Opfergelt Sophie
ELIE
Opfergelt Sophie
2017
Detienne, Marie ; Delmelle, Pierre ; Guevara, Alicia ; Samaniego, P ; Opfergelt, Sophie ; Mothes, P.A. Contrasting origin of two clay-rich debris flows at Cayambe Volcanic Complex, Ecuador. In: Bulletin of Volcanology, , no.79:27 (2017). doi:10.1007/s00445-017-1111-2.
2017
Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Schoonejans, Jérôme ; Vanacker, Veerle ; Sonnet, Philippe ; de Jong, Jeroen ; Delmelle, Pierre. Impact of low denudation rates on soil chemical weathering intensity: A multiproxy approach. In: Chemical Geology, no. 456, p. 72-84 (2017). doi:10.1016/j.chemgeo.2017.03.007.
2017
Opfergelt, Sophie ; Williams, H.M ; Cornélis, Jean-Thomas ; Guicharnaud, R.A ; Georg, R.B. ; Siebert, C. ; Gislason, S.R. ; Halliday, A.N. ; Burton, K.W.. Iron and silicon isotope behaviour accompanying weathering in Icelandic soils, and the implications for iron export from peatlands. In: Geochimica et Cosmochimica Acta, , no.217, p. 273-291 (2017). doi:10.1016/j.gca.2017.08.033.
2017
Unzué-Belmonte, Dacil ; Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Cornélis, Jean-Thomas ; Barao, Lucia ; Minella, Jean ; Meire, Patrick ; Struyf, Eric. Land use change affects biogenic silica pool distribution in a subtropical soil toposequence. In: Soil Earth, no. 8, p. 737-750 (2017). doi:10.5194/se-8-737-2017.
2017
Schoonejans, Jérôme ; Vanacker, Veerle ; Opfergelt, Sophie ; Christl, M. Long-term soil erosion derived from in-situ 10Be and inventories of meteoric 10Be in deeply weathered soils in southern Brazil. In: Chemical Geology, , no.466, p. 380-388 (2017). doi:10.1016/j.chemgeo.2017.06.025.
2017
Opfergelt, Sophie ; Cornélis, Jean-Thomas ; Houben, David ; Givron, Claudine ; Burton, K.W ; Mattielli, Nadine. The influence of weathering and soil organic matter on Zn isotopes in soils. In: Chemical Geology, , no.466, p. 140-148 (2017). doi:10.1016/j.chemgeo.2017.06.002.
2016
Schoonejans, Jérôme ; Vanacker, Veerle ; Opfergelt, Sophie ; Granet, Mathieu ; Chabaux, François. Coupling uranium series and 10Be cosmogenic radionuclides to evaluate steady-state soil thickness in the Betic Cordillera. In: Chemical Geology, Vol. 446, no.0, p. 99-109 (2016). doi:10.1016/j.chemgeo.2016.03.030.
2016
Delvigne, Camille ; Opfergelt, Sophie ; Cardinal, Damien ; Hofmann, Axel ; André, Luc. Desilication in Archean weathering processes traced by silicon isotopes and Ge/Si ratios. In: Chemical Geology, , no.420, p. 139-147 (2016). doi:10.1016/j.chemgeo.2015.11.007.
2016
Schoonejans, Jérôme ; Vanacker, Veerle ; Opfergelt, Sophie ; Ameijeiras Mariño, Yolanda. Kinetically limited weathering at low denudation rates in semiarid climatic conditions.. In: Journal of Geophysical Research, Vol. 121, no. 121 (2016), p. 336–350 (2016). doi:10.1002/2015jf003626.
2016
Oye Anda, Corinne Coretta ; Opfergelt, Sophie ; Declerck, Stephan. Silicon acquisition by bananas (c.V.Grande Naine) is increased in presence of the arbuscularmycorrhizal fungus Rhizophagus irregularis MUCL 41833. In: Plant and Soil : international journal on plant-soil relationships, Vol. 409, no.1, p. 77-85 (2016). doi:10.1007/s11104-016-2954-6.
2016
Pogge von Strandmann, Philip A.E. ; Burton, Kevin W. ; Opfergelt, Sophie ; Eiríksdóttir, Eydís S. ; Murphy, Melissa J. ; Einarsson, Arni ; Gislason, Sigurdur R.. The effect of hydrothermal spring weathering processes and primary productivity on lithium isotopes: Lake Myvatn, Iceland. In: Chemical Geology, Vol. 445, no.0, p. 4-13 (2016). doi:10.1016/j.chemgeo.2016.02.026.
2015
Tallberg, Petra ; Opfergelt, Sophie ; Cornélis, Jean-Thomas ; Liljendahl, Anne ; Weckström, Jan. High concentrations of amorphous, biogenic Si (BSi)in the sediment of a small high-latitude lake: implications for biogeochemical Si cycling and for the use of BSi as a paleoproxy. In: Aquatic sciences, no. 77, p. 293-305 (2015). doi:10.1007/s00027-014-0387-y.
2015
Siebert, C. ; Pett-Ridge, J.C. ; Opfergelt, Sophie ; Guicharnaud, R.A. ; Halliday , A.N. ; Burton, K.W.. Molybdenum isotope fractionation in soils: influence of redox conditions, organic matter, and atmospheric inputs. In: Geochimica et Cosmochimica Acta, , no.162, p. 1-24 (2015). doi:10.1016/j.gca.2015.04.007.
2015
Doetterl, Sébastien ; Cornélis, Jean-Thomas ; Six, J. ; Bodé, Samuel ; Opfergelt, Sophie ; Boeckx, Pascal ; Van Oost, Kristof. Soil redistribution and weathering controlling the fate of geochemical and physical carbon stabilization mechanisms in soils of an eroding landscape. In: Biogeosciences, , no.12, p. 1357-1371 (2015). doi:10.5194/bg-12-1357-2015.
2015
Xiong, Z ; Li, Tiegang ; Algeo, Thomas ; Doering, Kristin ; Frank, Martin ; Brzezinski, Mark A. ; Chang, Fengming ; Opfergelt, Sophie ; Crosta, Xavier ; Jiang, Fuqing ; Wan, Shiming ; Zhai, Bin. The silicon isotope composition of Ethmodiscus rex laminated diatom mats from the tropical West Pacific: Implications for silicate cycling during the Last Glacial Maximum. In: Paleooceanography, no. 30, p. 803-823 (2015). doi:10.1002/2015PA002793.
2015
Couder, Eléonore ; Mattielli, Nadine ; Drouet, Thomas ; Smolders, Erik ; Delvaux, Bruno ; Iserentant, Anne ; Meeus, Coralie ; Maerschalk, Claude ; Opfergelt, Sophie ; Houben, David. Transpiration flow controls Zn transport in Brassica napus and Lolium multiflorum under toxic levels as evidenced from isotopic fractionation. In: Comptes rendus. Geoscience, no. 347, p. 386-396 (2015). doi:10.1016/j.crte.2015.05.004.
2014
Houben, David ; Sonnet, Philippe ; Tricot, Guillaume ; Mattielli, Nadine ; Couder, Eléonore ; Opfergelt, Sophie. Impact of Root-Induced Mobilization of Zinc on Stable Zn Isotope Variation in the Soil-Plant System.. In: Environmental Science & Technology (Washington), Vol. 48, no. 14, p. 7866-7873 (2014). doi:10.1021/es5002874.
