• Site Map

    All the web pages on the conference website







My Goldschmidt

Role functions

All abstracts by Georges Ona-Nguema in conference series: Goldschmidt

(2015) Fate of Silver Nanoparticles at the Bacterial Biofilm/Mineral/Water Interface
Gelabert A, Levard C, Ona-Nguema G, Desmau M, Auffan M, Rose J, Labille J, Sivry Y, Eng P, Guyot F & Benedetti MF

(2015) Fe and Ni Cycling in Mangrove Sediments from New Caledonia
Juillot F, Noel V, Morin G, Marchand C, Viollier E, Ona-Nguema G, Brest J, Marakovic G & Brown Jr. G

(2015) Partitioning of Trace and Minor Elements between Magnetite and Aqueous Fluids. Experiments and Modeling
Guyot F, Amor M, Busigny V, Ona-Nguema G, Gelabert A, Corvisier J, Tharaud M, Menguy N & Benedetti M

(2015) Arsenic Removal Processes in Mine Drainage Impacted Systems
Morin G, Adra A, Ona-Nguema G, Wang Y, Maillot F, Miot J, Casiot C, Bruneel O, Egal M & Elbaz-Poulichet F

(2015) Chemical Purity of Magnetite Produced by Magnetotactic Bacteria
Amor M, Busigny V, Durand-Dubief M, Tharaud M, Ona-Nguema G, Gélabert A, Alphandéry E, Menguy N, Benedetti M, Chebbi I & Guyot F

(2013) Establishing a Biomarker from Trace Element Incorporation Patterns in Abiotic and Biotic Magnetite
Amor M, Busigny V, Gélabert A, Ona-Nguema G, Tharaud M, Alphandéry E, Durand-Dubief M, Chebbi I & Guyot F

(2013) XAS Crystal-Chemistry of Fe in Mangrove Sediments from New Caledonia. Implication for Iron Biogeochemical Cycling
Noël V, Marchand C, Juillot F, Ona-Nguema G, Marakovic G & Morin G

(2013) Experimental Comparison of Abiotic and Microbial Fe-Mineral Transformations to Identify Pathways of Magnetic Nanoparticle Production during Pedogenesis
Till J, Guyodo Y, Lagroix F, Bonville P, Ona-Nguema G, Menguy N & Morin G

(2013) Some Examples of Applications of X-Ray Circular Magnetic Dichroism in Earth Sciences
Carvallo C, Guyodo Y, Sainctavit P, Arrio M-A, Penn RL, Ona-Nguema G, Morin G & Lagroix F

(2013) Effect of Hydroxycarbonate Green-Rust Particle Size on Ferrous Denitrification
Ona-Nguema G, Guerbois D, Maffioli P, Noel V, Brest J & Morin G

(2013) Environmental Mineralogy: Bridging the Gap from Microscopic to Macroscopic
Calas G, Morin G, Allard T, Galoisy L, Juillot F, Ona-Nguema G & Brown, Jr. GE

(2013) Ferrous Denitrification by Biogenic Hydroxycarbonate Green-Rust
Guerbois D, Ona-nguema G, Morin G, Laverman A, Abdelmoula M, Mouchel J-M, Barthelemy K & Brest J

(2013) Structure and Reactivity of Nanocrystalline Iron Oxides in the Environment
Morin G, Maillot F, Adra A, Blanchard M, Ona-Nguema G, Wang Y, Menguy N & Brown Jr. GE

(2012) Redox Reactions Affecting Arsenic at Iron-(oxyhydr)oxide Mineral Surfaces
Morin G, Ona-Nguema G, Benzerara K, Juillot F, Wang Y, Hohmann C, Obst M, Kappler A & Brown Jr. GE

(2012) EXAFS Analysis of Crystal Chemistry of Ni in a Lateritic Weathering Profile from New Caledonia
Dublet G, Juillot F, Morin G, Fritsch E, Fandeur D, Ona-Nguema G & Brown Jr. G

(2011) How Biogenic Nano-Iron Oxides can Control the Fate of Pollutants
Morin G, Ona-Nguema G, Juillot F, Maillot F, Wang Y, Egal M, Bruneel O, Casiot C, Elbaz-Poulichet F, Calas G & Brown GE

(2011) Redox Reactions on Mineral Surfaces: Spectroscopic and Imaging Studies at the Molecular Level
Brown G, Morin G, Ona-Nguema G, Juillot F, Fandeur D, Benzerara K, Calas G, Wang Y, Ha J, Kaya S, Kendelewicz T, Spormann A & Nilsson A

(2010) Arsenic Sequestration and Oxidation at the Surface of Fe(II)-containing Iron (Hydr)oxide Nanoparticles
Morin G, Ona-Nguema G, Wang Y, Juillot F, Menguy N, Calas G & Brown Jr. GE

(2009) Arsenite Sequestration by Fe(II)-Containing Minerals after Microbial Dissimilatory Reduction of Arsenic-Sorbed Lepidocrocite
Ona-Nguema G, Morin G, Wang Y, Juillot F, Abdelmoula M, Ruby C, Guyot F, Calas G & Brown GE

(2009) Arsenic(III) Polymerization Upon Sorption on Iron(II, III)-(Hydr)oxides Surfaces – Implications for Arsenic Mobility Under Reducing Conditions
Morin G, Ona-Nguema G, Wang Y, Juillot F, Menguy N, Calas G & Brown Jr. GE

(2008) Synchrotron X-Ray Studies of Bacteria-Mineral-Metal Ion Interactions
Brown, Jr. GE, Gelabert A, Wang Y, Cismasu C, Ha J, Ona-Nguema G, Benzerara K, Morin G & Wang Y

(2008) Parameters Controlling Metal Adsorption at the Biofilm/Mineral Interface: Evidence for a Diffusion Limited Process and Comparison with Thermodynamic Modeling
Gelabert A, Wang Y, Ha J, Ona-Nguema G, Spormann AM, Bargar JR, Rogers J, Eng P, Ghose S & Brown GE

(2008) Zinc and Arsenic Immobilization and Magnetite Formation Upon Reduction of Maghemite by Shewanella putrefaciens ATCC 8071
Cismasu C, Ona-Nguema G, Menguy N, Bonnin D & Brown G

(2008) Impact of S. oneidensis MR-1 Biofilm Coatings on Trace Element Partitioning at Metal-Oxide/Water Interfaces: A Long Period XSW-FY Study
Wang Y, Alexandre G, Ona-Nguema G, Ha J, Gescher J, Bargar J, Rogers J, Eng P, Spormann A & Brown G

(2007) As(V)-bearing Lepidocrocite and Green Rust Reduction by Shewanella putrefaciens: Evidence for Fe(II) Carbonate Hydroxide Formation
Ona-Nguema G, Morin G, Wang Y, Juillot F, Guyot F, Calas G & Brown, Jr GE

(2007) Mechanisms of Arsenic Scavenging by Iron (Hydr)oxides in Anoxic Environments
Wang Y, Morin G, Ona-Nguema G, Menguy N, Guyot F, Hazemann J-L, Calas G & Brown Jr. GE

Goldschmidt® is a registered trademark of the Geochemical Society and of the European Association of Geochemistry

Website managed and hosted by White Iron Conferences on behalf of the international geochemical community