A5025281692- Geochemistry and Elemental Analysis
- Methane Hydrates and Related Phenomena
- Geology and Paleoclimatology Research
- Oceanographic and Atmospheric Processes
- Marine and coastal ecosystems
- Geological and Geophysical Studies Worldwide
- Coastal and Marine Management
- Hydrocarbon exploration and reservoir analysis
- Geological and Geophysical Studies
- Tropical and Extratropical Cyclones Research
- Isotope Analysis in Ecology
- Marine and Offshore Engineering Studies
- Microplastics and Plastic Pollution
- Mercury impact and mitigation studies
- Geomagnetism and Paleomagnetism Studies
- Geological and Geochemical Analysis
- Ocean Waves and Remote Sensing
Laboratoire d’Études en Géophysique et Océanographie Spatiales
2020-2024
Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques
2024
Université de Toulouse
2020-2024
Institut de Recherche pour le Développement
2020-2024
Centre National de la Recherche Scientifique
2020-2024
Université Toulouse III - Paul Sabatier
2020-2022
Abstract To improve our understanding and guide future studies applications, we review the biogeochemistry of rare earth elements (REE). The REEs, which form a chemically uniform group due to their nearly identical physicochemical properties, include lanthanide series plus scandium (Sc) yttrium (Y). These elements, in conjunction with neodymium isotopes, are powerful tools for key oceanic, terrestrial, biological even anthropogenic processes. Furthermore, unique properties render them...
Dissolved concentrations of 14 Rare Earth Elements (dREE) were measured in seawater samples collected during the GEOVIDE cruise (GEOTRACES GA01, May–June 2014) North Atlantic. This is first dREE dataset produced using manually operated self-built preconcentration system, made eight columns Nobias chelate PA-1® resin (Hitachi High-Technologies) parallel. Concentration profiles differ from typical "nutrient-like" vertical distributions. Instead, we observe surface enrichment, especially close...
Abstract. Particulate concentrations of the 14 Rare Earth Elements (PREE), yttrium, and 232-thorium were measured in 200 samples collected epipelagic (ca. 0–200 m) mesopelagic 200–1500 zones North Atlantic during GEOVIDE cruise (May/June 2014, R/V Pourquoi Pas?, GEOTRACES GA01), providing most detailed snapshot PREE distribution so far. Concentrations particulate cerium (PCe) varied between 0.2 16 pmol L−1, while neodymium (PNd) ranged 0.1 6.1 L−1. ytterbium (PYb) 0.01 0.50 In addition, this...
Abstract This study proposes new insights for the interpretation of GEOVIDE particle measurements. Potential resuspension sites due to internal tides (ITs) have been identified along western Iberian shelf slope using a tidal regional model. is mainly source lithogenic material whereas Galicia Bank biogenic matter. The potential pathways particles from toward stations are IBIRYS reanalysis infer their transport by ocean circulation. It appears that each station influenced specific pathway and...
This study presents the first basin scale section of partition coefficients (Kd) 14 rare earth elements (REE) along GEOVIDE (GEOTRACES GA01 cruise) transect, in subpolar North Atlantic (May–June 2014, R/V Pourquoi Pas?). Although Kd data are very scarce literature, it is a key parameter element cycle modeling, controlling scavenging efficiency by particles. Because this lack data, generally adjusted models to obtain best agreement between modeled and observed concentrations. shortcoming...
Abstract. Particulate concentrations of the fourteen Rare Earth Elements (PREE), yttrium and 232-thorium have been measured in two hundred samples collected epipelagic (ca. 0–200 m) mesopelagic 200–1000 zones North Atlantic, during GEOVIDE cruise (May/June 2014, R/V Pourquoi Pas ?, GEOTRACES GA01). cerium (PCe) vary from 0.2 pmol L−1 to 16 L−1, particulate neodymium (PNd) ones 0.09 6.1 ytterbium (PYb) 0.01 0.5 L−1. PREE are higher close Iberian margin on Greenland shelf, where normalized...
Particulate Rare Earth Element behavior in the
Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Journal of Geophysical Research - Oceans. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v1]Internal tides responsible lithogenic inputs along Iberian continental slopeAuthorsSimonBarbotiDMarionLagardeFlorent...
Distributions of dissolved and particulate rare earth elements (REE) were established in samples collected as part the SWINGS GEOTRACES cruise (MD229/GS02 along a section starting at La Reunion 21° S-55°30'° E) ending Marion islands (46°S 37°E) south west Indian ocean.Particular attention was paid to documenting REE behaviors Aghulas current return currents, well South African Marion-Prince Edwards margins.In addition, two stations above SWIR (Southwest Ridge) allowed identifying...
Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Journal of Geophysical Research - Oceans. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v1]Internal tides responsible lithogenic inputs along Iberian continental slopeAuthorsSimonBarbotiDMarionLagardeFlorent...