Opfergelt Sophie
ELIE Louvain-La-Neuve
Opfergelt Sophie
2024
Henrion, Maud ; Li, Yanfei ; Koganti, Triven ; Bechtold, Michel ; Jonard, François ; Opfergelt, Sophie ; Vanacker, Veerle ; Van Oost, Kristof ; Lambot, Sébastien. Mapping and monitoring peatlands in the Belgian Hautes Fagnes: Insights from Ground-penetrating radar and Electromagnetic induction characterization. In: Geoderma Regional, Vol. 37, p. e00795 (2024). doi:10.1016/j.geodrs.2024.e00795.
2023
Hirst, Catherine ; Monhonval, Arthur ; Mauclet, Elisabeth ; Thomas, Maxime ; Villani, Maëlle ; Ledman, Justin ; Schuur, Edward. A. G. ; Opfergelt, Sophie. Evidence for late winter biogeochemical connectivity in permafrost soils. In: Communications Earth & Environment, Vol. 4, no. 1 (2023) (2023). doi:10.1038/s43247-023-00740-6.
2023
Thomas, Maxime ; Monhonval, Arthur ; Hirst, Catherine ; Bröder, Lisa ; Zolkos, Scott ; Vonk, Jorien E. ; Tank, Suzanne E. ; Keskitalo, Kirsi H. ; Shakil, Sarah ; Kokelj, Steven V. ; van der Sluijs, Jurjen ; Opfergelt, Sophie. Evidence for preservation of organic carbon interacting with iron in material displaced from retrogressive thaw slumps: Case study in Peel Plateau, western Canadian Arctic. In: Geoderma, Vol. 433, no. 116443 (2023). doi:10.1016/j.geoderma.2023.116443.
2023
Monhonval, Arthur ; Mauclet Elisabeth ; Hirst, Catherine ; Bemelmans, Nathan ; Eekman, Elodie ; Schuur Edward ; Opfergelt, Sophie. Mineral organic carbon interactions in dry versus wet tundra soils. In: Geoderma, Vol. 436, no.116552, p. 116552 (2023). doi:10.1016/j.geoderma.2023.116552.
2023
Mauclet, Elisabeth ; Villani, Maëlle ; Monhonval, Arthur ; Hirst, Catherine ; Schuur, E.A.G ; Opfergelt, Sophie. Quantifying exchangeable base cations in permafrost: a reserve of nutrients about to thaw. In: Earth System Science Data, Vol. 15, no.9, p. 3891–3904 (2023). doi:10.5194/essd-15-3891-2023.
2023
Monhonval, Arthur ; Hirst, Catherine ; Jens Strauss ; Edward Schuur ; Opfergelt, Sophie. Strontium isotopes trace the dissolution and precipitation of mineral organic carbon interactions in thawing permafrost. In: Geoderma, Vol. 433, no.116456, p. 116456 (2023). doi:10.1016/j.geoderma.2023.116456.
2023
Zahajská, Petra ; Frings, Patrick J. ; Gaspard, François ; Opfergelt, Sophie ; Stadmark, Johanna ; Fritz, Sherilyn C. ; Cartier, Rosine ; Conley, Daniel J.. The Holocene silicon biogeochemistry of Yellowstone Lake, USA. In: Quaternary Science Reviews, Vol. 322, p. 108419 (2023). doi:10.1016/j.quascirev.2023.108419.
2023
Mauclet, Elisabeth ; Hirst, Catherine ; Monhonval, Arthur ; Stevenson, Emily ; Gérard, Merlin ; Villani, Maëlle ; Dailly, Hélène ; Schuur, Edward ; Opfergelt, Sophie. Tracing changes in base cation sources for Arctic tundra vegetation upon permafrost thaw. In: Geoderma, Vol. 429, no.429, p. 116277 (2022). doi:10.1016/j.geoderma.2022.116277.
2022
Mauclet, Elisabeth ; Agnan, Yannick ; Hirst, Catherine ; Monhonval, Arthur ; Pereira, Benoît ; Vandeuren, Aubry ; Villani, Maëlle ; Ledman, Justin ; Taylor, Meghan ; Jasinski, Briana L. ; Schuur, Edward A. G. ; Opfergelt, Sophie. Changing sub-Arctic tundra vegetation upon permafrost degradation: impact on foliar mineral element cycling. In: Biogeosciences, Vol. 19, no.9, p. 2333-2351 (2022). doi:10.5194/bg-19-2333-2022.
2022
Bröder, Lisa ; Hirst, Catherine ; Opfergelt, Sophie ; Thomas, Maxime ; Vonk, J. E. ; Haghipour, N. ; Eglinton, T. I. ; Fouché, J.. Contrasting Export of Particulate Organic Carbon From Greenlandic Glacial and Nonglacial Streams. In: Geophysical Research Letters, Vol. 49, no.21, p. 1 (2022). doi:10.1029/2022gl101210.
2022
Villani, Maëlle ; Mauclet, Elisabeth ; Agnan, Yannick ; Druel, Arsène ; Jasinski, Briana ; Taylor, Meghan ; Schuur, Edward A.G. ; Opfergelt, Sophie. Mineral element recycling in topsoil following permafrost degradation and a vegetation shift in sub-Arctic tundra. In: Geoderma, Vol. 421, p. 115915 (2022). doi:10.1016/j.geoderma.2022.115915.
