Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie

Equipe Minéralogie Environnementale (MINENV)

Membres de l'équipe

Thierry Allard (DR CNRS HDR)
Etienne Balan (PR Sorbonne Université HDR)
Jessica Brest (IE CNRS)
Mathieu Chassé (MCF Sorbonne Université)
Cristiano Ferraris (MCF MNHN)
Pierre Le Pape (CR CNRS)
Farid Juillot (DR IRD HDR)
Guillaume Morin (DR CNRS HDR)
Georges Ona-Nguema (MCF Sorbonne Université HDR)

Oyku Ataytur (PhD)
Quentin Bollaert (PhD)

Beatrix Heller (PhD)
Karina Marques (PhD)
Maeva Philippe (PhD)

Anciens membres de l'équipe

Parmi les dernières publications

Heller B.M., Bressan Riffel S., Allard T., Morin G., Jean-Yves Roig J-Y, Renaud Couëffé R., Aertgeerts G., Derycke A., Ansart C., Pinna-Jamme R., Gautheron C. (2022) Reading the climate signals hidden in bauxite. Geochimica et Cosmochimica Acta. 323, 40-73. https://doi.org/10.1016/j.gca.2022.02.017

Chassé M., Lutfalla S., Cécillon L., Baudin F., Abiven S., Chenu C., Barré P. (2021) Long-term bare-fallow soil fractions reveal thermo-chemical properties controlling soil organic carbon dynamics. Biogeosciences, 18, 1703–1718. https://doi.org/10.5194/bg-18-1703-2021

Fritsch E, Balan E, Petit S, Juillot F (2021) Vibrational spectroscopic study of three Mg-Ni mineral series in white and greenish clay infillings of the New Caledonian Ni-silicate ores. European Journal of Mineralogy 33, 6, 743-763. https://doi.org/10.5194/ejm-33-743-2021

Guinoiseau D, Fekiacova Z, Allard T, Druhan JL, Balan E, Bouchez, J (2021) Tropical Weathering History Recorded in the Silicon Isotopes of Lateritic Weathering Profiles. Geophysical Research Letters 48, 19, e2021GL092957. https://doi.org/10.1029/2021GL092957

Merrot P., Juillot F., Le Pape P., Lefebvre P., Brest J., Kieffer I., Menguy N., Viollier E., Fernandez J-M., Moreton B., Radakovitch O., Morin G. (2021) Comparative Cr and Mn speciation across a shore-to-reef gradient in lagoon sediments downstream of Cr-rich Ferralsols upon ultramafic rocks in New Caledonia. Journal of Geochemical Exploration 229, 106845. https://doi.org/10.1016/j.gexplo.2021.106845

Lefebvre P., Gourgiotis A., Mangeret A., Sabatier P., Le Pape P., Diez O., Louvat P., Menguy N., Merrot P., Baya C., Zebracki M., Blanchart P., Malet E., Jezequel D., Reyss J.L., Bargar J.R., Gaillardet J., Cazala C., Morin G. (2021) Diagenetic formation of uranium-silica polymers in lake sediments over 3,300 years. Proceedings of the National Academy of Sciences of the United States of America 118, e2021844118. https://doi.org/10.1073/pnas.2021844118

Activités

Les activités de l’équipe Minéralogie Environnementale de l’IMPMC sont centrées sur la compréhension et la modélisation des réactions impliquant des minéraux au cours de certaines étapes fondamentales des cycles (bio)géochimiques des éléments à la Surface de la Terre (altération des roches, formation des sols, transport par les eaux, sédimentation, diagenèse). Ces processus font intervenir des réactions aux interfaces solide-solution-organismes biologiques qui sont étudiées sur des sites naturels pilotes et sur des systèmes modèles au laboratoire, à l’aide de techniques de spectroscopie (Spectroscopie d’absorption des rayons X, Résonance magnétique, Infrarouge), de diffraction des rayons X sous atmosphère contrôlée, et de microscopie (MEB, MET), et de modélisation ab initio (DFT), qui permettent de décrire les mécanismes de ces réactions jusqu’à l’échelle moléculaire.

Cristallochimie des minéraux marqueurs

Les minéraux de basse température constituent des archives du fonctionnement géochimique et de l'histoire de la surface de notre planète. L'information y est notamment séquestrée sous forme d'éléments traces dont l'abondance, la spéciation et la composition isotopique sont déterminées par les paramètres physico-chimiques et biologiques qui prévalaient lors de la croisssance cristalline. Il est donc du rôle du minéralogiste de préciser les liens complexes existant entre l'information à l'échelle moléculaire et sa signification géochimique et de s'assurer de la qualité de la préservation de cette information. Dans ce contexte, nos travaux concernent la compréhension des processus de fractionnement isotopique, l'incorporation des impuretés moléculaires dans les minéraux biogéniques et la compréhension des mécanismes de fossilisation.

Modélisation ab initio des fractionnements isotopiques

Les travaux précurseurs réalisés depuis environ 10 ans dans le domaine de la modélisation ab initio des coefficients de fractionnements isotopiques nous ont ainsi permis d'aborder efficacement les processus de fractionnements isotopiques entre solides et solutions [Pinilla et al. 2014; 2015] et de l'appliquer aux nouveaux systèmes isotopiques comme le fer et le zinc [Blanchard et al. 2015; Ducher et al. 2016], particulièrement étudiés par les géochimistes.

Environnement local des impuretés et traceurs géochimiques

La combinaison d'approches expérimentales (spectroscopies vibrationnelles à basse température et RMN) et théoriques (calculs DFT), nous a permis pour la première fois de proposer et de valider des modèles moléculaires de l'environnement de traces tels que les borates et les sulfates dans les carbonates de calcium, considérés respectivement comme des "proxy" du pH et des conditions rédox des océans anciens [Balan et al. 2014; 2016 a,b]. Ces approches permettent également de tracer efficacement les mécanismes de transformation des matériaux biologiques lors de la fossilisation. Ainsi, l'analyse des modifications de l'environnement moléculaires des groupes carbonates structuraux des apatites révèle une modification aux plus petites échelles spatiales des matériaux constituant le squelette des vertébrés [Yi et al. 2013, 2014 a,b; Balan et al. 2016], "Nouvelle de l'INSU" 2013 (http://www.insu.cnrs.fr/en/node/4370).

Site d'insertion du carbonate en substitution du phosphate et compensé par un ion fluor dans les
fluorapatites carbonatées (francolite) fossiles.

Dynamique des surfaces continentales : Processus d’altération et d’érosion

Datation des sols latéritiques

Lors de programmes CAPES COFECUB (Brésil), PICS/CNRS (Brésil) et SYSTER/INSU (Inde), nous avons échantillonné et analysé des profils latéritiques et des cuirasses ferrugineuses pour appliquer la méthode de datation des kaolinites développée au laboratoire. L’objectif principal est d’établir la relation entre formation des latérites et paléoclimats (et géodynamique), que ce soit à l’échelle globale ou plus régionale. Pendant la thèse de M. Mathian, l’ensemble des données préliminaires est soumis à plusieurs familles de corrections nécessitant des analyses complémentaires mais montre déjà des âges anciens, tertiaires, qu’il faudra confronter aux données paléoclimatiques globales et aux évènements régionaux (ex : surrection des Andes, fermeture de l’isthme de Panama, dérive de l’Inde).

Traçage minéralogique et isotopique des sources de l’érosion

Après un échantillonnage effectué lors d’un programme EC2CO, nous avons cherché à savoir si le fer complexé à la matière organique colloidale, marqueur d’érosion des sols, était stable lors des chocs physicochimiques survenant au niveau de certaines confluences d’Amazonie. Le mélange du rio Negro et du Solimoes, caractérisé par un écart de pH de 2 unités et tracé par les isotopes de l’hydrogène, montre une déstabilisation des complexes organométalliques et la formation de colloïdes d’oxydes de fer compatible avec l’augmentation de pH [Mulholland et al., 2015]. Le mélange est donc non conservatif. De plus, en collaboration avec F. Poitrasson (GET, DR CNRS) nous avons déterminé que les colloïdes du rio Negro sont enrichis en isotopes lourds du fer, signature acquise en amont lors des processus d’oxydation et de complexation en environnement podzolique. Par contre, la signature de l’Amazone est compatible avec celle de la croûte continentale.

Dynamique des éléments traces métalliques sous climat tropical

Les gisements latéritiques de Nouvelle-Calédonie représentent 20 à 30% des réserves mondiales de nickel connues à l’heure actuelle. Si les minerais les plus riches qui correspondent aux garniérites de la base des profils d’altération sont relativement bien connus, les phases porteuses des éléments stratégiques, Ni, Co, Cr dans les minerais plus pauvres de type oxydes du sommet des profils sont beaucoup moins bien identifiées. Nous avons mené un large programme d’étude visant à comprendre les conditions de formation de ces gisements au cours des processus d’altération des roches ultrabasiques, à l’échelle de plusieurs dizaines de millions d’années. Porté par E. Fritsch (DR IRD), ce projet a été financé par le CNRT Ni et Environnement. Les mesures spectroscopiques sur rayonnement synchrotron menées par G. Dublet a cours de sa thèse ont permis de comprendre les facteurs de concentration [Dublet et al. 2012, 2014] puis d’appauvrissement [Dublet et al. 2015] en nickel Ni depuis la base des profils vers leur sommet

Dynamique du carbone sous climat tropical : le rôle des mangroves

Les mangroves, qui occupent 75 % des littoraux tropicaux et subtropicaux, constituent un puits pour le CO2 atmosphérique et une source de nutriments pour les eaux côtières (Lee et al., 2014), fonctions qui pourraient évoluer avec le changement climatique. Depuis 4 ans, nous avons développé un observatoire de la mangrove suivant un gradient latitudinal climatique entre la Nouvelle Zélande, la Nouvelle-Calédonie et le Vietnam. Nous avons montré que le stockage du carbone dans les sédiments des mangroves dépend de l’âge de la mangrove et de sa position intertidale [Marchand et al., in press], des variations saisonnières du microphytobenthos à la surface des sédiments [Leopold et al., 2013; 2015], ainsi que des émissions de CO2 à l’interface eau-atmosphère [Leopold et al., in press]. Les échanges nets de CO2 au niveau de l’écosystème sont suivis par des stations d’eddy-covariance qui ont été installées dans chaque pays de l’observatoire. Les premiers résultats sur la fameuse mangrove du Cœur de Voh en Nouvelle-Calédonie montrent l’importance du stress lié au manque d’eau sur la productivité de l’écosystème [Leopold et al., 2016].
L’urbanisation des littoraux tropicaux et l’augmentation massive du rejet d’eaux usées dans la mangrove pourraient fortement modifier la dynamique du carbone au sein de l’écosystème. Nous avons ainsi montré qu’une partie des effluents aquacoles pouvait être recyclée par les sols et les palétuviers, accroissant la productivité de ces derniers, mais que la mangrove n’était qu’un filtre partiel ne pouvant traiter un volume trop conséquent [Molnar et al., 2013; 2014 ; Aschenbroich et al., 2015]. Différents indicateurs de suivi de la qualité du milieu ont été identifiés [Debenay et al., 2015 : Della Patrona et al., 2016].

Spéciation et fractionnements isotopiques du du fer [Mulholland et al., 2015] lors du mélange des eaux entre le Rio Negro et le Rio Solimoes (Brésil) (crédit photo : Th. Allard).

Speciation du nickel dans les couvertures latéritiques de Nouvelle Calédonie [Dublet et al. 2012]

Biominéralisations et atténuation naturelle aux interfaces redox

Importance des sulfures biogéniques

Piégeage du nickel dans les sulfures de fer naturels. Les mécanismes de formation des sulfures métalliques dans les milieux naturels de basse température restent très mal compris. Au cours de la thèse de la thèse CIFRE de Vincent Noël (2011-2014) avec Koniambo Nickel SAS, nous avons montré par microscopie électronique et spectroscopie EXAFS que le nickel co-précipite avec la pyrite dans les sédiments de mangroves de Nouvelle-Calédonie [Noël et al. 2014, 2015](Figure 6). La mise en évidence du rôle des microorganismes dans la formation de ces sulfures fait l’objet de la thèse de Maya Ikogou dirigée par F. Juillot et G. Ona-Nguema [Ikogou et al. in press]. La formation de pyrites nickelifères dans les sédiments de mangroves contribuent naturellement à protéger le lagon, classé au Patrimoine Mondial de l’Humanité par l’UNESCO, des apports métalliques liés à l’érosion des gisements latéritiques de nickel. Cependant la réoxydation de ces pyrites par les cycles de marées conduit à une remobilisation de Ni2+ vers les eaux porales, ce qui pourrait faciliter son transfert vers le lagon [Noël et al. 2015]. Ceci pourrait aussi favoriser la bioaccumulation du nickel, observée jusqu’à des concentrations exceptionnellement élevées dans certaines feuilles de palétuviers, même si les racines semblent limiter la translocation des métaux (Marchand et al., 2016).

