A5072945243- Geological and Geophysical Studies Worldwide
- Geological and Geochemical Analysis
- Geological formations and processes
- earthquake and tectonic studies
- Geology and Paleoclimatology Research
- High-pressure geophysics and materials
- Geological and Geophysical Studies
- Hydrocarbon exploration and reservoir analysis
- Archaeological and Historical Studies
- Seismic Imaging and Inversion Techniques
- Geological Studies and Exploration
- Mediterranean and Iberian flora and fauna
- Geological and Tectonic Studies in Latin America
- Archaeological and Geological Studies
- Paleontology and Stratigraphy of Fossils
- Geochemistry and Geologic Mapping
- Landslides and related hazards
- Seismic Waves and Analysis
- Geological Formations and Processes Exploration
- Methane Hydrates and Related Phenomena
- Reservoir Engineering and Simulation Methods
- Evolution and Paleontology Studies
- Seismology and Earthquake Studies
- Urbanism, Landscape, and Tourism Studies
- Streptococcal Infections and Treatments
Institut des Sciences de la Terre
2020-2024
Université Gustave Eiffel
2020-2024
Université Savoie Mont Blanc
2021-2024
BPM Consulting (Slovakia)
2024
Institut polytechnique de Grenoble
2023
Université Grenoble Alpes
2020-2023
Total (France)
2014-2020
Université de Strasbourg
2009-2014
Centre National de la Recherche Scientifique
2010-2014
Institut de physique du globe de Paris
2010-2013
In this paper we describe the tectonosedimentary evolution and its subsequent inversion of a basin that underwent extreme crustal thinning in transtensional setting ahead propagating ocean western Pyrenees. The Labourd‐Mauléon area situated Pyrenees, at termination V‐shaped Bay Biscay, is an ideal natural laboratory to study how such complex basins evolve time space. Because mild during Pyrenean compression, rift structures their relations basement rocks sediments are exposed can be directly...
The Bay of Biscay and the Pyrenees correspond to a Lower Cretaceous rift system including both oceanic hyperextended domains. transition from preserved domains in West their complete inversion East enables us study progressive reactivation system. We use seismic interpretation, gravity inversion, field mapping identify map former subsequent reactivation. propose new sections across illustrating integration into orogen. This aims provide insights on formation systems discuss role during Two...
Estimating shortening in collision belts is critical to reconstruct past plate motions. Balanced cross-section techniques are efficient external domains but lack resolution the hinterland. The role and original extent of continental margins during earliest stages convergence debated. Here we combine existing new sequentially restored cross sections central Pyrenees, with Iberia/Europe (IB/EU) kinematic reconstructions apatite fission track, zircon (U-Th)/He, U/Pb ages discuss higher lower...
Studies conducted in present‐day magma‐poor rifted margins reveal that the transition from weakly thinned continental crust (∼30 km) proximal to hyper‐extended (≤10 distal occurs within a narrow zone, referred as necking zone. We have identified relics of zone and adjacent margin Campo, Grosina Bernina units fossil Alpine Tethys investigated deformation sedimentary processes associated with extreme crustal thinning during rifting. Within basement rocks we show that: (1) represents pre‐rift...
Abstract. An increasing number of field examples in mountain belts show that the formation passive margins during extreme continent thinning may occur under conditions high to very thermal gradient beneath a thin cover syn-rift sediments. Orogenic resulting from tectonic inversion distal and regions exhumed continental mantle exhibit high-temperature, low-pressure (HT-LP) metamorphism coeval syn-extensional, ductile deformation. Recent studies have shown northern flank Pyrenean belt,...
Abstract This study focuses on the assessment of stratigraphic architecture proximal and distal Jurassic Alpine Tethys rifted margins. The aim was to reconcile major observations performed in Alps through time with what is observed present‐day magma‐poor margins reflect two evolutionary phases rifting involving different structures isostatic evolutions leading records. formed from Upper Triassic Pliensbachian times resulted formation classical half graben basins. Rift evolution changed...
We exploit the data from five seismic transects deployed across Pyrenees to characterize deep architecture of this collisional orogen. map main interfaces beneath each transect by depth migration P-to-S converted phases. The migrated sections, combined with results recent tomographic studies and maps Bouguer isostatic anomalies, provide a coherent crustal-scale picture belt. In Western Pyrenees, North Pyrenean Zone, continuous band high density/velocity material is found at very shallow...