2022
Hirst, Catherine ; Mauclet, Elisabeth ; Monhonval, Arthur ; Tihon Emeline ; Ledman Justin ; Schuur Edward A.G. ; Opfergelt, Sophie. Seasonal changes in hydrology and permafrost degradation control mineral element-bound DOC transport from permafrost soils to streams. In: Global Biogeochemical Cycles : an international journal of global change, Vol. 36, no. 2 (2022), p. 1-24 (2022). doi:10.1029/2021GB007105.
2022
Monhonval, Arthur ; Strauss, Jens ; Thomas, Maxime ; Hirst, Catherine ; Titeux, Hugues ; Louis, Justin ; Gilliot, Alexia ; du Bois d'Aische, Eléonore ; Pereira, Benoît ; Vandeuren, Aubry ; Grosse, Guido ; Schirrmeister, Lutz ; Jongejans, Loeka L. ; Ulrich, Mathias ; Opfergelt, Sophie. Thermokarst processes increase the supply of stabilizing surfaces and elements (Fe, Mn, Al, and Ca) for mineral–organic carbon interactions. In: Permafrost and Periglacial Processes, (2022). doi:10.1002/ppp.2162.
2021
Murphy, Melissa J. ; Hendry, Katharine ; Opfergelt, Sophie. Editorial: Novel Isotope Systems and Biogeochemical Cycling During Cryospheric Weathering in Polar Environments. In: Frontiers in Earth Science, Vol. 9 (2021). doi:10.3389/feart.2021.660333.
2021
Delmelle, Pierre ; Maters, Elena C. ; Calkins, Julie A. ; Gaspard, François ; Opfergelt, Sophie ; Jenkins, Susanna F.. Eruptive style controls the formation of silicon hexafluoride salts on volcanic ash: The case of the 2010 eruption of Eyjafjallajökull volcano, Iceland.. In: Chemical Geology, Vol. 579 (2021). doi:10.1016/j.chemgeo.2021.120327.
2021
Brosens, Liesa ; Robinet, Jérémy ; Pelckmans, Ignace ; Ameijeiras-Mariño, Yolanda ; Govers, Gerard ; Opfergelt, Sophie ; Minella, Jean P.G. ; Vanderborght, Jan. Have land use and land cover change affected soil thickness and weathering degree in a subtropical region in Southern Brazil? Insights from applied mid-infrared spectroscopy. In: CATENA, Vol. 207, p. 105698 (2021). doi:10.1016/j.catena.2021.105698.
2021
Zahajská, Petra ; Cartier, Rosine ; Fritz, Sherilyn C ; Stadmark, Johanna ; Opfergelt, Sophie ; Yam, Ruth ; Shemesh, Aldo ; Conley, Daniel J. Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden. In: The Holocene, Vol. 1, no.11, p. 095968362110259 (2021). doi:10.1177/09596836211025973.
2021
Gaspard, François ; Opfergelt, Sophie ; Dessert, Céline ; Robert, Vincent ; Ameijeiras Mariño, Yolanda ; Delmelle, Pierre. Imprint of chemical weathering and hydrothermalism on the Ge/Si ratio and Si isotope composition of rivers in a volcanic tropical island, Basse-Terre, Guadeloupe (French West Indies). In: Chemical Geology. Isotope Geoscience Section, Vol. 577, no.120283 (2021). doi:10.1016/j.chemgeo.2021.120283.
2021
Monhonval, Arthur ; Strauss, Jens ; Mauclet, Elisabeth ; Hirst, Catherine ; Bemelmans, Nathan ; Grosse, Guido ; Schirrmeister, Lutz ; Fuchs, Matthias ; Opfergelt, Sophie. Iron Redistribution Upon Thermokarst Processes in the Yedoma Domain. In: Frontiers in Earth Science, Vol. 9 (2021). doi:10.3389/feart.2021.703339.
2021
Monhonval, Arthur ; Mauclet, Elisabeth ; Pereira, Benoît ; Vandeuren, Aubry ; Strauss, Jens ; Grosse, Guido ; Schirrmeister, Lutz ; Fuchs, Matthias ; Kuhry, Peter ; Opfergelt, Sophie. Mineral Element Stocks in the Yedoma Domain: A Novel Method Applied to Ice-Rich Permafrost Regions. In: Frontiers in Earth Science, Vol. 9, no.1, p. 773 (2021). doi:10.3389/feart.2021.703304.
2021
Zahajská, Petra ; Olid, Carolina ; Stadmark, Johanna ; Fritz, Sherilyn C. ; Opfergelt, Sophie ; Conley, Daniel J. . Modern silicon dynamics of a small high-latitude subarctic lake. In: Biogeosciences, Vol. 18, no.7 (2021). doi:10.5194/bg-18-2325-2021.
2021
Gaspard, François ; Opfergelt, Sophie ; Hirst, Catherine ; Hurwitz, Shaul ; McCleskey, R. Blaine ; Zahajská, Petra ; Conley, Daniel J. ; Delmelle, Pierre. Quantifying non‐thermal silicate weathering using Ge/Si and Si isotopes in rivers draining the Yellowstone Plateau Volcanic Field, USA. In: Geochemistry, Geophysics, Geosystems, (2021). doi:10.1029/2021gc009904.