Aval du cycle nucléaire

Contrôle minéralogique de la mobilité de l’uranium. Le cycle du combustible nucléaire génère des résidus miniers dont il est important de cerner l’impact environnemental. Dans le cadre de la thèse de Guillaume Othmane (2009-2012) effectuée sous la direction de T. Allard (CR CNRS IMPMC), N. Menguy (PR UPMC IMPMC) et M. Fayek (Univ. Manitoba) nous avons déterminé les formes chimiques de l’uranium dans des résidus miniers du site d’Uranium City, au Canada [Othmane et al. 2013a], ainsi que dans les opales du gisement de Nopal au Mexique [Othmane et al. 2013b ; 2016]. A Uranium City, l’uranium est présent essentiellement sous forme de groupements uranyles adsorbés sur des ferrihydrites, et dans une moindre mesure à des chlorites. Le piégeage de l’uranium repose donc sur des processus de sorption (Figure 7). A Nopal, nous avons mis en évidence la présence d’un minéral rare, la vorlanite (CaUO4), et d’uranyle sous la forme de complexes phosphatés ou hydroxo-polynucléaires tous piégés dans la silice. La luminescence, souvent utilisée pour la prospection, est ici proposée comme sonde de pH de formation des opales, en référence à différentes conditions de synthèse explorées en parallèle au laboratoire.

Avec l’IRSN, nous analysons la spéciation et la mobilité de l’uranium dans les sédiments lacustres impactés par des activités minières anciennes (projet NEEDS-USEDIM 2013-2015). Nous avons ainsi montré que l’uranium est essentiellement présent sous la forme de complexes sorbés de U(IV) et de phosphates de U(IV) nanocristallins dans ces sédiments [Morin et al. 2016]. Ceci remet en question la vision classique de l’immobilisation de l’uranium sous forme de UO2 insoluble, avec des implications sur le comportement de l’uranium lors de changement de conditions redox, en particulier après le curage des sédiments (projet NEEDS-RUMBA 2016-2017).

Biominéralisation des métalloïdes et des radionucléides dans les biofilms

Rôles des phosphates de fer microbiens. L’effort important que nous avons porté pour comprendre les mécanismes de la biominéralisation du fer nous a amené à mettre en évidence l’importance des phosphates de fer biogéniques. Nous avons par exemple montré que les phosphates ferriques amorphes, constituants majeurs de la ferritine bactérienne, sont des précurseurs de la formation intracellulaire des magnétites [Baumgartner et al., 2013]. Les phosphates de fer microbiens contrôlent également le cycle du phosphore dans certains milieux lacustres [Cosmidis et al. 2014]. En outre, ces phases nanocristallines sont capables de piéger des métalloïdes comme l’arsenic [Muehe et al. 2016] et des radionucléides dans les biofilms [Seder Colomina et al. 2014, 2015a]. Au cours de la thèse de Marina Seder Colomina (2011-2014) menée avec l’Université Paris Est et l’IRSTEA, nous avons notamment démontré le piégeage de l’uranium pas des phosphates de fer fixés sur des bactéries neutrophiles filamenteuses [Seder Colomina et al. 2015b].

Nano-oxydes pour la remédiation des pollutions

Les impuretés présentes dans les ferrihydrites naturelles (Al, Si, P, S…) sont actuellement très étudiées car elles peuvent modifier leur structure encore récemment débatue [Guyodo et al. 2012], leur formation et leur évolution [Miot et al. 2016] et leur propriétés de sorption vis-à-vis des contaminants. Lors de la thèse de Areej Adra (2010-2014), nous avons mis en évidence pour la première fois le piégeage de l’arsenic par des ferrihydrites alumineuses dans les sédiments de rivière à l’aval de la Mine de Carnoulès, Gard [Adra et al. 2013]. Nous avons aussi montré que la présence d’aluminium en substitution du fer dans la ferrihydrite modifie de façon majeure l’efficacité de la sorption de l’arsenic, avec des effets différents pour As(III) et As(V) [Adra et al. 2016].

Une nouvelle direction importante de nos travaux a concerné la recherche de propriétés de surface remarquables des nanoparticules naturelles et synthétiques. Les nano-magnétites piègent très efficacement de nombreux contaminants inorganiques tels que l’arsenic [Wang et al. 2014]. Au-delà de ces propriétés de sorption, nous avons récemment montré que les nano-magnétites possèdent une réactivité de surface particulière qui permet la production d’espèces réactives de l’oxygène (ROS, reactive oxygen species) capables d’oxyder et de dégrader des polluants organiques adsorbés à leur surface [Ardo et al., 2015]. Ce nouveau procédé qui ne nécessite pas d’oxydants forts, a fait l’objet d’une déclaration d’invention auprès de l’UPMC/CNRS/INRA. Ces travaux ont été réalisés au cours de la thèse de Sandy Ardo (2011-2014) avec Sylvie Nelieu (INRA) dans le cadre d’un projet Innovations Technologiques du Réseau de Recherche francilien sur le Développement Soutenable (R2DS) de la région IdF. Certaines nanoparticules biogéniques peuvent également se comporter comme des réducteurs chimiques pour une large variété de polluants, offrant ainsi des perspectives intéressantes pour des procédés alternatifs de traitement des eaux. Nous avons notamment validé un nouveau mécanisme de réduction des ions nitrate au travers d’un brevet déposé au cours de l’ANR ECOTECH (2010-2013) [Guerbois et al., Brevet 2016 - Réf. CNRS : 05970-01], mené en collaboration avec le LCPME à Nancy et plusieurs partenaires industriels (SAUR et Marion-Technology) (Thèse de Delphine Guerbois à l’IMPMC 2010-2013) [Guerbois et al. 2014 ; Ruby et al. 2016]. Ces thèmes seront poursuivi au cours des prochaines années en favorisant les interactions avec les partenaires de l’axe 3 « Interfaces, transport, reactivity in natural media » du LABEX MATISSE.

Pyrites nickélifères dans les sédiments de mangrove de Nouvelle Nouvelle Calédonie. LEs pyrites microcristallines riches en nickel sont les plus sensibles à la réoxydation par l'eau riche en oxygène apportée par la marée montante. Leur oxydation provoque une remobilisation partielle du nickel [Noël et al. 2015].

Collaborations

A l'IMPMC :

Biomineralogie (BIOMIN), notamment sur les processus de biominéralisations actuels et anciens
Théorie Quantique des Matériaux (TQM), notamment pour la modélisation des signatures spectroscopiques et des fractionnements isotopiques aux interfaces minéral-solution.
Minéralogie Magnétique de Basse Dimensionnalité (MIMABADI), pour son expertise en microscopie électronique et propriétés magnétiques des nanominéraux ferrifères
Minéralogie des Intérieurs Plénétaires (MIP), sur les impuretés OH dans les miénraux nominalement anhydres
Propriétés des Amorphes et des Liquides Minéraux (PALM), sur la cristallochimie des éléments traces

Au plan régional:

Fédération Ile-de-France de Recherche en Environnement (FIRE)
IPGP: Biogéochimie environnementale et Géochimie des Enveloppes Externes
METIS : Equipe Biogéochimie
ISTEP : Equipe Biominéralisations et Environnements Sédimentaires
INRA Versailles: ECOSYS
LABEX MATISSE

Au niveau National:

HYDROSCIENCES Montpellier
CAREN Géosciences Rennes
CEREGE Marseille
LEM, LCPME Nancy
ESRF, Institut Néél, LGIT Grenoble
GANIL Caen
ARAMIS Orsay
BRGM Orléans
ANDRA
IRSN Fontenay aux Roses

et à l'International:

Stanford University, Dept. Geol. Environ. Sciences, SLAC-SSRL EMSI
University of Michigan
EAWAG
Tübingen University
Cambridge University
Université de Sao Paolo

Avec les synchrotrons:

ESRF : FAME et FAME-UHD et BM23
SOLEIL : SAMBA, LUCIA, MARS
ELETTRA : XAFS
SSRL : Molecular Environmental Science

Enseignement

Master Sciences de l'Univers Environnement Ecologie de l'UPMC - Parcours "Hydrologie Hydrogéologie, Géochimie Environnementale", responsables L. Oudin et N. Lemoine (METIS), G. Morin (IMPMC),
Licence de Sciences, Technologie, Santé de l'UPMC - "Licence professionnelle Ressources et qualité de l'eau dans l'environnement RQEE", responsables P. Ribstein (METIS), G. Ona-Nguema (IMPMC)

Publications

2022

Heller, BM ; Riffel, SB ; Allard, T ; Morin, G ; Roig, JY ; Coueffe, R ; Aertgeerts, G ; Derycke, A ; Ansart, C ; Pinna-Jamme, R ; Gautheron, C (2022) Reading the climate signals hidden in bauxite. GEOCHIMICA ET COSMOCHIMICA ACTA 323 , pp.40-73

Fuchs, Y; Fourdrin, C; Balan, E (2022) Theoretical OH stretching vibrations in dravite. EUROPEAN JOURNAL OF MINERALOGY 34 (2) , pp.239-251

2021

Fritsch, E; Balan, E; Petit, S; Juillot, F (2021) Vibrational spectroscopic study of three Mg-Ni mineral series in white and greenish clay infillings of the New Caledonian Ni-silicate ores. EUROPEAN JOURNAL OF MINERALOGY 33 (6) , pp.743-763.

Balan, E ; Fritsch, E; Radtke, G; Paulatto, L; Juillot, F; Baron, F; Petit, S (2021) First-principles modeling of the infrared spectrum of Fe- and Al-bearing lizardite. EUROPEAN JOURNAL OF MINERALOGY 33 (5) , pp.647-657.

Guinoiseau, D; Fekiacova, Z; Allard, T; Druhan, JL; Balan, E; Bouchez, J (2021) Tropical Weathering History Recorded in the Silicon Isotopes of Lateritic Weathering Profiles. GEOPHYSICAL RESEARCH LETTERS 48 (19) e2021GL092957

Fritsch, E; Balan, E; Petit, S; Juillot, F (2021) Structural, textural, and chemical controls on the OH stretching vibrations in serpentine-group minerals. EUROPEAN JOURNAL OF MINERALOGY 33 (4) , pp.447-462

Battaglia-Brunet, F; Casiot, C; Fernandez-Rojo, L; Hery, M; Le Pape, P; Tris, H; Morin, G; Touze, S; Joulian, C (2021) Laboratory-Scale Bio-Treatment of Real Arsenic-Rich Acid Mine Drainage. WATER AIR AND SOIL POLLUTION 232 (8), 330.

Balan, E; Fritsch, E; Radtke, G; Paulatto, L; Juillot, F; Petit, S (2021) First-principles modeling of the infrared spectrum of antigorite. EUROPEAN JOURNAL OF MINERALOGY 33 (4) , pp.389-400

Merrot P., Juillot F., Le Pape P., Lefebvre P., Brest J., Kieffer I., Menguy N., Viollier E., Fernandez J-M., Moreton B., Radakovitch O., Morin G. (2021) Comparative Cr and Mn speciation across a shore-to-reef gradient in lagoon sediments downstream of Cr-rich Ferralsols upon ultramafic rocks in New Caledonia. Journal of Geochemical Exploration 229, 106845.

Balan, E; Fritsch; Juillot, F; Allard, T; Petit, S (2021) Local mode interpretation of the OH overtone spectrum of 1:1 phyllosilicates. EUROPEAN JOURNAL OF MINERALOGY 33 (2) , pp.209-220

Lefebvre P., Sabatier P., Mangeret A., Gourgiotis A., Le Pape P., Develle A-L., Louvat P., Diez O., Reyss J-L., Gaillardet J., Cazala C., Morin G. (2021) Climate-driven fluxes of organic-bound uranium to an alpine lake over the Holocene. Science of the Total Environment 783, 146878.

Baya C., Le Pape P., Baptiste B., Brest J., Landrot G., Elkaïm E., Noël V., Blanchard M., Ona-Nguema G., Juillot F., Morin G. (2021) Influence of trace level As or Ni on pyrite formation kinetics at low temperature. Geochimica et Cosmochimica Acta 300, 333-353.

Lefebvre P., Gourgiotis A., Mangeret A., Sabatier P., Le Pape P., Diez O., Louvat P., Menguy N., Merrot P., Baya C., Zebracki M., Blanchart P., Malet E., Jézéquel D., Reyss J.L., Bargar J.R., Gaillardet J., Cazala C., Morin G. (2021) Diagenetic formation of uranium-silica polymers in lake sediments over 3,300 years. Proceedings of the National Academy of Sciences of the United States of America 118, e2021844118.

Chasse, M; Lutfalla, S; Cecillon, L; Baudin, F; Abiven, S; Chenu, C; Barre, P (2021) Long-term bare-fallow soil fractions reveal thermo-chemical properties controlling soil organic carbon dynamics. BIOGEOSCIENCES 18 (5) , pp.1703-1718

2020

Le Pape P., Stetten L., M.O.J.Y. Hunault, Mangeret A., Brest J., Boulliard J-C., Morin G. (2020) HERFD-XANES spectroscopy at the U M4-edge applied to the analysis of U oxidation state in a heavily contaminated wetland soil. Applied Geochemistry 122, 104714.