ABSTRACT We describe the tectono‐sedimentary evolution of a Middle Jurassic, rift‐related supra‐detachment basin ancient Alpine Tethys margin exposed in Central Alps (SE Switzerland). Based on pre‐Alpine restoration, we demonstrate that rift developed over detachment system is traced more than 40 km from thinned continental crust to exhumed mantle. The faults are overlain by extensional allochthons consisting upper crustal rocks and pre‐rift sediments up several kilometres long hundreds...
Abstract We use the Bay of Biscay and Western Pyrenees as a natural laboratory to develop apply an approach characterize identify distinctive rifted margin domains in offshore onshore settings. The offer access seismically imaged, drilled exposed parts one same hyperextended rift system. Offshore, we gravity inversion flexural backstripping techniques combined with seismic interpretation provide estimates accommodation space, crustal thickness lithosphere thinning. Onshore, focus on key...
Abstract We summarize here observations from the South Atlantic Angola–Gabon rifted margin. Our study was based on interpretation of a selection deep penetration depth-migrated seismic reflection profiles. describe large-scale dip architecture margin under five structural domains (proximal, necking, distal, outer and oceanic) list their characteristics. investigated necking domain further discuss distal as combination hyper-extended crust possible exhumed mantle. The mapping characterization...
Abstract. The western European kinematic evolution results from the opening of Neotethys and Atlantic oceans since late Paleozoic Mesozoic. Geological evidence shows that Iberian domain recorded propagation these two oceanic systems well is therefore a key to significantly advancing our understanding regional plate reconstructions. late-Permian–Triassic rift basins have accommodated extension, but this tectonic stage often neglected in most models, leading overestimation movements between...
The present-day tectonic setting of the Western Mediterranean region, from Pyrénées to Betics and Alps Atlas, results a complex 3-D geodynamic evolution involving interactions between Africa, Eurasia Iberia plates asthenospheric mantle dynamics underneath. In this paper, we review main events recorded in region since Early Cretaceous discuss respective effects far-field near-field contributions, order unravel origin forces controlling crustal deformation. contributions mantle-scale,...
Abstract The architecture of the Pyrenean‐Cantabrian belt results from inversion a series former Cretaceous rift basins. A HT‐LP metamorphic event dated at 105 to 85 Ma ago is commonly associated with an Albo‐Cenomanian episode hyperextension continental crust. This metamorphism well known in eastern Basque‐Cantabrian Basin within Nappe des Marbres Unit (NMU) that preserved intense compressional deformation during Pyrenean orogeny. Based on structural study scale and dense sampling for T...
Abstract We investigate the thermal and structural evolution of asymmetric rifted margin using numerical modeling geological observations derived from Western Pyrenees. Our model provides a self‐consistent physical top basement heat flow during rifting. The shows pronounced asymmetry that is caused by migration rift center toward upper plate. same process creates diachronism for record maximum temperatures ( T max ) in basal sequences. Mauléon‐Arzacq basin (W‐Pyrenees) corresponds to former...
A long-standing challenge in tectonics is to evaluate the role of inheritance and define initial conditions a geodynamic system, which are prerequisites understand model its evolution with some accuracy. Here we revisit concept “inheritance” by distinguishing “interface shape inheritance”, includes transient thermal state gravitational potential energy, “persisting encompasses long-lasting structural compositional inheritance. This new approach allows us investigate, at each stage Wilson...
Serpentinization-sourced H2 has become a promising source of decarbonated energy. It can be generated in fiver tectonic settings, namely: (1) intra-craton (2) divergent settings such as hyperextended rifts, ocean continent transitions and mid ridges, (3) subduction systems, (4) obduction, (5) rift-inverted orogens. Most recently, many studies have been focusing on parts the H2-system, i.e., kitchen, plumbing system, reservoir, cap rock trapping preservation mechanisms or detection leaking...
The long-term Pressure-Temperature-time-deformation ( P-T-t-d ) evolution of the internal zones orogens results from complex interactions between subducting lithosphere, overriding plate and intervening asthenosphere. 2-D numerical models successfully reproduce natural P-T-t - d paths, but most are non-cylindrical situation is far more due to 3-D pre-orogenic inheritance subduction dynamics. Mediterranean intrinsically non-cylindrical. Their geometry shape Eurasian African margins before...