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1. • Journal article

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   The 1998 debris avalanche at Casita volcano, Nicaragua: Investigation of the role of hydrothermal smectite in promoting slope instability

   Opfergelt, Sophie[UCL] Delmelle, Pierre[UCL] Boivin, P. Delvaux, Bruno[UCL] (2006) Geophysical Research Letters — Vol. 33, no. 15, p. L15305 (2006)
2. • Journal article

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   Silicon isotopic fractionation by banana (Musa spp.) grown in a continuous nutrient flow device

   Opfergelt, Sophie[UCL] Cardinal, D. Henriet, Céline[UCL] Draye, Xavier[UCL] André, L. Delvaux, Bruno[UCL] (2006) Plant and Soil : international journal on plant-soil relationships — Vol. 285, no. 1-2, p. 333-345 (2006)
3. • Speech

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   Using delta30Si to follow the soil-plant Si cycling in a weathering sequence of volcanic ash soils, Cameroon

   Opfergelt, Sophie[UCL] Delvaux, Bruno[UCL] Cardinal, D. André, L. (2007) Goldschmidt Conference — Cologne, Germany
4. • Journal article

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   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]

   Opfergelt, Sophie[UCL] Burton, K.W. Pogge von Strandmann , P.A.E. Gislason, S.R. Halliday, A.N. (2013) Earth and Planetary Science Letters — Vol. 375, p. 451-452 (2013)
5. • Journal article

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   Tracing mechanisms controlling the release of dissolved silicon in forest soil solutions using Si isotopes and Ge/Si ratios

   Cornélis, Jean-Thomas[UCL] Delvaux, Bruno[UCL] Cardinal, D. André, Luc Ranger, J. Opfergelt, Sophie[UCL] (2010) Geochimica et Cosmochimica Acta — Vol. 74, no. 14, p. 3913-3924 (2010)
6. • Speech

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   Accessory clay minerals in volcanic ash from the 2010 eruption of Eyjafjallajökull volcano, Iceland

   Paque, Mathilde[UCL] Detienne, Marie[UCL] Opfergelt, Sophie[UCL] Delmelle, Pierre[UCL] (2015) SSSB 2015 — Royal academy of Science and the Arts, Brussels, Belgium
7. • Journal article

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   Silicon isotopic fractionation during adsorption of aqueous monosilicic acid onto iron oxide

   Delstanche, Séverine[UCL] Opfergelt, Sophie[UCL] Cardinal, Damien Elsass, Françoise André, Luc Delvaux, Bruno[UCL] (2009) Geochimica et Cosmochimica Acta — Vol. 73, no. 4, p. 923-934 (2009)
8. • Journal article

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   Silicon isotope fractionation between plant parts in banana: In situ vs. in vitro

   Opfergelt, Sophie[UCL] Cardinal, Damien Henriet, Céline[UCL] André, Luc Delvaux, Bruno[UCL] (2006) Journal of Geochemical Exploration — Vol. 88, no. 1-3, p. 224-227 (2006)
9. • Journal article

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   Distinct silicon and germanium pathways in the soil-plant system: Evidence from banana and horsetail

   Delvigne, C. Opfergelt, Sophie[UCL] Cardinal, D. Delvaux, Bruno[UCL] André, L. (2009) Journal of Geophysical Research - Biogeosciences — Vol. 114, p. G02013 (2009)
10. • Journal article

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    Magnesium retention on the soil exchange complex controlling Mg isotope variations in soils, soil solutions and vegetation in volcanic soils

    Opfergelt, Sophie[UCL] Burton, K.W. Georg, R.B. West, A.J. Guicharnaud, R.A. Sigfusson, B. Siebert, C. Gislason, S.R. Halliday, A.N. (2014) Geochimica et Cosmochimica Acta — Vol. 125, p. 110-130 (2014)
11. • Speech

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    The soil-plant Si cycling in a weathering sequence of volcanic ash soils using Si isotopes

    Opfergelt, Sophie[UCL] Cardinal , D. André, L. Delvaux, Bruno[UCL] (2008) INRA Champenoux — Nancy, France
12. • Journal article

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    Silicon isotopes and continental weathering processes: assessing controls on Si transfer to the ocean

    Opfergelt, Sophie[UCL] Delmelle, Pierre[UCL] (2012) Comptes rendus. Geoscience — Vol. 344, no. 11-12, p. 723-738 (2012)
13. • Journal article

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    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