2021
Shmelev, Denis ; Cherbunina, Maria ; Rogov, Victor ; Opfergelt, Sophie ; Monhonval, Arthur ; Strauss, Jens. Reconstructing Permafrost Sedimentological Characteristics and Post-depositional Processes of the Yedoma Stratotype Duvanny Yar, Siberia. In: Frontiers in Earth Science, Vol. 9 (2021). doi:10.3389/feart.2021.727315.
2021
Pogge von Strandmann, Philip A.E. ; Burton, Kevin W. ; Opfergelt, Sophie ; Genson, Bianca ; Guicharnaud, Rannveig A. ; Gislason, Sigurður R.. The lithium isotope response to the variable weathering of soils in Iceland. In: Geochimica et Cosmochimica Acta, Vol. 313, p. 55-73 (2021). doi:10.1016/j.gca.2021.08.020.
2021
Opfergelt, Sophie. The unaccounted-for side of permafrost carbon - ebook. In: Open Access Government, Vol. 29, no.3, p. 1-10 (2021).
2021
Mauclet, Elisabeth ; Agnan, Yannick ; Hirst, Catherine ; Monhonval, Arthur ; Taylor, Meghan ; Ledman, Justin ; Schuur, Edouard ; Opfergelt, Sophie. What are the impacts of shifting Arctic tundra vegetation?. In: Open Access Government, Vol. European Union, no. April 2021, p. 232 (2021).
2020
Baronas, J. Jotautas ; West, A. Joshua ; Burton, Kevin W. ; Hammond, Douglas E. ; Opfergelt, Sophie ; Pogge von Strandmann, Philip A. E. ; James, Rachael H. ; Rouxel, Olivier J.. Ge and Si Isotope Behavior During Intense Tropical Weathering and Ecosystem Cycling. In: Global Biogeochemical Cycles, Vol. 34, no. 8 (2020), p. e2019GB006522 (1-25) (2020). doi:10.1029/2019gb006522.
2020
Pogge von Strandmann, Philip A. E. ; Burton, Kevin W. ; Opfergelt, Sophie ; Eiríksdóttir, Eydís S. ; Murphy, Melissa J. ; Einarsson, Arni ; Gislason, Sigurdur R.. Hydrothermal and Cold Spring Water and Primary Productivity Effects on Magnesium Isotopes: Lake Myvatn, Iceland. In: Frontiers in Earth Science, Vol. 8, p. article 109 (2020). doi:10.3389/feart.2020.00109.
2020
Hirst, Catherine ; Opfergelt, Sophie ; Gaspard, François ; Hendry, Katharine R. ; Hatton, Jade E. ; Welch, Susan ; McKnight, Diane M. ; Berry Lyons, W.. Silicon Isotopes Reveal a Non-glacial Source of Silicon to Crescent Stream, McMurdo Dry Valleys, Antarctica. In: Frontiers in Earth Science, Vol. 8 (2020), p. article 229 (2020). doi:10.3389/feart.2020.00229.
2020
Hatton, Jade E. ; Hendry, Katharine R. ; Hirst, Catherine ; Opfergelt, Sophie ; Henkel, Susann ; Silva-Busso, Adrián ; Welch, Susan A. ; Wadham, Jemma L. ; Lyons, W. Berry ; Bagshaw, Elizabeth ; Staubwasser, Michael ; McKnight, Diane M.. Silicon Isotopic Composition of Dry and Wet-Based Glaciers in Antarctica. In: Frontiers in Earth Science, Vol. 8, p. 286 (2020). doi:10.3389/feart.2020.00286.
2020
Brosens, Liesa ; Campforts, Benjamin ; Robinet, Jérémy ; Vanacker, Veerle ; Opfergelt, Sophie ; Ameijeiras‐Mariño, Yolanda ; Minella, Jean P. G. ; Govers, Gerard. Slope Gradient Controls Soil Thickness and Chemical Weathering in Subtropical Brazil: Understanding Rates and Timescales of Regional Soilscape Evolution Through a Combination of Field Data and Modeling. In: Journal of Geophysical Research: Earth Surface, no. 6 (2020), p. 1-26 (2020). doi:10.1029/2019jf005321.
2020
Bouchard, Frédéric ; Agnan, Yannick ; Bröder, Lisa ; Fouché, Julien ; Hirst, Catherine ; Sjöberg, Ylva ; Alexis M ; Behmel S ; Biskaborn B ; Christaki U ; Dean J ; Desyatkin A ; Farquharson L ; Fishback L ; Fortier D ; Fritz M ; Gandois G ; Hugelius L ; Jardillier L ; Jones B ; Kanevskiy M ; Lantuit H ; Laurion I ; Lebedeva L ; Opfergelt, Sophie ; Palmtag J ; Roy-Léveilléee P ; Rudy A ; Séjourné A ; Siewert M.B ; Tank S ; Tanski G ; Teisserenc R ; Vonk J.E. ; Zolkos S. The SPLASH Action Group - Towards standardized sampling strategies in permafrost science. In: Advances in Polar Science, Vol. 31, no. 3, p. 153-155 (2020). doi:10.13679/j.advps.20 20.0009.
