Sylvain Calassou
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View article: Revisiting orogens during the OROGEN project: tectonic maturity, a key element to understand orogenic variability
Revisiting orogens during the OROGEN project: tectonic maturity, a key element to understand orogenic variability Open
By demonstrating that extensional inheritance plays a decisive role in the formation of orogens, recent studies have questioned the ability of a unique, complete Wilson cycle model to explain the diversity of collisional orogens. For 5 yea…
View article: Oblique rifting triggered by slab tearing: the case of the Alboran rifted margin in the eastern Betics
Oblique rifting triggered by slab tearing: the case of the Alboran rifted margin in the eastern Betics Open
The tectonic evolution of highly oblique continental margins that result from extension above lithospheric subduction–transform edge propagator (STEP) faults is poorly understood. Here, we investigate the case of the Alboran margin in the …
View article: Mantle Deformation Processes During the Rift‐To‐Drift Transition at Magma‐Poor Margins
Mantle Deformation Processes During the Rift‐To‐Drift Transition at Magma‐Poor Margins Open
The rift‐to‐drift transition at rifted margins is an area of active investigation due to an incomplete understanding of the spatial and temporal evolution of physical and chemical processes at the ocean‐continent transition (OCT). Deep str…
View article: Spatiotemporal Behavior of an Extremely Small Seismic Swarm in Pyrenean Foreland, France
Spatiotemporal Behavior of an Extremely Small Seismic Swarm in Pyrenean Foreland, France Open
During the large-N MAUPASACQ passive seismic experiment in the foreland of the western Pyrenees (southwest France), an unusual swarm-type seismic sequence was serendipitously recorded in a normally quiet area. Thanks to the density of the …
View article: Inverted Magma-rich Versus Magma-poor Rifted Margins: Implications for Early Orogenic Systems
Inverted Magma-rich Versus Magma-poor Rifted Margins: Implications for Early Orogenic Systems Open
Mountain belts are often the result of former inverted rifts or rifted margins. Up to date, relics of magma-poor rifted margins have been found in orogens allowing the investigation of how these margins reactivate and control the formation…
View article: Mantle Deformation Processes during the Rift-to-Drift Transition at Magma-Poor Margins
Mantle Deformation Processes during the Rift-to-Drift Transition at Magma-Poor Margins Open
The rift-to-drift transition at rifted margins is an area of active investigation due to unresolved issues of the ocean-continent transition (OCT). Deep structures that characterize modern OCTs are often difficult to identify by seismic ob…
View article: Processes related to the rift-to-collision transition in the eastern Betics as revealed by low-temperature thermochronology on magmatic, U-Pb dating and clumped isotopes on calcite-filled veins
Processes related to the rift-to-collision transition in the eastern Betics as revealed by low-temperature thermochronology on magmatic, U-Pb dating and clumped isotopes on calcite-filled veins Open
The Alboran margin in the Betics formed as a result of backarc crustal thinning oblique to the direction of the slab retreat. The history of sediment infill, subsidence and faulting reveals extension at upper crustal levels operated from t…
View article: Integrated Source to Sink palaeogeological maps at pluri-basins-scale, understandings and predictions
Integrated Source to Sink palaeogeological maps at pluri-basins-scale, understandings and predictions Open
The knowledge acquired on the exhumation of the Pyrenean chain and the evolution of the adjacent foreland basins makes this Alpine-type domain a good laboratory to better constrain a full sediment routing system in a compressive context an…
View article: The Source-to-Sink Vade-mecum: History, Concepts and Tools | Vade-mecum de l'approche Source-To-Sink: Histoire, Concepts et Outils
The Source-to-Sink Vade-mecum: History, Concepts and Tools | Vade-mecum de l'approche Source-To-Sink: Histoire, Concepts et Outils Open
“The Source-to-Sink Vade Mecum: History, Concepts and Tools” is the latest Open-Access addition to the SEPM series Concepts in Sedimentology and Paleontology. In the form of a carry-along vade-mecum, in English and French, this volume offe…
View article: Diffusion driven barite front nucleation and crystallisation in sedimentary rocks
Diffusion driven barite front nucleation and crystallisation in sedimentary rocks Open
View article: The Neotethyan Arabian necking zone exposed at the SE Oman mountains: field evidence and consequences
The Neotethyan Arabian necking zone exposed at the SE Oman mountains: field evidence and consequences Open
<p>The Late Cretaceous Oman Mountains are generally assumed to result from obduction followed by the inversion of the mid-Permian- to Triassic Neotethyan rifted margin. However, the key rift-related crustal features, such as a neckin…
View article: New way to predict sediment production and deposition around a mountain belt : integrated Source to Sink palaeogeological maps.