2014
Opfergelt, Sophie ; Burton, K.W. ; Georg, R.B. ; West, A.J. ; Guicharnaud, R.A. ; Sigfusson, B. ; Siebert, C. ; Gislason, S.R. ; Halliday, A.N.. Magnesium retention on the soil exchange complex controlling Mg isotope variations in soils, soil solutions and vegetation in volcanic soils. In: Geochimica et Cosmochimica Acta, Vol. 125, p. 110-130 (2014). doi:10.1016/j.gca.2013.09.036.
2013
Opfergelt, Sophie ; Burton, K.W. ; Pogge von Strandmann , P.A.E. ; Gislason, S.R. ; Halliday, A.N.. Corrigendum to: Riverine silicon isotope variations in glaciated basaltic terrains: implications for the Si delivery to the ocean over glacial-interglacial intervals [Earth Planet. Sci. Lett. 369-370 (2013) 211-219]. In: Earth and Planetary Science Letters, Vol. 375, p. 451-452 (2013). doi:10.1016/j.epsl.2013.07.010.
2013
Opfergelt, Sophie ; Burton, K.W. ; Pogge von Strandmann, P.A.E. ; Gislason, S.R. ; Halliday, A.N.. Riverine silicon isotope variations in glaciated basaltic terrains: implications for the Si delivery to the ocean over glacial-interglacial intervals. In: Earth and Planetary Science Letters, Vol. 369-370, p. 211-219 (2013). doi:10.1016/j.epsl.2013.03.025.
2012
Pogge von Strandmann, P.A.E. ; Opfergelt, Sophie ; Lai, Y.J. ; Sigfusson, B. ; Gislason, S.R. ; Burton, K.W.. Lithium, magnesium and silicon isotope behaviour accompanying weathering in a basaltic soil and pore water profile in Iceland. In: Earth and Planetary Science Letters, Vol. 339-340, p. 11-23 (2012). doi:10.1016/j.epsl.2012.05.035.
2012
Opfergelt, Sophie ; Georg, R.B. ; Delvaux, Bruno ; Cabidoche, Y.M. ; Burton , K.W. ; Halliday , A.N.. Mechanisms of magnesium isotope fractionation in volcanic soil weathering sequences, Guadeloupe. In: Earth and Planetary Science Letters, Vol. 341-344, p. 176-185 (2012). doi:10.1016/j.epsl.2012.06.010.
2012
Opfergelt, Sophie ; Delmelle, Pierre. Silicon isotopes and continental weathering processes: assessing controls on Si transfer to the ocean. In: Comptes rendus. Geoscience, Vol. 344, no. 11-12, p. 723-738 (2012). doi:10.1016/j.crte.2012.09.006.
2012
Opfergelt, Sophie ; Georg, R.B. ; Delvaux, Bruno ; Cabidoche, Y.-M. ; Burton, K.W. ; Halliday, A.N.. Silicon isotopes and the tracing of desilication in volcanic soil weathering sequences, Guadeloupe. In: Chemical Geology, Vol. 326-327, p. 113-122 (2012). doi:10.1016/j.chemgeo.2012.07.032.
2011
Opfergelt, Sophie ; Eiriksdottir, E.S. ; Burton, K.W. ; Einarsson, A. ; Siebert, C ; Gislason, S.R. ; Halliday, A.N. Quantifying the impact of freshwater diatom productivity on silicon isotopes and silicon fluxes : Lake Myvatn, Iceland. In: Earth and Planetary Science Letters, , no. 305, p. 73-82 (2011). doi:10.1016/j.epsl.2011.02.043.
2011
Opfergelt, Sophie ; Burton, K.W. ; Guicharnaud, R. ; Siebert, C. ; Gislason, S.R. ; Halliday, A.N.. Silicon isotopes in allophane as a proxy for mineral formation in volcanic soils. In: Applied Geochemistry, Vol. 26, no. S1, p. S115-S118 (2011). doi:10.1016/j.apgeochem.2011.03.044.
2011
Cornélis, Jean-Thomas ; Delvaux, Bruno ; Georg, Bastian ; Lucas, Yves ; Ranger, Jacques ; Opfergelt, Sophie. Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review. In: Biogeosciences, Vol. 8, p. 89-112 (2011). doi:10.5194/bg-8-89-2011.
2010
Cardinal, D. ; Gaillardet, J. ; Hughes, H. J. ; Opfergelt, Sophie ; André, Luc. Contrasting silicon isotope signatures in rivers from the Congo Basin and the specific behaviour of organic-rich waters. In: Geophysical Research Letters, Vol. 37 (2010). doi:10.1029/2010GL043413.
2010
Cornélis, Jean-Thomas ; Delvaux, Bruno ; Cardinal, D. ; André, Luc ; Ranger, J. ; Opfergelt, Sophie. Tracing mechanisms controlling the release of dissolved silicon in forest soil solutions using Si isotopes and Ge/Si ratios. In: Geochimica et Cosmochimica Acta, Vol. 74, no. 14, p. 3913-3924 (2010). doi:10.1016/j.gca.2010.04.056.
2010
Opfergelt, Sophie ; Cardinal, D. ; André, L. ; Delvigne, C. ; Bremond, L. ; Delvaux, Bruno. Variations of delta Si-30 and Ge/Si with weathering and biogenic input in tropical basaltic ash soils under monoculture. In: Geochimica et Cosmochimica Acta, Vol. 74, no. 1, p. 225-240 (2010). doi:10.1016/j.gca.2009.09.025.
2009
Delvigne, C. ; Opfergelt, Sophie ; Cardinal, D. ; Delvaux, Bruno ; André, L.. Distinct silicon and germanium pathways in the soil-plant system: Evidence from banana and horsetail. In: Journal of Geophysical Research - Biogeosciences, Vol. 114, p. G02013 (2009). doi:10.1029/2008JG000899.
2009
Opfergelt, Sophie ; de Bournonville, Guillaume ; Cardinal, Damien ; André, Luc ; Delstanche, Séverine ; Delvaux, Bruno. Impact of soil weathering degree on silicon isotopic fractionation during adsorption onto iron oxides in basaltic ash soils, Cameroon. In: Geochimica et Cosmochimica Acta, Vol. 73, no. 24, p. 7226-7240 (2009). doi:10.1016/j.gca.2009.09.003.
2009
Delstanche, Séverine ; Opfergelt, Sophie ; Cardinal, Damien ; Elsass, Françoise ; André, Luc ; Delvaux, Bruno. Silicon isotopic fractionation during adsorption of aqueous monosilicic acid onto iron oxide. In: Geochimica et Cosmochimica Acta, Vol. 73, no. 4, p. 923-934 (2009). doi:10.1016/j.gca.2008.11.014.
2008
Opfergelt, Sophie ; Delvaux, Bruno ; André, Luc ; Cardinal, Damien. Plant silicon isotopic signature might reflect soil weathering degree. In: Biogeochemistry : an international journal, Vol. 91, no. 2-3, p. 163-175 (2008). doi:10.1007/s10533-008-9278-4.
2008
Henriet, Céline ; De Jaeger, Nathalie ; Dorel, M. ; Opfergelt, Sophie ; Delvaux, Bruno. The reserve of weatherable primary silicates impacts the accumulation of biogenic silicon in volcanic ash soils. In: Biogeochemistry : an international journal, Vol. 90, no. 2, p. 209-223 (2008). doi:10.1007/s10533-008-9245-0.