    Tallberg, Petra Opfergelt, Sophie[UCL] Cornélis, Jean-Thomas[UCL] Liljendahl, Anne Weckström, Jan (2015) Aquatic sciences — no. 77, p. 293-305 (2015)
14. • Speech

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    Continental weathering and biological cycling: tracing with silicon isotopes

    Opfergelt, Sophie[UCL] (2012) Workshop on Weathering and Erosion (Ebelman’s meeting) — Académie des Sciences de Paris, Paris, France
15. • Speech

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    The evolving isotopic toolbox

    Opfergelt, Sophie[UCL] (2013) Gordon Research Conference - Catchment Science — Andover, NH, US
16. • Speech

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    The source of dissolved silicon in soil surface solutions of a temperate forest ecosystem: Ge/Si and Si isotope ratios as biogeochemical tracers

    Cornélis, Jean-Thomas[UCL] Delvaux, Bruno[UCL] Cardinal, Damien André, Luc Ranger , Jacques Opfergelt, Sophie[UCL] (2010) AGU Fall meeting — San Francisco, USA
17. • Speech

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    Contrasting silicon and magnesium isotope fractionation with clay mineralogy in volcanic soil weathering sequences, Guadeloupe

    Opfergelt, Sophie[UCL] Delvaux, Bruno[UCL] Georg, R.B. Cabidoche, Y.M. Burton, K.W. Halliday, A.N. (2011) Goldschmidt conference — Prague, Czech Republic
18. • Speech

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    Variations of delta30Si and Ge/Si with weathering and biogenic input in tropical basaltic ash soils under monoculture

    Opfergelt, Sophie[UCL] Cardinal , D. André , L. Delvigne , C. Bremond , L. Delvaux, Bruno[UCL] (2009) Department of Earth Sciences, University of Oxford — Oxford, UK
19. • Speech

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    A mineralogical and granulometric study of Cayambe volcano debris avalanche deposit

    Detienne, Marie[UCL] Delmelle, Pierre[UCL] Guevara, Alicia[UCL] Samaniego, P. Bustillos, J. Sonnet, Philippe[UCL] Opfergelt, Sophie[UCL] (2013) AGU Fall Meeting — San Francisco, CA, USA
20. • Report

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    Characterization of the soft materials involved in debris avalanche at Casita volcano, Nicaragua : MSc thesis

    Opfergelt, Sophie[UCL] (2002)
21. • Journal article

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    Desilication in Archean weathering processes traced by silicon isotopes and Ge/Si ratios

    Delvigne, Camille Opfergelt, Sophie[UCL] Cardinal, Damien Hofmann, Axel André, Luc (2016) Chemical Geology — , no.420, p. 139-147 (2016)
22. • Speech

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    Cayambe volcano debris flow deposits (Ecuador): a particle-size distribution and mineralogical study

    Detienne, Marie[UCL] Delmelle, Pierre[UCL] Guevara Caiquetan, Alicia del Carmen[UCL] Samaniego, P Bustillos, J Sonnet, Philippe[UCL] Opfergelt, Sophie[UCL] (2014) SSSB Young Soil Scientist Day 2014 — Bruxelles
23. • Speech

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    Impact of glacial climate on soil formation at the end of the Pleistocene, Ecuador

    Opfergelt, Sophie[UCL] Delmelle, Pierre[UCL] Duhain, Cédric[UCL] De Potter d'Indoye, A[UCL] Vera, R Yin, Q[UCL] Guevara Caiquetan, Alicia del Carmen (2016) International Conference on Permafrost ICOP2016 — Postdam, Germany
24. • Journal article

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    The silicon isotope composition of Ethmodiscus rex laminated diatom mats from the tropical West Pacific: Implications for silicate cycling during the Last Glacial Maximum

    Xiong, Z Li, Tiegang Algeo, Thomas Doering, Kristin Frank, Martin Brzezinski, Mark A. Chang, Fengming Opfergelt, Sophie[UCL] Crosta, Xavier Jiang, Fuqing Wan, Shiming Zhai, Bin (2015) Paleooceanography — no. 30, p. 803-823 (2015)
25. • Speech

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    The distribution of secondary mineral phases along an eroding hillslope ant its effect on carbon stabilization mechanisms and the fate of soil carbon fractions

    Doetterl, Sebastian Cornélis, Jean-Thomas[UCL] Opfergelt, Sophie[UCL] Boeckx, Pascal Bodé, Samuel Six, Johan Van oost, Kristof[UCL] (2014) EGU 2014 EUROPEAN GEOSCIENCES UNION — Vienna, Austria

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