2020
Opfergelt, Sophie. The next generation of climate model should account for the evolution of mineral-organic interactions with permafrost thaw. In: Environmental Research Letters, Vol. 15, no. 9, p. 091003 (2020). doi:10.1088/1748-9326/ab9a6d.
2020
Opfergelt, Sophie. The unaccounted-for side of permafrost carbon - profile. In: Open Access Government, Vol. 3, no.1, p. 240 (2020).
2020
Zahajská, Petra ; Opfergelt, Sophie ; Fritz, Sherilyn C. ; Stadmark, Johanna ; Conley, Daniel J.. What is diatomite?. In: Quaternary Research, Vol. 96, p. 48-52 (2020). doi:10.1017/qua.2020.14.
2019
Vanacker, Veerle ; Ameijeiras Mariño, Yolanda ; Schoonejans, Jerome ; Cornelis, Jean-Thomas ; Minella, Jean ; Lamouline, Florence ; Vermeire, Marie-Liesse ; Campforts, Benjamin ; Robinet, Jeremy ; Van de Broek, Marijn ; Delmelle, Pierre ; Opfergelt, Sophie. Land use impacts on soil erosion and rejuvenation in Southern Brazil. In: CATENA, Vol. 178, p. 256-266 (2019). doi:10.1016/j.catena.2019.03.024.
2019
Cornelis, J.-T. ; Weis, D. ; Opfergelt, Sophie ; Van Ranst, E. ; Dumon, M.. Past and current geochemical conditions influence silicon isotope signatures of pedogenic clay minerals at the soil profile scale, Ethiopia. In: Chemical Geology, Vol. 524, no.5, p. 174-183 (2019). doi:10.1016/j.chemgeo.2019.06.013.
2019
Hatton, Jade E. ; Hendry, Katharine R. ; Hawkings, Jonathan R. ; Wadham, Jemma L. ; Opfergelt, Sophie ; Kohler, Tyler J. ; Yde, Jacob C. ; Stibal, Marek ; Žárský, Jakub D.. Silicon isotopes in Arctic and sub-Arctic glacial meltwaters: the role of subglacial weathering in the silicon cycle. In: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 475, no.2228, p. 20190098 (2019). doi:10.1098/rspa.2019.0098.
2018
Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Derry Louis A. ; Robinet Jérémy ; Govers Gerard ; Minella Jean P.G. ; Delmelle, Pierre. Ge/Si ratios point to increased contribution from deeper mineral weathering to streams after forest conversion to cropland. In: Applied Geochemistry, Vol. 96, p. 24-34 (2018).
2018
Robinet, Jérémy ; Minella, Jean P. G. ; de Barros, Cláudia A. P. ; Schlesner, Alexandre ; Lücke, Andreas ; Ameijeiras Mariño, Yolanda ; Opfergelt, Sophie ; Vanderborght, Jan ; Govers, Gerard. Impacts of forest conversion and agriculture practices on water pathways in Southern Brazil. In: Hydrological Processes, Vol. 32, no.15, p. 2304-2317 (2018). doi:10.1002/hyp.13155.
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.
2022
Doetterl Sebastian ; Rose Abramoff ; Jean-Thomas Cornelis ; Aline Frossard ; Peter Fiener ; Gina Garland ; Michael Kaiser ; Moritz Laub ; Opfergelt, Sophie ; Marijn Van de Broek ; Sarah van den Broek ; Sophie F. von Fromm. Understanding soil organic carbon dynamics at larger scales. In: Rumpel C., Understanding and fostering soil carbon sequestration, Burleigh Dodds Science Publishing Limited: Cambridge, 2022. ID: 9781801467025. doi:10.19103/AS.2022.0106.05.
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.
2024
Roux, Philippe ; du Bois d'Aische, Eléonore ; Villani, Maëlle ; Opfergelt, Sophie. Arctique : Quand le sol dégèle sous nos pieds. Printemps des sciences (Louvain-la-Neuve, 21/03/2024).
2024
Thomas, Maxime ; Moenaert, Thomas ; du Bois d'Aische, Eléonore ; Villani, Maëlle ; Hirst, Catherine ; Lundin, Erik ; Jonard, François ; Lambot, Sébastien ; Van Oost, Kristof ; Vanacker, Veerle ; Giesler, Reiner ; Mörth, Carl-Magnus ; Opfergelt, Sophie. Detecting lowland thermokarst development by UAV remote sensing in the Stordalen mire, Abisko, Sweden. General Assembly 2024 of the European Geosciences Union (EGU) (Vienna, Austria, du 14/04/2024 au 19/04/2024).
2024
Thomas, Maxime ; Moenaert, Thomas ; du Bois d'Aische, Eléonore ; Villani, Maëlle ; Hirst, Catherine ; Lundin, Erik ; Jonard, François ; Lambot, Sébastien ; Van Oost, Kristof ; Vanacker, Veerle ; Giesler, Reiner ; Mörth, Carl-Magnus ; Opfergelt, Sophie. Detecting lowland thermokarst development by UAV remote sensing in the Stordalen mire, Abisko, Sweden. 2024 Belgian Polar Community Day (APECS event) (VLIZ, Oostende, 30/04/2024).
