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Details for George Calas

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No photo George Calas
Paris

Abstracts by this author at Goldschmidt2013

Note: abstracts are only listed if one of the following email addresses was provided when the abstract was submitted: Georges.Calas@impmc.jussieu.fr. Otherwise, try an advanced search.







Abstracts submitted to previous conferences

Below are all abstracts at recent previous conferences in the conference archives authored by Georges.Calas@impmc.jussieu.fr.

(2014) Oxidation State of Iron in Glass Inclusions: A Microspectrophotometric Contribution
Chassé M, Galoisy L, Métrich N, Calas G & Lelong G


(2014) The Structure of Glasses and Melts: Order in the Chaos
Calas G, Cormier L & Galoisy L

(2014) Uranium Migration and Stabilization during Weathering of Granitic Waste Rock Piles
Boekhout F, Gérard M, Calas G & Descostes M

(2013) An Original Microscopic Approach of UV-Visible-Near IR Spectroscopy
Galoisy L, Lelong G, Calas G & Guillaumet M

(2013) Keynote: Beneficial Uses of Engineered Nanoparticles and the Behavior of Natural and Engineered Nanoparticles in the Environment
Brown G, Levard C, Cismasu C, Michel M, Ma R, Wang Y, Calas G, Morin G & Lowry G

(2013) Contrasted Iron-Speciation in Obsidians and Tektites: A Spectroscopic Study
Chassé M, Galoisy L, Lelong G & Calas G

(2013) Invited: 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) Insights into the Uranium Speciation in the Mill Tailings of the Cominak Mine at Akouta, Niger
Déjeant A, Galoisy L, Calas G, Phrommavanh V & Descostes M


(2012) New Data on the Cenozoic Epithermal Uranium Concentrations at Nopal Deposit, Mexico
Angiboust S, Fayek M, Power IM, Camacho A, Calas G & Southam G

(2012) Supergene Evolution of Granitic Waste Rock Piles Around U-Mines in the Saint-Sylvestre Area (French Massif Central)
Galoisy L, Gerard M, Poquet T, Calas G, Descostes M & Phrommavanh V

(2012) Uranium Mineralogy and Factors of Stability in the Mill Tailings of the COMINAK Mine at Akouta (Niger)
Dejeant A, Galoisy L, Calas G, Menguy N, Phrommavanh V & Descostes M

(2011) Evidence of Fe-Oxide Clusters in Obsidians
Galoisy L, Calas G & Menguy N

(2011) Invited: 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) Local Structure of Poorly Ordered Nanosized Iron Oxides. Implications for Contaminants Scavenging
Maillot F, Morin G, Corinne C, Wang Y, Bonnin D, Chaneac C & Calas G

(2011) Molecular Scale Origin of Nuclear Waste Glass Properties
Calas G, Cormier L, Delaye J-M, Galoisy L, Jollivet P & Peuget S

(2011) Keynote: 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

(2011) Uranium Speciation in Opals from the Nopal I Deposit (Mexico)
Othmane G, Allard T, Menguy N, Vercouter T, Morin G, Calas G & Fayek M

(2010) Invited: 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

(2010) Structural Role of Zr in Silicate Glasses and Melts
Calas G, Dargaud O, Galoisy L, Cormier L, Menguy N, Ferlat G & Newville M

(2010) The Origin of Coloration in Garnets: An Optical Spectroscopic Study
Galoisy L, Feneyrol J, Juhin A, Kiratisin A, Giuliani G & Calas G



(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


(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) Invited: In situ Arsenic Speciation in Earth Surface Environments: Importance of Iron Oxides
Morin G, Juillot F, Miot J, Wang Y, Casiot C, Cancès B, Proux O, 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

(2007) Speciation and Long-Term Sequestering of Zn in a Naturally Enriched Soil
Juillot F, Morin G, Benedetti M, Hazemann J-L, Proux O, Bellin S, Briois V, Brown Jr. G & Calas G



(2004) Structural and Magnetic Role of Iron in Obsidians
Galoisy L, Calas G, Elmaleh A & Tisserand N

(2004) Structure and Reactivity of Nano-Crystalline As-Fe Oxy-Hydroxides in Acid Mine Drainage
Morin G, Lebrun S, Juillot F, Casiot C, Belin S, Proux O & Calas G

(2002) Invited: XAS Monitoring of Arsenic (Bio-)Oxidation and Immobilisation in Soils and Acid Mine Drainage
Morin G, Juillot F, Allard T, Casiot C, Elbaz-Poulichet F & Calas G