2008
Abraham, Kathrin ; Opfergelt, Sophie ; Fripiat, Francois ; Cavagna, Anne-Julie ; de Jong, Jeroen T. M. ; Foley, Stephen F. ; André, Luc ; Cardinal, Damien. delta Si-30 and delta Si-29 determinations on USGS BHVO-1 and BHVO-2 reference materials with a new configuration on a Nu Plasma multi-collector ICP-MS. In: Geostandards and Geoanalytical Research, Vol. 32, no. 2, p. 193-202 (2008). doi:10.1111/j.1751-908X.2008.00879.x.
2007
Reynolds, Ben C. ; Aggarwal, Jugdeep ; André, Luc ; Baxter, Douglas ; Beucher, Charlotte ; Brzezinski, Mark A. ; Engstrom, Emma ; Georg, R. Bastian ; Land, Magnus ; Leng, Melanie J. ; Opfergelt, Sophie ; Rodushkin, Ilia ; Sloane, Hilary J. ; van den Boorn, Sander H. J. M. ; Vroon, Pieter Z. ; Cardinal, Damien. An inter-laboratory comparison of Si isotope reference materials. In: Journal of Analytical Atomic Spectrometry, Vol. 22, no. 5, p. 561-568 (2007). doi:10.1039/b616755a.
2006
Opfergelt, Sophie ; Cardinal, Damien ; Henriet, Céline ; André, Luc ; Delvaux, Bruno. Silicon isotope fractionation between plant parts in banana: In situ vs. in vitro. In: Journal of Geochemical Exploration, Vol. 88, no. 1-3, p. 224-227 (2006). doi:10.1016/j.gexplo.2005.08.044.
2006
Opfergelt, Sophie ; Cardinal, D. ; Henriet, Céline ; Draye, Xavier ; André, L. ; Delvaux, Bruno. Silicon isotopic fractionation by banana (Musa spp.) grown in a continuous nutrient flow device. In: Plant and Soil : international journal on plant-soil relationships, Vol. 285, no. 1-2, p. 333-345 (2006). doi:10.1007/s11104-006-9019-1.
2006
Opfergelt, Sophie ; Delmelle, Pierre ; Boivin, P. ; Delvaux, Bruno. The 1998 debris avalanche at Casita volcano, Nicaragua: Investigation of the role of hydrothermal smectite in promoting slope instability. In: Geophysical Research Letters, Vol. 33, no. 15, p. L15305 (2006). doi:10.1029/2006GL026661.
2015
Delmelle, Pierre ; Henley, R.W. ; Opfergelt, Sophie ; Detienne, Marie. Summit acid crater lakes and flank instability in composite volcanoes. In: Rouwet, D., Christenson, B., Tassi, F., Vandemeulebrouck, J. (Eds.), Volcanic Lakes (Advances in Volcanology), Springer: Heidelberg, 2015, 289-305. 978-3-642-36832-5. doi:10.1007/978-3-642-36833-2_12.
2015
Delmelle, Pierre ; Opfergelt, Sophie ; Cornelis, Jean-Thomas ; Ping, Chien-Lu. Volcanic soils. In: Sigurdsson H., Houghton B., Rymer H., Stix J., McNutt S., The Encyclopedia of Volcanoes, 2nd Edition, Academic Press: San Diego, 2015, 1253-1264.
2012
Cornélis, Jean-Thomas ; Kruyts, Nathalie ; Dufey, Joseph ; Delvaux, Bruno ; Opfergelt, Sophie. Understanding root uptake of nutrients, toxic and polluting elements in hydroponic culture. In: T. Asao, Hydroponics, In Tech, 2012, 153-180. 978-9-5351-0386-8.
2017
Vander Linden, Charles ; Durviaux, Alexis ; Opfergelt, Sophie ; Delvaux, Bruno. Does soil weathering stage impact the effects of intensive banana and sugarcane cropping on the silicon cycle?. IV Simposio Internacional INIVIT'2017 (Cuba, du 24/11/2017 au 27/11/2017).
2017
Gaspard, François ; Opfergelt, Sophie ; Ameijeiras Mariño, Yolanda ; Dessert, Céline ; Derry, Louis ; Delmelle, Pierre. Germanium/silicon ratio to trace weathering and hydrothermal contribution to element fluxes in river waters from Guadeloupe (FWI). GOLDSCHMIDT 2017 (Paris, France, du 13/08/2017 au 18/08/2017). In: Goldschmidt 2017 Abstract, 2017.
2017
Gaspard, François ; Opfergelt, Sophie ; Delmelle, Pierre. Si fluxes exported from volcanic islands: A case study from Kawah Ijen volcano, Indonesia. Si Workshop (AgroBio Tech, Gembloux, Belgium, 20/11/2017).
2017
Vander Linden, Charles ; Sosnowski, Pierre ; Opfergelt, Sophie ; Delvaux, Bruno. The forest-to-banana transition impacts the soil-plant silicon cycle in the humid tropics (Guadeloupe. IV Simposio Internacional INIVIT'2017 (Cuba, du 24/11/2017 au 27/11/2017).
2017
Ruiz Hinojosa, Maria Gabriela ; Opfergelt, Sophie ; Guevara, Alicia ; Delmelle, Pierre. Étude de l’origine de dépôts volcaniques indurés: cas d’étude sur la Cangahua en Équateur. Midi-chercheurs UCL (Louvain-la-Neuve, Belgique, du 27/10/2017 au 27/11/2017).
2016
Tarasenko, Inga ; Opfergelt, Sophie ; Stenuit, Benoît ; Bonneville, Steeve ; Müller, Dirk. Colonisation of freshly deposited volcanic tephra by soil fungi. EGU General assembly 2016 (Vienna, Austria, du 17/04/2016 au 22/05/2016). In: Geophysical Research Abstracts, Vol. 18, p. 12998 (2016).
2016
Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Derry, Louis ; Robinet, Jérémy ; Delmelle, Pierre. Ge/Si ratios record the impact of forest conversion to cropland on soil chemical weathering processes and solutes export to rivers. AGU FALL MEETING 2016 (San Francisco, du 12/12/2016 au 16/12/2016).
2016
Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Lamouline, Florence ; Cornélis, Jean-Thomas ; Delmelle, Pierre. Impact de la conversion forêt-culture sur le degré d’altération du sol et la distribution des nutriments minéraux dans le sol en milieu tropical. Les 13es journées d'études des sols JES 2016 (Louvain-la-Neuve, Belgium, du 05/07/2016 au 08/07/2016).
2016
Opfergelt, Sophie ; Delmelle, Pierre ; Duhain, Cédric ; De Potter d'Indoye, A ; Vera, R ; Yin, Q ; Guevara Caiquetan, Alicia del Carmen. Impact of glacial climate on soil formation at the end of the Pleistocene, Ecuador. International Conference on Permafrost ICOP2016 (Postdam, Germany, du 20/06/2016 au 24/06/2016).
2016
Vanacker, Veerle ; Schoonejans, Jerome ; Opfergelt, Sophie ; Ameijeiras Mariño, Yolanda ; Christl, Marcus. Kinetically limited weathering at low denudation rates in semi-arid climates. AGU Fall meeting 2016 (San Francisco, du 12/12/2016 au 16/12/2016).
2016
Opfergelt, Sophie ; Williams, Helen ; Cornélis, Jean-Thomas ; Guicharnaud, Rannveig ; Georg, R.B. ; Siebert, Chris ; Gislason, S.R. ; Halliday, A.N. ; Burton, K.W.. Seasonal freeze-thaw cycles and iron mobilization from peat soils: role of organo-metallic complexes. AGU Fall Meeting 2016 (San Francisco, du 11/12/2016 au 16/12/2016).
