A5013035395- earthquake and tectonic studies
- Geology and Paleoclimatology Research
- Geological formations and processes
- Geological and Geophysical Studies
- Geological and Geochemical Analysis
- Methane Hydrates and Related Phenomena
- Maritime and Coastal Archaeology
- Coral and Marine Ecosystems Studies
- Seismic Imaging and Inversion Techniques
- Geological and Geophysical Studies Worldwide
- Archaeology and ancient environmental studies
- Geophysics and Gravity Measurements
- Marine and environmental studies
- High-pressure geophysics and materials
- Geological and Tectonic Studies in Latin America
- Geochemistry and Geologic Mapping
- Seismology and Earthquake Studies
- Geomagnetism and Paleomagnetism Studies
- Coastal and Marine Dynamics
- Hydrocarbon exploration and reservoir analysis
- Pleistocene-Era Hominins and Archaeology
- Aeolian processes and effects
- Geological Studies and Exploration
- Marine animal studies overview
- Astro and Planetary Science
National Research and Innovation Agency
2021-2024
Centre National de la Recherche Scientifique
2015-2024
Université Gustave Eiffel
2019-2024
National Nuclear Energy Agency of Indonesia
2021-2024
Institut de Recherche pour le Développement
2021-2024
Institut des Sciences de la Terre
2019-2024
Université Grenoble Alpes
2019-2024
Université Claude Bernard Lyon 1
2024
École Normale Supérieure de Lyon
2022-2024
Université Savoie Mont Blanc
2021-2024
In Central and Western Anatolia two continent-derived massifs simultaneously underthrusted an oceanic lithosphere in the Cretaceous ended up with very contrasting metamorphic grades: high pressure, low temperature Tavşanlı zone Kırşehir Block. To assess why, we reconstruct paleogeography plate configuration of using structural, metamorphic, geochronological constraints Africa-Europe reconstructions. We review provide new 40Ar/39Ar U/Pb ages from Anatolian magmatic rocks ophiolites show...
Abstract Formation of new subduction zones represents one the cornerstones plate tectonics, yet both kinematics and geodynamics governing this process remain enigmatic. A major initiation event occurred in Late Cretaceous, within Neo‐Tethys Ocean between Gondwana Eurasia. Suprasubduction zone ophiolites (i.e., emerged fragments ancient oceanic lithosphere formed at suprasubduction spreading centers) were generated during are today distributed eastern Mediterranean region along three ~E‐W...
Abstract Young rifts are shaped by combined tectonic and surface processes climate, yet few records exist to evaluate the interplay of these over an extended period early rift-basin development. Here, we present longest highest resolution record sediment flux paleoenvironmental changes when a young rift connects global oceans. New results from International Ocean Discovery Program (IODP) Expedition 381 in Corinth Rift show 10s–100s kyr cyclic variations basin paleoenvironment as eustatic sea...
Geomorphic strain markers accumulating the effects of many earthquake cycles help to constrain mechanical behaviour continental rift systems as well related seismic hazards. In Corinth Rift (Greece), unique record onshore and offshore Pleistocene ~100-ka climate provides an outstanding possibility mechanics over a range timescales. Here we use high-resolution topography analyse 3D geometry sequence emerged marine terraces associated with flexural rift-flank uplift. We integrate this dataset...
Abstract The Java Back‐arc Thrust scars the entire back‐arc area of Island, but faults' nature, timing, and activity remain partly elusive. Characterizing structure seismogenic (historical earthquakes up to 7 M w ) is a cornerstone evaluate associated geohazards. We focus on western part that reaches megalopolis Jakarta. combine morphotectonic data, seismic reflection, electric resistivity profiles, kinematic, structural field measurements, paleoseismological trenching, sediment dating...
Abstract Understanding early rifting of continental lithosphere requires accurate descriptions up‐bended rift margins and footwalls that ought to correlate in space time with the elastic flexural uplift produces them. Here we characterize geometry by at its spatiotemporal scale nature (tens kilometers; 10 4 –10 6 years) using geomorphic evidence along uplifting margin Corinth Rift, Greece. Our analyses space‐borne topography novelly outline coherent flexure across throughout faulting (~10...
