Articles | Volume 11, issue 2
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Cenozoic deformation in the Tauern Window (Eastern Alps) constrained by in situ Th-Pb dating of fissure monazite
Department of Earth Sciences, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, Switzerland
Christian A. Bergemann
Institute of Geosciences, Heidelberg University, Im Neuenheimer Feld 236, 69120 Heidelberg, Germany
Natural History Museum of Geneva, Route de Malagnou 1, 1208 Geneva, Switzerland
Institute of Geological Sciences, University of Bern, Baltzerstrasse 1+3, 3012 Bern, Switzerland
Institute of Geological Sciences, University of Bern, Baltzerstrasse 1+3, 3012 Bern, Switzerland
Institute of Earth Sciences, University of Lausanne, Geopolis, 1015 Lausanne, Switzerland
Martin J. Whitehouse
Swedish Museum of Natural History, P.O. Box 50007, 104-05 Stockholm, Sweden
Institut für Erdwissenschaften, Karl-Franzens-Universität, Universitätsplatz 2, 8010 Graz, Austria
No articles found.
Veronica Peverelli, Alfons Berger, Martin Wille, Thomas Pettke, Pierre Lanari, Igor Maria Villa, and Marco Herwegh
Solid Earth, 13, 1803–1821,Short summary
This work studies the interplay of epidote dissolution–precipitation and quartz dynamic recrystallization during viscous granular flow in a deforming epidote–quartz vein. Pb and Sr isotope data indicate that epidote dissolution–precipitation is mediated by internal/recycled fluids with an additional external fluid component. Microstructures and geochemical data show that the epidote material is redistributed and chemically homogenized within the deforming vein via a dynamic granular fluid pump.
Veronica Peverelli, Tanya Ewing, Daniela Rubatto, Martin Wille, Alfons Berger, Igor Maria Villa, Pierre Lanari, Thomas Pettke, and Marco Herwegh
Geochronology, 3, 123–147,Short summary
This work presents LA-ICP-MS U–Pb geochronology of epidote in hydrothermal veins. The challenges of epidote dating are addressed, and a protocol is proposed allowing us to obtain epidote U–Pb ages with a precision as good as 5 % in addition to the initial Pb isotopic composition of the epidote-forming fluid. Epidote demonstrates its potential to be used as a U–Pb geochronometer and as a fluid tracer, allowing us to reconstruct the timing of hydrothermal activity and the origin of the fluid(s).
James Gilgannon, Marius Waldvogel, Thomas Poulet, Florian Fusseis, Alfons Berger, Auke Barnhoorn, and Marco Herwegh
Solid Earth, 12, 405–420,Short summary
Using experiments that simulate deep tectonic interfaces, known as viscous shear zones, we found that these zones spontaneously develop periodic sheets of small pores. The presence of porous layers in deep rocks undergoing tectonic deformation is significant because it requires a change to the current model of how the Earth deforms. Emergent porous layers in viscous rocks will focus mineralising fluids and could lead to the seismic failure of rocks that are never supposed to have this occur.
Alice Vho, Pierre Lanari, Daniela Rubatto, and Jörg Hermann
Solid Earth, 11, 307–328,Short summary
This study presents an approach that combines equilibrium thermodynamic modelling with oxygen isotope fractionation modelling for investigating fluid–rock interaction in metamorphic systems. An application to subduction zones shows that chemical and isotopic zoning in minerals can be used to determine feasible fluid sources and the conditions of interaction. Slab-derived fluids can cause oxygen isotope variations in the mantle wedge that may result in anomalous isotopic signatures of arc lavas.
Christian A. Bergemann, Edwin Gnos, Alfons Berger, Emilie Janots, and Martin J. Whitehouse
Solid Earth, 11, 199–222,Short summary
Metamorphic domes are areas in a mountain chain that were unburied and where deeper parts of the crust rose to the surface. The Lepontine Dome in the Swiss and Italian Alps is such a place, and it is additionally bordered on two sides by shear zones where crustal blocks moved past each other. To determine when these tectonic movements happened, we measured the ages of monazite crystals that form in fluid-filled pockets inside the rocks during these movements of exhumation and deformation.
