A5046209666- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- High-pressure geophysics and materials
- Geological and Geophysical Studies Worldwide
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- Geological formations and processes
- Geochemistry and Geochronology of Asian Mineral Deposits
- Hydrocarbon exploration and reservoir analysis
- Geological Modeling and Analysis
- Karst Systems and Hydrogeology
- Geographic Information Systems Studies
- Radioactive element chemistry and processing
- Geological Formations and Processes Exploration
- Methane Hydrates and Related Phenomena
- Microbial Community Ecology and Physiology
- CO2 Sequestration and Geologic Interactions
- Geological Studies and Exploration
- Geochemistry and Elemental Analysis
- Landslides and related hazards
- Mineral Processing and Grinding
- Geotechnical and Geomechanical Engineering
- Paleontology and Stratigraphy of Fossils
- Rock Mechanics and Modeling
Université de Bourgogne
2016-2024
Laboratoire Chrono-Environnement
2015-2024
Université de franche-comté
2011-2024
Centre National de la Recherche Scientifique
2007-2024
Université Bourgogne Franche-Comté
2018
Université de Tours
2009
Université d'Orléans
2007-2009
Institut des Sciences de la Terre
2006-2009
Institut des Sciences de la Terre d'Orléans
2006-2009
The Trans-North China Belt (TNCB) is a Paleoproterozoic collisional orogen (ca.1.9-1.8Ga) responsible for the amalgamation of North Craton.Detail field works in Lüliangshan, Hengshan, Wutaishan and Fuping massifs where belt well exposed, allow us to draw new tectonic map crustal-scale cross sections.The available petrologic, radiometric, geochronologic data are integrated geodynamic evolution scheme this orogen.The Low Grade Mafic Unit (LGMU) interpreted as an ophiolitic nappe rooted suture...
Abstract This paper documents the first detailed structural analysis of Lüliang Massif in Trans-North China Belt, North Craton. A nappe, made up a Terrigeneous and Mafic Unit (TMU) derived from an oceanic basin thrust over gneisses volcanic-sedimentary rocks, is interpreted as magmatic arc deposited upon TTG basement. The nappe rooted to west Suture that separates Fuping Block Western Block. Nappe stacking, coeval with top-to-the-SE synmetamorphic D 1 event, dated around 1890–1870 Ma using...
Abstract Mafic eclogites are found in many orogens as lenses embedded quartzofeldspathic migmatites. These high‐pressure relics interpreted either remnants of ancient sutures and thus formed during oceanic subduction or fragments lower crust exhumed from the root orogenic thickened crust. It is critical to distinguish between these two endmember scenarios resulting palaeogeographic geodynamic reconstructions may significantly differ. In this contribution, we investigated eclogite Lac Cornu...
Where, when, and why large-scale shear zones nucleate propagate into the continental lithosphere are critical issues that challenge research in tectonics. The East Variscan zone is one of crustal-scale strike-slip faults shaped orogenic crust during late Carboniferous time. Field-based structural analysis petrological observations demonstrate suprasolidus high-strain deformation metagranite occurrences spatially correlated. Among three dominant lithologies forming this middle (metapelite,...
U-Th-Pb LA-ICPMS (Laser Ablation - Inductively Coupled Plasma Mass Spectrometry) has the power to elucidate timing of metamorphism, deformation, migmatization, and plutonism. The Montagne Noire Variscan gneiss dome (southern French Massif Central) been extensively studied, but interpretations geochronology data remain highly debated. In tribute Jean-Louis Paquette’s work, we first present results last 10 years reflection on our knowledge dome, highlighting various contributions...
Abstract Where, when, and why large-scale shear zones nucleate propagate into the continental lithosphere are critical issues that challenge research in tectonics. The East Variscan zone is one of crustal-scale strike-slip faults shaped orogenic crust during late Carboniferous time. Field-based structural analysis petrological observations demonstrate suprasolidus high-strain deformation metagranite occurrences spatially correlated. Among three dominant lithologies forming this middle...
The Paleoproterozoic tectono-metamorphic evolution of the pre-Athabasca basement (∼1.7 Ga) within Wollaston–Mudjatik Transition Zone (WMTZ) (Saskatchewan, Canada) has been characterized using both exposed and drill cores from Wolly–McClean exploration drilling project. finite ductile strain pattern WMTZ results superposition two events M1–D1 M2–D2. is associated with development a gently dipping foliation striking N90°–N100° southward decrease in peak pressures up to 10 kbar (1 = 100 MPa)...
Abstract We document the first occurrence of Fe‐rich olivine‐bearing migmatitic metapelite in Khondalite Belt, North China Craton. Petrological analyses revealed two exotic assemblages orthopyroxene+spinel+olivine and orthopyroxene+spinel+cordierite. Phase relation modelling suggests that these are diagnostic ultra‐high temperature (UHT) metamorphism system, with temperatures from 1,000 to 1,050°C at 0.6 GPa. U–Th–Pb SIMS on zircon reveal a similar age c . 1.92 Ga for migmatite an adjacent...
We decipher late-orogenic crustal flow characterized by feedback relations between partial melting and deformation in the Variscan Montagne Noire gneiss dome. The dome shape finite strain pattern of Axial Zone (MNAZ) result from superimposition three deformations (D1, D2 D3). early flat-lying S1 foliation is folded upright ENE-WSW folds transposed central southern part MNAZ into steep high-strain zones consistent with NW-SE horizontal shortening, bulk contractional coaxial regime that...
Based on new structural, petrological and U-Th-Pb geochronological data, a reappraisal of the Variscan tectono-metamorphic history Pelvoux Massif (External Crystalline Massif, French Alps) is proposed with aim to understand flow pattern kinematics partially molten crust Eastern Shear Zone. The consists high-grade metamorphic rocks middle lower crust, mostly migmatites, that record prominent syn-metamorphic deformation event (D 2 ) characterized by pervasive NE-SW striking, steeply dipping, S...
Abstract This paper aims to decipher the thermal evolution of Montagne Noire Axial Zone (MNAZ, southern French Massif Central) gneiss core and its metasedimentary cover through determination P–T paths temperature gradients. Migmatitic from dome record a clockwise culminating at 725 ± 25 °C 0.8 0.1 GP with partial melting, followed by decompression path only minor cooling 690 25° C 0.4 a. Field structural analyses as well detailed petrological observations indicate that sequence experienced...
Abstract Variscan granitoids and associated mafic rocks exposed in the External Crystalline Massifs (ECM) of Western Alps document stages from early Carboniferous collision to Permian post-collisional setting. Our study focuses on Central part ECM, synthesizing newly acquired existing geochronological, whole-rock geochemical isotopic data. We identified two distinctive magmatic series: (i) high-K calc-alkaline granitoids, which range magnesian (MgG) ferro-magnesian (FeMgG) rocks; (ii)...
Abstract Low pressure‐high temperature (LPHT) metamorphism, with geothermal gradients in the order of 50–100°C/km, is a common feature late evolution collisional orogens. These abnormal thermal conditions may be results complex interactions between magmatism, metamorphism and deformation. The Agly massif, French Pyrenees, preserves metamorphic footprints Variscan structure an almost continuous section from upper middle continental crust. crust characterized by very high gradient ~55°C/km,...