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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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    Influence of thawing permafrost on soil-plant mineral element transfer: Case study in Interior Alaska

    Mauclet, Elisabeth[UCL] Opfergelt, Sophie[UCL] Hirst, Catherine[UCL] Monhonval, Arthur[UCL] Debruxelles Laurentine[UCL] Ledman Justin Taylor Meghan Schuiur A.G. (2020) AGU FALL MEETING — ONLINE everywhere
12. • Speech

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    Characterization of dissolved and particulate organic matter exported during late summer from a glacio-nival river, Zackenberg, Greenland

    Fouche Julien Hirst, Catherine[UCL] Opfergelt, Sophie[UCL] Vonk Jorien Bonneville Steeve Haghipour Negar Eglinton Timothy Broder Lisa (2020) EGU General Assembly 2020 — Virtual
13. • 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
14. • 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
15. • 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
16. • Speech

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    Iron Dynamics during Thermokarst Processes in the Yedoma Domain and Implications for Interactions between Iron and Organic Carbon

    Monhonval, Arthur[UCL] Opfergelt, Sophie[UCL] Mauclet, Elisabeth[UCL] Hirst, Catherine[UCL] Pereira, Benoît[UCL] Vandeuren, Aubry[UCL] Bemelmans, Nathan[UCL] Grosse Guido Schirrmeister Lutz Fuchs Matthias (2020) AGU FALL MEETING — ONLINE everywhere
17. • 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
18. • 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
19. • Speech

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    Impact of abrupt permafrost thaw on mineral elements release: case study in Peel Plateau, west Canadian Arctic

    Thomas, Maxime[UCL] Opfergelt, Sophie[UCL] Monhonval, Arthur[UCL] Broeder Lisa Vonk Jorien Zolkos Scott Tank Suzanne Kokelj Steve (2020) AGU FALL MEETING — ONLINE everywhere
20. • Speech

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    Why do we need to care about the evolution of mineral-organic carbon interactions in permafrost upon thawing?

    Opfergelt, Sophie[UCL] Hirst, Catherine[UCL] Monhonval, Arthur[UCL] Mauclet, Elisabeth[UCL] Thomas, Maxime[UCL] (2020) AGU FALL MEETING — ONLINE everywhere
21. • Speech

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    Update synthesis: The fate of organic carbon upon thaw also depends on interactions with mineral elements

    Opfergelt, Sophie[UCL] (2020) 10th Annual Meeting of the Permafrost Carbon Network — Virtual
22. • 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
23. • Speech

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    Waters in hydrothermal and polar environments: further developments for Si isotope measurements

    Opfergelt, Sophie[UCL] Gaspard, François[UCL] Hirst, Catherine[UCL] (2020) Goldschmidt conference — Virtual
24. • Speech

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    B123-07 - Tracing particulate organo-mineral export by a large glacio-nival river and a small headwater stream in Zackenberg valley, Greenland

    Broeder Lisa Hirst, Catherine[UCL] Opfergelt, Sophie[UCL] Haghipour Negar Eglinton Timothy I Vonk Jorien Fouche Julien (2020) AGU FALL MEETING — ONLINE everywhere
25. • Speech

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    Mineral element and organic carbon transport from permafrost soils to a headwater stream under contrasting flow regimes and permafrost degradation

    Hirst, Catherine[UCL] Opfergelt, Sophie[UCL] Mauclet, Elisabeth[UCL] Monhonval, Arthur[UCL] Schuur A.G. (2020) AGU FALL MEETING — ONLINE everywhere

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