Emilie Janots, Alexis Grand'Homme, Matthias Bernet, Damien Guillaume, Edwin Gnos, Marie-Christine Boiron, Magali Rossi, Anne-Magali Seydoux-Guillaume, and Roger De Ascenção Guedes
Solid Earth, 10, 211–223,Short summary
This geochronological and thermometric study reveals unusually hot fluids in an Alpine-type fissure of granite from the external crystalline massif (Western Alps). The fluid is estimated to be 150-250 °C hotter than the host rock and requires a dynamic fluid pathway at mid-crustal conditions in the ductile regime. This fluid circulation resets the zircon fission track thermochronometer, but only at the fissure contact. Thermal disturbances due to advective heating appear to be localized.
Ismay Vénice Akker, Josef Kaufmann, Guillaume Desbois, Jop Klaver, Janos L. Urai, Alfons Berger, and Marco Herwegh
Solid Earth, 9, 1141–1156,Short summary
We studied porosity changes of slates from eastern Switzerland, which were deposited in an ocean in front of the emerging Alps during the Cenozoic. The Alpine collision between the European and African plates brought the rocks from this basin to today’s position in the Alps. From the basin to the surface, the porosity first decreased down to a small number of round cavities (<1 vol%) to microfractures, and once at the surface, the porosity increased again due to the formation of macro-fractures.
Raphael Schneeberger, Miguel de La Varga, Daniel Egli, Alfons Berger, Florian Kober, Florian Wellmann, and Marco Herwegh
Solid Earth, 8, 987–1002,Short summary
Structural 3-D modelling has become a widely used technique within applied projects. We performed a typical modelling workflow for a study site with the occurrence of an underground facility. This exceptional setting enabled us to test the surface-based extrapolation of faults with the mapped faults underground. We estimated the extrapolation-related uncertainty with probabilistic 2-D interpolation. This research was conducted to improve structural 3-D modelling in less-constrained areas.
C. L. McKay, J. Groeneveld, H. L. Filipsson, D. Gallego-Torres, M. J. Whitehouse, T. Toyofuku, and O.E. Romero
Biogeosciences, 12, 5415–5428,Short summary
We highlight the proxy potential of foraminiferal Mn/Ca determined by secondary ion mass spectrometry and flow-through inductively coupled plasma optical emission spectroscopy for recording changes in bottom-water oxygen conditions. Comparisons with Mn sediment bulk measurements from the same sediment core largely agree with the results. High foraminiferal Mn/Ca occurs in samples from times of high productivity export and corresponds with the benthic foraminiferal faunal composition.
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: TectonicsConstruction of the Ukrainian Carpathian wedge from low-temperature thermochronology and tectono-stratigraphic analysisAnalogue modelling of basin inversion: a review and future perspectivesInsights into the interaction of a shale with CO2The influence of crustal strength on rift geometry and development – Insights from 3D numerical modellingTectonostratigraphic evolution of the Slyne BasinControl of crustal strength, tectonic inheritance, and stretching/ shortening rates on crustal deformation and basin reactivation: insights from laboratory modelsLate 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 GermanyEarthquake ruptures and topography of the Chilean margin controlled by plate interface deformationLate Quaternary faulting in the southern Matese (Italy): implications for earthquake potential and slip rate variability in the southern ApenninesRare earth elements associated with carbonatite–alkaline complexes in western Rajasthan, India: exploration targeting at regional scaleStructural complexities and tectonic barriers controlling recent seismic activity in the Pollino area (Calabria–Lucania, southern Italy) – constraints from stress inversion and 3D fault model buildingThe Mid Atlantic Appalachian Orogen Traverse: a comparison of virtual and on-location field-based capstone experiencesChronology 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 tomographyGround-penetrating radar signature of Quaternary faulting: a study from the Mt. Pollino region, southern Apennines, ItalyU–Pb dating of middle Eocene–Pliocene multiple tectonic pulses in the Alpine forelandDetrital 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 IraqThe Subhercynian Basin: an example of an intraplate foreland basin due to a broken plateLate to post-Variscan basement segmentation and differential exhumation along the SW Bohemian Massif, central EuropeHolocene surface-rupturing earthquakes on the Dinaric Fault System, western SloveniaContribution of gravity gliding in salt-bearing rift basins – a new experimental setup for simulating salt tectonics under the influence of sub-salt extension and tiltingThick- and thin-skinned basin inversion in the Danish Central Graben, North Sea – the role of deep evaporites and basement kinematicsComplex rift patterns, a result of interacting crustal and mantle weaknesses, or multiphase rifting? Insights from analogue modelsInteractions of plutons and detachments: a comparison of Aegean and Tyrrhenian granitoidsInsights from elastic thermobarometry