A5038219413- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- earthquake and tectonic studies
- Geological and Geophysical Studies Worldwide
- Geochemistry and Geologic Mapping
- Geological formations and processes
- Methane Hydrates and Related Phenomena
- High-pressure geophysics and materials
- Pleistocene-Era Hominins and Archaeology
- Hydrocarbon exploration and reservoir analysis
- Geological and Geophysical Studies
- Geological Studies and Exploration
- Cryospheric studies and observations
- Landslides and related hazards
- Marine and environmental studies
- Planetary Science and Exploration
- Evolution and Paleontology Studies
- Astro and Planetary Science
- Geological Formations and Processes Exploration
- Nuclear Physics and Applications
- Radioactive element chemistry and processing
- Geomagnetism and Paleomagnetism Studies
- Mineralogy and Gemology Studies
- Paleontology and Stratigraphy of Fossils
- Archaeological and Historical Studies
Centre National de la Recherche Scientifique
2015-2024
Université de Lorraine
2015-2024
Centre de Recherches Pétrographiques et Géochimiques
2015-2024
John Wiley & Sons (United States)
2016
Délégation Centre-Est
2015
Centre de Recherche et d’Enseignement de Géosciences de l’Environnement
1997-1999
Laboratoire Magmas et Volcans
1997
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...
This article presents (U‐Th)/He thermochronological data from the Longmen Shan belt, eastern Tibet. Located between Songpan‐Garze terrane and Yangtze craton, this mountain range is one of steepest margins Tibetan Plateau an important area for comprehension mechanisms that control dynamics such plateau borders in terms spatial distribution deformation or timing topographic building. We describe several age‐elevation transects perform forward modeling our to derive quantitative information on...
ABSTRACT Fission‐track (FT) analysis of detrital zircon from synorogenic sediment is a well‐established tool to examine the cooling and exhumation history convergent mountain belts, but has so far not been used determine long‐term evolution central Himalaya. This study presents FT 22 sandstone modern samples that were collected along three stratigraphic sections within Miocene Pliocene Siwalik Group, rivers, in western Nepal. The results provide evidence for widespread Nepalese Himalaya at...
Research Article| February 01, 2008 Timing of East African Rift development in southern Ethiopia: Implication for mantle plume activity and evolution topography Raphaël Pik; Pik 1Centre de Recherches Pétrographiques et Géochimiques, CRPG, CNRS-UPR 2300, BP 20, 54501 Vandoeuvre-Lès-Nancy Cedex, France Search other works by this author on: GSW Google Scholar Bernard Marty; Marty Jean Carignan; Carignan Gezahegn Yirgu; Yirgu 2Addis Ababa University, Geology Geophysics Department, P.O. Box 1176,...
Abstract Recent research in Afar (northern Ethiopia) has largely focused on the formation of present‐day ocean‐continent transition at active segments (e.g., Manda Hararo). However, Oligo‐Miocene history extension, from onset rifting ~25 Ma to eruption massive Stratoïd flood basalts ~4 Ma, remains poorly constrained. Here we present new structural data and radiometric dating Central Afar, obtained along a zone stretching undeformed Oligocene Ethiopian plateau Hararo Tat'Ale volcanic...
Significance The debate on the onset of plate tectonics in Earth’s history has partially originated from controversial criteria using felsic crust to trace past. Here, we demonstrate how Ti isotope ratios can be used as a proxy for affinity rocks plume or island arc settings. Our study shows that, contrary what was previously assumed, isotopes cannot serve direct evidence 3.5 billion years ago, and must combined with other information SiO 2 contents crustal reliable.
Abstract The element mercury (Hg) can develop large mass‐independent fractionation (MIF) (Δ 199 Hg) due to photo‐chemical reactions at Earth's surface. This results in globally negative Δ Hg for terrestrial sub‐aerially‐derived materials and positive sub‐aqueously‐derived marine sediments. mantle composition least affected by crustal recycling is estimated from high‐ 3 He/ 4 He lavas Samoa Iceland, providing an average of = 0.00 ± 0.10, 201 −0.02 0.0.09, δ 202 −1.7 1.2; 2SD, N 11. By...
The impact of rift-related processes on tectonic and thermal evolution collisional orogens is poorly documented. Here, we study the northern Pyrenees, a region that has preserved geological record transition from rifting to collision. Using modeling new low-temperature thermochronological data, including fission track (U-Th)/He apatite zircon, propose temporal reconstruction inversion European rifted margin. Our data confirm related cooling started in Late Paleozoic-Triassic. Throughout...
Abstract In collisional orogens, distinguishing the thermal signature of early orogenesis from preceding rift or subsequent events is a major challenge. We present an integrated geological and low‐temperature thermochronology study Paleozoic Agly‐Salvezines crustal block in retrowedge eastern Pyrenees (France). The northern preserves one best records rift‐to‐collision transition. represents inverted distal European margin Aptian–Cenomanian system. Seventeen samples were collected throughout...