) was surveyed during the Seismofaults 2017 cruise (May 2017). The BMV is the active emergence of crustal fluids probably squeezed up during the seismic cycle. As such, the BMV may potentially be used to track the seismic cycle of active faults.
Mjahid Zebari, Christoph Grützner, Payman Navabpour, and Kamil Ustaszewski
Solid Earth, 10, 663–682, https://doi.org/10.5194/se-10-663-2019, https://doi.org/10.5194/se-10-663-2019, 2019
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Here, we assessed the maturity level and then relative variation of uplift time of three anticlines along the hanging wall of the Zagros Mountain Front Flexure in the Kurdistan Region of Iraq. We also estimated the relative time difference between the uplift time of more mature anticlines and less mature ones to be around 200 kyr via building a landscape evolution model. These enabled us to reconstruct a spatial and temporal evolution of these anticlines.
David Hindle, Boris Sedov, Susanne Lindauer, and Kevin Mackey
Solid Earth, 10, 561–580, https://doi.org/10.5194/se-10-561-2019, https://doi.org/10.5194/se-10-561-2019, 2019
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On one of the least studied boundaries between tectonic plates (North America–Okhotsk in northeastern Russia), which moves very similarly to the famous San Andreas fault in California, we have found the traces of earthquakes from the recent past, but before the time of historical records. This makes us a little more sure that the fault is still the place where movement between the plates takes place, and when it happens again, there could be dangerous earthquakes.
Zoltán Erdős, Ritske S. Huismans, and Peter van der Beek
Solid Earth, 10, 391–404, https://doi.org/10.5194/se-10-391-2019, https://doi.org/10.5194/se-10-391-2019, 2019
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We used a 2-D thermomechanical code to simulate the evolution of an orogen. Our aim was to study the interaction between tectonic and surface processes in orogenic forelands. We found that an increase in the sediment input to the foreland results in prolonged activity of the active frontal thrust. Such a scenario could occur naturally as a result of increasing relief in the orogenic hinterland or a change in climatic conditions. We compare our results with observations from the Alps.
Carly Faber, Holger Stünitz, Deta Gasser, Petr Jeřábek, Katrin Kraus, Fernando Corfu, Erling K. Ravna, and Jiří Konopásek
Solid Earth, 10, 117–148, https://doi.org/10.5194/se-10-117-2019, https://doi.org/10.5194/se-10-117-2019, 2019
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The Caledonian mountains formed when Baltica and Laurentia collided around 450–400 million years ago. This work describes the history of the rocks and the dynamics of that continental collision through space and time using field mapping, estimated pressures and temperatures, and age dating on rocks from northern Norway. The rocks preserve continental collision between 440–430 million years ago, and an unusual pressure–temperature evolution suggests unusual tectonic activity prior to collision.
Felix Hentschel, Claudia A. Trepmann, and Emilie Janots
Solid Earth, 10, 95–116, https://doi.org/10.5194/se-10-95-2019, https://doi.org/10.5194/se-10-95-2019, 2019
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We used microscopy and electron backscatter diffraction to analyse the deformation behaviour of feldspar at greenschist facies conditions in mylonitic pegmatites of the Austroalpine basement. There are strong uncertainties about feldspar deformation, mainly because of the varying contributions of different deformation processes. We observed that deformation is mainly the result of coupled fracturing and dislocation glide, followed by growth and granular flow.
Andreia Plaza-Faverola and Marie Keiding
Solid Earth, 10, 79–94, https://doi.org/10.5194/se-10-79-2019, https://doi.org/10.5194/se-10-79-2019, 2019
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Vast amounts of methane are released to the oceans at continental margins (seepage). The mechanisms controlling when and how much methane is released are not fully understood. In the Fram Strait seepage may be affected by complex tectonic processes. We modelled the stress generated on the sediments exclusively due to the opening of the mid-ocean ridges and found that changes in the stress field may be controlling when and where seepage occurs, which has implications for seepage reconstruction.