2024
Villani, Maëlle ; Hirst, Catherine ; Thomas, Maxime ; du Bois d'Aische, Eléonore ; Vanderelst, Sarah ; Lundin, Erik ; Giesler, Reiner ; Mörth, Magnus ; Opfergelt, Sophie. Flow-path changes in permafrost soils affect Fe-organic carbon interactions: evidence from silicon isotopes. 2024 Belgian Polar Community Day (VLIZ, Jacobsenstraat 1, 8400 Oostende, Belgium, 30/04/2024).
2024
Thomas, Maxime ; Fouché, Julien ; Morelle, Charlotte ; Bemelmans, Nathan ; Rochereau, Thomas ; Lafrenière, Melissa ; Heslop, Joanne K. ; Opfergelt, Sophie. Impact of hillslope thermokarst development on mineral-OC interactions: case study in Cape Bounty, Canadian High Arctic . Geologica Belgica Luxemburga International Meeting 2024 (Liège, Belgium, du 11/09/2024 au 13/09/2024).
2024
du Bois d'Aische, Eléonore ; Jonard, François ; Lambot, Sébastien ; Van Oost, Kristof ; Vanacker, Veerle ; Villani, Maëlle ; Thomas, Maxime ; Hirst, Catherine ; Opfergelt, Sophie. Investigating the role of changing Permafrost Hydrology on carbon and nutrient fluxes using very-high resolution remote Sensing and geochemical techniques. Belgian Science for Climate Action (Brussels, du 19/02/2024 au 20/02/2024).
2024
Roux, Philippe ; Villani, Maëlle ; Opfergelt, Sophie. Nutrient mobility upon permafrost thaw: sources and controlling processes. Belgian Science for Climate Action conference (Maison de la Poste, Bruxelles, du 19/02/2024 au 20/02/2024).
2024
Opfergelt, Sophie ; Villani, Maëlle ; Thomas, Maxime ; du Bois d'Aische, Eléonore ; Osy de Zegwaart-Favart, Cécile ; Roux, Philippe ; Henrion, Maud ; Jonard, François ; Bates, Jordan ; Hirst, Catherine ; Denis, Gilles. Permafrost Expedition in Alsaka: Autumn 2023 and Winter 2024. Archives Antarctiques Belges-Belgishe Antarktic Archieven (Bruxelles, 21/03/2024).
2024
Villani, Maëlle ; Hirst, Catherine ; du Bois d'Aische, Eléonore ; Thomas, Maxime ; Lundin, Erik ; Giesler, Reiner ; Mörth, Magnus ; Opfergelt, Sophie. Silicon isotopes as a tool to capture winter biogeochemical processes in permafrost soils. Isotopes in Biogenic Silica (IBiS) 2024 (Louvain)la-Neuve, du 29/05/2024 au 31/05/2024).
2024
Opfergelt, Sophie ; Roux, Philippe ; du Bois d'Aische, Eléonore ; Villani, Maëlle ; Thomas, Maxime ; Osy de Zegwaart-Favart, Cécile. To what extent do iron organic carbon interactions attenuate C release from permafrost thaw?. 2024 Belgian Polar Community Day (APECS event) (VLIZ, Oostende, 30/04/2024).
2024
Opfergelt, Sophie ; Roux, Philippe ; du Bois d'Aische, Eléonore ; Villani, Maëlle ; Thomas, Maxime ; Osy de Zegwaart-Favart, Cécile. To what extent do iron organic carbon interactions attenuate C release from permafrost thaw?. EGU 2024 (Vienne, Autriche, du 14/04/2024 au 19/04/2024).
2024
Roux, Philippe ; Lemarchand, Damien ; Schuur, Edward ; Opfergelt, Sophie. Using radiogenic Sr isotopes to trace nutrient uplift from permafrost thaw: a field-based soil warming experiment.. EGU 2024 (Vienne, Autriche, du 14/04/2024 au 19/04/2024).
2023
du Bois d'Aische, Eléonore ; Thomas, Maxime ; Jonard, François ; Villani, Maëlle ; Hirst, Catherine ; Giesler, Reiner ; Mörth, Carl-Magnus ; Opfergelt, Sophie. Combining geochemical and geophysical parameters to characterize permafrost degradation at Abisko, Sweden: implications for iron-organic carbon interactions. Arctic Science Summit Week (Vienne, du 21/02/2023 au 24/02/2023).
2023
Thomas, Maxime ; du Bois d'Aische, Eléonore ; Moenaert, Thomas ; Villani, Maëlle ; Hirst, Catherine ; Lundin, Erik ; Jonard, François ; Lambot, Sébastien ; Van Oost, Kristof ; Vanacker, Veerle ; Giesler, Reiner ; Mörth, Carl-Magnus ; Opfergelt, Sophie. Combining geophysical data, microtopography, and very-high resolution UAV imagery to map lowland permafrost degradation in the Stordalen mire, Abisko, Sweden.. 6th European Conference on Permafrost (Puigcerdà, Catalonia, Spain, du 18/06/2023 au 22/06/2023).
2023
Opfergelt, Sophie ; Gaspard, François ; Hirst, Catherine ; Monin, Laurence ; Juhls, Bennet ; Morgenstern, Anne ; Overduin, Paul . Evidence from silicon isotopes for pulses of sub-ice microbial activity during winter in the Lena River. Goldschmidt 2023 (Lyon, France, du 09/07/2023 au 14/07/2023).