into exhumation of high-pressure metamorphic rocks from Syros, GreeceStress rotation – impact and interaction of rock stiffness and faultsLate Cretaceous to Paleogene exhumation in central Europe – localized inversion vs. large-scale domal upliftKinematics and extent of the Piemont–Liguria Basin – implications for subduction processes in the AlpsEffects of basal drag on subduction dynamics from 2D numerical modelsHydrocarbon accumulation in basins with multiple phases of extension and inversion: examples from the Western Desert (Egypt) and the western Black SeaLong-wavelength late-Miocene thrusting in the north Alpine foreland: implications for late orogenic processesA reconstruction of Iberia accounting for Western Tethys–North Atlantic kinematics since the late-Permian–TriassicThe enigmatic curvature of Central Iberia and its puzzling kinematicsControl of 3-D tectonic inheritance on fold-and-thrust belts: insights from 3-D numerical models and application to the Helvetic nappe systemPlio-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 earthquakesSeismic reflection data reveal the 3D structure of the newly discovered Exmouth Dyke Swarm, offshore NW AustraliaUncertainties in break-up markers along the Iberia–Newfoundland margins illustrated by new seismic dataTectonic inheritance controls nappe detachment, transport and stacking in the Helvetic nappe system, Switzerland: insights from thermomechanical simulationsCan subduction initiation at a transform fault be spontaneous?The Geodynamic World Builder: a solution for complex initial conditions in numerical modelingFrom mapped faults to fault-length earthquake magnitude (FLEM): a test on Italy with methodological implicationsLithosphere tearing along STEP faults and synkinematic formation of lherzolite and wehrlite in the shallow subcontinental mantleA systematic comparison of experimental set-ups for modelling extensional tectonicsImproving subduction interface implementation in dynamic numerical modelsThe Bortoluzzi Mud Volcano (Ionian Sea, Italy) and its potential for tracking the seismic cycle of active faultsThe Ulakhan fault surface rupture and the seismicity of the Okhotsk–North America plate boundaryControl of increased sedimentation on orogenic fold-and-thrust belt structure – insights into the evolution of the Western AlpsAnticlockwise 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
Marion Roger, Arjan de Leeuw, Peter van der Beek, Laurent Husson, Edward R. Sobel, Johannes Glodny, and Matthias Bernet
Solid Earth, 14, 153–179,Short summary
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,Short summary
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,Short summary
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.
Thomas Phillips, John Naliboff, Ken McCaffrey, Sophie Pan, Jeroen van Hunen, and Malte Froemchen
Continental crust comprises bodies of varying strength, formed through numerous tectonic events. When subject to extension these areas produce varying rift and fault systems. We use 3D models to examine how rifts form above ‘strong’ and ‘weak’ areas 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.
Conor M. O'Sullivan, Conrad J. Childs, Muhammad M. Saqab, John J. Walsh, and Patrick M. Shannon
Solid Earth, 13, 1649–1671,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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,Short summary
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.
Solid Earth, 12, 1287–1307,Short summary
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,
Eline Le Breton, Sascha Brune, Kamil Ustaszewski, Sabin Zahirovic, Maria Seton, and R. Dietmar Müller
Solid Earth, 12, 885–913,Short summary
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,Short summary
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,Short summary
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,Short summary
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.
Paul Angrand, Frédéric Mouthereau, Emmanuel Masini, and Riccardo Asti
Solid Earth, 11, 1313–1332,Short summary
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 preserved the propagation of these two rift systems well. We use geological evidence and pre-existing kinematic models to propose a coherent kinematic 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.
Daniel Pastor-Galán, Gabriel Gutiérrez-Alonso, and Arlo B. Weil
Solid Earth, 11, 1247–1273,Short summary
Pangea was assembled during Devonian to early Permian times and resulted in a large-scale and winding orogeny that today transects Europe, northwestern 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 paid to structural and paleomagnetic studies.
Richard Spitz, Arthur Bauville, Jean-Luc Epard, Boris J. P. Kaus, Anton A. Popov, and Stefan M. Schmalholz
Solid Earth, 11, 999–1026,Short summary
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,Short summary
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,Short summary
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,Short summary
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.
Annabel Causer, Lucía Pérez-Díaz, Jürgen Adam, and Graeme Eagles
Solid Earth, 11, 397–417,Short summary
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.