Ona-Nguema G, Guerbois D, Pallud C, Brest J, Abdelmoula M, Morin G (2020) Biogenic Fe(II-III) Hydroxycarbonate Green Rust Enhances Nitrate Removal and Decreases Ammonium Selectivity during Heterotrophic Denitrification. Minerals 10, 818.

Mangeret A., Reyss J-L., Seder-Colomina M., Stetten L., Morin G., Thouvenot N., Souhaut M., van Beek P. (2020) Early diagenesis of radium 226 and radium 228 in lacustrine sediments influenced by former mining sites. Journal of environmental Radioactivity 222, 196324.

Gourgiotis A., Mangeret A., Manhes G., Blanchart P., Stetten L., Morin G., Le Pape P., Lefebvre P., Le Coz M., Cazala C. (2020) New Insights into Pb Isotope Fingerprinting of U-Mine Material Dissemination in the Environment: Pb Isotopes as a Memory Dissemination Tracer. Environmental Science and Technology 54, 797-806.

Stetten L., Lefebvre P., Le Pape P., Mangeret A., Blanchart P., Merrot P., Brest J., Julien A., Bargar J., Cazala C., Morin G. (2020) Experimental redox transformations of uranium phosphate minerals and mononuclear species in a contaminated wetland. Journal of Hazardous Materials 384, 121362. DOI : 10.1016/j.jhazmat.2019.121362

Balan, E; Paulatto, L; Liu, J; Ingrin, J (2020) Low-temperature infrared spectrum and atomic-scale structure of hydrous defects in diopside. EUROPEAN JOURNAL OF MINERALOGY 32 (5) , pp.505-520

Allard, T; Pereira, L; Mathian, M; Balan, E; Bueno, GT; Falgueres, C; do Nascimento, NR (2020) Dating kaolinite from the Neogene Ica Formation and overlying laterites, central Amazonia, Brazil: Constraints for a stratigraphic correlation. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 554, 109818

Balan E (2020) Theoretical infrared spectra of OH defects in corundum (alpha-Al2O3). EUROPEAN JOURNAL OF MINERALOGY 32 (5) , pp.457-467

Desmau, M; Levard, C; Vidal, V; Ona-Nguema, G; Charron, G; Benedetti, MF; Gelabert, A (2020) How microbial biofilms impact the interactions of Quantum Dots with mineral surfaces? NANOIMPACT 19, 100247.

Chasse, M; Blanchard, M; Cabaret, D; Juhin, A; Vantelon, D; Calas, G (2020) First-principles modeling of X-ray absorption spectra enlightens the processes of scandium sequestration by iron oxides. AMERICAN MINERALOGIST 105 (7) , pp.1099-1103

Jollands, MC; Blanchard, M; Balan, E (2020) Structure and theoretical infrared spectra of OH defects in quartz. EUROPEAN JOURNAL OF MINERALOGY 32 (3) , pp.311-323

2019

Bourles, Alexandre; Guentas, Linda; Chalkiadakis, Eleftherios; et al. (2019) New Caledonian ultramafic conditions structure the features of Curtobacterium citreum strains that play a role in plant adaptation. CANADIAN JOURNAL OF MICROBIOLOGY   Volume: 65   Issue: 12   Pages: 880-894.

Viennet, J-C; Bernard, S.; Le Guillou, C.; et al. (2019) Experimental clues for detecting biosignatures on Mars. GEOCHEMICAL PERSPECTIVES LETTERS   Volume: 12   Pages: 28-33.

Merrot, Pauline; Juillot, Farid; Noel, Vincent; et al. (2019) Nickel and iron partitioning between clay minerals, Fe-oxides and Fe-sulfides in lagoon sediments from New Caledonia. SCIENCE OF THE TOTAL ENVIRONMENT   Volume: 689   Pages: 1212-1227.

Balan, Etienne; Creon, Laura; Sanloup, Chrystele; et al. (2019) First-principles modeling of chlorine isotope fractionation between chloride-bearing molecules and minerals. CHEMICAL GEOLOGY   Volume: 525   Pages: 424-434.

Aufort, J.; Gommery, D.; Gervais, C.; et al. (2019) Assessing bone transformation in late Miocene and Plio-Pleistocene deposits of Kenya and South Africa. ARCHAEOMETRY   Volume: 61   Issue: 5   Pages: 1129-1143.

Asta, Maria P.; Wang, Yuheng; Frutschi, Manon; et al. (2019) Microbially Mediated Release of As from Mekong Delta Peat Sediments. ENVIRONMENTAL SCIENCE & TECHNOLOGY   Volume: 53   Issue: 17   Pages: 10208-10217.

Fritsch, Emmanuel Jean Charles; Juillot, Farid; Dublet, Gabrielle; et al. (2019) An alternative model for the formation of hydrous Mg/Ni layer silicates ("deweylite"/"garnierite") in faulted peridotites of New Caledonia: II. Petrography and chemistry of white and green clay infillings. EUROPEAN JOURNAL OF MINERALOGY   Volume: 31   Issue: 5-6   Pages: 945-962.

Vincent, Bryan; Juillot, Farid; Fritsch, Emmanuel; et al. (2019) A leguminous species exploiting alpha- and beta-rhizobia for adaptation to ultramafic and volcano-sedimentary soils: an endemic Acacia spirorbis model from New Caledonia. FEMS MICROBIOLOGY ECOLOGY   Volume: 95   Issue: 8     Article Number: fiz099.

Aufort, Julie; Gervais, Christel; Segalen, Loic; et al. (2019) Atomic scale transformation of bone in controlled aqueous alteration experiments. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY   Volume: 526   Pages: 80-95.

Zeyen, Nina; Benzerara, Karim; Menguy, Nicolas; et al. (2019) Fe-bearing phases in modern lacustrine microbialites from Mexico (2019) GEOCHIMICA ET COSMOCHIMICA ACTA   Volume: 253   Pages: 201-230.

Mathian, Maximilien; Aufort, Julie; Braun, Jean-Jacques; et al. (2019) Unraveling weathering episodes in Tertiary regoliths by kaolinite dating (Western Ghats, India). GONDWANA RESEARCH   Volume: 69   Pages: 89-105.

Ploquin, Florian; Fritsch, Emmanuel; Guigner, Jean Michel; et al. (2019) Phyllomanganate vein-infillings in faulted and Al-poor regoliths of the New Caledonian ophiolite: periodic and sequential crystallization of Ni-asbolane, Alk-birnessite and H-birnessite. EUROPEAN JOURNAL OF MINERALOGY   Volume: 31   Issue: 2   Pages: 335-352.

Fernandez-Rojo, L.; Casiot, C.; Laroche, E.; et al. (2019) A field-pilot for passive bioremediation of As-rich acid mine drainage. JOURNAL OF ENVIRONMENTAL MANAGEMENT   Volume: 232   Pages: 910-918.

Couasnon, Thais; Gelabert, Alexandre; Ona-Nguema, Georges; et al. (2019) Experimental assessment of occurrences and stability of lead-bearing minerals in bacterial biofilms. CHEMICAL GEOLOGY   Volume: 505   Pages: 23-35.

Hajji, S.; Montes-Hernandez, G.; Sarret, G.; et al. (2019) Arsenite and chromate sequestration onto ferrihydrite, siderite and goethite nanostructured minerals: Isotherms from flow-through reactor experiments and XAS measurements. JOURNAL OF HAZARDOUS MATERIALS   Volume: 362   Pages: 358-367.

Balan, Etienne; Aufort, Julie; Saldi, Giuseppe D.; et al. (2019) Line-broadening and anharmonic effects in the attenuated total reflectance infrared spectra of calcite. EUROPEAN JOURNAL OF MINERALOGY   Volume: 31   Issue: 1   Pages: 73-81.

2018

Le Pape, Pierre; Blanchard, Marc; Juhin, Amelie; et al. (2018) Local environment of arsenic in sulfide minerals: insights from high-resolution X-ray spectroscopies, and first-principles calculations at the As K-edge. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY   Volume: 33   Issue: 12   Pages: 2070-2082

Stetten, Lucie; Blanchart, Pascale; Mangeret, Arnaud; et al. (2018) Redox Fluctuations and Organic Complexation Govern Uranium Redistribution from U(IV)-Phosphate Minerals in a Mining-Polluted Wetland Soil, Brittany, France. ENVIRONMENTAL SCIENCE & TECHNOLOGY   Volume: 52   Issue: 22   Pages: 13099-13109

Fernandez-Rojo, Lidia; Casiot, Corinne; Tardy, Vincent; et al. (2018) Hydraulic retention time affects bacterial community structure in an As-rich acid mine drainage (AMD) biotreatment process. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY   Volume: 102   Issue: 22   Pages: 9803-9813

Saldi, Giuseppe D.; Noireaux, Johanna; Louvat, Pascale; et al. (2018) Boron isotopic fractionation during adsorption by calcite - Implication for the seawater pH proxy. GEOCHIMICA ET COSMOCHIMICA ACTA   Volume: 240   Pages: 255-273   Published: NOV 1 2018

Houles, Anne; Vincent, Bryan; David, Magali; et al. (2018) Ectomycorrhizal Communities Associated with the Legume Acacia spirorbis Growing on Contrasted Edaphic Constraints in New Caledonia. MICROBIAL ECOLOGY   Volume: 76   Issue: 4   Pages: 964-975.

Desmau, M ; Gelabert, A ; Levard, C ; Ona-Nguema, G ; Vidal, V ; Stubbs, JE ; Eng, PJ ; Benedetti, MF (2018) Dynamics of silver nanoparticles at the solution/biofilm/mineral interface. ENVIRONMENTAL SCIENCE-NANO 5, 2394-2405

Seder-Colomina, Marina; Mangeret, Arnaud; Stetten, Lucie; et al. (2018) Carbonate Facilitated Mobilization of Uranium from Lacustrine Sediments under Anoxic Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY   Volume: 52   Issue: 17   Pages: 9615-9624

Crepisson, Celine; Sanloup, Chrystele; Cormier, Laurent; et al. (2018) Kr environment in feldspathic glass and melt: A high pressure, high temperature X-ray absorption study. CHEMICAL GEOLOGY Volume: 493 Pages: 525-531.

Bonnot, Caroline A.; Gelabert, Alexandre; Louvat, Pascale; et al. (2018) Trace metals dynamics under contrasted land uses: contribution of statistical, isotopic, and EXAFS approaches. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH   Volume: 25   Issue: 24   Pages: 23383-23403

Amor, Matthieu; Busigny, Vincent; Louvat, Pascale; et al. (2018) Iron uptake and magnetite biomineralization in the magnetotactic bacterium Magnetospirillum magneticum strain AMB-1: An iron isotope study. GEOCHIMICA ET COSMOCHIMICA ACTA   Volume: 232   Pages: 225-243.

Allard, Thierry; Beaufort, Daniel; Mathian, Maximilien; et al. (2018) Radioactivity recorded by clay minerals in the Shea Creek area, Athabasca Basin (Canada): Implications for uranium transfers and exploration. JOURNAL OF GEOCHEMICAL EXPLORATION   Volume: 188   Pages: 340-349.

Ducher, Manoj; Blanchard, Marc; Balan, Etienne (2018) Equilibrium isotopic fractionation between aqueous Zn and minerals from first-principles calculations. CHEMICAL GEOLOGY   Volume: 483   Pages: 342-350.

Wang, Yuheng; Le Pape, Pierre; Morin, Guillaume; et al. (2018) Arsenic Speciation in Mekong Delta Sediments Depends on Their Depositional Environment. ENVIRONMENTAL SCIENCE & TECHNOLOGY   Volume: 52   Issue: 6   Pages: 3431-3439.

Vincent, Bryan; Jourand, Philippe; Juillot, Farid; et al. (2018) Biological in situ nitrogen fixation by an Acacia species reaches optimal rates on extremely contrasted soils. EUROPEAN JOURNAL OF SOIL BIOLOGY   Volume: 86   Pages: 52-62.

Allard, Thierry; Gautheron, Cecile; Riffel, Silvana Bressan; et al. (2018) Combined dating of goethites and kaolinites from ferruginous duricrusts. Deciphering the Late Neogene erosion history of Central Amazonia. CHEMICAL GEOLOGY   Volume: 479   Pages: 136-150.

Aufort, Julie; Lebon, Matthieu; Gallet, Xavier; et al. (2018) Macroscopic electrostatic effects in ATR-FTIR spectra of modern and archeological bones. AMERICAN MINERALOGIST   Volume: 103   Issue: 2   Pages: 326-329.

Balan, Etienne; Noireaux, Johanna; Mavromatis, Vasileios; et al. (2018) Theoretical isotopic fractionation between structural boron in carbonates and aqueous boric acid and borate ion. GEOCHIMICA ET COSMOCHIMICA ACTA   Volume: 222   Pages: 117-129.

Crepisson, Celine; Blanchard, Marc; Lazzeri, Michele; et al. (2018) New constraints on Xe incorporation mechanisms in olivine from first-principles calculations. GEOCHIMICA ET COSMOCHIMICA ACTA   Volume: 222   Pages: 146-155.

Stetten, L.; Mangeret, A.; Brest, J.; et al. (2018) Geochemical control on the reduction of U(VI) to mononuclear U(IV) species in lacustrine sediments. GEOCHIMICA ET COSMOCHIMICA ACTA   Volume: 222   Pages: 171-186.

