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1. • Speech

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   The influence of weathering processes on Si, Mg, Fe, Zn, and Mo stable isotope fractionation in the Critical Zone: a case study from Icelandic soils

   Opfergelt, Sophie[UCL] (2018) Conference “Metal Stable Isotope Geochemistry” & Final IsoNose Workshop — Sorèze, France
2. • Speech

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   Mineral Weathering in Thawing Permafrost: Causes and consequences

   Opfergelt, Sophie[UCL] (2018) “Coupling Earth system function to climatic change” — Bordeaux
3. • Speech

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   Changing conditions for mineral-organic carbon interactions across the permafrost landscape: hot moments more than hot spots?

   Opfergelt, Sophie[UCL] Hirst, Catherine[UCL] Mauclet, Elisabeth[UCL] Monhonval, Arthur[UCL] Thomas, Maxime[UCL] Gaspard, François[UCL] Villani, Maëlle[UCL] Dailly, Hélène[UCL] (2021) AGU Fall Meeting 2021 — Virtual
4. • Speech

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   Influence of permafrost degradation and shift in vegetation on litter and soil properties: case study in Central Alaska

   Villani, Maëlle[UCL] Mauclet, Elisabeth[UCL] Agnan, Yannick[UCL] Edward A. G. Schuur Opfergelt, Sophie[UCL] (2021) Conférence : 7th International Geologica Belgica Meeting 2021 (15/09/21 au 17/09/2021) — Africa Museum (Tervuren, Belgium)
5. • Speech

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   The permafrost mineral reserve: identify potential mineral nutrient hotspots upon thawing

   Opfergelt, Sophie[UCL] (2018) EUCOP5 — Chamonix, France
6. • Speech

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   Tracing controls on iron export from high latitude peat soils

   Opfergelt, Sophie[UCL] (2018) POLAR 2018 — Davos, Switzerland
7. • Speech

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   Distribution of mineral constituents in Yedoma permafrost: implications for Yedoma formation and upon thawing

   Mauclet, Elisabeth[UCL] Opfergelt, Sophie[UCL] Monhonval, Arthur[UCL] Strauss Jens Grosse Guido Fuchs Matthias Schirrmeister Lutz (2018) 5th European Conference on Permafrost — Chamonix, France
8. • Speech

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   Can we use Arctic rivers to detect permafrost thaw?

   Hirst, Catherine[UCL] Opfergelt, Sophie[UCL] (2021) ELI DAY 2021 — LLN - ONLINE ZOOM
9. • Speech

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   Kinetically limited weathering at low denudation rates in semi-arid climates

   Vanacker, Veerle[UCL] Schoonejans, Jerome[UCL] Opfergelt, Sophie[UCL] Ameijeiras Mariño, Yolanda[UCL] Christl, Marcus (2016) AGU Fall meeting 2016 — San Francisco
10. • Speech

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    Vertical and lateral particle and element fluxes across soil catenas in southern Brazil

    Schoonejans, Jerome Opfergelt, Sophie[UCL] Vanacker, Veerle[UCL] (2016) Annual Meeting of European Geoscience Union — Vienna, Austria
11. • Speech

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    Impact of modern thermokarst on mineral element release: case study in Cape Bounty, Canada

    Thomas, Maxime[UCL] Opfergelt, Sophie[UCL] Monhonval, Arthur[UCL] Bemelmans, Nathan[UCL] Lafreniere Melissa Heslop Joanne Fouché Julien Rochereau Thomas (2019) Artic Week — Paris, France
12. • Speech

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    Influence of Holocene thermokarst activities on mineral element content in Yedoma deposits

    Monhonval, Arthur[UCL] Opfergelt, Sophie[UCL] Mauclet, Elisabeth[UCL] Hirst, Catherine[UCL] Strauss Jens Grosse Guido Schirmeister Lutz Kuhry Peter (2019) Artic Week — Paris, France
13. • Speech