Dániel Kiss, Thibault Duretz, and Stefan Markus Schmalholz
Solid Earth, 11, 287–305,Short summary
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,Short summary
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,Short summary
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,Short summary
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,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.
Frank Zwaan, Guido Schreurs, and Susanne J. H. Buiter
Solid Earth, 10, 1063–1097,Short summary
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,Short summary
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,Short summary
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.
David Hindle, Boris Sedov, Susanne Lindauer, and Kevin Mackey
Solid Earth, 10, 561–580,Short summary
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,Short summary
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,Short summary
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.
Aleinikoff, J. N., Schenck, W. S., Plank, M. O., Srogi, L. A., Fanning, C. M., Kamo, S. L., and Bosbyshell, H.: Deciphering igneous and metamorphic events in high-grade rocks of the Wilmington complex, Delaware: Morphology, cathodoluminescence and backscattered electron zoning, and SHRIMP U-Pb geochronology of zircon and monazite, Bull. Geol. Soc. Am., 118, 39–64, https://doi.org/10.1130/B25659.1, 2006.
Ayers, J. C., Miller, C., Gorisch, B., and Milleman, J.: Textural development of monazite during high-grade metamorphism: Hydrothermal growth kinetics, with implications for U,Th-Pb geochronology, Am. Mineral., 84, 1766–1780, https://doi.org/10.2138/am-1999-11-1206, 1999.
Bergemann, C. A., Gnos, E., Berger, A., Whitehouse, M., Mullis, J., Wehrens, P., Pettke, T., and Janots, E.: Th-Pb ion probe dating of zoned hydrothermal monazite and its implications for repeated shear zone activity: An example from the Central Alps, Switzerland, Tectonics, 36, 671–689, https://doi.org/10.1002/2016TC004407, 2017.
Bergemann, C. A., Gnos, E., Berger, A., Whitehouse, M. J., Mullis, J., Walter, F., and Bojar, H. P.: Constraining long-term fault activity in the brittle domain through in situ dating of hydrothermal monazite, Terra Nov., 30, 440–446, https://doi.org/10.1111/ter.12360, 2018.
Bergemann, C. A., Gnos, E., and Whitehouse, M. J.: Insights into the tectonic history of the Western Alps through dating of fissure monazite in the Mont Blanc and Aiguilles Rouges Massifs, Tectonophysics, 750, 203–212, https://doi.org/10.1016/j.tecto.2018.11.013, 2019.
Bergemann, C. A., Gnos, E., Berger, A., Janots, E., and Whitehouse, M. J.: Dating tectonic activity in the Lepontine Dome and Rhone-Simplon Fault regions through hydrothermal monazite-(Ce), Solid Earth, 11, 199–222, https://doi.org/10.5194/se-11-199-2020, 2020.
Berger, A., Gnos, E., Janots, E., Whitehouse, M., Soom, M., Frei, R., and Waight, T. E.: Dating brittle tectonic movements with cleft monazite: Fluid-rock interaction and formation of REE minerals, Tectonics, 32, 1176–1189, https://doi.org/10.1002/tect.20071, 2013.
Bernet, M.: A field-based estimate of the zircon fission-track closure temperature, Chem. Geol., 259, 181–189, https://doi.org/10.1016/j.chemgeo.2008.10.043, 2009.
Bernet, M. and Garver, J. I.: Fission-track analysis of detrital zircon, Rev. Mineral. Geochem., 58, 205–237, 2005.
Bertrand, A.: Exhuming the core of collisional orogens, the Tauern Window (Eastern-Alps), A geochronological, modelling and structural study, PhD tesis, Freie Univ. Berlin, 2014.
Bertrand, A., Rosenberg, C., and Garcia, S.: Fault slip analysis and late exhumation of the Tauern Window, Eastern Alps, Tectonophysics, 649, 1–17, https://doi.org/10.1016/j.tecto.2015.01.002, 2015.
Bertrand, A., Rosenberg, C., Rabaute, A., Herman, F., and Fügenschuh, B.: Exhumation mechanisms of the Tauern Window (Eastern Alps) inferred from apatite and zircon fission track thermochronology, Tectonics, 36, 207–228, https://doi.org/10.1002/2016TC004133, 2017.