2017

Aufort, Julie; Segalen, Loic; Gervais, Christel; et al. (2017) Site-specific equilibrium isotopic fractionation of oxygen, carbon and calcium in apatite. GEOCHIMICA ET COSMOCHIMICA ACTA   Volume: 219   Pages: 57-73.

Martin, Erwan; Bindeman, Ilya; Balan, Etienne; et al. (2017) Hydrogen isotope determination by TC/EA technique in application to volcanic glass as a window into secondary hydration. JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH   Volume: 348   Pages: 49-61.

Dublet, Gabrielle; Juillot, Farid; Brest, Jessica; et al. (2017) Vertical changes of the Co and Mn speciation along a lateritic regolith developed on peridotites (New Caledonia). GEOCHIMICA ET COSMOCHIMICA ACTA   Volume: 217   Pages: 1-15.

Fernandez-Rojo, L.; Hery, M.; Le Pape, P.; et al. (2017) Biological attenuation of arsenic and iron in a continuous flow bioreactor treating acid mine drainage (AMD). WATER RESEARCH   Volume: 123   Pages: 594-606.

Wattelez, Guillaume; Dupouy, Cecile; Lefevre, Jerome; et al. (2017) Application of the Support Vector Regression Method for Turbidity Assessment with MODIS on a Shallow Coral Reef Lagoon (Voh-Kone-Pouembout, New Caledonia). WATER   Volume: 9   Issue: 10     Article Number: 737.

Noel, Vincent; Juillot, Farid; Morin, Guillaume; et al. (2017) Oxidation of Ni-Rich Mangrove Sediments after Isolation from the Sea (Dumbea Bay, New Caledonia): Fe and Ni Behavior and Environmental Implications. ACS EARTH AND SPACE CHEMISTRY   Volume: 1   Issue: 8   Pages: 455-464.

Guinoiseau, Damien; Gelabert, Alexandre; Allard, Thierry; et al. (2017) Zinc and copper behaviour at the soil-river interface: New insights by Zn and Cu isotopes in the organic-rich Rio Negro basin. GEOCHIMICA ET COSMOCHIMICA ACTA   Volume: 213   Pages: 178-197.

Radtke, G.; Taverna, D.; Lazzeri, M.; et al.(2017) First-Principles Vibrational Electron Energy Loss Spectroscopy of beta-Guanine. PHYSICAL REVIEW LETTERS   Volume: 119   Issue: 2     Article Number: 027402.

Ducher, Manoj; Pietrucci, Fabio; Balan, Etienne; et al. (2017) van der Waals Contribution to the Relative Stability of Aqueous Zn(2+) Coordination States. JOURNAL OF CHEMICAL THEORY AND COMPUTATION   Volume: 13   Issue: 7   Pages: 3340-3347.

Balan E., Blanchard M., Lazzeri M., Ingrin J. (2017) Theoretical Raman spectrum and anharmonicity of tetrahedral OH defects in hydrous forsterite. EUROPEAN JOURNAL OF MINERALOGY   Volume: 29   Issue: 2   Pages: 201-212.

Balan E., Aufort J., Pouillé S., Dabos M., Blanchard M., Lazzeri M., Rollion-Bard C., Blamart D. (2017) Infrared spectroscopic study of sulfate-bearing calcite from deep-sea bamboo coral. European Journal of Mineralogy (accepted).

Jimenez-Ruiz, M.; Ferrage, E.; Blanchard, M.; et al. (2017) Combination of Inelastic Neutron Scattering Experiments and ab Initio Quantum Calculations for the Study of the Hydration Properties of Oriented Saponites. JOURNAL OF PHYSICAL CHEMISTRY C   Volume: 121   Issue: 9   Pages: 5029-5040.

Till, Jessica L.; Guyodo, Yohan; Lagroix, France; et al. (2017) Presumed magnetic biosignatures observed in magnetite derived from abiotic reductive alteration of nanogoethite. COMPTES RENDUS GEOSCIENCE   Volume: 349   Issue: 2   Pages: 63-70.

Laine M., Balan, E., Allard T. Paineau E., Jeunesse P., Mostafavi M., Robert JL., Le Caer S. (2017) Reaction mechanisms in swelling clays under ionizing radiation: influence of the water amount and of the nature of the clay mineral. RSC Advances 7, 526-534.

Blanchard M., Ingrin J., Balan E., Kovacs I, Withers A. (2017) Effect of iron and trivalent cations on OH-defects in olivine. American Mineralogist 102, 302-311.

Blanchard, Marc; Balan, Etienne; Schauble, Edwin A. (2017) Equilibrium Fractionation of Non-traditional Isotopes: a Molecular Modeling Perspective. Edited by: Teng, FZ; Watkins, J; Dauphas, N.. NON-TRADITIONAL STABLE ISOTOPES   Book Series: Reviews in Mineralogy and Geochemistry 82, 27-63.

Brovarone AV, Martinez I., Elmaleh A., Compagnoni R., Chaduteau C., Ferraris C., Esteve I. Massive production of abiotic methane during subduction evidenced in metamorphosed ophicarbonates from the Italian Alps. Nature Communications 8, 14134, 1-13.

Le Pape P., Blanchard M., Brest J., Boulliard J.C., Ikogou M., Stetten L., Wang S., Landrot G., Morin G. (2017) Arsenic incorporation in pyrite at ambient temperature at both tetrahedral S-I and octahedral Fe+II sites: evidence from EXAFS-DFT analysis. Environmental Science and Technology 51, 150-158.

Le Pape P., Battaglia-Brunet F., Parmentier M., Joulian C., Gassaud C., Fernandez-Rojo L., Guigner J-M., Ikogou M., Stetten L., Olivi L., Casiot C., Morin G. (2017) Complete removal of arsenic and zinc from a heavily contaminated Acid Mine Drainage via an indigenous SRB consortium. Journal of Hazardous Materials 321, 764-772.

Ikogou M., Ona-Nguema G., Juillot, F., Le Pape P., Menguy N., Richeux N., Guigner J.-M., Noël V., Brest J., Baptiste B., Morin G. (2017) Long-term sequestration of nickel after mackinawite formation by Desulfovibrio capillatus upon Fe(III)-citrate reduction in the presence of thiosulfate, Applied Geochemistry 80 (2017) 143-154.

Marchand, C., (2017) Soil carbon stocks and burial rates along a mangrove forest chronosequence (French Guiana). Forest Ecology and Management 384, 92-99.

Leopold A., Marchand C., Deborde J., Allenbach M. (2017) Water biogeochemistry of a mangrove-dominated estuary under a semi-arid climate (New Caledonia). Estuaries and Coasts 40, 773-791.

Grellier, S., Janeau, J-L., Nhon Dang Hoai, Cuc Nguyen Thi Kim, Quynh Le Thi Phuong, Thao Pham Thi Thu, Nhu-Trang Tran-Thi , Marchand, C. (2017). Changes in soil characteristics and C dynamics after mangrove clearing (Vietnam), Science of The Total Environment, 593–594, 654-663.

Morin, G.; Noel, V.; Menguy, N.; et al. (2017) Nickel accelerates pyrite nucleation at ambient temperature. GEOCHEMICAL PERSPECTIVES LETTERS   Volume: 5   Pages: 6-11.

2016

Amor M., Busigny V., Louvat P., Gelabert A., Cartigny P., Durand-Dubief M., Ona-Nguema G., Alphandery E., Chebbi I., Guyot F. (2016). Mass-dependent and -independent signature of Fe isotopes in magnetotactic bacteria, Science 352(6286), 705-708, DOI: 10.1126/science.aad7632

Adra A., Morin G., Ona-Nguema G., Brest J. (2016) Arsenate and Arsenite Adsorption onto Al-containing ferrihydrites. Implications for Arsenic Immobilization After Neutralization of Acid Mine Drainage. Applied Geochemistry 64, 2-9. doi:10.1016/j.apgeochem.2015.09.015.

Aufort J., Ségalen L., Gervais C., Brouder C., Balan E. (2016) Modeling the attenuated total reflectance infrared (ATR-FTIR) spectrum of apatite. Physics and Chemistry of Minerals 43, 615-626.

Balan E., Pietrucci F., Gervais C., Blanchard M., Schott J., Gaillardet J. (2016) First-principles study of boron speciation in calcite and aragonite. Geochimica et Cosmochimica Acta, 193, 119-131.

Bonnot C., Gélabert A., Louvat P., Morin G., Proux O., Benedetti M.F. (2016) Trace metals dynamics under contrasted land uses: contribution of statistical, isotopic and EXAFS approaches. Environmental Science and Pollution Research doi:10.1007/s11356-016-6901-0, pages 1-21.

Brigo L, Faustini M, Pistore A, Ferraris C, Schutzmann S, Brusatin G (2016): Porous inorganic thin films from bridged silsesquioxane sol–gel precursors. Journal of Non-Crystalline Solids 432 (B), 399-405.

Chevrinais M., Balan E., Cloutier R. (2016) Insights in the diagenesis and taphonomy of a 380-million-year-old paleoestuary (Miguasha, Eastern Canada) revealed by the preservation of acanthodian soft and hard tissues. Minerals 2016, 6(1), 1; doi:10.3390/min6010001

Della Patrona L, Marchand C, Hubas, C, Molnar N, Deborde J, and Meziane T. 2016 Meiofauna as an indicator for assessing the impact of shrimp farming effluents in a mangrove forest (New Caledonia). Marine Environmental Research .

Ducher M., Blanchard M., Vantelon D., Nemausat R., Cabaret D. (2016) Probing the local environment of substitutional Al3+ in goethite using X-ray absorption spectroscopy and first-principles calculations. Physics and Chemistry of Minerals, 43, 217-227.

Ducher M., Blanchard M., Balan E. (2016) Equilibrium zinc isotope fractionation in Zn-bearing minerals from first-principles calculations. Chemical Geology, 443, 87-96.

Fritsch E., Juillot F., Dublet G., Fonteneau L., Fandeur D., Martin E., Caner L., Auzende A.L., Grauby O., Robert J.L. and Beaufort D. (2016) An alternative model for the formation of hydrous Mg/Ni silicate ore (deweylite/garnierite) in Ni-laterite deposits from New Caledonia: I. Texture and mineralogy of a sequence of mineral assemblages in silicate infillings of reactivated serpentinized faults. European Journal of Mineralogy, 28, 295-311.

Guyodo Y., Bonville P., Till J.L., Ona-Nguema G., Lagroix F., Menguy N. (2016) Constraining the Origins of the Magnetism of Lepidocrocite (γ-FeOOH): A Mössbauer and Magnetization Study. Front. Earth Sci., 4, 1-9, doi.org/10.3389/feart.2016.00028

Lainé M., Allard T., Balan E., Martin F., Von Bardeleben H.J., Robert J.-L., Le Caer S. (2016) Reaction mechanisms in talc under ionizing radiation: evidence of a high stability of H° atoms. Journal of Physical Chemistry C, 120, 2087-2095.

Leopold, A, Marchand, C, Renchon, A; Deborde, J., Quiniou, T, Allenbach, M. (2016) Net ecosystem CO2 exchange of “Le Coeur de Voh” mangrove: evidences of water stress controls on mangrove productivity under semi-arid climate (New Caledonia). Agricultural Forest Meteorology 223, 217-232.

Marchand, C., Fernandez, J.-M., Moreton, B., 2016. Trace metals geochemistry in mangrove sediments and their transfer to mangrove plants (New Caledonia). Science of Total Environment, 562, 216-227.

Miot J., Lu S., Morin G., Adra A., Benzerara K., Küsel K. (2016) Iron mineralogy across the oxycline of a lignite mine lake. Chemical Geology 434, 28-42.

Morin G., Mangeret A., Othmane G., Stetten L., Seder-Colomina M., Brest J., Ona-Nguema G., Bassot S., Courbet C., Guillevic J., Thouvenot A., Mathon O., Proux O., Bargar J.R. (2016) Mononuclear U(IV) complexes and ningyoite as major uranium species in lake sediments. Geochemical Perspectives Letters 2, 95-105.

Muehe E.M., Morin G., Scheer L., Le Pape P., Esteve I., Daus B., Kappler A. (2016) Arsenic(V) incorporation in vivianite during microbial reduction of arsenic(V)-bearing biogenic Fe(III) (oxyhydr)oxides. Environmental Science and Technology 50, 2281-2291.

Othmane G., Allard T., Vercouter T., Morin G., Fayek M., Calas G. (2016) Luminescence of uranium-bearing opals: Origin and use as a pH record. Chemical Geology 423, 1-6.

Resongles E., Le Pape P., Fernandez-Rojo L., Morin G., Delpoux S., Brest J., Guo S. and Casiot C. (2016) Routine determination of inorganic arsenic speciation in precipitates from acid mine drainage using orthophosphoric acid extraction followed by HPLC-ICP-MS. Analytical methods DOI: 10.1039/c6ay02084d

Riegler, T; Beaufort, MF; Allard, T; Pierson-Wickmann, AC; Beaufort, D (2016) Nanoscale relationships between uranium and carbonaceous material in alteration halos around unconformity-related uranium deposits of the Kiggavik camp, Paleoproterozoic Thelon Basin, Nunavut, Canada. Ore Geology Reviews 79, 382-391.