Richard Styron
Solid Earth, 10, 15–25, https://doi.org/10.5194/se-10-15-2019, https://doi.org/10.5194/se-10-15-2019, 2019
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Successive earthquakes on a single fault are not perfectly periodic in time. There is some natural random variability. This leads to variations in estimated fault slip rates over short timescales though the longer-term mean slip rate stays constant, which may cause problems when comparing slip rates at different timescales. This paper is the first to quantify these effects, demonstrating substantial variation in slip rates over a few to tens of earthquakes, but much less at longer timescales.
Jean-Baptiste P. Koehl and Jhon M. Muñoz-Barrera
Solid Earth, 9, 1535–1558, https://doi.org/10.5194/se-9-1535-2018, https://doi.org/10.5194/se-9-1535-2018, 2018
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This research is dedicated to the study of poorly understood coal-bearing Mississippian (ca. 360–325 Ma) sedimentary rocks in central Spitsbergen. Our results suggest that these rocks were deposited during a period of widespread extension involving multiple fault trends, including faults striking subparallel to the extension direction, while overlying Pennsylvanian rocks (ca. 325–300 Ma) were deposited during extension localized along fewer, larger faults.
Jessica McBeck, Michele Cooke, Pauline Souloumiac, Bertrand Maillot, and Baptiste Mary
Solid Earth, 9, 1421–1436, https://doi.org/10.5194/se-9-1421-2018, https://doi.org/10.5194/se-9-1421-2018, 2018
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In order to assess the influence of deformational processes within accretionary prisms, we track the evolution of the energy budget. We track the consumption of energy stored in internal deformation of the host rock, energy expended in frictional slip, energy used in uplift against gravity and total energy input. We find that the energy used in internal deformation is < 1% of the total and that the energy expended in frictional slip is the largest portion of the budget.
Yi Ni Wang, Wen Liang Xu, Feng Wang, and Xiao Bo Li
Solid Earth, 9, 1375–1397, https://doi.org/10.5194/se-9-1375-2018, https://doi.org/10.5194/se-9-1375-2018, 2018
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Early Triassic sediments in the northeastern North Chian Craton resulted from the subduction of the Paleo-Asian oceanic plate and collision between the North China and Yangtze cratons. Late Triassic sediments resulted from the final closure of the Paleo-Asian Ocean in the Middle Triassic and exhumation of the Su–Lu Orogenic Belt. Early Jurassic change in provenance was related to the uplift of the Xing'an–Mongolia Orogenic Belt and the subduction of the Paleo-Pacific Plate.
Matthias Nettesheim, Todd A. Ehlers, David M. Whipp, and Alexander Koptev
Solid Earth, 9, 1207–1224, https://doi.org/10.5194/se-9-1207-2018, https://doi.org/10.5194/se-9-1207-2018, 2018
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In this modeling study, we investigate rock uplift at plate corners (syntaxes). These are characterized by a unique bent geometry at subduction zones and exhibit some of the world's highest rock uplift rates. We find that the style of deformation changes above the plate's bent section and that active subduction is necessary to generate an isolated region of rapid uplift. Strong erosion there localizes uplift on even smaller scales, suggesting both tectonic and surface processes are important.
Fernando O. Marques, Nibir Mandal, Subhajit Ghosh, Giorgio Ranalli, and Santanu Bose
Solid Earth, 9, 1061–1078, https://doi.org/10.5194/se-9-1061-2018, https://doi.org/10.5194/se-9-1061-2018, 2018
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We couple Himalayan tectonics to numerical simulations to show how upward-tapering channel (UTC) flow can be used to explain the evidence. The simulations predict high tectonic overpressure (TOP > 2), which increases exponentially with a decrease in UTC mouth width, and with increase in velocity and channel viscosity. The highest TOP occurs at depths < −60 km, which, combined with the flow in the UTC, forces high-pressure rocks to exhume along the channel’s hanging wall, as in the Himalayas.