2023
Thomas, Maxime ; Jongejans, Loeka L. ; Strauss, Jens ; Vermylen, Chloé ; Calcus, Sacha ; Opel, Thomas ; Opfergelt, Sophie. Evolution of Fe oxides crystallinity in permafrost deposits from mid-Pleistocene to Holocene: implications for mineral organic carbon interactions. Goldschmidt 2023 (Lyon, France, du 09/07/2023 au 14/07/2023).
2023
Villani, Maëlle ; Hirst, Catherine ; Thomas, Maxime ; Eléonore du Bois d'Aische ; Vanderelst, Sarah ; Erik Lundin ; Reiner Giesler ; Magnus Mörth ; Opfergelt, Sophie. Flow-path changes in permafrost soils affect Fe-organic carbon interactions: evidence from silicon isotopes. 6th European Conference on Permafrost (EUCOP 2023) ( Puigcerdà (Catalonia, Spain), du 17/06/2023 au 22/06/2023).
2023
Villani, Maëlle ; Hirst, Catherine ; du Bois d'Aische, Eléonore ; Thomas, Maxime ; Erik Lundin ; Reiner Giesler ; Magnus Mörth ; Opfergelt, Sophie. Identification of winter biogeochemical connectivity in permafrost soils using silicon isotopes and impact on Fe-organic carbon interactions (Stordalen, Sweden). Coffee meeting (Potsdam, Germany, 07/03/2023).
2023
Osy de Zegwaart-Favart, Cécile ; Massonnet, François ; Opfergelt, Sophie. Influence of rapid sea ice loss events on permafrost. 6th European Conference on Permafrost (Puigcerdà, du 18/06/2023 au 22/06/2023).
2023
du Bois d'Aische, Eléonore ; Thomas, Maxime ; Villani, Maëlle ; Jonard, François ; Hirst, Catherine ; Giesler, Reiner ; Mörth, Carl-Magnus ; Lundin, Erik ; Opfergelt, Sophie. Iron, manganese and aluminum solubility with permafrost thaw in an Arctic peatland: coupled geochemical and geophysical measurements. 6th European Conference on Permafrost (Puigcerdà, du 18/06/2023 au 22/06/2023).
2023
Thomas, Maxime ; Jongejans, Loeka L. ; Strauss, Jens ; Vermylen, Chloé ; Calcus, Sacha ; Monhonval, Arthur ; Opel, Thomas ; Grosse, Guido ; Opfergelt, Sophie. More than one third of the organic carbon exposed by the world’s largest thaw slump (Batagay, Siberia) is not directly available for mineralization but geochemically stabilized. 6th European Conference on Permafrost (Puigcerdà, Catalonia, Spain, du 18/06/2023 au 22/06/2023).
2023
Denis, Gilles ; Goffart, Nathan ; Opfergelt, Sophie ; Bertrand, Bruno ; Mattielli, Nadine ; Fettweis, Xavier ; Ahlstrom, Andreas P ; Defraigne, Pascale ; Bonneville, Steeve ; Boxho, Sibylle L. ; Box, Jason E ; Karlsson, Nanna B ; Bergeot, Nicolas. Nanok Expedition: an ice triathlon in Greenland partnering with scientists for climate research. Goldschmidt 2023 (Lyon, France, du 09/07/2023 au 14/07/2023).
2023
Roux, Philippe ; Opfergelt, Sophie. Nutrient lift upon permafrost thaw: sources and controlling processes. International Arctic Science Committee - Terrestrial Working Group Fall Science Meeting (online, 27/11/2023).
2023
Opfergelt, Sophie ; Gaspard, François ; Hirst, Catherine ; Monin, Laurence ; Juhls, Bennet ; Morgenstern, Anne ; Overduin, Paul. Pulses of sub-ice microbial activity during winter: evidence from nitrate concentrations and silicon isotopes in the Lena River. 6th European Conference on Permafrost (Puigcerdà, Catalonia, Spain, du 18/06/2023 au 22/06/2023).
2023
Opfergelt, Sophie. The Changing Arctic Critical Zone. Circle U Thematic seminar: Climate & Water (Berlin, du 06/06/2023 au 07/06/2023).
2023
Opfergelt, Sophie. Tracing changes in mineral-organic carbon interactions upon permafrost thaw. BrIAS Workshop 13 “Carbon and Climate Change – from the atmosphere to the bottom of the ocean” (Brussels, 11/04/2023).
2023
Opfergelt, Sophie. Tracking changes in iron organic carbon interactions upon permafrost thaw. Invited talk at Bristol University (Online, 19/04/2023).
2023
Opfergelt, Sophie ; Monhonval, Arthur ; Thomas, Maxime. Tracking changes in iron organic carbon interactions upon permafrost thaw. Arctic Science Summit Week (Vienne, du 21/02/2023 au 24/02/2023).
2023
Roux, Philippe ; Opfergelt, Sophie ; du Bois d'Aische, Eléonore ; Thomas, Maxime ; Osy de Zegwaart-Favart, Cécile ; Villani, Maëlle. Understanding the Arctic Critical Zone - Permafrost thaw consequences on ecosystem functionning and C fluxes. Visit of a delegation of the Chinese Geologic Survey (Royal Academy for Overseas Sciences, Bruxelles, 30/11/2023).
