A5059439565- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- High-pressure geophysics and materials
- Geological and Geophysical Studies
- Geology and Paleoclimatology Research
- Geochemistry and Geochronology of Asian Mineral Deposits
- Geological and Geophysical Studies Worldwide
- Geological Studies and Exploration
- Geochemistry and Elemental Analysis
- Planetary Science and Exploration
- Marine Invertebrate Physiology and Ecology
- Material Science and Thermodynamics
- Paleontology and Stratigraphy of Fossils
- Modular Robots and Swarm Intelligence
- Archaeological and Geological Studies
- Chemical Reactions and Isotopes
- Oceanographic and Atmospheric Processes
- Marine and fisheries research
- Underwater Acoustics Research
- Geophysics and Gravity Measurements
- Methane Hydrates and Related Phenomena
- Geotourism and Geoheritage Conservation
- Nicotinic Acetylcholine Receptors Study
- Geoscience and Mining Technology
Centre National de la Recherche Scientifique
2005-2024
Géosciences Montpellier
2014-2024
Université de Montpellier
2009-2024
Université Paris Cité
1999-2005
Centre de Gestion Scientifique
2003
Laboratoire de Géographie Physique
2003
ESPCI Paris
2003
Institut de physique du globe de Paris
2000-2001
Institut des Sciences de la Terre
1995-1997
Two end member models of how the high elevations in Tibet formed are (i) continuous thickening and widespread viscous flow crust mantle entire plateau (ii) time-dependent, localized shear between coherent lithospheric blocks. Recent studies Cenozoic deformation, magmatism, seismic structure lend support to latter. Since India collided with Asia ∼55 million years ago, rise Tibetan likely occurred three main steps, by successive growth uplift 300- 500-kilometer-wide crustal thrust-wedges. The...
This paper reports isotopic, major and minor element geochemistry of igneous metamorphic rocks from the Kokoxili Yushu regions central eastern Tibet. The first region lies along Kunlun suture, which separates Bayan Har‐Songpan Ganze (Songpan) terrane Tarim Qaidam blocks. Two granitoids yield U‐Pb zircon dates 217 ± 10 207 3 Ma (Late Triassic), represent time emplacement, Rb‐Sr isochron 195 190 (Early Jurassic), are interpreted as cooling ages. geochemical signatures these suggest that they...
The geology of the Jingyu basin (north Tibet) provides constraints on relationship between localized E‐W extension in Qiangtang block and strike‐slip motion along Kunlun fault. Eocene to Oligocene SW‐NE compression formed topographic relief present western Shan. Pull‐apart basins started forming ranges around 15 Ma, possibly coincident with initiation subduction Tarim‐Qaidam lithosphere under Extensional tectonism is still active, extending, as a normal fault connected was recently active....
Mountain domes rising to ≈ 6600 m along Tibet’s Tanggula range herald the Eocene intrusion of calcalkaline granites into terranes accreted much earlier. Together with coeval, cogenetic volcanics, such intrusives, which have similar crystallization and cooling ages, may be part an ESE‐trending belt cutting central Tibet in half. This magmatic marked a former northern boundary plateau, testifying S‐directed subduction Asian mantle. Such would developed soon after India’s collision but long...
Abstract We present a synthesis of the tectonic and thermochronological evolution Eastern Tibet since Triassic. The long-term cooling histories obtained on magmatic metamorphic rocks South Songpan-Garzê, Kunlun Yidun blocks are similar showing very slow regular during Late Jurassic Cretaceous, confirming suspected lack major events between c . 150 30 Ma. exhumation linked to Tertiary growth Tibetan Plateau initiated around Ma concentrates at vicinity structures. Exhumation rates increased...
The strike‐slip faults of north Tibet accommodate part the Cenozoic convergence between India and Asia. Along Karakax valley south Yecheng near Xidatan trough Golmud, active traces Altyn‐Tagh Kunlun follow narrow belts metamorphic rocks. deformation recorded in those mylonites is sinistral strike‐slip. Rb/Sr 40 Ar/ 39 Ar ages from syntectonic fabrics formed at 350–400°C 120 Ma. Argon loss suggests that was associated to a 250–300°C thermal pulse lasted 5–20 Ma after onset movement. Unroofing...
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...
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...