2016
Schoonejans, Jerome ; Opfergelt, Sophie ; Vanacker, Veerle. Vertical and lateral particle and element fluxes across soil catenas in southern Brazil. Annual Meeting of European Geoscience Union (Vienna, Austria). In: Geophysical Research Abstracts, Vol. 18, no.EGU2016-3784, p. 3784 (2016).
2016
Ruiz Hinojosa, Maria Gabriela ; Opfergelt, Sophie ; Guevera, Alicia ; Delmelle, Pierre. Étude de l’origine de dépôts volcaniques indurés: cas d’étude sur la Cangahua en Équateur. Les 13es journées d'études des sols JES 2016 (Louvain-la-Neuve, Belgium, du 05/07/2016 au 08/07/2016).
2015
Paque, Mathilde ; Detienne, Marie ; Opfergelt, Sophie ; Delmelle, Pierre. Accessory clay minerals in volcanic ash from the 2010 eruption of Eyjafjallajökull volcano, Iceland. SSSB 2015 (Royal academy of Science and the Arts, Brussels, Belgium, 01/04/2015).
2015
Paque, Mathilde ; Detienne, Marie ; Opfergelt, Sophie ; Delmelle, Pierre. Accessory clay minerals in volcanic ash from the 2010 eruption of Eyjafjallajökull volcano, Iceland (Presentation orale). SSSB 2015 (Royal academy of Science and the Arts, Brussels, Belgium, 01/04/2015).
2015
Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Schoonejans, Jerôme ; Vanacker, Veerle ; Sonnet, Philippe ; Delmelle, Pierre. Assessing the impact of denudation rate on soil chemical weathering intensity in a semi-arid environment, southeast Spain : physico-chemical, mineralogical and geochmical approach. SSSB 2015 (Royal academy of Science and the Arts, Brussels, 01/04/2015).
2015
Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Delmelle, Pierre ; De Jong, Jeroen ; Vanacker, Veerle. Assessing the impact of denudation rate on soil chemical weathering intensity: the response of Si isotopes. GOLDSCHMIDT 2015 (Prague, Czech Republic, du 16/08/2015 au 20/08/2015).
2015
Baronas, Jotautas ; Torres, Mark ; West, A.J. ; Hammond, D.E. ; Clark, K.E. ; Opfergelt, Sophie ; Burton, K.W.. Combining Ge/Si, δ30Si, and δ74Ge to unravel controls on weathering and solute Production in tropical catchments. GOLDSCHMIDT 2015 (Prague, Czech Republic, du 16/08/2015 au 21/08/2015).
2015
Schoonejans, Jérôme ; Vanacker, Veerle ; Opfergelt, Sophie ; Granet, Matthieu ; Chabaux, Francois. Coupling data from U-series and 10Be CRN to evaluate soil steady-state inthe Betic Cordillera. Annual Meeting of European Geoscience Union (Vienna, Austria, du 13/04/2015 au 18/04/2015).
2015
Opfergelt, Sophie ; Delmelle, Pierre ; Duhain, Cédric ; De Potter d'Indoye, Aurélie ; Vera, R ; Yin, Qiuzhen ; Guevara, Alicia ; De La Torre, Ernesto. Evidence of pedogenesis in Late Pleistocene volcanic ash deposits in Ecuador. GOLDSCHMIDT 2015 (Prague, Czech Republic, du 16/08/2015 au 21/08/2015).
2015
Opfergelt, Sophie. How can stable isotope geochemistry help to better assess mineral nutrient dynamics in soils and export towards ecosystems?. GOLDSCHMIDT 2015 (Keynote : Eblemen Award) (Prague, Czech Republic, du 16/08/2015 au 21/08/2015).
2015
Tarasenko, Inga ; Bonneville, S. ; Stenuit, B ; Opfergelt, Sophie ; Delmelle, Pierre. Impact of tephra on soil: is weathering enhanced by fungal activity?. 2nd workshop of VERTIGO _ EU TN (Durham (UK), du 05/09/2015 au 11/09/2015).
2015
Baronas, Jotautas ; Torres, Mark ; West, Josh ; Hammond, Doug ; Clark, Kathryn ; Opfergelt, Sophie ; Burton, Kevin ; McManus, Jim ; Siebert, Chris. Multi-proxy investigation of silicate weathering: Ge/Si, d30Si, d7Li, and d74Ge in Peruvian and Costa Rican watersheds. Southern California Geobiology symposium (UC Riverside, USA, 11/04/2015).
2015
Delvigne, Camille ; Opfergelt, Sophie ; Hofmann, Axel ; Cardinal, Damien ; André, Luc. Si transfers during Archean weathering processes traced by silicon isotopes and Ge/Si ratios. EGU FALL MEETING 2015 (Vienna, Austria, du 12/04/2015 au 17/04/2015). In: Geophysical Research Abstracts, Vol. 17, p. 4858 (2015).
2015
Schoonejans, Jérôme ; Vanacker, Veerle ; Opfergelt, Sophie ; Ameijeiras Mariño, Yolanda ; Kubik, Peter. Spatial gradient of chemical weathering and its coupling with physical erosion in the soils of the Betic Cordillera (SA Spain). EGU GENERAL ASSEMBLY 2015 (Vienne, du 12/04/2015 au 16/04/2015). In: Geophysical Research Abstracts, Vol. 17, no.EGU2015, p. 4519-2 (AVRIL 2015).
2015
Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Schoonejans, Jérôme ; Vanacker, Veerle ; Sonnet, Philippe ; Delmelle, Pierre. Tectonic uplift and denudation rate influence soil chemical weathering intensity in a semi-arid environment, southeast Spain: physico-chemical and mineralogical evidence. EGU GENERAL ASSEMBLY 2015 (Vienne, du 12/04/2015 au 16/04/2015). In: Geophysical Reasearch Abstracts, Vol. 17, no.EGU2015, p. 8320 (avril 2015).
2015
Tarasenko, Inga ; Opfergelt, Sophie ; Behncke, B ; Delmelle, Pierre. Tephra-organic matter interaction : bioweathering and mineralization. SSSB 2015 (Royal Academy of Science and the Arts, Brussels).
2015
Tarasenko, Inga ; Opfergelt, Sophie ; Behncke, Boris ; Delmelle, Pierre. Tephra-organic matter interaction: bioweathering and mineralization. Summer school VERTIGO (Tenerife, du 09/03/2015 au 14/03/2015).
2015
Opfergelt, Sophie ; Delmelle, Pierre. Volcanic ash impact on soil. Summer school VERTIGO (Tenerife, du 09/03/2015 au 14/03/2015).
2015
Aragon, Carlos ; Goddéris, Y ; Opfergelt, Sophie ; Delmelle, Pierre. Weathering of continent-scale volcanic ash deposit: geochemical and climatic implications. GOLDSCHMIDT 2015 (Prague, Czech Republic, du 16/08/2015 au 20/08/2015).
2014
Detienne, Marie ; Delmelle, Pierre ; Guevara Caiquetan, Alicia del Carmen ; Samaniego, P ; Bustillos, J ; Sonnet, Philippe ; Opfergelt, Sophie. Cayambe volcano debris flow deposits (Ecuador): a particle-size distribution and mineralogical study. SSSB Young Soil Scientist Day 2014 (Bruxelles, 26/02/2014).