Riegler, T; Allard, T; Beaufort, D; Cantin, JL; von Bardeleben, HJ (2016) The thermal stability of radiation-induced defects in illite. Physics and Chemistry of Minerals 43, 23-30.

Ruby C., Naille S., Ona-Nguema G., Morin G, Mallet M., Guerbois D., Barthélémy K., Etique M., Zegeye A., Zhang Y.; Boumaïza H., Al-Jaberi M., Renard A., Noël V., Binda P., Hanna K., Despas C., Abdelmoula M., Kukkadapu R., Sarrias J., Albignac M., Rocklin P., Nauleau F., Hyvrard N., Génin J.-M.R. (2016). Use of Ferrihydrite-Coated Pozzolana and Biogenic Green Rust to Purify Wastewater Containing Phosphate and Nitrate. Current Inorganic Chemistry, 6, 100-118.

Volant A., Héry M., Desoeuvre A., Casiot C., Morin G., Bertin P.N., Bruneel O. (2016) Spatial Distribution of Eukaryotic Communities Using High-Throughput Sequencing Along a Pollution Gradient in the Arsenic-Rich Creek Sediments of Carnoulès Mine, France. Microbial Ecology 72, 608-620.

Wang Y., Gélabert A., Michel F.M., Choi Y., Gescher J., Ona-Nguema G., Eng P.J., Bargar J.R., Farges F., Spormann A., Brown, G.E. Jr. (2016) Effect of biofilm coatings at metal-oxide/water interfaces I: Pb(II) and Zn(II) partitioning and speciation at Shewanella oneidensis/metal-oxide/water interfaces. Geochimica Cosmochimica Acta, 188, 368–392.

2015

Amor M., Busigny V., Durand-Dubief M., Tharaud M., Ona-Nguema G., Gelabert A., Alphandery E., Menguy N., Benedetti M.F., Chebbi I., Guyot F. (2015). Chemical signature of magnetotactic bacteria, Proceedings of the National Academy of Sciences of the United States of America (PNAS) 112(6), 1699-1703.

Ardo S.G., Nelieu S., Ona-Nguema G., Delarue G, Brest J., Pironin E., Morin G. (2015) Oxidative Degradation of Nalidixic Acid by Nano-magnetite via Fe2+/O2-Mediated Reactions. Environmental Science and Technology 49, 4506-4514.

Aschenbroich, A., Marchand, C., Molnar, N., Deborde, J., Hubas, C., Rybarczyk, H, Meziane, T. 2015. Spatio-temporal variations of the composition of organic matter at surface sediments in a mangrove receiving shrimp farm effluents (Saint Vincent Bay, New Caledonia). Science of Total Environment 512-513, 296-307.

Bernard S., Benzerara K., Beyssac O., Balan E., Brown Jr. G.E. (2015) Evolution of the macromolecular structure of sporopollenin during thermal degradation as documented by infrared, Raman and C-XANES spectroscopies. Heliyon, 1, e00034

Blanchard M., Dauphas N., Hu M.Y., Roskoz M., Alp E.E., Golden D.C., Sio S.K., Tissot F.L.H., Zhao J., Gao L., Morris R.V., Fornace M., Floris A., Lazzeri M., Balan E. (2015) Reduced partition function ratios of iron and oxygen in goethite. Geochimica et Cosmochimica Acta 151, 19-33.

EBoulard E., Goncharov A., Blanchard M., Mao W. (2015) Pressure-induced phase transition in MnCO3 and its implications on the deep carbon cycle. Journal of Geophysical Research: Solid Earth, 120, 4069-4079.
Debenay J-P, Marchand C., Molnar N., Aschenbroich A., Meziane T. 2015. Foraminiferal assemblages as bioindicators to assess potential pollution of mangroves acting as a natural biofilter for shrimp farm effluents (New Caledonia). Marine Pollution Bulletin 93, 103-120.

Deborde, J., Marchand, C., Molnar, N., Della Patrona, L., Meziane, T., 2015. Concentrations and fractionation of C, N, P, Fe, and S in mangrove sediments along an intertidal gradient (New Caledonia). The Journal of Marine Science and Engineering 3, 52-7.

Dublet G., Juillot F., Morin G., Fritsch E., Fandeur D., Brown Jr G.E. (2015) Goethite aging explains Ni depletion in upper units of ultramafic lateritic ores from New Caledonia. Geochimica et Cosmochimica Acta 160, 1-15.

Ferraris C, Lorand JP (2015) : Novodneprite (AuPb3), anyuiite [Au(Pb, Sb)(2)] and gold micro- and nano-inclusions within plastically deformed mantle-derived olivine from the Lherz peridotite (Pyrenees, France): a HRTEM-AEM-EELS study. Physics and Chemistry of Minerals 42, 143-150.

Laporte S., Finocchi F., Paulatto L., Blanchard M., Balan E., Guyot F., Saitta A.M. (2015) Strong electric fields at a prototypical oxide/water interface probed by ab initio molecular dynamics: MgO(001). Physical Chemistry Chemical Physics, 17(31):20382-90.

Leopold A.; Marchand C., Deborde J., Allenbach M. (2015) Temporal variability of CO2 fluxes at the sediment-air interface in mangroves (New Caledonia). Science of Total Environment, 502 617–626.

Marsac R., Davranche M., Morin G., Takahashi Y., Gruau G., Dia A. (2015) Effect of loading on the nature of the REE-humate complexes as determined by Yb3+ and Sm3+ LIII-edge EXAFS analysis. Chemical Geology 396, 218-227.

Mulholland D.S., Poitrasson F., Boaventura G.R., Allard T., Cruz vieira L., Santos R.V., Mancini L., Seyler P. (2015) Insights into iron sources and pathways in the Amazon river provided by isotopic and spectroscopic studies. Geochimica et Cosmochimica Acta, 150, 142-159.

Noël V., Morin G., Juillot F., Marchand C., Brest J., Bargar J.R., Muñoz M., Marakovic G., Ardo S., Brown Jr. G.E. (2015) Ni cycling in mangrove sediments from New Caledonia. Geochimica et Cosmochimica Acta 169, 82–98.

Pinilla C., Blanchard M., Balan E., Vuilleumier R., Mauri F. (2015) Equilibrium magnesium isotope fractionation between Mg2+(aq) and carbonate minerals: insights from path integral molecular dynamics. Geochimica et Cosmochimica Acta, 163, 126-139.

ESeder-Colomina M., Goubet A., Lacroix S., Morin G., Ona-Nguema G., Esposito G., van Hullebusch E. D., Pernelle J-J., (2015a) Moderate oxygen depletion as a factor favouring the filamentous growth of Sphaerotilus natans. Antonie van Leeuwenhoek 107, 1135-1144.

Seder-Colomina M., Morin G., Brest J., Ona-Nguema G., Gordien N., Pernelle J.J., Banerjee D., Mathon, O., Esposito G., Van Hullebusch E. (2015b) Uranium(VI) scavenging by amorphous iron phosphate encrusting Sphaerotilus natans filaments. Environmental Science and Technology 49, 14065–14075.

Till J.L., Guyodo Y., Lagroix F., Morin G., Ona-Nguema G. (2015) Goethite as a potential source of magnetic nanoparticles in sediments. Geology 43, 75-78.

Zeyen N., Benzerara K., Li J., Groleau A., Balan E., Robert J.-L., Esteve I., Tavera R., Moreira D., Lopez-Garcia P. (2015) Formation of low-T hydrated silicates in modern microbialites from Mexico and implications for microbial fossilization. Frontiers in Earth Science 3:64. doi: 10.3389/feart.2015.00064

2014

Baikie T, Schreyer M, Wei F, Herrin JS, Ferraris C, Brink F, Topolska J, Piltz RO, Price J, White TJ (2014): The influence of stereochemically active lone-pair electrons on crystal symmetry and twist angles in lead apatite-2H type structures. Mineralogical Magazine, 78(2), 325-345.

Balan E., Bish DL, Calas G. (2014) Kaolin-group minerals: from hydrogen-bonded layers to environmental recorders. Elements, 10, 183-188.

Balan E., Blanchard M., Pinilla C., Lazzeri M. (2014) First-principles modeling of sulfate incorporation and 34S/32S isotopic fractionation in different calcium carbonates. Chemical Geology, 374–375, 84-91.

Balan E., Blanchard M., Lazzeri M., Ingrin J. (2014) Contribution of interstitial OH groups to the incorporation of water in forsterite. Physics and Chemistry of Minerals, 41, 105-114.

Blanchard M., Balan E., Giura P., Béneut K., Yi H., Morin G., Pinilla C., Lazzeri M., Floris A. (2014) Infrared spectroscopic properties of goethite : anharmonic broadening, long-range electrostatic effects and Al substitution. Physics and Chemistry of Minerals 41, 289-302.

Cosmidis J., Benzerara K., Morin G., Busigny V., Lebeau O, Jezequel D., Noël V., Dublet G., Othmane G. (2014) Biomineralization of iron-phosphates in the water column of Lake Pavin (Massif Central, France). Geochimica et Cosmochimica Acta 126, 78-96.

Crépisson C., Blanchard M., Bureau H., Sanloup C., Withers A.C., Khodja H., Surblé K., Béneut K., Leroy C., Giura P., Balan E. (2014) Clumped fluoride-hydroxyl defects in forsterite: Implications for the upper mantle. Earth and Planetary Science Letters, 390, 287-295.

Crépisson C., Bureau H., Blanchard M., Ingrin J., Balan E. (2014) Theoretical infrared spectrum of partially protonated cationic vacancies in forsterite. European Journal of Mineralogy, 26, 203-210. Journal IF = 1.46
Dublet G., Juillot F., Morin G., Fritsch E., Noël V., Brest J., Brown Jr. G.E. (2014) XAS Evidence for Ni Sequestration by Siderite in a Lateritic Ni-Deposit from New Caledonia. American Mineralogist 99, 225-234.

Ferraris C, Parodi GC, Pont S, Rondeau B, Lorand J-P (2014): Trinepheline and Fabriesite: two new mineral species from the jadeite deposit of Tawmaw (Myanmar). European Journal of Mineralogy, 26, 257-265.

Ferrand J ., Rossano S ., Rollet Ph ., Allard Th., Cordier P., Catillon G., Auxiette G., Farges F., Pont S. (2014) On the origin of the green colour of archaeological bone artefacts of galloroman period. Archaeometry 56, 6, 1024–1040.

Genin J.-M.R., Mills S.J., Christy A.G., Guerin O., Herbillon A.J., Kuzman E., Morin G., Ona-Nguema G., Ruby C. and Upadhyay C. (2014) Mössbauerite, Fe3+6O4(OH)8CO3•3H2O, the first fully oxidized ‘green rust’ mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78(2), 447-465.

Guerbois G., Ona-Nguema G., Morin G., Abdelmoula M., Laverman A. M., Mouchel J.M, Barthelemy K., Brest J. (2014) Nitrite reduction by biogenic hydroxycarbonate green rust: Evidence for a nitrite green rust as intermediate reaction product. Environmental Science and Technology 48, 4505-4514.

Ingrin J., Kovacs I., Deloule E., Balan E., Blanchard M., Kohn S.C., Hermann J. (2014) Identification of hydrogen defects linked to boron substitution in forsterite and olivine. American Mineralogist (Letter), 99, 2138-2141.

Le Pape P., Quantin C., Morin G., Jouvin D., Kieffer I., Proux O., Ghanbaja J., Ayrault S. (2014) Zinc Speciation in the Suspended Particulate Matter of an Urban River (Orge, France): Influence of Seasonality and Urbanization Gradient. Environmental Science and Technology 48, 11901-11909.

Lee, S.Y., Primavera, J.H., Dahdouh-Guebas, F., McKee, K., Bosire, J.O., Cannicci, S., Diele, K., Fromard, F., Koedam, N., Marchand, C., Mendelssohn, I., Mukherjee, N., Record, S. 2014. Redefining the ecological role and services of tropical mangrove ecosystems. Journal of Global Ecology and Biogeography, Volume 23, Issue 7, pages 726–743.

Li J., Bernard S., Benzerara K., Beyssac O., Allard T., Cosmidis J., Moussou J. (2014) Impact of biomineralization on the preservation of microorganismss during fossilizatiton : an experimental perspective. Earth and Planetary Science Letters, 400, 113-122.

Miot J., Li J., Benzerara K., Sougrati M. T., Ona-Nguema G., Bernard S., Jumas J.-C., Guyot F. (2014) Formation of single domain magnetite by green rust oxidation promoted by microbial anaerobic nitrate-dependent iron oxidation. Geochim Cosmochim Acta, 139, 327–343.

Molnar, N., Marchand, C., Deborde, J., Della Patrona,L., Meziane, T., 2014 Seasonal pattern of the biogeochemical properties of mangrove sediments receiving shrimp farm effluents (New Caledonia). Journal of Aquaculture and Research Development 5-5.