Blanckenburg, F. v., Villa, I. M., Baur, H., Morteani, G., and Steiger, R. H.: Time calibration of a PT-path from the Western Tauern Window, Eastern Alps: the problem of closure temperatures, Contrib. Mineral. Petrol., 101, 1–11, https://doi.org/10.1007/BF00387196, 1989.
Cherniak, D. J., Watson, E. B., Grove, M., and Harrison, T. M.: Pb diffusion in monazite: A combined RBS/SIMS study, Geochim. Cosmochim. Ac., 68, 829–840, https://doi.org/10.1016/j.gca.2003.07.012, 2004.
Cole, J., Hacker, B., Ratschbacher, L., Dolan, J., Seward, G., Frost, E., and Frank, W.: Localized ductile shear below the seismogenic zone: Structural analysis of an exhumed strike-slip fault, Austrian Alps, J. Geophys. Res.-Sol. Ea., 112, 1–15, https://doi.org/10.1029/2007JB004975, 2007.
Coyle, D. A.: The application of apatite fission-track analysis to problem in tectonics, PhD thesis, La Trobe Univ. Bundoora, Victoria, Australia, 1994.
Di Fiore, G.: Evoluzione Morfotettonica delle aree alpine “Sempione” e “Brennero” attraverso studi termocronologici di bassa temperatura, PhD thesis, Università di Bologna, 2013.
Dunkl, I., Frisch, W., and Grundmann, G.: Zircon fission-track thermochronology of the south-eastern part of the TW and the adjacent Austroalpine margin, Eastern Alps, Eclogae Geol. Helv., 96, 209–217, 2003.
Favaro, S., Handy, M. R., Scharf, A., and Schuster, R.: Changing patterns of exhumation and denudation in front of an advancing crustal indenter, Tauern Window (Eastern Alps), Tectonics, 36, 1053–1071, https://doi.org/10.1002/2016TC004448, 2017.
Fitz-Diaz, E., Cottle, J. M., Vidal-Reyes, M. I., and van der Pluijm, B.: In situ Th/Pb dating of monazite in fibrous veins: Direct dating of veins and deformation in the shallow upper crust of the Mexican Orogen, J. Struct. Geol., 124, 136–142, https://doi.org/10.1016/j.jsg.2019.04.004, 2019.
Foeken, J. P. T., Persano, C., Stuart, F. M., and ter Voorde, M.: Role of topography in isotherm perturbation: Apatite and fission track results from the Malta tunnel, Tauern Window, Austria, Tectonics, 26, https://doi.org/10.1029/2006TC002049, 2007.
Fügenschuh, B., Seward, D., and Mancktelow, N.: Exhumation in a convergent orogen: the western Tauern Window, Terra Nov., 9, 213–217, https://doi.org/10.1111/j.1365-3121.1997.tb00015.x, 1997.
Gardés, E., Jaoul, O., Montel, J. M., Seydoux-Guillaume, A. M., and Wirth, R.: Pb diffusion in monazite: An experimental study of < = > 2Nd3+ interdiffusion, Geochim. Cosmochim. Ac., 70, 2325–2336, https://doi.org/10.1016/j.gca.2006.01.018, 2006.
Gardés, E., Montel, J. M., Seydoux-Guillaume, A. M., and Wirth, R.: Pb diffusion in monazite: New constraints from the experimental study of Pb2+ < = > Ca2+ interdiffusion, Geochim. Cosmochim. Ac., 71, 4036–4043, https://doi.org/10.1016/j.gca.2007.06.036, 2007.
Gasquet, D., Bertrand, J. M., Paquette, J. L., Lehmann, J., Ratzov, G., Ascenção De Guedes, R. A., Tiepolo, M., Boullier, A. M., Scaillet, S., and Nomade, S.: Miocene to Messinian deformation and hydrothermal activity in a pre-Alpine basement massif of the French western Alps: New U-Th-Pb and argon ages from the Lauzière massif, Bull. Soc. Geol. Fr., 181, 227–241, https://doi.org/10.2113/gssgfbull.181.3.227, 2010.
Glodny, J., Ring, U., and Kühn, A.: Coeval high-pressure metamorphism, thrusting, strike-slip, and extensional shearing in the Tauern Window, Eastern Alps, Tectonics, 27, https://doi.org/10.1029/2007TC002193, 2008.