2014
Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Schoonejans, Jérôme ; Vanacker, Veerle ; Sonnet, Philippe ; Delmelle, Pierre. Chemical weathering in response to tectonic uplift and denudation rate in a semi-arid environment, southeast Spain. SSSB Thematic Day 2014 : Plant-soil interactions in a changing world. (Brussels, Belgium, 05/12/2014).
2014
Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Schoonejans, Jérôme ; Vanacker, Veerle ; Sonnet, Philippe ; Delmelle, Pierre. Chemical weathering in response to tectonic uplift and denudation rate in a semi-arid environment, southeast Spain.. EGU General Assembly 2014-6429, 2014. (Vienna, Austria, du 27/04/2014 au 02/05/2014).
2014
Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Schoonejans, Jérôme ; Vanacker, Veerle ; Sonnet, Philippe ; Delmelle, Pierre. Chemical weathering in response to tectonic uplift and denudation rate in a semi-arid environment, southeast Spain.. EGU 2014 (Vienna, Austria, du 27/04/2014 au 02/05/2014). In: Geophysical Research Abstracts, Vol. 16, p. 9714-1 (mai 2014).
2014
Schoonejans, Jérôme ; Vanacker, Veerle ; Opfergelt, Sophie ; Ameijeiras Mariño, Yolanda ; Peter, W. Kubik. Coupling of physical erosion and chemical weathering after phases of intense human activity. EGU General Assembly 2014-6429, 2014. (Vienna, Austria, du 27/04/2014 au 02/05/2014). In: Geophysical Research Abstracts, Vol. 16, p. 6429 (2014).
2014
Schoonejans, Jérôme ; Vanacker, Veerle ; Opfergelt, Sophie ; Ameijeiras Mariño, Yolanda. Coupling physical erosion and chemical weathering along a tectonic gradient in the Betic Cordillera (SE Spain). SSSB Thematic Day 2014 : Plant-soil interactions in a changing world. (Brussels, Belgium, 05/12/2014).
2014
Vanacker, Veerle ; Bellin, Nicolas ; Schoonejans, Jérôme ; Opfergelt, Sophie. Dynamic soil properties in response to anthropogenic disturbances. Open PAGES 2014 Focus 4 workshop (Leuven, Belgium, du 03/02/2014 au 07/02/2014).
2014
Vanacker, Veerle ; Schonnejans, Jerome ; Bellin, Nicolas ; Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Christl, Marcus. EP33B-3636 Detecting Anthropogenic Disturbance on Weathering and Erosion Processes. AGU Fall meeting 2014. (San Franciso, du 14/12/2014 au 19/12/2014).
2014
Opfergelt, Sophie ; Williams, H.M ; Cornélis, Jean-Thomas ; Van Hoye, Florence ; Guicharnaud, R.A. ; Sigfusson, B ; Georg, R.B ; Siebert, C ; Gislason, S.R. ; Halliday, A.N ; Burton, K.W.. Impact of the soil weathering degree on the fate of soil organic carbon, Fe and Si: insights from Si and Fe isotopes in Icelandic soils.. Goldschmidt 2014 (Sacramento, USA, du 08/06/2014 au 13/06/2014).
2014
Doetterl, Sebastian ; Cornélis, Jean-Thomas ; Opfergelt, Sophie ; Boeckx, Pascal ; Bodé, Samuel ; Six, Johan ; Van oost, Kristof. The distribution of secondary mineral phases along an eroding hillslope ant its effect on carbon stabilization mechanisms and the fate of soil carbon fractions. EGU 2014 EUROPEAN GEOSCIENCES UNION (Vienna, Austria). In: Geophysical Research Abstracts, Vol. 16, p. 6514 (27/04/2014-02/05/2014).
2013
Detienne, Marie ; Delmelle, Pierre ; Guevara, Alicia ; Samaniego, P. ; Bustillos, J. ; Sonnet, Philippe ; Opfergelt, Sophie. A mineralogical and granulometric study of Cayambe volcano debris avalanche deposit. AGU Fall Meeting (San Francisco, CA, USA, du 09/12/2013 au 13/12/2013).
2013
Maters, Elena ; Delmelle, Pierre ; Ayris, Paul ; Guevara, Alicia ; Opfergelt, Sophie. Acidic processing enhances iron solubility in volcanic ash: a mechanism for increased iron input and organic carbon production upon ash deposition to the surface ocean. IAVCEI 2013 Scientific Assembly (Kagoshima, Japan, du 20/07/2013 au 24/07/2013).
2013
Opfergelt, Sophie ; Burton, K.W. ; Pogge von Strandmann , P.A.E. ; Gislason, S.R. ; Halliday, A.N.. Changing riverine silicon isotope delivery to the ocean over glacial-interglacial intervals? Evidence from glaciated basaltic terrains. Goldschmidt conference (Florence, Italy, du 25/08/2013 au 30/08/2013). In: Mineralogical Magazine, Vol. 77, p. 1894.
2013
Opfergelt, Sophie. Chemical weathering under climatic gradients. LHyGeS (Strasbourg, France, 07/02/2013).
2013
Opfergelt, Sophie ; Burton, K.W. ; Georg, R.B. ; West, A.J. ; Guicharnaud, R.A. ; Sigfusson, B. ; Siebert, C. ; Gislason, S.R. ; Halliday, A.N.. Controls on magnesium fluxes from basalt weathering and the role of plant cycling: evidence from Mg isotopes in Icelandic soils. EnvironMetal Isotopes (Ascona, Switzerland, du 19/08/2013 au 23/08/2013).
2013
Maters, Elena ; Ayris, Paul ; Jacques, Caroline ; Guevara, Alicia ; Henley, Richard ; Opfergelt, Sophie ; Delmelle, Pierre. Iron mobilisation from volcanic ash/glass by atmospheric processing. Goldschmidt 2013 conference (Florence, Italy, du 25/08/2013 au 30/08/2013). In: Mineralogical Magazine, Vol. 77, p. 1708 (2013).
2013
Siebert, C. ; Pett-Ridge, J. ; Opfergelt, Sophie ; Halliday, A.N. ; Burton, K.W.. Molybdenum isotopes as proxy for soil processes. EnvironMetal Isotopes 2013 (EMI2013) (Ascona, Switzerland, du 19/08/2013 au 23/08/2013).
2013
Delmelle, Pierre ; Ayris, Paul ; Maters, Elena ; Opfergelt, Sophie ; Henley, Richard W. New insights into scavenging of fluoride by ash in volcanic eruption plumes. IAVCEI 2013 Scientific Assembly (Kagoshima, Japan, du 20/07/2013 au 24/07/2013).
2013
Doetterl, Sebastian ; Opfergelt, Sophie ; Cornélis, Jean-Thomas ; Boecks, P. ; Van Oost, Kristof ; Six, J.. The effects of the mineral phase on C stabilization mechanisms and microbial dynamics along an eroding slope transect. AGU Fall Meeting (San Francisco, CA, USA, du 09/12/2013 au 13/12/2013).
2013
Opfergelt, Sophie. The evolving isotopic toolbox. Gordon Research Conference - Catchment Science (Andover, NH, US, du 16/06/2013 au 21/06/2013).
2013
Opfergelt, Sophie. Tracing chemical weathering under climatic gradients with silicon isotopes. IPGP Séminaire Géochimie (Paris, France).
2012
Neely, R ; Siebert, C ; Burton, K.W. ; Opfergelt, Sophie ; Einarsson, A.. Biological fractionation of molybdenum: Lake Mývatn, Iceland. Research Symposium of the School of Engineering and Natural Sciences, (Iceland, 2012). In: Proceedings of the 2012 Research Symposium of the School of Engineering and Natural Sciences, p. 55.