Emanuela Falcucci, Maria Eliana Poli, Fabrizio Galadini, Giancarlo Scardia, Giovanni Paiero, and Adriano Zanferrari
Solid Earth, 9, 911–922, https://doi.org/10.5194/se-9-911-2018, https://doi.org/10.5194/se-9-911-2018, 2018
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We first investigated the recent activity of a major active fault system, probably responsible for the 1511 earthquake, one of the most destructive seismic events of the eastern Alps and of continental Europe over the past millennium.
Stefano Tavani, Mariano Parente, Francesco Puzone, Amerigo Corradetti, Gholamreza Gharabeigli, Mehdi Valinejad, Davoud Morsalnejad, and Stefano Mazzoli
Solid Earth, 9, 821–831, https://doi.org/10.5194/se-9-821-2018, https://doi.org/10.5194/se-9-821-2018, 2018
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A balanced cross section across the hypocentre of the 2017 Iran–Iraq Mw 7.3 earthquake is presented. The structural style of the area is characterised by inversion tectonics with partial decoupling between the basement and the 10 km thick sedimentary cover. The main shock is located along a low-dipping lateral ramp of the Mountain Front Fault. The balanced cross section indicates that the Mountain Front Fault is the only fault where an Mw 7.3 earthquake may occur.
Michelle E. Gilmore, Nadine McQuarrie, Paul R. Eizenhöfer, and Todd A. Ehlers
Solid Earth, 9, 599–627, https://doi.org/10.5194/se-9-599-2018, https://doi.org/10.5194/se-9-599-2018, 2018
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We examine the Himalayan Mountains of Bhutan by integrating balanced geologic cross sections with cooling ages from a suite of mineral systems. Interpretations of cooling ages are intrinsically linked to both the motion along faults as well as the location and magnitude of erosion. In this study, we use flexural and thermal kinematic models to understand the sensitivity of predicted cooling ages to changes in fault kinematics, geometry, and topography.
Derya Gürer, Douwe J. J. van Hinsbergen, Murat Özkaptan, Iverna Creton, Mathijs R. Koymans, Antonio Cascella, and Cornelis G. Langereis
Solid Earth, 9, 295–322, https://doi.org/10.5194/se-9-295-2018, https://doi.org/10.5194/se-9-295-2018, 2018
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Central and Eastern Anatolia (present-day Turkey) accommodated Africa–Eurasia convergence in Cenozoic times. As a result, the region underwent distributed deformation and rotation. We provide a paleomagnetic dataset from sedimentary basins and assess the timing and amount of rotations. The obtained rotation patterns together with known fault zones suggest that south-central Turkey represents a coherently counterclockwise-rotating domain.
Martina Kirilova, Virginia Toy, Jeremy S. Rooney, Carolina Giorgetti, Keith C. Gordon, Cristiano Collettini, and Toru Takeshita
Solid Earth, 9, 223–231, https://doi.org/10.5194/se-9-223-2018, https://doi.org/10.5194/se-9-223-2018, 2018
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Graphite crystallinity “irreversibly” increases with temperature and it has been calibrated as a thermometer recording peak temperatures experienced by a rock. To examine the possibility of mechanical modifications of graphite structure and the impacts on graphite thermometry we performed deformation experiments. Raman spectroscopy demonstrates a reduction in crystallinity due to mechanical reworking in the brittle field. This finding clearly compromises the validity of the graphite thermometry.
Ben Laurich, Janos L. Urai, Christian Vollmer, and Christophe Nussbaum
Solid Earth, 9, 1–24, https://doi.org/10.5194/se-9-1-2018, https://doi.org/10.5194/se-9-1-2018, 2018
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In Switzerland, the Opalinus Clay (OPA) formation is favored to host a repository for nuclear waste. Thus, we must know its deformation behavior. In this study, we focused on the microstructure of gouge, a thin (< 2 cm), drastically strained clay layer at the so-called Main Fault in the Mont Terri rock laboratory. We suggest that in situ gouge deforms in a more viscous manner than undeformed OPA in laboratory conditions. Moreover, we speculate about the origin and evolution of the gouge layer.
