Vincent Strak
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Geodynamics of Long‐Term Indian Continental Subduction and Indentation at the India‐Eurasia Collision Zone Open
The India‐Eurasia convergence is a long‐term, ongoing process despite the continental collision and associated velocity reduction from ∼15 to 20 cm/yr in the Late Cretaceous‐earliest Eocene to ∼4–5 cm/yr (since ∼40 Ma). Previous studies th…
Geodynamic models of Indian continental flat slab subduction with implications for the topography of the Himalaya-Tibet region Open
The slab structure and high elevation of the Himalaya-Tibet region and their underlying mechanisms have been widely discussed. Many studies interpret a flat slab segment of Indian continental lithosphere located below the overriding plate,…
Geodynamic models of Indian continental flat slab subduction with implications for the topography of Himalaya-Tibet region Open
Topography data and topview photos
Analogue modelling of the Ainsa oblique zone in the Southern Central Pyrenees, Spain Open
The Pyrenees are a collisional orogen striking WNW-ESE. However, in the Ainsa oblique zone in the south-central part of the Pyrenees, faults and folds rotate to ∼N–S over a westward thinning evaporitic layer. The influence of lateral chang…
Protracted continental subduction, indentation and collisional boundary migration coupled with adjacent oceanic slab-rollback and slab detachment in large-scale buoyancy-driven 3D whole-mantle scale numerical models of subduction-and-collision. Open
Continental collision zones form at convergent plate boundaries after negatively buoyant oceanic lithosphere subducts entirely into the Earth's mantle, whereafter collision ensues, and colliding continents are sutured together. In models o…
Subduction invasion polarity switch (SIPS): A new mechanism of subduction initiation, with an application to the Scotia Sea region Open
The initiation of subduction remains an enigmatic process and a variety of conceptual models has been proposed to explain such initiation. Conceptual models have been tested with geodynamic models and have been applied to various subductio…
Subduction invasion polarity switch from the Pacific to the Atlantic Ocean: A new geodynamic model of subduction initiation based on the Scotia Sea region Open
Subduction zones and their associated slabs are the main drivers of plate tectonics and mantle flow, but how these zones initiate remains enigmatic. In the Scotia Sea region, subduction started in the Late Cretaceous/Early Cenozoic in a pr…
Sustained indentation in 2-D models of continental collision involving whole mantle subduction Open
SUMMARY Continental collision zones form at convergent plate boundaries after the negatively buoyant oceanic lithosphere subducts entirely into the Earth’s mantle. Consequently, orogenesis commences, and the colliding continents are suture…
Convergence at continental collision zones: Insights from long-term 2D geodynamic models buoyancy-driven subduction and collision. Open
Continental collision succeeds long term subduction of oceanic lithosphere into the earth's mantle whereby the negative buoyancy of the downgoing oceanic lithosphere (slab) provides the principal driving force for plate motions. Previous s…
Geodynamics of long-term continental subduction and Indian indentation at the India-Eurasia collision zone Open
India-Eurasia convergence velocities have dropped significantly from ~18 cm/yr in the Late Cretaceous-earliest Eocene to ~4-5 cm/yr since ~50 Ma. The mechanisms of convergence deceleration, continued convergence since ~50 Ma, long-term con…
Overriding Plate Deformation and Topography During Slab Rollback and Slab Rollover: Insights From Subduction Experiments Open
Some subduction zones in nature show mainly overriding plate (OP) extension and low topography, and others show mainly shortening and elevated topography. Here we investigate how end‐member subduction modes (trench retreat with slab rollba…
Geodynamic models of Indian continental flat slab subduction with implications for the topography of Himalaya-Tibet region Open
Dataset for this study
Geodynamic models of short-lived, long-lived and periodic flat slab subduction Open
SUMMARY Flat slab subduction has been ascribed to a variety of causes, including subduction of buoyant ridges/plateaus and forced trench retreat. The former, however, has irregular spatial correlations with flat slabs, while the latter has…
Thermo‐Mechanical Numerical Modeling of the South American Subduction Zone: A Multi‐Parametric Investigation Open
The South American subduction zone is enigmatic due to its fast subducting plate consumption, strong oscillation in subducting plate velocity, and deep mantle subduction. A key to help understand these subduction zone characteristics is th…
Trench Advance in Collisional settings: insights from large scale 2D and 3D models Open
Continental collision, which leads to mountain building (e.g. Himalayas, Alps), has been under the geodynamic modelling lenses for the last few decades. Such processes subjected to physical and numerical investigations, in conjunction with…
Overriding plate deformation and topography during slab rollback and slab rollover: insights from subduction experiments Open
Overriding plate deformation (OPD) and topography vary at different subduction zones, with some subduction zones showing mainly overriding plate extension and low topography (e.g. Mariana, Tonga, Izu-Bonin subduction zones), while some sho…
3D mantle flow induced by retreating and advancing slabs: insights from analogue subduction models analysed with a tomographic Particle Image Velocimetry technique Open
Slab rollback-induced mantle flow in retreating subduction zones is known to have a significant geodynamic impact on Earth. The resulting quasi-toroidal circulation can deflect mantle plumes, transport geochemical signatures and have an up…
What is driving India-Asia convergence? Open
The Himalaya and the Tibetan plateau, the highest mountain range on Earth, have been growing continuously for the last 55 Myrs since India collided with Eurasia. The forces driving this protracted mountain building process are still not fu…
Short-lived, long-lived and periodic flat slab subduction Open
Flat slab subduction occurs when the subducted slab lies flat below the base of the overriding plate for up to several hundred kilometres before bending into the deeper mantle. It has been ascribed to a variety of causes, including subduct…
Overriding plate deformation and topography during slab rollback and slab rollover: insights from subduction experiments Open
Dataset for all experiment in this research, including: 1. Velocities (velocities_all.xlsx) during entire subduction process (for Figs. 3 and 4).2. Strain map data (12 dat files named as Exp0x_strain_xxx.dat) for Fig. 5.3. 24 dat files for…
Effect of Plate Length on Subduction Kinematics and Slab Geometry: Insights From Buoyancy‐Driven Analog Subduction Models Open
Subduction style is controlled by a variety of physical parameters. Here we investigate the effect of subducting plate length on subduction style using laboratory experiments of time‐evolving buoyancy‐driven subduction in 3‐D space. The in…
Response to comments from Anonymous Referee #2 Open
Comment The authors present a parametric modeling study that aims to determine the physical subduction parameters associated with South American subduction.Overall, the figures are text are clear, the descriptions of the model behaviors ar…
Supplementary material to "Thermo-mechanical numerical modelling of the South American subduction zone: a multi-parametric investigation" Open
In this Supplementary Information we present a figure showing the evolution of surficial velocities at a higher Rayleigh number of ~6 × 10 7 (Fig. S1) and a figure testing the spatial resolution of the models using the subducting plate and…
Thermo-mechanical numerical modelling of the South American subduction zone: a multi-parametric investigation Open
The South American subduction zone remains a topic of debate with long-lasting questions involving the origin of non-collisional orogeny and the effect of very large trench-parallel extent, slab sinking to great mantle depths, and aseismic…
Data for research on "Effect of plate length on subduction kinematics and slab geometry: Insights from buoyancy-driven analog subduction models". Open
Data for research on "Effect of plate length on subduction kinematics and slab geometry: Insights from buoyancy-driven analog subduction models".
Data for research on "Effect of plate length on subduction kinematics and slab geometry: Insights from buoyancy-driven analog subduction models". Open
Data for research on "Effect of plate length on subduction kinematics and slab geometry: Insights from buoyancy-driven analog subduction models".