2012
Opfergelt, Sophie. Continental weathering and biological cycling: tracing with silicon isotopes. Workshop on Weathering and Erosion (Ebelman’s meeting) (Académie des Sciences de Paris, Paris, France, du 26/03/2012 au 27/03/2012).
2012
Maters, Elena ; Delmelle, Pierre ; Ayris, Paul ; Opfergelt, Sophie. Iron dissolution from volcanic ash in low-pH atmospheric water: a key control on volcanic iron input to the surface ocean?. AGU Fall Meeting 2012 (San Francisco, United States, du 03/12/20012 au 07/12/2012).
2012
Williams, H ; Opfergelt, Sophie ; Burton, K.W.. The influence of weathering processes on Fe isotopes in Icelandic soils.. Goldschmidt conference (Montréal, Canada, du 24/06/2012 au 29/06/2012). In: Mineralogy magazine, Vol. 75, p. 2547 (2012).
2012
Doetterl, Sebastian ; Cornélis, Jean-Thomas ; Opfergelt, Sophie ; Van Oost, Kristof. The varying contribution of pedogene oxides and clay minerals to stabilize carbon along slope transect.. Eurosoil (Bari, Italia, du 02/07/2012 au 6/07/2012).
2012
Delvigne, C. ; Opfergelt, Sophie ; Hoffman, A ; Cardinal, D ; André, L. Understanding Archean weathering using silicon isotopes and Ge/Si ratios.. Goldschmidt conference (Montréal, Canada, du 24/06/2012 au 29/06/2012). In: Mineralogical Magazine, Vol. 75, p. 1641 (2012).
2012
Alfredsson, H.A. ; Opfergelt, Sophie ; Burton, K.W. ; Gislason, S.R.. Volcanic impact on the silicon isotope composition in natural waters during the 2010 Eyjafjallajökull eruption, S-Iceland. Goldschmidt conference (Montréal, Canada, du 24/06/2012 au 29/06/2012). In: Mineralogical Magazine, no.75, p. 1414 (June 2012).
2011
Opfergelt, Sophie ; Delvaux, Bruno ; Georg, R.B. ; Cabidoche, Y.M. ; Burton, K.W. ; Halliday, A.N.. Contrasting silicon and magnesium isotope fractionation with clay mineralogy in volcanic soil weathering sequences, Guadeloupe. Goldschmidt conference (Prague, Czech Republic, du 14/08/2011 au 19/08/2011). In: Mineralogical Magazine, Vol. 75, p. 742 (2011).
2011
Opfergelt, Sophie ; Eiriksdottir , E.S. ; Burton, K.W. ; Einarsson , A. ; Siebert , C. ; Gislason , S.R. ; Halliday , A.N.. Impact of freshwater diatom productivity on silicon isotopes and silicon fluxes: Lake Myvatn, Iceland. 4th Workshop on Aqueous Chemistry and Biochemistry of Silicon (Cambridge, UK, du 21/06/2011 au 23/06/2011). In: Metal Ions in Biology and Medicine, John Libbey Eurotext ltd, 2011. 978-2742008094, 330.
2011
Opfergelt, Sophie ; Eiriksdottir, E.S. ; Burton, K.W. ; Einarsson, A ; Siebert, C. ; Gislason, S.R. ; Halliday, A.N.. Impact of freshwater diatom productivity on silicon isotopes and silicon fluxes: Lake Myvatn, Iceland. Isotopes in Biogenic Silica (IBiS), 2011 (Antwerp, Belgium, du 04/04/2011 au 06/04/2011).
2011
Opfergelt, Sophie ; Georg, R.B. ; Burton, K.W. ; Guicharnaud, R ; Siebert, C. ; Gislason, S.R. ; Halliday, A.N.. Magnesium isotopes as a proxy of physico-chemical processes controlling soil weathering fluxes. Young Soil Scientists Day, 2011 (Brussels, 23/02/2011).
2011
Siebert, C. ; Pett-Ridge , J. ; Opfergelt, Sophie ; Burton , K.W. ; Halliday , A.N.. Molybdenum Isotope fractionation during soil formation: a new proxy?. Goldschmidt conference (Prague, Czech Republic, du 14/08/2011 au 19/08/2011). In: Mineralogical Magazine, Vol. 75, p. 1872 (2011).
2011
Opfergelt, Sophie. Principe du MC-ICP-MS et applications avec les isotopes stables du Si et du Mg. Formation Continue, IPL (Brussel, Belgium, 26/05/2011).
2011
West , A.J. ; Opfergelt, Sophie ; James , R. ; Pogge von Strandmann, P.A.E. ; Burton , K.W.. Probing the silicon isotope signature of supply limited chemical weathering in the Cordillera Central of Costa Rica. Goldschmidt conference (Prague, Czech Republic, du 14/08/2011 au 19/08/2011). In: Mineralogical Magazine, Vol. 75, p. 2148 (2011).
2011
Opfergelt, Sophie. Recent advances with Si and Mg isotopes to understand weathering processes. MRAC (Tervuren, Belgium, 14/03/2011).
2011
Opfergelt, Sophie ; Georg, R.B. ; Burton, K.W. ; Guicharnaud, R. ; Siebert, C. ; Gislason, S.R. ; Halliday, A.N.. Seasonal magnesium isotope variations in soil solutions reflecting physico-chemical processes controlling soil weathering fluxes. Goldschmidt conference (Prague, Czech Republic, du 14/08/2011 au 19/08/2011). In: Mineralogical Magazine, Vol. 75, p. 1571 (2011).
2011
Opfergelt, Sophie ; Georg , R.B. ; Burton , K.W. ; Guicharnaud, R. ; Siebert , C. ; Gislason , S.R. ; Halliday , A.N.. Silicon isotopes in allophane as a proxy for mineral formation in volcanic soils. 9th International Symposium on the Geochemistry of the Earth's surface (GES-9) (Boulder, Colorado, USA, du 03/06/2011 au 07/06/2011).
2011
Opfergelt, Sophie. The soil-plant cycle as a dynamic biogeochemical system: isotopic approach for magnesium. UCL/ELIE/SOLS (Louvain-la-Neuve, 21/01/2011).
2010
Georg, R.B. ; Opfergelt, Sophie. Analysing the isotopic evolution of silicon in the weathering zone by numerical modelling. AGU Fall Meeting, 2010 (San Francisco, USA, du 13/12/2010 au 17/12/2010). In: EOS Trans. AGU, Fall Meet. Suppl., Vol. 91, no. 52, p. B21D-0335.
2010
Opfergelt, Sophie. Les isotopes du Si et du Mg dans le système plante-sol : traçage des processus d’altération. Réunion scientifique OMP sur les isotopes stables non traditionnels, 2010 (Toulouse, France, du 12/10/2010 au 13/10/2010).
2010
Opfergelt, Sophie ; Georg, R.B. ; Burton, K.W. ; Delvaux, Bruno ; Siebert, C. ; Guicharnaud, R ; Cadiboche, Y.M ; Halliday, A.N.. Magnesium isotope fractionation in volcanic soils controlled by clay mineralogy and exchangeable Mg. AGU Fall Meeting, 2010 (San Francisco, USA, du 13/12/2010 au 17/12/201). In: EOS Trans. AGU, Fall Meet. Suppl., Vol. 91, no. 52, p. B23K-05.