Gnos, E., Janots, E., Berger, A., Whitehouse, M., Walter, F., Pettke, T., and Bergemann, C. A.: Age of cleft monazites in the eastern Tauern Window: constraints on crystallization conditions of hydrothermal monazite, Swiss J. Geosci., 108, 55–74, https://doi.org/10.1007/s00015-015-0178-z, 2015.
Grand'Homme, A., Janots, E., Bosse, V., Seydoux-Guillaume, A. M., and Ascenção De Guedes, R. A.: Interpretation of U-Th-Pb in-situ ages of hydrothermal monazite-(Ce) and xenotime-(Y): evidence from a large-scale regional study in clefts from the western alps, Mineral. Petrol., 110, 787–807, https://doi.org/10.1007/s00710-016-0451-5, 2016a.
Grand'Homme, A., Janots, E., Seydoux-Guillaume, A. M., Guillaume, D., Bosse, V., and Magnin, V.: Partial resetting of the U-Th-Pb systems in experimentally altered monazite: Nanoscale evidence of incomplete replacement, Geology, 44, 431–434, https://doi.org/10.1130/G37770.1, 2016b.
Grand'Homme, A., Janots, E., Seydoux-Guillaume, A. M., Guillaume, D., Magnin, V., Hövelmann, J., Höschen, C., and Boiron, M. C.: Mass transport and fractionation during monazite alteration by anisotropic replacement, Chem. Geol., 484, 51–68, https://doi.org/10.1016/j.chemgeo.2017.10.008, 2018.
Grundmann, G. and Morteani, G.: The young uplift and thermal history of the central Eastern Alps (Austria/Italy), evidence from apatite fission track ages, Jahrb. Geol. Bundesanst, 128, 197–216, 1985.
Hejl, E.: “Cold spots” during the Cenozoic evolution of the Eastern Alps: Thermochronological interpretation of apatite fission-track data, Tectonophysics, 272, 159–173, https://doi.org/10.1016/S0040-1951(96)00256-9, 1997.
Janots, E., Berger, A., Gnos, E., Whitehouse, M., Lewin, E., and Pettke, T.: Constraints on fluid evolution during metamorphism from U–Th–Pb systematics in Alpine hydrothermal monazite, Chem. Geol., 326, 61–71, 2012.
Janots, E., Grand'Homme, A., Bernet, M., Guillaume, D., Gnos, E., Boiron, M.-C., Rossi, M., Seydoux-Guillaume, A.-M., and De Ascenção Guedes, R.: Geochronological and thermometric evidence of unusually hot fluids in an Alpine fissure of Lauzière granite (Belledonne, Western Alps), Solid Earth, 10, 211–223, https://doi.org/10.5194/se-10-211-2019, 2019.
Kurz, W. and Neubauer, F.: Deformation partitioning during updoming of the Sonnblick area in the Tauern Window (Eastern Alps, Austria), J. Struct. Geol., 18, 1327–1337, https://doi.org/10.1016/S0191-8141(96)00057-0, 1996.
Ludwig, K. R.: User's manual for a geochronological toolkit for Microsoft Excel (Isoplot/Ex version 3.0), Berkeley Geochronol. Cent. Spec. Publ., 4, 1–70, 2003.
Luth, S. W. and Willingshofer, E.: Mapping of the post-collisional cooling history of the Eastern Alps, Swiss J. Geosci., 101, 207–223, https://doi.org/10.1007/s00015-008-1294-9, 2008.
Mancktelow, N. S., Stöckli, D. F., Grollimund, B., Müller, W., Fügenschuh, B., Viola, G., Seward, D., and Villa, I. M.: The DAV and Pediatriatic fault systems in the Eastern Alps South of the Tauern window, Int. J. Earth Sci., 90, 593–622, https://doi.org/10.1007/s005310000190, 2001.
Most, P.: Late Alpine cooling histories of tectonic blocks along the central part of the Transalp-Traverse (Inntal-Gadertal): Constraints from geochronology, PhD thesis, University of Tübingen, p. 97, 2003.
Mullis, J.: P-T-t path of quartz formation in extensional veins of the Central Alps, Schweiz. Miner. Petrogr. Mitt, 76, 159–164, https://doi.org/10.5169/seals-57694, 1996.
Mullis, J., Dubessy, J., Poty, B., and O'Neil, J.: Fluid regimes during late stages of a continental collision: physical, chemical, and stable isotope measurements of fluid inclusions in fissure quartz from a geotraverse through the Central Alps, Switzerland, Geochim. Cosmochim. Ac., 58, 2239–2267, 1994.