2023
Henrion, Maud ; Li, Yanfei ; Thami, Adil ; du Bois d'Aische, Eléonore ; Jonard, François ; Lambot, Sébastien ; Opfergelt, Sophie ; Vanacker, Veerle ; Van Oost, Kristof. What are the hydrological controls on soil processes controlling carbon- and nutrient-efflux in the Critical Zone at the landscape scale?. Day of the Young Soil Scientist 2023 (Bruxelles, 24/03/2023).
2022
Villani, Maëlle ; Mauclet, Elisabeth ; Gérard, Merlin ; Hirst, Catherine ; Monhonval, Arthur ; Stevenson, Emily ; Schuur, Edward ; Opfergelt, Sophie. Changes in Nutrient Sources for Arctic Tundra Vegetation upon Permafrost Thaw. AGU Fall Meeting 2022 (Chicago, USA, du 12/12/2022 au 16/12/2022).
2022
Thomas, Maxime ; Jongejans, Loeka L. ; Strauss, Jens ; Vermylen, Chloe ; Calcus, Sacha ; Monhonval, Arthur ; Opel, Thomas ; Opfergelt, Sophie. Characterization of organic carbon-mineral interactions within a megaslump headwall and potential evolution following material export: case study in Batagaika crater, northern Yakutia, Siberia. 7ème édition du colloque Climat et Impacts (Université de Paris-Saclay, Paris, France, du 23/11/2022 au 25/11/2022).
2022
Thomas, Maxime ; du Bois d'Aische, Eléonore ; Villani, Maëlle ; Jonard, François ; Lambot, Sébastien ; Van Oost, Kristof ; Vanacker, Veerle ; Giesler, Reiner ; Mörth, Carl-Magnus ; Opfergelt, Sophie. Coupling geophysical data, microtopography and high-resolution imagery to map a permafrost degradation gradient at the Stordalen mire, Abisko, Sweden: implications for iron-organic carbon interactions. Study day on Belgian contributions to Earth Sciences in a Changing World (Palace of the Academies of the Royal Academy of Science, Letters, and Fine Arts of Belgium, Brussels, 04/11/2022).
2022
du Bois d'Aische, Eléonore ; Thomas, Maxime ; Jonard, François ; Villani, Maëlle ; Hirst, Catherine ; Giesler, Reiner ; Mörth, Carl-Magnus ; Lundin, Erik ; Opfergelt, Sophie. Coupling of geochemical and geophysical measurements to characterize iron and organic carbon co-mobility upon permafrost thaw in an Arctic peatland in Abisko, Sweden.. 7ème colloque climat et impacts (Paris-Saclay, du 23/11/2022 au 25/11/2022).
2022
Opfergelt, Sophie ; Hirst, Catherine ; Villani, Maëlle ; Monhonval, Arthur ; Mauclet, Elisabeth ; Thomas, Maxime ; Ledman, Justin ; Schuur, Edward. Detecting Hydrological Connectivity in Polar Environments Using Silicon Isotopes. AGU Fall Meeting 2022 (Chicago, USA, du 12/12/2022 au 16/12/2022).
2022
Villani, Maëlle ; Mauclet, Elisabeth ; Agnan, Yannick ; Druel, Arsène ; Jasinski, Briana ; Taylor, Meghan ; Schuur, Edward A.G ; Opfergelt, Sophie. Does vegetation shift in Arctic tundra upon permafrost degradation influence mineral element recycling in the topsoil?. EGU General Assembly 2022 (Vienna, Austria, du 23/05/2022 au 27/05/2022). doi:10.5194/egusphere-egu22-4024.
2022
Osy de Zegwaart-Favart, Cécile ; Massonnet, François ; Opfergelt, Sophie. Drivers of changes in the permafrost late shoulder season. The Cryosphere in a changing climate - A scientific symposium in memory of Koni Steffen (Davos, Switzerland, du 24/06/2022 au 25/06/2022).
2022
Osy de Zegwaart-Favart, Cécile ; Massonnet, François ; Opfergelt, Sophie. Drivers of changes in the permafrost late shoulder season. ELI-Day (Louvain-la-Neuve, Belgium, 19/05/2022).
2022
Osy de Zegwaart-Favart, Cécile ; Massonnet, François ; Opfergelt, Sophie. Drivers of changes in the permafrost late shoulder season. EGU General Assembly 2022 (Vienna, Austria, du 23/05/2022 au 27/05/2022).
2022
Osy de Zegwaart-Favart, Cécile ; Massonnet, François ; Opfergelt, Sophie. Drivers of changes in the permafrost late shoulder season. 17th Conference on Polar Meteorology and Oceanography (Madison (WI), United States, du 08/08/2022 au 12/08/2022).
2022
Osy de Zegwaart-Favart, Cécile ; Massonnet, François ; Opfergelt, Sophie. Drivers of changes in the permafrost late shoulder season. The Cryosphere in a changing climate - A scientific symposium in memory of Koni Steffen (Davos, Switzerland, du 23/06/2022 au 24/06/2022).