2010
Opfergelt, Sophie. Preparation and physical, chemical, mineralogical characterisation of samples: insights from soils. Analytical Training Day, Department of Earth Sciences, University of Oxford (Oxford, UK, 23/02/2010).
2010
Siebert, C. ; Opfergelt, Sophie ; Burton, K.W. ; Einarsson, A ; Eiriksdottir, E.S ; Gislason, S.R. ; Halliday, A.N. Quantifying the impact of freshwater diatom productivity on silicon isotopes and silicon fluxes: Lake Myvatn, Iceland. AGU Fall Meeting, 2010 (San Francisco, USA, du 13/12/2010 au 17/12/201). In: EOS Trans. AGU, Fall Meet. Suppl., Vol. 91, no. 52, p. V23A-2396.
2010
Opfergelt, Sophie ; Cardinal, Damien ; André, Luc ; Delvaux, Bruno. Silicon isotopes in the soil-plant system. UK Isotope Ratio MS Users Group SIMSUG, 2010 (University of Exeter, Devon, UK., du 28/04/2010 au 30/04/2010).
2010
Cornélis, Jean-Thomas ; Delvaux, Bruno ; Cardinal, Damien ; André, Luc ; Ranger , Jacques ; Opfergelt, Sophie. The source of dissolved silicon in soil surface solutions of a temperate forest ecosystem: Ge/Si and Si isotope ratios as biogeochemical tracers. AGU Fall meeting (San Francisco, USA, du 13/12/2010 au 17/12/2010). In: EOS Trans. AGU, Fall Meet. Suppl., Vol. 91, no. 52, p. B23K-04.
2010
Opfergelt, Sophie ; Georg, R.B. ; Burton, K.W. ; Guicharnaud, R. ; Gislason, S.R. ; Halliday, A.N. Tracing impact of pedogenic processes on soil solutions with Si and Mg isotopes. 19th World Congress of Soil Science, 2010 (Brisbane, Australia, du 01/08/2010 au 06/08/2010).
2010
Cornélis, Jean-Thomas ; Delvaux, Bruno ; Cardinal, Damien ; André, Luc ; Ranger, R ; Opfergelt, Sophie. Tracing mechanisms controlling the release of dissolved silicon in forest floor leachate : Best poster presentation award. ENVITAM PhD Day, 2010 (Namur, 12/01/2010).
2010
Opfergelt, Sophie. Tracing weathering processes in Iceland with magnesium isotopes in soils. University of Oxford (Oxford, UK, 16/11/2010).
2010
Opfergelt, Sophie ; Cardinal, Damien ; André, Luc ; Delvigne, C. ; Bremond, L ; Delvaux, Bruno. Variations of delta30Si and Ge/Si with weathering and biogenic input in tropical basaltic ash soils under monoculture. Isotopes in Biogenic Silica (IBiS), 2010 (Swansea (Wales), UK, du 08/02/2010 au 09/02/2010).
2009
Cornélis, Jean-Thomas ; Delvaux, Bruno ; Cardinal, Damien ; André, Luc ; Ranger, Jacques ; Opfergelt, Sophie. Ge/Si ratios and Si isotopes tracing mechanisms controlling the release of dissolved silicon in forest soil solutions. 3rd Workshop on the aqueous chemistry and biochemistry of silicon, Silicon by the sea (San Diego, USA, du 07/12/2009 au 11/12/2009).
2009
Opfergelt, Sophie ; Georg, D. ; Burton, K.W. ; Gislason, S.R. ; Sigfusson, B ; Halliday, A.N.. Multi-isotopic approach to assess the role of soil weathering processes on rivers draining a basaltic catchment. AGU Fall meeting (San Francisco, du 14/12/2009 au 18/12/2009). In: EOS Trans. AGU, Fall Meet. Suppl., Vol. 90, no. 52, p. PP23A-1379.
2009
Opfergelt, Sophie ; Cardinal, D ; André, L. ; Delvigne, C ; Bremond, L. ; Delvaux, Bruno. Tracing impact of banana culture in tropical basaltic ash soils using delta30Si and Ge/Si. 3rd Workshop on the aqueous chemistry and biochemistry of silicon, Silicon by the sea (San Diego, USA, du 07/12/2009 au 11/12/2009).
2009
Cardinal, Damien ; Fripiat, F ; Opfergelt, Sophie ; Hughes, H ; Cavagna, A.-J ; André, Luc. Use of silicon isotopes in marine and continental systems to study the origin, fate and fluxes of silicon. EGU General Assembly, 2009 (Vienna, Auriche, du 19/04/2009 au 24/04/2009). In: Geophysical Research Abstracts, Vol. 11, p. 5347 (2009).
2009
Opfergelt, Sophie ; Cardinal , D. ; André , L. ; Delvigne , C. ; Bremond , L. ; Delvaux, Bruno. Variations of delta30Si and Ge/Si with weathering and biogenic input in tropical basaltic ash soils under monoculture. Department of Earth Sciences, University of Oxford (Oxford, UK, 01/10/2009).
2008
Opfergelt, Sophie ; Delvigne, C ; Cardinal, D ; Delvaux, Bruno ; André, L.. Silicon and germanium uptake and transport by plants using Ge/Si ratio and Si isotopes. Silicon in Agriculture conference (Wild Coast Sun, South Africa, du 26/10/2008 au 31/10/2008).
2008
Opfergelt, Sophie ; Delvaux, Bruno ; Cardinal, D. ; Delvigne, C. ; André, L.. Silicon cycle in weathering sequences of volcanic soils in Cameroon using delta30Si and Ge/Si. Goldschmidt Conference (Vancouver, Canada, du 13/07/2008 au 18/07/2008). In: Geochimica et Cosmochimica Acta, Vol. 72, no. 12, p. A707-A707 (2008).
2008
Opfergelt, Sophie ; Delstanche, Séverine ; de Bournonville, Guillaume ; André, Luc ; Cardinal, Damien ; Delvaux, Bruno. Silicon isotopic fractionation by Si sorption onto iron oxides: evidence from synthesized oxides and basaltic ash soils. Eurosoil 2008 (Vienna, Autriche, du 25/08/2008 au 29/08/2008). In: Eurosoil 2008, Book of Abstracts, University of Natural Resources and Applied Life Sciences, 2008.
2008
Henriet, Céline ; Dorel, Marc ; Opfergelt, Sophie ; Delvaux, Bruno. Silicon status of banana (Musa spp.) reveals the weathering stage of volcanic ash soils in Guadeloupe. Eurosoil, 2008 (Vienna, Auriche, du 25/08/2008 au 29/08/2008). In: Eurosoil 2008, Book of Abstracts, University of Natural Resources and Applied Life Sciences, 2008.
2008
Henriet, Céline ; Opfergelt, Sophie ; Dorel, Marc ; Delvaux, Bruno. Soil weathering degree of volcanic ash soils governs the silicon status of banana (Musa spp.). Silicon in Agriculture Conference, 2008 (Wild Coast Sun, South Africa, du 26/10/2008 au 31/10/2008).
2008
Opfergelt, Sophie ; Cardinal, Damien ; André, Luc ; Delvaux, Bruno. The soil-plant Si cycling in a weathering sequence of volcanic ash soils using Si isotopes. Second Envitam PhD Day (Liège, Belgium, du 29/01/2008 au 29/01/2008).
2008
Opfergelt, Sophie ; Cardinal , D. ; André, L. ; Delvaux, Bruno. The soil-plant Si cycling in a weathering sequence of volcanic ash soils using Si isotopes. INRA Champenoux (Nancy, France, 18/02/2008).
