A5065261045- Geology and Paleoclimatology Research
- Groundwater and Isotope Geochemistry
- Geochemistry and Elemental Analysis
- Isotope Analysis in Ecology
- Geological formations and processes
- Geochemistry and Geologic Mapping
- Soil erosion and sediment transport
- Geological and Geochemical Analysis
- Groundwater flow and contamination studies
- Fish Ecology and Management Studies
- Methane Hydrates and Related Phenomena
- Paleontology and Stratigraphy of Fossils
- Marine and coastal ecosystems
- Silicon Effects in Agriculture
- Hydrology and Watershed Management Studies
- earthquake and tectonic studies
- Hydrocarbon exploration and reservoir analysis
- Landslides and related hazards
- Fish biology, ecology, and behavior
- Radioactive contamination and transfer
- Environmental DNA in Biodiversity Studies
- Water Quality and Pollution Assessment
- Soil and Water Nutrient Dynamics
- Geomagnetism and Paleomagnetism Studies
- Cryospheric studies and observations
Institut de physique du globe de Paris
2016-2025
Université Paris Cité
2016-2025
Centre National de la Recherche Scientifique
2016-2025
Sorbonne Paris Cité
2014-2024
University of Illinois Urbana-Champaign
2024
GFZ Helmholtz Centre for Geosciences
2012-2021
Freie Universität Berlin
2021
Institut Universitaire de France
2014-2021
Institut Pierre-Gilles de Gennes pour la Microfluidique
2011-2018
Observatoire Midi-Pyrénées
2018
Residual solid products of erosion display a wide range size, density, shape, mineralogy, and chemical composition are hydrodynamically sorted in large river channels during their transport. We characterize the isotopic variability sediments Amazon Basin, collected at different water depths, as function grain size. Absolute concentrations Sr Nd ratios greatly varies along channel depth. The Al/Si ratio, tightly linked to size distribution, systematically decreases with depth, mostly...
des établissements d'enseignement et de recherche français ou étrangers, laboratoires publics privés.
Research Article| March 01, 2010 Oxidation of petrogenic organic carbon in the Amazon floodplain as a source atmospheric CO2 Julien Bouchez; Bouchez 1Institut de Physique du Globe Paris, CNRS-UMR 7154, 4, place Jussieu 75252 Paris cedex 05, France2Université Diderot, 75205 13, France Search for other works by this author on: GSW Google Scholar Olivier Beyssac; Beyssac 3Laboratoire Géologie, Ecole Normale Supérieure, 8538, 24 rue Lhomond, 75231 Valier Galy; Galy 4Woods Hole Oceanographic...
When rock is converted to weathering products, the involved processes can be fingerprinted using stable isotope ratios of metals (for example Li, Mg, Ca, Fe, Sr) and metalloids (B, Si). Here we construct a framework for interpreting these "novel" quantitatively in compartments zone geomorphic context. The approach applicable any novel system based on simple steady-state mass balance model that represents from scale soil column entire continents. Our assumption two main associated with...
Research Article| May 01, 2017 Tracing weathering regimes using the lithium isotope composition of detrital sediments Mathieu Dellinger; Dellinger 1Geography Department, Durham University, South Road, DH1 3LE, UK2Institut de Physique du Globe Paris (IPGP), Sorbonne Cité, University Diderot, CNRS, 75231, France Search for other works by this author on: GSW Google Scholar Julien Bouchez; Bouchez 2Institut Jérôme Gaillardet; Gaillardet France3Institut Universitaire France, 75231 Cedex 05,...
Abstract Shifts in water fluxes and chemical heterogeneity through catchments combine to dictate stream solute export from the Critical Zone. The ways which these factors emerge resultant concentration‐discharge ( C‐Q ) relationships remain obscure, particularly at timescale of individual precipitation discharge events. Here we take advantage a new high‐frequency, multi‐element multi‐event data set. concentrations seven major ions were recorded every 40 min over five flood events spanning...
Abstract A major feature of the Anthropocene is drastic increase in global soil erosion. Soil erosion threatening Earth habitability not only as soils are an essential component system but also because societies depend on soils. However, proper quantification impact human activities over thousands years still lacking. This particularly crucial mountainous areas, where highest rates recorded. Here we use Lake Bourget catchment, one largest European Alps, to estimate quantitatively Based a...
Quantifying the rates at which carbonate rocks are denuded, balance between chemical weathering and physical erosion, their responsiveness to climate, vegetation, tectonic activity is crucial for revealing feedback mechanisms in carbon cycle dynamics of karst landscapes that provide vital services humans. However, no existing method effectively partitions denudation into erosion fluxes. To estimate total terrains across spatial scales from soil entire watersheds, we adapted a previously...
Abstract. Plants and soil microbiota play an active role in rock weathering potentially couple at depth with erosion the surface. The nature of this coupling is still unresolved because we lacked means to quantify passage chemical elements from through higher plants. In a temperate forested landscape characterised by relatively fast (∼ 220 t km−2 yr−1) denudation kinetically limited regime Southern Sierra Critical Zone Observatory (SSCZO), California, measured magnesium (Mg) stable isotopes...