Noël V., Marchand C., Juillot F., Ona-Nguema G., Viollier E., Marakovic G., Olivi L., Delbes L., Gelebart F., Morin G. (2014) EXAFS analysis of iron cycling in mangrove sediments downstream of a lateritized ultramafic watershed (Vavouto Bay, New Caledonia). Geochimica et Cosmochimica Acta 136, 211-228.

Pinilla C., Blanchard M., Balan E., Ferlat G., Vuilleumier R., Mauri F. (2014) Equilibrium isotope fractionation of H and O isotopes from path integral molecular dynamics. Geochimica et Cosmochimica Acta 135, 203-216.

Seder-Colomina M., Morin G., Benzerara K., Ona-Nguema G., Pernelle J-J., Esposito G., van Hullebusch E. D. (2014) Sphaerotilus natans, a neutrophilic iron-related sheath-forming bacterium: perspectives for metal remediation strategies. Geomicrobiology Journal 31, 64-75.

Till J. L., Guyodo Y., Lagroix F., Ona-Nguema G., Brest J. (2014) Magnetic comparison of abiogenic and biogenic alteration products of lepidocrocite. Earth and Planetary Science Letters, 395 149–158.

Wang Y.H., Morin G., Ona-Nguema G., Brown G.E. Jr. (2014) Arsenic(III) and Arsenic(V) Speciation during Transformation of Lepidocrocite to Magnetite. Environmental Science and Technology 48, 14282-14290.

Yi H., Balan E., Gervais C., Segalen L., Blanchard M., Lazzeri M. (2014) Theoretical study of the local charge compensation and spectroscopic properties of B-type carbonate defects in apatite. Physics and Chemistry of Minerals, 41, 347-359.

Yi H., Balan E., Gervais C., Ségalen L., Roche D., Person A., Fayon F., Morin G., Babonneau F. (2014) Probing atomic scale transformation of fossil dental enamel using Fourier transform infrared and nuclear magnetic resonance spectroscopy: A case study from the Tugen Hills (Rift Gregory, Kenya). Acta Biomaterialia 10, 3952 -3958.

2013

Adra A., Morin G., Ona-Nguema G., Menguy N., Maillot F., Bruneel O., Casiot C., Lebrun S., Juillot F., Brest J. (2013) Arsenic scavenging by aluminum-substituted ferrihydrites in a circumneutral pH river impacted by acid mine drainage. Environmental Science and Technology 47, 12784-12792.

Balan E., Yi H., Blanchard M. (2013) First principles study of OH defects in zircon. Physics and Chemistry of Minerals, 7, 547-554.

Balan E., Blanchard M., Yi H., Ingrin J. (2013) Theoretical study of OH-defects in pure enstatite Physics and Chemistry of Minerals, 40, 41-50.

Baumgartner J., Morin G., Menguy N., Perez Gonzalez T., Widdrat M., Cosmidis J., Faivre D. (2013) Magnetotactic bacteria form magnetite from a phosphate-rich ferric hydroxide via nanometric ferric (oxyhydr)oxide intermediates. Proceedings of the National Academy of Sciences of the United States of America 110, 14883-14888.

Blanchard M., Roberge M., Balan E., Fiquet G., Bureau H. (2013) Infrared signatures of OH-defects in wadsleyite: a first-principles study. American Mineralogist, 98, 2132-2143.

Beltrando M, Di Vincenzo V, Ferraris C (2013): Preservation of sub-microscopic structural relics in micas: implications for 40Ar/39Ar geochronology. Geochimica and Cosmochimica Acta, 119, 359-380.

Davranche M., Dia A., Fakih M., Nowack B., Gruau G., Ona-Nguema G., Petitjean P., Martin S., and Hochreutener R. (2013) Organic matter control on the reactivity of Fe(III)-oxyhydroxides and associated As in wetland soils: A kinetic modeling study. Chem. Geol. 335(0), 24-35.

Ferraris C, Pont S, Parodi GC, Rondeau B, Lorand JP (2013) Fabriesite, IMA 2012-080. Mineral. Mag., 77, 1-12.

Ingrin J., Liu J., Depecker C. Kohn S.C., Balan E., Grant K.J. (2013) Low-temperature evolution of OH bands in synthetic forsterite, implication for the nature of H-defects at high pressure Physics and Chemistry of Minerals, 6, 499-510.

Leopold, A.; Marchand, C., Deborde, J.; Chaduteau C., Allenbach, M., 2013. Influence of mangrove zonation on CO2 fluxes at sediment-air interface (New-Caledonia). Geoderma 202-203, 62-70, IF: 2.068.

Maillot F., Morin G., Juillot F., Bruneel O., Casiot C., Ona-Nguema G., Wang Y., Lebrun S., Aubry E., Vlaic G., Brown Jr. G.E. (2013) Structure and reactivity of As(III)- and As(V)-rich schwertmannites and amorphous ferric arsenate sulfate from the Carnoulès acid mine drainage, France: Comparison with biotic and abiotic model compounds and implications for As remediation. Geochimica et Cosmochimica Acta 104, 310-329.

Molnar, N, Welsh, D.T., Marchand, C., Deborde, J., Meziane, T. 2013. Impacts of shrimp farm effluents on water quality, benthic metabolism and N-dynamics in a mangrove forest (New Caledonia). Estuarine Coastal and Shelf Sciences 117, 12-21.

Othmane G., Allard T., Menguy N., Morin G., Esteve I., Fayek M., Calas G. (2013) Letter: Evidence for nanocrystals of vorlanite, a rare uranate mineral, in the Nopal I low-temperature uranium deposit (Sierra Peña Blanca, Mexico) American Mineralogist 98, 518-521.

Othmane G., Allard T., Morin G., Sélo M., Llorens I., Chen H., Bargar J., Fayek M. and Calas G. (2013) Uranium association with iron-bearing phases in mill tailings from Gunnar, Canada. Environmental Science and Technology 47, 12695-12702.

Yi H., Balan E., Gervais C., Segalen L., Fayon F., Roche D., Person A., Morin G., Guillaumet M., Blanchard M., Lazzeri M., Babonneau F. (2013) Letter : A carbonate-fluoride defect model for carbonate-rich fluorapatite. American Mineralogist 98, 1066-1069.

2012

Marchand C., Fernandez J.-M., Moreton B., Landi L., Lallier-Vergès E., Baltzer F. (2012) The partitioning of transitional metals (Fe, Mn, Ni, Cr) in mangrove sediments downstream of a ferralitised ultramafic watershed (New Caledonia). Chemical Geology 300-301, 70-80.

Allard T., Balan E., Calas G., Fourdrin C., Morichon E., Sorieul S. (2012) Radiation-induced defects in clay minerals : a review. Nuclear Instruments and Methods B, 277, 112-120.

Arfi Y., Buée M., Marchand C., Levasseur A., Record E. (2012a) Multiple markers pyrosequencing reveals highly diverse and host-specific fungal communities on the mangrove trees Avicennia marina and Rhizophora stylosa. FEMS Microbiol Ecology 79, 433-444.

Arfi Y., Marchand, C., Wartel, M., Record, E. (2012b). Fungal diversity in anoxic-sulfidic sediments in a mangrove soil. Fungal Ecology 5, 282-285.

Auzende A.L., Gillot J., Coquet A., Hennet L., Ona-Nguema G., Bonnin D., Esteve I, Roskosz M, Fiquet G (2012) Synthesis of amorphous MgO-rich peridotitic starting material for laser-heated diamond anvil cell experiments - application to iron partitioning in the mantle. High Pressure Research 31, 199-213.

Bakie T, Schreyer MK, Wong CL, Pramana SS, Klooster WT, Ferraris C, McIntyre GJ, White TJ (2012): A multi-domain gem-grade brazilian Apatite. American Mineralogist, 97, 1574-1581.

Blanchard M., Morin G., Lazzeri M., Balan E., Dabo I. (2012a) First-principles simulation of arsenate adsorption on the (1-12) surface of hematite. Geochimica et Cosmochimica Acta 86, 182-185.

Blanchard M., Poitrasson F., Méheut M., Lazzeri M., Mauri F., Balan E. (2012b) Comment on "New data on equilibrium iron isotope fractionation among sulfides: Contraints on mechanism of sulfide formation in hydrothermal and igneous systems" by Polyakov V.B. and Soultaniv D.M. Geochimica et Cosmochimica Acta 87, 356-359.

Delattre S., Balan E., Lazzeri M., Blanchard M., Guillaumet M., Beyssac O., Haussühl E., Winkler B., Salje E.K.H., Calas G. (2012) Experimental and theoretical study of the vibrational properties of diaspore (α-AlOOH) Physics and Chemistry of Minerals 39, 93-102.

Dublet G., Juillot F., Morin G., Fritsch E., Fandeur D., Ona-Nguema G., Brown Jr. G.E. (2012) Ni speciation in a New Caledonian lateritic regolith: A quantitative X-ray absorption spectroscopy investigation. Geochimica et Cosmochimica Acta 95, 119-133.

Elmaleh A., Galy A., Allard T., Dairon R., Day J.A., Michel F., Marriner N., Morhange C., Couffignal F. (2012) Anthropogenic accumulation of metals and metalloids in carbonate-rich sediments: Insights from the ancient harbor setting of Tyre (Lebanon). Geochimica et Cosmochimica Acta 82, 23-38.

Génin, J.-M. R., Guérin, O., Herbillon, A. J. Kuzmann, E., Mills, S. J., Morin, G., Ona-Nguema, G., Ruby, C., Upadhyay, C. (2012) Redox topotactic reactions in FeII-III oxyhydroxycarbonate new minerals related to fougèrite in gleysols: “trébeurdenite and mössbauerite”, Hyperfine Interactions, 204, 71-81.

Guastoni A, Nestola F, Ferraris C, Parodi GC (2012): Xenotime-(Y) and Sn-rich thortveitite in miarolitic pegmatites at Baveno (Southern Alps, Italy). Mineralogical Magazine, 76, 761-767. Journal IF = 2.21
Guyodo Y., Sainctavit P., Arrio M.A., Carvallo C., Penn R.L., Erbs J.J., Forsberg B.S., Morin G., Maillot F., Lagroix F., Bonville P., Wilhelm F., Rogalev A. (2012) X-ray magnetic circular dichroïsm provides strong evidence for tetrahedral iron in ferrihydrite. Geochemistry Geophysics Geosystems 13, Q06Z44.

Javoy M., Balan E., Méheut M., Blanchard M., Lazzeri M. (2012) First-principles investigation of equilibrium isotopic fractionation of O- and Si-isotopes between refractory solids and gases in the solar nebula. Earth and Planetary Science Letters 319,118-127.

Laveuf C., Cornu S., Guilherme L.R., Guerin A. and Juillot F. (2012) The impact of redox conditions on the rare earth element signatures of redoximorphic features in a soil sequence developed from limestone. Geoderma, 170, 25-38.

Pantke, C., Obst M., Benzerara K., Morin G., Ona-Nguema G., Dippon U., Kappler A. (2012) Green rust formation during Fe(II) oxidation by the nitrate-reducing Acidovorax sp. strain BoFeN1. Environmental Science Technology 46, 1439-1446.

Parodi GC, Pont S, Ferraris C, Rondeau B, Lorand JP (2012): Trinepheline, IMA 2012-024. Mineral. Mag., 76, 1281-1288.

Priadi C., Le Pape P., Morin G., Ayrault S., Maillot F., Juillot F., Hochreutener R., Llorens I., Testemale D., Proux O., and Brown G.E., Jr. (2012) X-ray absorption fine structure evidence for amorphous zinc sulfide as a major zinc species in suspended matter from the Seine river downstream of Paris, Ile-de-France, France. Environmental Science Technology 46, 3712–3720.

Volant, A ; Desoeuvre, A ; Casiot, C ; Lauga, B ; Delpoux, S ; Morin, G ; Personne, JC ; Hery, M ; Elbaz-Poulichet, F ; Bertin, PN ; Bruneel, O. (2012) Archaeal diversity: temporal variation in the arsenic-rich creek sediments of Carnoules Mine, France. Extremophiles 16(4), 645-657.

Welch M.D., Montgomery W., Balan E., Lerch P. (2012) Insights into the high-pressure behavior of kaolinite from infrared spectroscopy and quantum-mechanical calculations. Physics and Chemistry of Minerals 39, 143-151. Journal IF = 1.59.

2011

Allard, T; Weber, T; Bellot, C; Damblans, C; Bardy, M; Bueno, G; Nascimento, NR; Fritsch, E; Benedetti, MF (2011) Tracing source and evolution of suspended particles in the Rio Negro Basin (Brazil) using chemical species of iron. Chemical Geology 280, 79-88.

Auzende A.L., Gillot J., Coquet A., Hennet L., Ona-Nguema G., Bonnin D., Esteve I., Roskosz M., Fiquet G., (2011). Synthesis of amorphous MgO-rich peridotitic starting material for laser-heated diamond anvil cell experiments - application to iron partitioning in the mantle. High Presssure Research 31, 199-213.

Balan E, Fritsch E, Allard T., Morin G, Guillaumet M, Delattre S, Blanchard M, Calas G. (2011) Spectroscopic investigation and theoretical modeling of kaolinite-group minerals and other low-temperature phases. Comptes Rendus Geoscience, 343 (2-3): 177-187.