Pleuger, J., Mancktelow, N., Zwingmann, H., and Manser, M.: K-Ar dating of synkinematic clay gouges from Neoalpine faults of the Central, Western and Eastern Alps, Tectonophysics, 550, 1–16, https://doi.org/10.1016/j.tecto.2012.05.001, 2012.
Pollington, A. D. and Baxter, E. F.: High resolution Sm-Nd garnet geochronology reveals the uneven pace of tectonometamorphic processes, Earth Planet. Sc. Lett., 293, 63–71, https://doi.org/10.1016/j.epsl.2010.02.019, 2010.
Pollington, A. D. and Baxter, E. F.: High precision microsampling and preparation of zoned garnet porphyroblasts for Sm-Nd geochronology, Chem. Geol., 281, 270–282, https://doi.org/10.1016/j.chemgeo.2010.12.014, 2011.
Pomella, H., Klötzli, U., Scholger, R., Stipp, M., and Fügenschuh, B.: The Northern Giudicarie and the Meran-Mauls fault (Alps, Northern Italy) in the light of new paleomagnetic and geochronological data from boudinaged Eo-/Oligocene tonalites, Int. J. Earth Sci., 100, 1827–1850, https://doi.org/10.1007/s00531-010-0612-4, 2011.
Putnis, A.: Mineral Replacement Reactions, Rev. Miner. Geochem., 70, 87–124, https://doi.org/10.2138/rmg.2009.70.3, 2009.
Reiners, P. W.: Zircon Thermochronometry, in: Reviews in Mineralogy and Geochemistry, vol. 58, 151–179, 2005.
Ricchi, E., Bergemann, C. A., Gnos, E., Berger, A., Rubatto, D., and Whitehouse, M. J.: Constraining deformation phases in the Aar Massif and the Gotthard Nappe (Switzerland) using Th-Pb crystallization ages of fissure monazite-(Ce), Lithos, 342/343, 223–238, https://doi.org/10.1016/j.lithos.2019.04.014, 2019.
Rosenberg, C. L. and Berger, A.: On the causes and modes of exhumation and lateral growth of the Alps, Tectonics, 28, https://doi.org/10.1029/2008TC002442, 2009.
Rosenberg, C. L. and Garcia, S.: Estimating displacement along the Brenner Fault and orogen-parallel extension in the Eastern Alps, Int. J. Earth Sci., 100, 1129–1145, https://doi.org/10.1007/s00531-011-0645-3, 2011.
Rosenberg, C. L. and Schneider, S.: The western termination of the SEMP Fault (eastern Alps) and its bearing on the exhumation of the Tauern Window, Geol. Soc. Lond. Spec. Publ., 298, 197–218, 2008.
Rosenberg, C. L., Schneider, S., Scharf, A., Bertrand, A., Hammerschmidt, K., Rabaute, A., and Brun, J. P.: Relating collisional kinematics to exhumation processes in the Eastern Alps, Earth-Sci. Rev., 176, 311–344, https://doi.org/10.1016/j.earscirev.2017.10.013, 2018.
Scharf, A., Handy, M. R., Favaro, S., Schmid, S. M., and Bertrand, A.: Modes of orogen-parallel stretching and extensional exhumation in response to microplate indentation and roll-back subduction (Tauern Window, Eastern Alps), Int. J. Earth Sci., 102, 1627–1654, https://doi.org/10.1007/s00531-013-0894-4, 2013.
Schmid, S. M., Fügenschuh, B., Kissling, E., and Schuster, R.: Tectonic map and overall architecture of the Alpine orogen, Eclogae Geol. Helv., 97, 93–117, https://doi.org/10.1007/s00015-004-1113-x, 2004.
Schmid, S. M., Scharf, A., Handy, M. R., and Rosenberg, C. L.: The Tauern Window (Eastern Alps, Austria): a new tectonic map, with cross-sections and a tectonometamorphic synthesis, Swiss J. Geosci., 106, 1–32, https://doi.org/10.1007/s00015-013-0123-y, 2013.
Schneider, S., Hammerschmidt, K., and Rosenberg, C. L.: Dating the longevity of ductile shear zones: Insight from 40Ar∕39Ar in situ analyses, Earth Planet. Sc. Lett., 369–370, 43–58, https://doi.org/10.1016/j.epsl.2013.03.002, 2013.
