Brittany Sol Rare earth elements Speciation Organic matter Environment Métaux Biogeochemistry Bioreduction Expérimentation Carbon ICP-MS Dissolved organic carbon REE Wetland River water reference material Oxyde de fer Competition Massif Central Hydrology Bio-dissolution Riparian wetland Redox Colloïdes PHREEPLOT Reductive dissolution France Mount Cameroon Arsenic Soil Geochemistry Colonne du sol Metals Carbonate Adsorption Fer PHREEQC Bio-minéralisation Colloids Humic acid ArsenicIII Matière organique Carbonifère NanoSIMS Humic substances DOC Actinides Nanoplastics Estuary Ionic strength Nanoparticules Fe Gabon Colloid Dissolved organic matter Leaching Magnetite nanoparticles Identification Hydromorphic soil HYDROLOGIE Model VI Carbone Biogéochimie Groundwater Model VII Modélisation Iron reducing bacteria PHREEQC-Model VI Agricultural catchment IronII Trace elements PH Complexation Iron Nanoparticles EXAFS Ce anomaly Aggregation Ultrafiltration Acide humique Fecal stanols Sorption Column of soil Spéciation Terres rares Binding Iron oxide Bactéries ferriréductrices Géochimie Modeling Permien GEOF Aluminium Fe oxyhydroxides Characterization Bacteria Palaeoenvironment Bio-mineralization MID-WALES Fecal contamination