A5020776643- Geochemistry and Geologic Mapping
- Geological and Geochemical Analysis
- Geophysical and Geoelectrical Methods
- Geological Modeling and Analysis
- Geological formations and processes
- Geological and Geophysical Studies Worldwide
- Soil Geostatistics and Mapping
- Geomagnetism and Paleomagnetism Studies
- earthquake and tectonic studies
- Geological and Geophysical Studies
- Hydrocarbon exploration and reservoir analysis
- Geophysical Methods and Applications
- Soil erosion and sediment transport
- Geology and Paleoclimatology Research
- Seismic Imaging and Inversion Techniques
- Image Processing and 3D Reconstruction
- Radioactivity and Radon Measurements
- Geophysics and Gravity Measurements
- High-pressure geophysics and materials
- Seismic Waves and Analysis
- Soil and Unsaturated Flow
- Geological Formations and Processes Exploration
- 3D Surveying and Cultural Heritage
- Agriculture and Rural Development Research
- Methane Hydrates and Related Phenomena
Bureau de Recherches Géologiques et Minières
2015-2024
United States Geological Survey
2020-2023
Université d'Orléans
2014-2018
Centre National de la Recherche Scientifique
2013-2018
Institut des Sciences de la Terre
2013-2017
Institut des Sciences de la Terre d'Orléans
2013-2017
Laboratoire d'Hydrodynamique
2001-2016
Infosys (India)
2013
Institut de physique du globe de Paris
1999-2001
Soils are at the crossroads of many existential issues that humanity is currently facing. a finite resource under threat, mainly due to human pressure. There an urgent need map and monitor them field, regional, global scales in order improve their management prevent degradation. This remains challenge high often complex spatial variability inherent soils. Over last four decades, major research efforts field pedometrics have led development methods allowing capture nature As result, digital...
Satellite-based soil organic carbon content (SOC) mapping over wide regions is generally hampered by the low sampling density and diversity of periods. Some unfavorable topsoil conditions, such as high moisture, rugosity, presence crop residues, limited amplitude SOC values area bare when a single image used, are also among influencing factors. To generate reliable map, this study addresses use Sentinel-2 (S2) temporal mosaics (S2Bsoil) 6 years jointly with moisture products (SMPs) derived...
Digital soil mapping (DSM) is commonly conducted using input attributes derived from laboratory analyses of geographically referenced samples. Field observations are often abundant and can offer a dense source data that has the potential to enhance DSM predictions. However, they not widely used due concerns about subjectivity quality. This study investigates usefulness hand-feel texture (HFST) for DSM. We processed HFST obtained forest soils in France two inventory campaigns: (i)...
Soil thickness (ST) plays an important role in regulating soil processes, vegetation growth and land suitability. Therefore, it has been listed as one of twelve basic properties to be delivered GlobalSoilMap project. However, ST prediction reported with poor performance previous studies. Our case study is located the intensive agriculture Beauce area, central France. In this region, mainly depends on loess (TOL) deposits over a calcareous bedrock. We attempted test TOL by coupling large...
We investigate the use of continuous wavelet transform for gravity inversion. The operator has recently been introduced in domain potential fields both as a filtering and source‐analysis tool. Here we develop an inverse scheme domain, designed to recover geometric characteristics density heterogeneities described by simple‐shaped sources. 1‐D analyzing associates upward continuation linear combinations derivatives any order. In case, first demonstrate how localize causative sources using...
We use two gravity profiles that we measured across Central Nepal, in conjunction with existing data, to constrain the mechanical behaviour and petrological structure of lithosphere Himalayan collision zone. The data show (1) overcompensation foreland undercompensation Higher Himalaya, as expected from flexural support range; (2) a steep gradient order 1.3 mgalkm−1 beneath suggesting locally steeper Moho; (3) 10km wide hinge southern Tibet. compare these 2-D model which Indian is flexed down...
Abstract This work first presents field structural analysis, anisotropy of magnetic susceptibility (AMS) measurements, and kinematic microstructural studies on the Neoproterozoic Pengguan complex located in middle segment Longmenshan thrust belt (LMTB), NE Tibet. These investigations indicate that is a heterogeneous unit with ductilely deformed NW domain an undeformed SE domain, rather than single homogeneous body as previously thought. The part constrained by top‐to‐the‐NW shearing along...
Abstract. We conducted a multidisciplinary study at the watershed scale of an andesitic-type volcanic island in order to better characterize hydrogeological functioning aquifers and evaluate groundwater resources. A heliborne Time Domain ElectroMagnetic (TDEM) survey was over Martinique investigate underground structures lithology, characterized by high lateral vertical geological variability resulting very heterogeneity their characteristics. Correlations were made on three adjacent...
Magnetic surveying is a widely used and cost-efficient remote sensing method for the detection of subsurface structures at all scales. Traditionally, magnetic has been conducted as ground or airborne surveys, which are cheap provide large-scale consistent data coverage, respectively. However, surveys often incomplete slow, whereas suffer from being inflexible, expensive characterized by reduced signal-to-noise ratio, due to increased sensor-to-source distance. With rise reliable affordable...
Abstract In volcanic islands, a crucial step in managing watershed water resources is the characterization of groundwater aquifers from local to regional scales. Airborne geophysical data provide high‐resolution images down hundreds meters below surface, over large areas. Yet, production an accurate interpretation imagery may be time consuming or limited by low density geological and hydrological field observations. Here, we propose approach combining airborne electromagnetic magnetic order...
We present and discuss a 3-D geometrical model of the Moho topography in Southwestern Alps. To achieve this objective, we used potential modelling software (i.e. GeoModeller) to combine gravity, seismic seismological constraints same coherent space.
New gravity and aeromagnetic investigations have been carried out to understand the emplacement mechanisms of a granitic pluton relationships with nearby lithospheric‐scale fault. This paper concerns second part methodological multidisciplinary study complements previous geochronologic Anisotropy Magnetic Susceptibility (AMS) studies on same pluton. In northern Variscan French Massif Central (FMC) Montmarault massif crops along Sillon Houiller Fault (SHF). Bouguer anomaly maps imply...