Selverstone, J.: Evidence for east-west crustal extension in the Eastern Alps: Implications for the unroofing history of the Tauern Window, Tectonics, 7, 87–105, 1988.
Selverstone, J., Spear, F. S., Franz, G., and Morteani, G.: High-pressure metamorphism in the SW tauern window, Austria: P-T paths from hornblende-kyanite-staurolite schists, J. Petrol., 25, 501–531, https://doi.org/10.1093/petrology/25.2.501, 1984.
Selverstone, J., Morteani, G., and Staude J.-M: Fluid channelling during ductile shearing: transformation of granodiorite into aluminous schist in the Tauern Window, Eastern Alps, J. Metamorph. Geol., 9, 419–431, 1991.
Seydoux-Guillaume, A. M., Montel, J. M., Bingen, B., Bosse, V., de Parseval, P., Paquette, J. L., Janots, E., and Wirth, R.: Low-temperature alteration of monazite: Fluid mediated coupled dissolution-precipitation, irradiation damage, and disturbance of the U-Pb and Th-Pb chronometers, Chem. Geol., 330/331, 140–158, https://doi.org/10.1016/j.chemgeo.2012.07.031, 2012.
Sharp, Z. D., Masson, H., and Lucchini, R.: Stable isotope geochemistry and formation mechanisms of quartz veins; extreme paleoaltitudes of the Central Alps in the Neogene, Am. J. Sci., 305, 187–219, 2005.
Spencer, C. J., Kirkland, C. L., and Taylor, R. J. M.: Geoscience Frontiers Strategies towards statistically robust interpretations of in situ U e Pb zircon geochronology, Geosci. Front., 7, 581–589, https://doi.org/10.1016/j.gsf.2015.11.006, 2016.
Stacey, J. S. and Kramers, J. D.: Approximation of terrestrial lead isotope evolution by a two-staged model, Earth Planet. Sc. Lett., 26, 207–221, 1975.
Staufenberg, H.: Apatite fission-track evidence for postmetamorphic uplift and cooling history of the Eastern Tauern Window and the surrounding Austroalpine (Central Eastern Alps, Austria), Jahrb. Geol. Bundesanst, 130, 571–586, 1987.
Steenken, A., Siegesmund, S., Heinrichs, T., and Fügenschuh, B.: Cooling and exhumation of the Rieserferner Pluton (Eastern Alps, Italy/Austria), Int. J. Earth Sci., 91, 799–817, https://doi.org/10.1007/s00531-002-0260-4, 2002.
Stöckhert, B., Brix, M. R., Kleinschrodt, R., Hurford, A. J., and Wirth, R.: Thermochronometry and microstructures of quartz-a comparison with experimental flow laws and predictions on the temperature of the brittle-plastic transition, J. Struct. Geol., 21, 351–369, https://doi.org/10.1016/S0191-8141(98)00114-X, 1999.
Urbanek, C., Frank, W., Grasemann, B., and Decker, K.: Eoalpine versus Tertiary deformation: dating of heterogeneously partitioned strain (Tauern Window, Austria), in Abstract volume, edited by: PanGeo Austria, 183–184, 2002.
Viola, G., Mancktelow, N. S., and Seward, D.: Late oligocene-neogene evolution of Europe-Adria collision: New structural and geochronological evidence from the Giudicarie fault system (Italian Eastern Alps), Tectonics, 20, 999–1020, https://doi.org/10.1029/2001TC900021, 2001.
Wölfler, A., Dekant, C., Danišík, M., Kurz, W., Dunkl, I., Putiš, M., and Frisch, W.: Late stage differential exhumation of crustal blocks in the central Eastern Alps: Evidence from fission track and (U-Th)/He thermochronology, Terra Nov., 20, 378–384, https://doi.org/10.1111/j.1365-3121.2008.00831.x, 2008.
Wölfler, A., Stüwe, K., Danišík, M., and Evans, N. J.: Low temperature thermochronology in the Eastern Alps: Implications for structural and topographic evolution, Tectonophysics, 541, 1–18, https://doi.org/10.1016/j.tecto.2012.03.016, 2012.
Yamada, R., Tagami, T., Nishimura, S., and Ito, H.: Annealing kinetics of fission tracks in zircon?: an experimental study, Chem. Geol., 122, 249–258, 1995.
- Full-text XML
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.
This study investigates Cenozoic deformation during cooling and exhumation of the Tauern...