Georges  Calas
Georges Calas
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Pressure-induced coordination changes in crystalline and vitreous GeO 2
JP Itie, A Polian, G Calas, J Petiau, A Fontaine, H Tolentino
Physical Review Letters 63 (4), 398, 1989
EXAFS analysis of arsenite adsorption onto two-line ferrihydrite, hematite, goethite, and lepidocrocite
G Ona-Nguema, G Morin, F Juillot, G Calas, GE Brown
Environmental science & technology 39 (23), 9147-9155, 2005
X-ray absorption spectroscopy; applications in mineralogy and geochemistry
GE Brown, G Calas, GA Waychunas, J Petiau
Reviews in Mineralogy and Geochemistry 18 (1), 431-512, 1988
X-ray scattering and X-ray spectroscopy studies of silicate melts
GE Brown, F Farges, G Calas, JF Stebbins, PF McMillan, DB Dingwell
Reviews in Mineralogy 32, 317-410, 1995
Trace element distribution coefficients in alkaline series
F Lemarchand, B Villemant, G Calas
Geochimica et Cosmochimica Acta 51 (5), 1071-1081, 1987
XAFS determination of the chemical form of lead in smelter-contaminated soils and mine tailings: Importance of adsorption processes
G Morin, JD Ostergren, F Juillot, P Ildefonse, G Calas, GE Brown
American Mineralogist 84 (3), 420-434, 1999
Coordination of iron in oxide glasses through high-resolution K-edge spectra: information from the pre-edge
G Calas, J Petiau
Solid state communications 48 (7), 625-629, 1983
First-principles modeling of the infrared spectrum of kaolinite
E Balan, AM Saitta, F Mauri, G Calas
American mineralogist 86 (11-12), 1321-1330, 2001
Formation of ferric oxides from aqueous solutions: A polyhedral approach by X-ray absorption spectroscdpy: I. Hydrolysis and formation of ferric gels
JM Combes, A Manceau, G Calas, JY Bottero
Geochimica et Cosmochimica Acta 53 (3), 583-594, 1989
High-resolution XANES spectra of iron in minerals and glasses: structural information from the pre-edge region
L Galoisy, G Calas, MA Arrio
Chemical geology 174 (1-3), 307-319, 2001
Arsenic in soils, mine tailings, and former industrial sites
G Morin, G Calas
Elements 2 (2), 97-101, 2006
Bacterial formation of tooeleite and mixed arsenic (III) or arsenic (V)− iron (III) gels in the Carnoulès acid mine drainage, France. A XANES, XRD, and SEM study
G Morin, F Juillot, C Casiot, O Bruneel, JC Personné, F Elbaz-Poulichet, ...
Environmental Science & Technology 37 (9), 1705-1712, 2003
The effect of redox state on the local structural environment of iron in silicate glasses: a combined XAFS spectroscopy, molecular dynamics, and bond valence study
F Farges, Y Lefrère, S Rossano, A Berthereau, G Calas, GE Brown Jr
Journal of Non-Crystalline Solids 344 (3), 176-188, 2004
X-ray-absorption near-edge structure of 3d transition elements in tetrahedral coordination: The effect of bond-length variation
A Bianconi, E Fritsch, G Calas, J Petiau
Physical Review B 32 (6), 4292, 1985
Unraveling the atomic structure of biogenic silica: evidence of the structural association of Al and Si in diatom frustules
M Gehlen, L Beck, G Calas, AM Flank, AJ Van Bennekom, ...
Geochimica et Cosmochimica Acta 66 (9), 1601-1609, 2002
XANES Evidence for Rapid Arsenic(III) Oxidation at Magnetite and Ferrihydrite Surfaces by Dissolved O2 via Fe2+-Mediated Reactions
G Ona-Nguema, G Morin, Y Wang, AL Foster, F Juillot, G Calas, ...
Environmental science & technology 44 (14), 5416-5422, 2010
Crystal chemistry of cobalt and nickel in lithiophorite and asbolane from New Caledonia
A Manceau, S Llorca, G Calas
Geochimica et Cosmochimica Acta 51 (1), 105-113, 1987
Structural environments of incompatible elements in silicate glass/melt systems: II. UIV, UV, and UVI
F Farges, CW Ponader, G Calas, GE Brown Jr
Geochimica et Cosmochimica Acta 56 (12), 4205-4220, 1992
Aluminium X-ray absorption near edge structure in model compounds and Earth’s surface minerals
P Ildefonse, D Cabaret, P Sainctavit, G Calas, AM Flank, P Lagarde
Physics and Chemistry of Minerals 25 (2), 112-121, 1998
Chemical dependence of network topology of calcium aluminosilicate glasses: a computer simulation study
L Cormier, D Ghaleb, DR Neuville, JM Delaye, G Calas
Journal of non-crystalline solids 332 (1-3), 255-270, 2003
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