2007
Abraham, Kathrin ; Opfergelt, Sophie ; Cardinal, D. ; Hofmann, A. ; Foley, S. ; André, L.. Si isotopes as a clue for understanding Eoarchaean silicifications. Goldschmidt Conference (Cologne, Germany, du 19/08/2007 au 24/08/2007). In: Geochimica et Cosmochimica Acta, Vol. 71, no. 15, p. A3-A3 (2007).
2007
Delvaux, Bruno ; Henriet, Céline ; André, L. ; Cardinal, D ; Opfergelt, Sophie. Silicon accumulation in banana plant reveals the soil weathering stage of volcanic ash soils. Cambridge Silicon Christmas Brainteaser (Cambridge, UK, du 06/12/2007 au 07/12/2007).
2007
Abraham, K. ; Opfergelt, Sophie ; Cavagna, A.-J ; Fripiat, F ; Planchon, F. ; de Jong, J.T.M. ; André, L. ; Cardinal, D. Solving interference on 30Si with a MC-ICP-MS Nu Plasma. EGU meeting (Vienna, Autriche, du 16/04/2007 au 20/04/2007). In: Geophysical Research Abstracts, Vol. 9, p. A-08363.
2007
Opfergelt, Sophie ; Cardinal, Damien ; Delstanche, Séverine ; Delvaux, Bruno ; André, Luc. Towards a better understanding of continental silicon cycle using Si stable isotopes. Congrès des doctorants IPGP (Paris, France, du 26/03/2007 au 29/03/2007).
2007
Opfergelt, Sophie ; Delvaux, Bruno ; Cardinal, D. ; André, L.. Using delta30Si to follow the soil-plant Si cycling in a weathering sequence of volcanic ash soils, Cameroon. Goldschmidt Conference (Cologne, Germany, du 19/08/2007 au 24/08/2007). In: Geochimica et Cosmochimica Acta, Vol. 71, no. 15, p. A741-A741 (2007).
2007
Opfergelt, Sophie. Utilisation des isotopes stables du Si dans l’étude du cycle continental du Si. Laboratoire des Mécanismes et Transferts en Géologie (LMTG) (Toulouse, France, du 04/04/2007 au 05/04/2007).
2006
Delstanche, Séverine ; Opfergelt, Sophie ; Cardinal, Damien ; André, Luc ; Delvaux, Bruno. Adsorption of silica on synthetic iron oxides fractionates stable silicon isotopes. AGU Fall meeting (San Franciso, USA, du 11/12/2006 au 15/12/2006). In: EOS Trans. AGU, Fall Meet. Suppl., Vol. 87, no. 52, p. V21B-0581.
2006
Reynolds, B.C. ; Aggarwal, J. ; Brzezinski, M.A. ; Cardinal, D ; Engström, E ; Georg, R.B. ; Land, M ; Leng, M.J. ; Opfergelt, Sophie ; Vroon, P.Z.. An inter-laboratory calibration of Si isotope reference materials. Goldschmidt Conference (Melbourne, Australia, du 27/08/2006 au 01/09/2006). In: Geochimica et Cosmochimica Acta, Vol. 70, no. 18, p. A529 (2006).
2006
Opfergelt, Sophie ; Cardinal, D ; Delvaux, Bruno ; André, L.. Preliminary results on the quantification and SEM observations of amorphous silica in Cameroon rivers. Workshop on the global transport of amorphous silica by rivers (Paris, France, du 26/09/2006 au 27/09/2006).
2006
André, Luc ; Cardinal, Damien ; Opfergelt, Sophie. Si isotopes in presolar, solar and terrestrial components. Astrobiology and Habitability Workshop, 2006 (Brussels, 13/06/2006).
2006
André, Luc ; Cardinal, Damien ; Opfergelt, Sophie. Silicon isotopes as a new tracer to quantify superficial processes: the geological perspective. Geologica Belgica Conference, 2006 (Liège, du 07/09/2006 au 08/09/2006).
2006
Opfergelt, Sophie ; Delstanche, Séverine ; Cardinal, Damien ; André, Luc ; Delvaux, Bruno. Silicon isotopic fractionation in a tropical soil-plant system. AGU Fall meeting (San Francisco, USA, du 11/12/2006 au 15/12/2006). In: EOS Trans. AGU, Fall Meet. Suppl., Vol. 87, no. 52, p. V21B-0580.
2006
Delmelle, Pierre ; Opfergelt, Sophie ; Boivin, P ; Delvaux, Bruno. Water saturation of hydrothermal smectite-rich clay might have promoted slope instability prior the 1998 debris avalanche at casito volcano, Nicaragua. AGU Fall Meeting (San Francisco, USA, du 11/12/2006 au 15/12/2006). In: EOS Trans. AGU, Fall Meet. Suppl., Vol. 87, no. 52, p. T13D-0546 (2006).
2005
Opfergelt, Sophie. Comment les plantes fractionnent-elles les isotopes du silicium ? Eléments de réponses avec le bananier. CEREGE, Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (Aix-en-Provence, 22/03/2005).
2005
Opfergelt, Sophie. Rôle des phytolithes dans le cycle biogéochimique superficiel du silicium. Résultats acquis et objectifs de la mission de terrain. CARBAP, Centre Africain de Recherche sur Bananiers et Plantains (Njombé, Cameroun, 28/10/2005).
2005
Opfergelt, Sophie ; Cardinal, Damien ; Henriet, Céline ; André, Luc ; Delvaux, Bruno. Silicon isotope fractionation between plant parts in banana: in situ vs. in vitro. Seventh International Symposium on the Geochemistry of the Earth's surface (GES-7), 2005 (Aix-en-Provence, France, du 23/08/2005 au 27/08/2005).
2005
Opfergelt, Sophie ; Cardinal, Damien ; Henriet, Céline ; Delvaux, Bruno ; André, Luc. Silicon isotope fractionation by banana under continuous nutrient and silica flow. Day of Young Soil Scientists, Belgian Society of Soil Science, 2005 (Brussels, 23/02/2005).
2005
Opfergelt, Sophie ; Henriet, Céline ; Cardinal, D ; André, L. ; Delvaux, Bruno. Silicon isotopic fractionation in banana roots in relation to Si uptake mode. International Chemical Congress of Pacific Basin Societies, Pacifichem 2005 (Honolulu, Hawaii, du 15/12/2005 au 20/12/2005).
2004
Opfergelt, Sophie ; Delmelle, Pierre ; Delvaux, Bruno. Characterization of the soft material implied in the release of the debris avalanche of the Casita volcano, Nicaragua. Day of Young Soil Scientists, Belgian Society of Soil Science, (Bruxelles, 18/02/2004).
2004
Opfergelt, Sophie ; Cardinal, D ; Henriet, Céline ; Delvaux, Bruno ; André, L.. Silicon isotope fractionation by banana under continuous nutrient and silica flux. AGU Fall meeting (San Franciso, USA, du 13/12/2004 au 17/12/2004). In: EOS Trans. AGU, Fall Meet. Suppl., Vol. 85, no. 47, p. V51A-0520.
2008
Opfergelt, Sophie. Silicon cycle in the soil-plant system : biogeochemical tracing using Si isotopes, prom. : Delvaux, Bruno ; André, Luc, 2008-05-26.
2002
Opfergelt, Sophie. Characterization of the soft materials involved in debris avalanche at Casita volcano, Nicaragua : MSc thesis, 2002. 86 p.
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