Mauro Cacace and Antoine B. Jacquey
Solid Earth, 8, 921–941, https://doi.org/10.5194/se-8-921-2017, https://doi.org/10.5194/se-8-921-2017, 2017
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The paper describes theory and numerical implementation for coupled thermo–hydraulic–mechanical processes focusing on reservoir (mainly related to geothermal energy) applications.
Giancarlo Molli, Luca Menegon, and Alessandro Malasoma
Solid Earth, 8, 767–788, https://doi.org/10.5194/se-8-767-2017, https://doi.org/10.5194/se-8-767-2017, 2017
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We present a new case study on the role of brittle precursors in nucleating shear zone. Our studied sample shows a high-pressure, low-temperature (HP/LT) microscale ultramylonite developed by brittle precursors induced during deformation within a host HP/LT granitic mylonite. We infer that the studied structures may be considered as a small-scale example of fault structures related to stick-slip strain accommodation during subduction of continental crust.
Matthias Rosenau, Fabio Corbi, and Stephane Dominguez
Solid Earth, 8, 597–635, https://doi.org/10.5194/se-8-597-2017, https://doi.org/10.5194/se-8-597-2017, 2017
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This paper reviews experimental analogue modelling approaches to earthquakes and seismic cycles on timescales from seconds (rupture dynamics) to millions of years (tectonics). Over the last century experiments developed from simple spring-slider and fault block models to seismotectonic scale models. Based on recent advances in material characterization and monitoring techniques, analogue models today are able to simulate the seismotectonic evolution of the earth in various tectonic settings.
Stefano Gori, Emanuela Falcucci, Chiara Ladina, Simone Marzorati, and Fabrizio Galadini
Solid Earth, 8, 319–337, https://doi.org/10.5194/se-8-319-2017, https://doi.org/10.5194/se-8-319-2017, 2017
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We integrated geological and geophysical data to study the evolution of a large sector of the central Apennines, in Italy. The adopted approach permitted us to cast light on timing of faults activity over the past about 2 million years. The results we obtained has implication in terms of assessment of seismic sources of strong earthquakes. In particular, we defined which of the investigated faults are able to produce large-magnitude seismic events and which are no longer able.
Luigi Vadacca, Emanuele Casarotti, Lauro Chiaraluce, and Massimo Cocco
Solid Earth, 7, 1537–1549, https://doi.org/10.5194/se-7-1537-2016, https://doi.org/10.5194/se-7-1537-2016, 2016
Stefan Markus Schmalholz and Neil Sydney Mancktelow
Solid Earth, 7, 1417–1465, https://doi.org/10.5194/se-7-1417-2016, https://doi.org/10.5194/se-7-1417-2016, 2016
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About 200 years ago in 1815 Sir James Hall made his famous analogue experiments, which showed probably for the first time that natural folds in ductile rock are the result of a horizontal compression. If such rocks are extended, then the rock layers can thin only locally, which is a process termed necking, and the resulting structure is often termed pinch-and-swell. We review here theoretical and experimental results on folding and necking on all geological scales.
Moritz O. Ziegler, Oliver Heidbach, John Reinecker, Anna M. Przybycin, and Magdalena Scheck-Wenderoth
Solid Earth, 7, 1365–1382, https://doi.org/10.5194/se-7-1365-2016, https://doi.org/10.5194/se-7-1365-2016, 2016
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Subsurface engineering relies on sparsely distributed data points of the stress state of the earth's crust. 3D geomechanical--numerical modelling is applied to estimate the stress state in the entire volume of a large area. We present a multi-stage approach of differently sized models which provide the stress state in an area of interest derived from few and widely scattered data records. Furthermore we demonstrate the changes in reliability of the model depending on different input parameters.