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    WeThaw: Mineral Weathering in Thawing Permafrost

    Opfergelt, Sophie[UCL] Hirst, Catherine[UCL] Mauclet, Elisabeth[UCL] Monhonval, Arthur[UCL] Thomas, Maxime[UCL] Dailly, Hélène[UCL] (2019) Artic Week — Paris, France
14. • Speech

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    Deep material eroded from retrogressive thaw slump: case study in Peel Plateau, west Canadian Arctic

    Thomas, Maxime[UCL] Opfergelt, Sophie[UCL] Monhonval, Arthur[UCL] Hirst, Catherine[UCL] Bröder Lisa Vonk Jorien Keskitalo Kirsi Zolkos Scott Tank Suzanne Kokelj Steve (2019) Artic Week — Paris, France
15. • Speech

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    Effect of thawing permafrost on soil mineral element distribution: case study in Interior Alaska

    Mauclet, Elisabeth[UCL] Opfergelt, Sophie[UCL] Monhonval, Arthur[UCL] Hirst, Catherine[UCL] Piette Aurélien[UCL] Debruxelles, Laurentine[UCL] Schuur Edward A.G. (2019) Artic Week — Paris, France
16. • Speech

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    Permafrost degradation and mineral weathring implications for new sources of nutrients for vegetation

    Mauclet, Elisabeth[UCL] Opfergelt, Sophie[UCL] Hirst, Catherine[UCL] Monhonval, Arthur[UCL] (2018) Midi de rencontre étudiants-chercheurs UCLouvain — Louvain-la-Neuve, Belgium
17. • Speech

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    Mineral element cycling through the soil-plant system upon permafrost thaw: case study in Interior Alaska

    Mauclet, Elisabeth[UCL] Hirst, Catherine[UCL] Monhonval, Arthur[UCL] Debruxelles, Laurentine[UCL] Ledman, Justin Taylor, Meghan Schuur, Edward A.G. Opfergelt, Sophie[UCL] (2021) ELI DAY — LLN - ONLINE ZOOM
18. • Speech

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    Influence of permafrost degradation on foliar mineral element cycling upon changing subarctic tundra vegetation

    Mauclet, Elisabeth[UCL] Agnan, Yannick[UCL] Hirst, Catherine[UCL] Monhonval, Arthur[UCL] Justin Ledman Meghan Taylor Edward A. G. Schuur Opfergelt, Sophie[UCL] (2021) 7th International Geologica Belgica Meeting 2021 (15/09/21 au 17/09/2021) — Africa Museum (Tervuren, Belgium)
19. • Speech

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    Evolution of iron-organic carbon interactions during abrupt thaw in ice-rich permafrost: case study in Siberia

    Alexia Gilliot[UCL] Monhonval, Arthur[UCL] Louis, Justin[UCL] Benoît Pereira[UCL] Vandeuren, Aubry[UCL] Loeka Jongejans Jens Strauss Opfergelt, Sophie[UCL] (2021) 7th International Geologica Belgica Meeting 2021 (15/09/21 au 17/09/2021) — Africa Museum (Tervuren, Belgium)
20. • Speech

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    Influence of thermokarst formation on manganese-organic carbon interactions in ice-rich permafrost

    Louis, Justin[UCL] Monhonval, Arthur[UCL] Alexia Gilliot[UCL] Vandeuren, Aubry[UCL] Pereira, Benoît[UCL] Loeka Jongejans Jens Strauss Opfergelt, Sophie[UCL] (2021) 7th International Geologica Belgica Meeting 2021 (15/09/21 au 17/09/2021) — Africa Museum (Tervuren, Belgium)
21. • 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
22. • 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
23. • Speech

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    The evolving isotopic toolbox

    Opfergelt, Sophie[UCL] (2013) Gordon Research Conference - Catchment Science — Andover, NH, US
24. • 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
25. • 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

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