Balan E., Delattre S., Roche D., Segalen L., Morin G, Guillaumet M., Blanchard M., Lazzeri M., Brouder C., Salje E.K.H. (2011b) Line-broadening effects in the powder infrared spectrum of apatite. Physics and Chemistry of Minerals 38(2), 111-122.

Balan E., Ingrin J., Delattre S., Kovacs I., Blanchard M. (2011c) Theoretical infrared spectrum of OH-defects in forsterite. European Journal of Mineralogy 23, 285-292.

Bardy M., Derenne S., Allard, T; Benedetti, MF; Fritsch, E (2011) Podzolisation and exportation of organic matter in black waters of the Rio Negro (upper Amazon basin, Brazil) Biogeochemistry, 106, 71-88.

Benzerara K, Miot J, Morin G, Ona-Nguema G, Skouri-Panet F, Ferard C. (2011a) Significance, mechanisms and environmental implications of microbial biomineralization. Comptes Rendus Geoscience, 343 (2-3): 160-167.

Benzerara K., Miot J., Morin G. (2011b) How some bacteria can oxidize iron in the absence of dioxygen: implications for environmental science and the search of ancient traces of life. Actualité Chimique 356-57, 102-104.

Bordage, A; Balan, E; de Villiers, JPR; Cromarty, R; Juhin, A; Carvallo, C; Calas, G; Raju, PVS; Glatzel, P. (2011) Vanadium oxidation state in Fe-Ti oxides by high-energy resolution fluorescence-detected X-ray absorption spectroscopy. Physics and Chemistry of Minerals 38(6), 449-458.

Bruneel O., Volant A., Gallien S., Chaumande B., Casiot C., Carapito C., Bardil A., Morin G., Brown G.E., Jr., Personne C.J., Le Paslier D., Schaeffer C., Van Dorsselaer Alain., Bertin P., Elbaz-Poulichet F., Arsene-Ploetze F. (2011) Characterization of the active bacterial community involved in natural attenuation processes in arsenic-rich creek sediments. Microbial Ecology 61(4), 793-810.

Caner L., Petit S., Joussein E., Fritsch E., Herbillon A.J. (2011) Accumulation of organo-metallic complexes in laterites and the formation of Aluandic Andosols in the Nilgiri Hills (southern India): similarities and differences with Umbric Podzols. European Journal of Soil Science 62, 754-764.

Charlet L., Morin G., Rose J., Wang Y.H., Auffan M., Burnol A., Fernandez-Martinez A. (2011) Reactivity at (nano)particle-water interfaces, redox processes, and arsenic transport in the environment. Comptes Rendus Geoscience 343 (2-3): 123-139.

Delattre S., Balan E., Lazzeri M., Blanchard M., Guillaumet M., Beyssac O., Haussühl E., Winkler B., Salje E.K.H., Calas G. (2011) Experimental and theoretical study of the vibrational properties of diaspore (a-AlOOH). Physics and Chemistry of Minerals, 39 (2), 93-102.

Fritsch, E; Balan, E; Do Nascimento, NR; Allard, T; Bardy, M; Bueno, G; Derenne, S; Melfi, AJ; Calas, G (2011) Deciphering the weathering processes using environmental mineralogy and geochemistry: Towards an integrated model of laterite and podzol genesis in the Upper Amazon Basin. Comptes Rendus Geoscience 343(2-3), 188-198.

Hohmann C., Morin G., Ona-Nguema G., Guigner J.M., Brown Jr. G.E., Kappler A. (2011) Molecular-level modes of As binding to Fe(III) (oxyhydr)oxides precipitated by the anaerobic nitrate-reducing Fe(II)-oxidizing Acidovorax sp. strain BoFeN1. Geochimica et Cosmochimica Acta 75(17), 4699-4712.

Juillot F., Maréchal C., Morin G., Jouvin D., Cacaly S., Telouk P., Benedetti M., Ildefonse P., Sutton S., Guyot F., Brown Jr. G.E. (2011) Contrasting isotopic signatures between anthropogenic and geogenic Zn and evidence for post-depositional fractionation processes in smelter-impacted soils from Northern France. Geochimica et Cosmochimica Acta 75(9), 2295-2308.

Maillot F., Morin G., Wang Y., Bonnin D., Ildefonse P., Chaneac C., Calas G. (2011). New insight into the structure of nanocrystalline ferrihydrite : EXAFS evidence for tetrahedrally coordinated Fe3+. Geochimica et Cosmochimica Acta 75(10), 2708-2720.

Marchand C., Allenbach M. and Lallier-Verges E. (2011) Relationships between heavy metals distribution and organic matter cycling in mangrove sediments (Conception Bay, New caledonie) Geoderma 160, 444-466.

Marchand C., Lallier-Verges E., Allenbach M. (2011b) Redox conditions and heavy metals distribution in mangrove forests receiving effluents from shrimp farms (Teremba Bay, New Caledonia). Journal of Soils and Sediments 11, 529-541.

Perez M.A.P.; Moreira-Turcq, P; Gallard, H; Allard, T; Benedetti, MF (2011) Dissolved organic matter dynamic in the Amazon basin: Sorption by mineral surfaces. Chemical Geology, 286, 158-168.

Wang Y., Morin G., Ona-Nguema G., Juillot F., Calas G., and Brown Jr G. E. (2011) Distinctive Arsenic(V) trapping modes by magnetite nanoparticles induced by different sorption processes. Environ. Sci. Technol. 45, 7258-7266.

2010

Balan E., Delattre S., Guillaumet M., Salje E.K.H. (2010) Low-temperature infrared spectroscopic study of OH stretching modes in kaolinite and dickite. American Mineralogist, 95, 1257-1266. Journal IF = 2.026.
Blanchard M., Morin G., Lazzeri M., Balan E. (2010) First-principles study of the structural and isotopic properties of Al- and OH-bearing hematite. Geochimica et Cosmochimica Acta 74(14), 3948-3962.

Bordage, A; Brouder, C; Balan E; Cabaret, D; Juhin, A; Arrio, MA; Sainctavit, P; Calas, G; Glatzel, P (2010) Electronic structure and local environment of substitutional V3+ in grossular garnet Ca3Al2(SiO4)3: K-edge X-ray absorption spectroscopy and first-principles modeling. American Mineralogist 95, 1161-1171.

Cotte M; M. Auffan; W. Degruyter; I. Fairchild; M. A. Newton; G. Morin; G. Sarret; A. C. Scheinost (2010) Environmental Sciences at the ESRF. Synchrotron Radiation News 23(5), 28-35.

Egal M., Casiot C., Morin G., Elbaz-Poulichet F., Cordier M.A., Bruneel O. (2010) An updated insight into the natural attenuation of As concengtrations in Reigous creek (southern France). Applied Geochemistry 25(12), 1949-1957.

Fourdrin C., Allard T., Monnet I., Menguy N., Benedetti M., Calas G. (2010) Effect of radiation-induced amorphization on smectite dissolution. Environmental Science and Technology. 44, 2509-2514.

Hohmann C., Winkler E., Morin G., Kappler A. (2010) Anaerobic Fe(II)-oxidizing bacteria show As resistance and immobilize As during Fe(III) mineral precipitation. Environmental Science and Technology 44, 94-101.

Huguet A., Fosse C., Metzger P., Fritsch E., Derenne S. (2010). Occurrence and distribution of extractable glycerol dialkyl glycerol tetraethers in podzols. Organic Geochemistry, 41 (3), 291-301.

Huguet A., Fosse C., Metzger P., Fritsch E., Derenne S. (2010). Occurrence and distribution of non-extractable glycerol dialkyl glycerol tetraethers in temperate and tropical podzol profiles. Organic Geochemistry, 41 (8), 833-844.

Juhin, A.; Morin, G.; Elkaim, E.; Frost, DJ.; Fialin, M.; Juillot, F. and Calas, G. (2010) Structure refinement of a synthetic knorringite, Mg3(Cr0.8Mg0.1Si0.1)2(SiO4)3. American Mineralogist, 95, 59-63.

Méheut M., Lazzeri M., Balan E., Mauri F. (2010) First-principles calculation of H/D isotopic fractionation between hydrous minerals and water. Geochimica et Cosmochimica Acta, 74, 3874-3882.

Morichon E., Allard T., Beaufort D., Quirt D. (2010a) An EPR study of native radiation-induced paramagnetic defects in sudoite (di–trioctahedral Al–Mg chlorite) from the alteration halo related to unconformity-type uranium deposits. Physics and Chemistry of Minerals. 37, 3, 145-152.

Morichon E., Beaufort D., Allard T., Quirt D. (2010b) Tracing past migrations of uranium in Paleo-Proteozoic basins : new insights from radiation-induced defects in clay minerals. Geology 38, 983-986.

Ona-Nguema G., Morin G., Wang Y., Foster A., Juillot F., Calas G., Brown Jr. G.E. (2010) XANES evidence for rapid Arsenic(III) Oxidation at Magnetite, and Ferrihydrite Surfaces by dissolved O2, via Fe2+-Mediated Reactions. Environmental Science and Technology 44 (14), 5416–5422.

Roche D., Segalen L., Balan E., Delattre S. (2010) Preservation assessment of Miocene-Pliocene tooth enamel from Tugen Hills (Kenyan Rift Valley) through FTIR, chemical and stable-isotope analyses. Journal of Archaeological Science, 37, 1690-1699.

Ruby C, Abdelmoula M, Naille S, Renard A, Khare V, Ona-Nguema G, Morin G, Genin JMR. (2010) Oxidation modes and thermodynamics of FeII-III oxyhydroxycarbonate green rust: Dissolution-precipitation versus in situ deprotonation. Geochimica et Cosmochimica Acta 74(3), 953-966.

Salje, EKH; Koppensteiner, J; Schranz, W; Fritsch, E (2009) Elastic instabilities in dry, mesoporous minerals and their relevance to geological applications. Mineralogical Magazine 74, 341-350.

Wang Y., Morin G., Ona-Nguema G., Juillot J., Guyot F., Calas G., Brown Jr. G.E. (2010) Evidence for Different Surface Speciation of Arsenite and Arsenate on Green Rust: an EXAFS and XANES study. Environmental Science and Technology 44, 109-115.

2009

Allard T., Calas G. (2009) Radiation effects on clay mineral properties. Applied Clay Science. 43, 143-149.

Balan E., Cartigny P., Blanchard M, Cabaret D., Lazzeri M., Mauri F. (2009) Theoretical investigation of the anomalous equilibrium fractionation of multiple sulfur isotopes during adsorption. Earth and Planetary Science Letters, 284, 88-93.

Bardy M., Derenne S., Fritsch E. (2009). Evolution of lipid abundance and molecular composition during the podzolisation of laterites in the upper Amazon basin. Biogeochemistry 92 (1-2), 95-118.

Bejina, F; Blanchard, M; Wright, K; Price, GD (2009) A computer simulation study of the effect of pressure on Mg diffusion in forsterite. Physics of the Earth and Planetary Interiors 172, 13-19.

Blanchard M., Balan E., Wright K. (2009a) Incorporation of water in iron-free ringwoodite: a first-principles study. American Mineralogist, 94, 83-89.

Blanchard M., Poitrasson F., Méheut M., Lazzeri M., Mauri F. Balan E. (2009b) Iron isotope fractionation between pyrite (FeS2), hematite (Fe2O3) and siderite (FeCO3): A first-principles density functional theory study. Geochimica et Cosmochimica Acta 73, 6565-6578.

Egal M., Casiot C., Morin G., Parmentier M., Bruneel O., Lebrun S., Elbaz-Poulichet F. (2009) Kinetic control on the formation of tooeleite, schwertmannite and jarosite by Acidithiobacillus ferrooxidans strains in an As(III)-rich acid mine water. Chemical Geology 265, 432-441.

*Fakih M., Davranche M., Dia A., Nowack B., Morin G., Petitjean P., Châtellier X., Gruau G.(2009) Environmental impact of As(V)-Fe oxyhydroxide reductive dissolution: An experimental insight. Chemical Geology 259, 290-303.

Fandeur D, Juillot F, Morin G., Olivi L, Cognigni A., Ambrosi JP, Guyot F., Fritsch E. (2009a) Synchrotron-based speciation of chromium in an Oxisol from New Caledonia: Importance of secondary Fe-oxyhydroxides. American Mineralogist 94, 710-719.

Fandeur D., Juillot F., Morin G., Olivi L, Cognigni A., Webb S.M., Ambrosi J-P., Fritsch E., Guyot F, Brown Jr. G.E. (2009b) XANES evidence for oxidation of Cr(III) to Cr(VI) by Mn-oxides in a lateritic regolith developed on serpentinized ultramafic rocks of New Caledonia. Environmental Science and Technology 43, 7384–7390.

Fourdrin C, Balan E., Allard T., Boukari C., Calas G. (2009) Induced modifications of kaolinite under ionizing radiation: an infrared spectroscopic study. Physics and Chemistry of Minerals 36, 291-299.

Fritsch E., Allard Th., Benedetti M.F., Bardy M., Do Nascimento N.R., Li Y. & Calas G. (2009) Organic complexation and translocation of ferric iron in podzols of the Negro River watershed. Separation of secondary Fe species from Al species. Geochimica et Cosmochimica Acta 73, 7, 1813-1825.