New way to predict sediment production and deposition around a mountain belt : integrated Source to Sink palaeogeological maps. Open
<p>The knowledge acquired on the exhumation of the Pyrenean mountain belt and the evolution of the adjacent foreland basins makes this Alpine-type domain a good laboratory to better constrain a full sediment routing system in a compr…
View article: Mercury enrichments of the Pyrenean foreland basins sediments support enhanced volcanism during the Paleocene-Eocene thermal maximum (PETM)
Mercury enrichments of the Pyrenean foreland basins sediments support enhanced volcanism during the Paleocene-Eocene thermal maximum (PETM) Open
View article: Evolution of a low convergence collisional orogen: a review of Pyrenean orogenesis
Evolution of a low convergence collisional orogen: a review of Pyrenean orogenesis Open
The Pyrenees is a collisional orogen built by inversion of an immature rift system during convergence of the Iberian and European plates from Late Cretaceous to late Cenozoic. The full mountain belt consists of the pro-foreland southern Py…
View article: Passive imaging of collisional orogens: a review of a decade of geophysical studies in the Pyrénées
Passive imaging of collisional orogens: a review of a decade of geophysical studies in the Pyrénées Open
This contribution reviews the challenges of imaging collisional orogens, focusing on the example of the Pyrenean domain. Indeed, important progresses have been accomplished regarding our understanding of the architecture of this mountain r…
View article: Exploring for natural H<sub>2</sub> in the North Western Pyrenean foothills
Exploring for natural H<sub>2</sub> in the North Western Pyrenean foothills Open
View article: New way to predict sediment production and deposition: integrated Source to Sink maps at pluri-basisns-scale
New way to predict sediment production and deposition: integrated Source to Sink maps at pluri-basisns-scale Open
View article: Mineralogical and geochemical study of serpentinized peridotites from the North-Western Pyrenees: New insights on serpentinization along magma-poor continental passive margins
Mineralogical and geochemical study of serpentinized peridotites from the North-Western Pyrenees: New insights on serpentinization along magma-poor continental passive margins Open
View article: Hydrocarbon mass balance calculations in petroleum systems experiencing thermochemical sulfate reduction (TSR)
Hydrocarbon mass balance calculations in petroleum systems experiencing thermochemical sulfate reduction (TSR) Open
International audience
View article: A reappraisal of hydrocarbons generation and destruction in the petroleum systems of Southern Aquitaine (France)
A reappraisal of hydrocarbons generation and destruction in the petroleum systems of Southern Aquitaine (France) Open
International audience
View article: Fluids evolution, hydrocarbon generation and destruction in foreland basins: example of the petroleum systems of Southern Aquitaine (France)
Fluids evolution, hydrocarbon generation and destruction in foreland basins: example of the petroleum systems of Southern Aquitaine (France) Open
International audience
View article: Native H<sub>2</sub> Exploration in the Western Pyrenean Foothills
Native H<sub>2</sub> Exploration in the Western Pyrenean Foothills Open
Native hydrogen (H 2 ) may represent a new carbon free‐energy resource, but to date there is no specific exploration guide to target H 2 ‐fertile geological settings. Here, we present the first soil gas survey specifically designed to expl…
View article: Native H2 exploration in the western Pyrenean foothills
Native H2 exploration in the western Pyrenean foothills Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at G-Cubed. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints pr…
View article: Enhanced volcanism associated to the emplacement of the North Atlantic Igneous Province during the PETM evidenced by mercury anomalies in Pyrenean foreland sections
Enhanced volcanism associated to the emplacement of the North Atlantic Igneous Province during the PETM evidenced by mercury anomalies in Pyrenean foreland sections Open
<p>The Paleocene-Eocene thermal maximum (PETM; ~55.6 Ma) is one of the most pronounced and the best known of the transient hyperthermal events of the Paleogene. The PETM is characterized by global warming, a significant perturbation …
View article: A new way to predict sediment production and deposition: integrated Source to Sink maps at pluri-basins-scale
A new way to predict sediment production and deposition: integrated Source to Sink maps at pluri-basins-scale Open
<h3>The knowledge acquired on the exhumation of the Pyrenean chain and the evolution of the adjacent foreland basins makes this Alpine-type domain a good laboratory to better constrain a full sediment routing system in a compressive …
View article: Rift and salt-related multi-phase dolomitization: example from the northwestern Pyrenees
Rift and salt-related multi-phase dolomitization: example from the northwestern Pyrenees Open
View article: The North Pyrenean Frontal Thrust: structure, timing and late fluid circulation inferred from seismic and thermal-geochemical analyses of well data
The North Pyrenean Frontal Thrust: structure, timing and late fluid circulation inferred from seismic and thermal-geochemical analyses of well data Open
During orogenesis, large-scale thrusts as orogenic fronts can act as conduits and/or barriers for fluid flow. Unravelling the timing and modes of tectonic activation of large-scale faults is crucial to understanding the relationship betwee…
View article: Geodynamic evolution of a wide plate boundary in the Western Mediterranean, near-field<i>versus</i>far-field interactions
Geodynamic evolution of a wide plate boundary in the Western Mediterranean, near-field<i>versus</i>far-field interactions Open
The present-day tectonic setting of the Western Mediterranean region, from the Pyrénées to the Betics and from the Alps to the Atlas, results from a complex 3-D geodynamic evolution involving the interactions between the Africa, Eurasia an…
View article: Distribution and intensity of High-Temperature Low-Pressure metamorphism across the Pyrenean-Cantabrian belt: constraints on the thermal record of the pre-orogenic hyperextension rifting
Distribution and intensity of High-Temperature Low-Pressure metamorphism across the Pyrenean-Cantabrian belt: constraints on the thermal record of the pre-orogenic hyperextension rifting Open
Whereas a straightforward link between crustal thinning and geothermal gradients during rifting is now well established, the thermal structure of sedimentary basins within hyperextended domains remains poorly documented. For this purpose, …
View article: Architecture of the Demerara-Suriname-Guyana Segmented Rifted Margins: Insights for the Jurassic Kinematics
Architecture of the Demerara-Suriname-Guyana Segmented Rifted Margins: Insights for the Jurassic Kinematics Open