Abstract How can the sluggish, long‐wavelength mantle convection be expressed by so many time and space scales of morphotectonic activity? To investigate these relationships, we explore Java‐Banda subduction zone, where geodynamic records cluster. In far‐East Tethys, exceptionally arcuate Banda zone circumscribes deepest oceanic basin on Earth, seismotectonic activity slices upper plate more efficiently than anywhere else, uncommonly vast expanses continents are flooded in Sundaland Northern...
Abstract The history of sea level across the Quaternary is essential for assessing past and future climate. Global sea-level reconstructions are typically derived from oxygen isotope curves, but require calibration with geological constraints that scarce prior to last glacial cycle (>130 thousand years ago). Here we show coral reef terrace sequence at Huon Peninsula (Papua New Guinea) provides such up ∼420 ago, through a geometric analysis high-resolution topographic data. We derive...
Failed rifts are widely assumed to enter post-rift quiescence after termination of intracontinental rifting. However, this remains largely untested and a comprehensive evaluation the rates patterns tectonic (in)activity is lacking. Our novel, rift-scale geomorphic analysis reveals “post-rift” rifting across archetypal failed rift Suez, in Egypt. Stacked topographic swaths river profiles document pervasive normal fault offsets Plio-Quaternary rocks along length, with fluvial metrics showing...
Coastal landforms are routinely used as “Sea Level Index Points” (SLIP). Among those, owing to their outstanding morphologies, stacks of Quaternary coral reefs most noticeable. Yet, on top sea level fluctuations, morphogenesis is indiscriminately affected by vertical land motion and biological factors. Deciphering respective influence requires understanding the individual within sequences. Here we numerically model coastal explore sensitivity morphology terraces earlier...
Coastal landforms constitute a worldwide archive that intricately records past sea-level, morphotectonics and (bio-)morphogenesis. Although forward landscape evolution modelling has shown its potential in deciphering, independently, either tectonics, or morphogenesis, this strategy rests upon wealth of hypotheses regarding the other 2 aspects. We circumvent limitation by inverting coral reef terraces geometries using Monte-Carlo Markov Chain...
This study examined the arc and line shapes produced in fault ruptures of 2016 Mw7.8 Kaikoura earthquake New Zealand 2023 Mw7.6 East Anatolian Fault earthquakes Turkey-Syria. Theoretical mechanisms physical laws movement were used to interpret conceptual geometry shapes, kinematics force movement. Using computer-aided design (CAD) on Universal Transverse Mercator (UTM) metric projection, this paper presents parameters defining geometry, including straight lines with specific measurements...
Abstract The fossil record of Quaternary reef systems, as expressed in uplifted regions by sequences stacked terraces, has been extensively used either to understand their morphodynamics or unravel sea level variations. Yet, because these two aspects are intimately linked, analysis is often underdetermined the focuses on single sequences, along one‐dimensional profiles. Here, we take advantage lateral variations coral documenting morphological sequence Sumba Island. Near Tambolaka, northwest...
Records of relative sea-level rise for the last deglaciation are mostly limited to coral reef records and geophysical model estimates, but observational data from regions with temperate climates is sparse. We present a new climatic regional record glacial Termination 1 (Marine Isotope Stages [MIS] 2–1) based on ostracode paleoecology upper 8 m International Ocean Discovery Program (IODP) Site M0080 collected Expedition 381, in Gulf Alkyonides, eastern Corinth basin Mediterranean Sea. Results...
The newest generation of satellites have greatly improved the capabilities optical imagery over last decade. Ground resolution has increased by one order magnitude (to sub-metric pixel images), and sensors allow images to be located with an absolute accuracy within a few meters. Better-resolved facilitate refined tectonic studies faults, basins, terraces, other geomorphic features as it provides opportunity extract detailed topographic information. We developed high-resolution digital...
The morphology of coastal sequences provides fundamental observations to unravel past sea level (SL) variations. For that purpose, converting morphometric into a SL datum requires understanding their morphogenesis. long-lasting sequence coral reef terraces (CRTs) at Cape Laundi (Sumba Island, Indonesia) could serve as benchmark. Yet, it epitomizes pitfall challenges the ultimate goal: overall chronology its development remains poorly constrained. polycyclic nature terraces, involving marine...