Jacquat O., Voegelin A., Juillot F. and Kretzschmar R. (2009) Changes in Zn speciation during soil formation from Zn-rich limestones. Geochimica et Cosmochimica Acta, 73, 5554-5571.

Jouvin D., Louvat P., Juillot F., Marechal C. and Benedetti M. (2009) Zinc isotopic fractionation: Why organic matters. Environmental Science and Technology, 43, 5747-5754.

Lahlil S., Bouquillon A., Morin G., Galoisy L., Lorre C. (2009) Relationship between the coloration and the firing technology used to produce Susa glazed ceramics of the end of the neolithic period. Archaeometry 51, 774-790.

Laveuf C., Cornu S., Baize D., Hardy M., Josiere O., Drouin S. and Juillot F. (2009) Zinc redistribution in a soil developed from Limestone during pedogenesis. Pedosphere, 19, 292-304. Journal IF = 0.978.
Méheut M., Lazzeri M., Balan E., Mauri F. (2009) Structural control over equilibrium silicon and oxygen isotopic fractionation: A first-principles density-functional theory study; Chemical Geology, 258, 28-37.

Miot J, Benzerara K, Obst M, Kappler A, Hegler F, Schädler S, Bouchez C, Guyot F, Morin G. (2009) Extracellular iron biomineralization by photoautotrophic iron-oxidizing bacteria. Applied Environmental Microbiology 75(17), 5586-5591.

Miot J., Benzerara K., Morin G., Bernard S., Beyssac O, Larquet E., Kappler A., Guyot F. (2009) Transformation of vivianite by anaerobic nitrate-reducing iron-oxidizing bacteria. Geobiology 7, 373-384.

Miot, J.; Benzerara K., Morin G., Kappler A., Bernard S., Obst M., Férard C., Skouri-Panet F., Guigner J-M., Posth N., Galvez M., Brown Jr. G.E., Guyot F. (2009) Iron biomineralization by anaerobic neutrophilic iron-oxidizing bacteria. Geochimica et Cosmochimica Acta 73, 696-711.

Miot, J.; Morin, G.; Skouri-Panet, F.; Férard, C.; Poitevin A.; Aubry, E.; Ona-Nguema G..; Juillot F. ; Guyot, F.; Brown, G. E. (2009) Speciation of Arsenic in Euglena gracilis Cells Exposed to As(V). Environmental Science and Technology 43, 3315-3321.

Morin G., Wang Y., Ona-Nguema G., Juillot F., Calas G., Menguy M., Aubry E., Bargar J.R., Brown Jr. G.E. (2009) EXAFS and HRTEM Evidence for As(III)-Containing Surface Precipitates on Nanocrystalline Magnetite: Implications for As Sequestration. Langmuir 25, 9119-9128.

Ona-Nguema G., Morin G., Wang Y., Menguy N., Juillot F., Olivi L., Aquilanti G., Abdelmoula M., Ruby C., Bargar J.R., Guyot F., Calas G., Brown JR. G.E. (2009) Arsenite sequestration at the surface of nano-Fe(OH)2, ferrous-carbonate hydroxide, and green-rust after bioreduction of arsenic-sorbed lepidocrocite by Shewanella putrefaciens. Geochimica et Cosmochimica Acta 73, 1359-1381.

Tematio P., Fritsch E., Hodson M. E., Lucas Y., Bitom D., Bilong P. (2009). Mineral and geochemical characterization of a leptic aluandic soil and a thapto aluandic-ferralsol developed on trachytes in Mount Bambouto (Cameroon volcanic line). Geoderma, 152 (3-4), 314-323.

2008

Balan E, Blanchard M, Hochepied JF, et al. (2008a) Surface modes in the infrared spectrum of hydrous minerals: the OH stretching modes of bayerite. Physics and Chemistry of Minerals 35, 279-285. Journal IF = 1.876.

Balan E, Refson K, Blanchard M, et al. (2008b) Theoretical infrared absorption coefficient of OH groups in minerals. American Mineralogist 93(5-6), 950-953.

Bardy M, Fritsch E, Derenne S, Allard T, Do Nascimento NR, Bueno GT (2008) Micromorphology and spectroscopic characteristics of organic matter in waterlogged podzols of the upper Amazon basin. Geoderma 145, 222-230.

Benzerara K., G. Morin, T.H. Yoon, J. Miot, T. Tyliszczak, C. Casiot, O. Bruneel, F. Farges, G.E. Brown Jr. (2008) Nanoscale study of As biomineralization in an acid mine drainage system. Geochimica et Cosmochimica Acta 72, 3949-3963.

Blanchard M, Lazzeri M, Mauri F, et al. (2008) First-principles calculation of the infrared spectrum of hematite. American Mineralogist 93, 1019-1027.

Bouillon, S; Borges, AV; Castaneda-Moya, E; Diele, K; Dittmar, T; Duke, NC; Kristensen, E; Lee, SY; Marchand, C; Middelburg, JJ; Rivera-Monroy, VH; Smith, TJ; Twilley, RR (2008) Mangrove production and carbon sinks: A revision of global budget estimates. Global Biogeochemical Cycles 22, GB2013, pp12.

Brown Jr. G.E., Wang, Y., Gelabert A., Ha, J., Cismasu C., Ona-Nguema G., Benzerara K., Miot J., Menguy N., Morin G., Juillot F., Guyot F., Calas G., Farges F., Trainor T., Gescher J., Cordova C., Spormann A.M. (2008) Synchrotron X-ray studies of heavy metal mineral-microbe interactions. Mineralogical Magazine 72, 169-173.

Calas G, Agrinier P, Allard T, Ildefonse P (2008) Alteration geochemistry of the Nopal I uranium deposit (Sierra Pena Blanca, Mexico), a natural analogue for a radioactive waste repository in volcanic tuffs. Terra Nova 3, 206-212.

Cancès B., Juillot F., Morin G., Laperche V., Polya D.,Vaughan D.J., Hazemann J.L., Proux O., Brown Jr. G. E. and Calas G. (2008) Change in arsenic speciation through a contaminated soil profile: a XAS based study. Science of the Total Environment 397, 178-189.

Carvallo C, Sainctavit P, Arrio MA, Menguy N, Wang Y, Ona-Nguema G, Brice-Profeta S (2008) Biogenic vs. abiogenic magnetite nanoparticles: A XMCD study. American mineralogist 93(5-6), 880-885.

Do Nascimento NR, Fritsch E, Bueno GT, et al. (2008) Podzolization as a deferralitization process: dynamics and chemistry of ground and surface waters in an Acrisol-Podzol sequence of the upper Amazon Basin. European Journal of Soil Science 59, 911-924.

Juhin, A; Brouder, C; Arrio, MA; Cabaret, D; Sainctavit, P; Balan, E; Bordage, A; Seitsonen, AP; Calas, G; Eeckhout, SG; Glatzel, P (2008) X-ray linear dichroism in cubic compounds: The case of Cr3+ in MgAl2O4. Physical Review B 78, 195103.

Juillot F., C. Maréchal, M. Ponthieu, S. Cacaly, G. Morin, M. Benedetti, J.L. Hazemann, O. Proux, F. Guyot. (2008) Zn isotopic fractionation caused by sorption on goethite and 2-Lines ferrihydrite. Geochimica et Cosmochimica Acta 72, 4886-4900.

Kristensen E., Bouillon, S., Dittmar, T., Marchand, C. 2008. Organic carbon dynamics in mangrove ecosystem, a review. Aquatic Botany 89, 201-219.

Lahlil S, Biron I, Galoisy L, Morin G (2008) Rediscovering ancient glass technologies through the examination of opacifier crystals. Applied Physics A-Materials Science & Processing 92, 109-116.

Lallier-Verges, E; Marchand, C; Disnar, JR; Lottier, N (2008) Origin and diagenesis of lignin and carbohydrates in mangrove sediments of Guadeloupe (French West Indies): Evidence for a two-step evolution of organic deposits. Chemical Geology 255, 388-398.

Laveuf C, Cornu S, Juillot F (2008) Rare earth elements as tracers of pedogenetic processes. Comptes Rendus Geoscience 340, 523-532.

Marchand, C., Lallier-Vergès, E., Disnar, J.-R., Kéravis, D., (2008). Organic carbon sources and transformations in mangrove sediments: a Rock-Eval pyrolysis approach. Organic Geochemistry 39, 408-421.

Miot, J.; Morin, G.; Skouri-Panet, F.; Férard, C.; Aubry, E.; Briand, J.; Wang, Y.; Ona-Nguema, G.; Guyot, F.; Brown, G. E. (2008) XAS Study of Arsenic Coordination in Euglena gracilis Exposed to Arsenite. Environmental Science and Technology 42(14); 5342-5347.

Morichon E, Allard T, Beaufort D, Patrier P. (2008) Evidence of native radiation-induced paramagnetic defects in natural illites from unconformity-type uranium deposits. Physics and Chemistry of Minerals 35(6) , 339-346.

Morin G., Ona-Nguema G., Wang Y. Menguy N., Juillot F., Proux O., Guyot F., Calas G., Brown JR. G.E. (2008) EXAFS analysis of arsenite and arsenate adsorption on maghemite. Environmental Science and Technology 42, 2361-2366.

Sorieul S, Allard T, Wang LM, Grambin-Lapeyre C., Lian J., Calas G., Ewing R.C. (2008) Radiation-Stability of Smectite. Environmental Science & Technology 42, 8407-8411.

Wang Y., Morin G., Ona-Nguema G., Menguy N., Juillot F., Aubry E., Guyot F., Calas G., Brown JR. G.E. (2008) Arsenite sorption at the magnetite-water interface during aqueous precipitation of magnetite. EXAFS evidence of a new surface complex. Geochimica et Cosmochimica Acta 72, 2573-2586.

2007

Allard Th., Ildefonse Ph., Calas G. (2007) Reconstruction of past uranium migration in a sedimentary deposit (Coutras, France) : implications for a radwaste repository. Chemical Geology. 239, 50-63.

Balan E., Fritsch E., Allard T ., Calas G. (2007a) Inheritance versus neoformation of kaolinite during lateritic soil formation : a case study in the middle Amazon basin. Clays and Clay Minerals, 55, 253-259.

Balan E., Lazzeri M., Delattre S., Méheut M., Refson K. Winkler B. (2007b) Anharmonicity of inner-OH stretching modes in hydrous phyllosilicates: assessment from first-principles frozen-phonon calculations Physics and Chemistry of Minerals, 34, 621-625.

Balan E., Lazzeri M., Mauri F., Calas G. (2007c) Structure, reactivity and spectroscopic properties of minerals from lateritic soils: Insights from ab initio calculations. European Journal of Soil Science, 58, 870-881.

Bardy M., Bonhomme, C., Fritsch E., Maquet J., Hajjar R., Allard T., Derenne S., Calas G. (2007d) Al speciation in tropical podzols of the upper amazon basin : a solid-state 27Al MAS and MQMAS NMR study. Geochimica et Cosmochimica Acta, 71, 13, 3211-3222.

Blanchard M., Wright K. & Catlow C.R.A. (2007a) Arsenic incorporation into FeS2 pyrite and its influence on dissolution: a DFT study, Geochimica Cosmochimica Acta, 71, 624-630.

Blanchard M., Wright K., Gale J.D. & Catlow C.R.A. (2007b) Adsorption of As(OH)3 on the (001) surface of FeS2 pyrite: a quantum-mechanical DFT study, J. Phys. Chem. C, 111 (30), 11390-11396.

Burnol A., Garrido F., Baranger P., Joulian C., Dictor M-C., Bodenan F., Morin G. and Charlet L. (2007) Decoupling of arsenic and iron release from ferrihydrite suspension under reducing conditions: a biogeochemical model. Geochemical Transactions 8/1 :12, 1-55.

Delattre S., Utsunomiya S., Ewing R.C., Boeglin J.-L., Braun J.-J., Balan E., Calas G. (2007) Dissolution of radiation-damaged zircon in lateritic soils. American Mineralogist, 92, 1978-1989.

Duke, N. C., Meynecke, J.-O., Dittmann, S., M. Ellison, A., Anger, K., Berger U., Cannicci, S., Diele, K., Ewel, K. C., Field, C. D., Koedam, N., Lee, S. Y., Marchand C., Nordhaus, I., Smith III, T. J., Dahdouh-Guebas, F. 2007. A world without mangroves? Science 317, 41-42.

Méheut M., Lazzeri M., Balan E., Mauri F. (2007) Equilibrium isotopic fractionation between kaolinite, quartz and water: prediction from first-principles density-functional theory. Geochimica et Cosmochimica Acta 71, 3170-3181.

Morin G., Rousse G., Elkaim E. (2007) Crystal structure of tooeleite, a new iron arsenite hydroxysulfate relevant of acid mine drainage. American mineralogist 92, 193-197.

Reynard B., Hilairet N., Balan E., Lazzeri M. (2007) Elasticity of serpentines and extensive serpentinization in subduction zones. Geophysical Research Letters, 34, L13307.

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