Jorge Gallastegui, Javier A. Pulgar, and Josep Gallart
Solid Earth, 7, 1043–1057, https://doi.org/10.5194/se-7-1043-2016, https://doi.org/10.5194/se-7-1043-2016, 2016
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We present the interpretation of deep seismic reflection profile ESCIN-2 across the boundary between the Cantabrian Mountains and the Cenozoic Duero Basin (NW Spain). 2-D seismic modelling allowed us to construct a N-S geological cross section which is compatible with the rest of the geophysical data. This profile shows the importance of the N-S Alpine deformation. A wedge of Cantabrian margin crust indented southwards into the delaminated Iberian crust, forcing its northward subduction.
María Luz Valín, Susana García-López, Covadonga Brime, Fernando Bastida, and Jesús Aller
Solid Earth, 7, 1003–1022, https://doi.org/10.5194/se-7-1003-2016, https://doi.org/10.5194/se-7-1003-2016, 2016
David Lopes de Castro, Francisco Hilário Bezerra, Reinhardt Adolfo Fuck, and Roberta Mary Vidotti
Solid Earth, 7, 529–548, https://doi.org/10.5194/se-7-529-2016, https://doi.org/10.5194/se-7-529-2016, 2016
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We combine new seismic data and well logs with airborne gravity and magnetic data to reveal the internal architecture of the Parnaíba basin. This Phanerozoic sedimentary basin overlies a large region of Precambrian crustal blocks in the South American platform before the break-up of the West Gondwana in Early Cretaceous. The tectonic evolution of this important cratonic basin involved a complex rifting phase followed by a long period of sag subsidence, with multiple fault reactivation.
Sascha Schneiderwind, Jack Mason, Thomas Wiatr, Ioannis Papanikolaou, and Klaus Reicherter
Solid Earth, 7, 323–340, https://doi.org/10.5194/se-7-323-2016, https://doi.org/10.5194/se-7-323-2016, 2016
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Palaeoseismological research uses historical earthquakes to verify seismic hazard assessment. Earthquakes of magnitude M > 5.5 likely produce surface ruptures that can be preserved in the subsurface. Buried soils or progressive displacements are the main targets of trenching studies. However, the recognition of these features is challenging for inexperienced researchers. Here a workflow is presented which applies remote sensing and geophysical techniques to verify layer distinction.
J. Escuder-Viruete, Á. Suárez-Rodríguez, J. Gabites, and A. Pérez-Estaún
Solid Earth, 7, 11–36, https://doi.org/10.5194/se-7-11-2016, https://doi.org/10.5194/se-7-11-2016, 2016
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New stratigraphical, structural, geochemical, and geochronological data from the northern Caribbean orogenic belt indicate that the Imbert Fm constitutes a coarsening-upward stratigraphic sequence that records the transition of the sedimentation from a pre-collisional forearc to a syn-collisional piggy-back basin in the lower-to-middle Eocene. This piggy-back basin was transported to the top of the Puerto Plata ophiolitic slab as it was emplaced onto the North America continental margin units.
F. Martínez, A. Maksymowicz, H. Ochoa, and D. Díaz
Solid Earth, 6, 1259–1276, https://doi.org/10.5194/se-6-1259-2015, https://doi.org/10.5194/se-6-1259-2015, 2015
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This paper discusses an integrated approach that provides new ideas about the structure of the eastern Coastal Cordillera in the western Central Andes of northern Chile (27º–28ºS). The integration of gravity and geological information shows that the architecture of this sector is related to the inversion of a Cretaceous rift system. Ages of the synorogenic deposits exposed unconformably over the inversion structure have confirmed a Late Cretaceous age for the Andean deformation in the region.
C. J. Grose and J. C. Afonso
Solid Earth, 6, 1131–1155, https://doi.org/10.5194/se-6-1131-2015, https://doi.org/10.5194/se-6-1131-2015, 2015
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Due to a thermal insulation effect of oceanic crust, the seafloor heat flux is predicted to be low over young lithosphere (compared to other cooling models). Consequently, the amount of heat extracted from oceanic lithosphere by ventilated hydrothermal circulation is predicted to be significantly lower than previous models. About 50% of total hydrothermal power is extracted on ridge axes.
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