2022
Villani, Maëlle ; Hirst, Catherine ; Thomas, Maxime ; Lundin, Erik ; Giesler, Reiner ; Mörth, Magnus ; Opfergelt, Sophie. Identification of winter biogeochemical connectivity in permafrost soils with silicon isotopes and redox-sensitive elements (Stordalen, Sweden). 7ème colloque climat et impacts (Paris, France, du 23/11/2022 au 25/12/2022).
2022
Opfergelt, Sophie ; Monhonval, Arthur ; Dailly, Hélène ; Schuur, Edward ; Hirst, Catherine. Role of Dissolution-Precipitation of Mineral Organic Carbon Interactions on Carbon Loss and Gain upon Permafrost Thaw. AGU Fall Meeting 2022 (Chicago, USA, du 12/12/2022 au 16/12/2022).
2022
Villani, Maëlle ; Hirst, Catherine ; Lundin, Erik ; Giesler, Reiner ; Mörth, Magnus ; Opfergelt, Sophie. Silicon Isotopes: A Tool to Capture Winter Biogeochemical Connectivity in Permafrost Soils (Stordalen, Sweden). AGU Fall Meeting 2022 (Chicago, USA, du 12/12/2022 au 16/12/2022).
2022
Hirst, Catherine ; Villani, Maëlle ; Thomas, Maxime ; Monhonval, Arthur ; du Bois d'Aische, Eléonore ; Lundin, Erik ; Giesler, Reiner ; Mörth, Magnus ; Opfergelt, Sophie. Water residence time controls iron-organic carbon interactions in waters draining a sub-Arctic fen. AGU Fall Meeting 2022 (Chicago, USA, du 12/12/2022 au 16/12/2022).
2021
Hirst, Catherine ; Opfergelt, Sophie. Can we use Arctic rivers to detect permafrost thaw?. ELI DAY 2021 (LLN - ONLINE ZOOM, du 26/05/2021 au 28/05/2021).
2021
Opfergelt, Sophie ; Hirst, Catherine ; Mauclet, Elisabeth ; Monhonval, Arthur ; Thomas, Maxime ; Gaspard, François ; Villani, Maëlle ; Dailly, Hélène. Changing conditions for mineral-organic carbon interactions across the permafrost landscape: hot moments more than hot spots?. AGU Fall Meeting 2021 (Virtual, du 13/12/2021 au 17/12/2021) (Soumis).
2021
Alexia Gilliot ; Monhonval, Arthur ; Louis, Justin ; Benoît Pereira ; Vandeuren, Aubry ; Loeka Jongejans ; Jens Strauss ; Opfergelt, Sophie. Evolution of iron-organic carbon interactions during abrupt thaw in ice-rich permafrost: case study in Siberia. 7th International Geologica Belgica Meeting 2021 (15/09/21 au 17/09/2021) (Africa Museum (Tervuren, Belgium), du 15/09/2021 au 17/09/2021).
2021
Guzman Thomas ; Burlett Regis ; Delvigne, Camille ; Parise Camille ; Dubois Sabrina ; Martin-Gomez Paula ; Opfergelt, Sophie ; Wingate Lisa. Impact of transpiration rates on foliar silicon concentrations across a range of angiosperm species exposed to water stress. EGU General Assembly 2021 (Virtual, du 19/04/2021 au 30/04/2021).
2021
Villani, Maëlle ; Mauclet, Elisabeth ; Agnan, Yannick ; Edward A. G. Schuur ; Opfergelt, Sophie. Influence of permafrost degradation and shift in vegetation on litter and soil properties: case study in Central Alaska. Conférence : 7th International Geologica Belgica Meeting 2021 (15/09/21 au 17/09/2021) (Africa Museum (Tervuren, Belgium), du 15/09/2021 au 17/09/2021) (Soumis).
2021
Mauclet, Elisabeth ; Agnan, Yannick ; Hirst, Catherine ; Monhonval, Arthur ; Justin Ledman ; Meghan Taylor ; Edward A. G. Schuur ; Opfergelt, Sophie. Influence of permafrost degradation on foliar mineral element cycling upon changing subarctic tundra vegetation . 7th International Geologica Belgica Meeting 2021 (15/09/21 au 17/09/2021) (Africa Museum (Tervuren, Belgium), du 15/09/2021 au 17/09/2021).
2021
Louis, Justin ; Monhonval, Arthur ; Alexia Gilliot ; Vandeuren, Aubry ; Pereira, Benoît ; Loeka Jongejans ; Jens Strauss ; Opfergelt, Sophie. Influence of thermokarst formation on manganese-organic carbon interactions in ice-rich permafrost . 7th International Geologica Belgica Meeting 2021 (15/09/21 au 17/09/2021) (Africa Museum (Tervuren, Belgium), du 15/09/2021 au 17/09/2021).
2021
Monhonval, Arthur ; Opfergelt, Sophie ; Mauclet, Elisabeth ; Hirst, Catherine ; Bemelmans, Nathan ; Vandeuren, Aubry ; Pereira, Benoît. Iron dynamics upon thermokarst formation in the Yedoma domain. ELI Day 2021 (Virtual, du 25/05/21 au 27/05/21).
2021
Mauclet, Elisabeth ; Hirst, Catherine ; Monhonval, Arthur ; Debruxelles, Laurentine ; Ledman, Justin ; Taylor, Meghan ; Schuur, Edward A.G. ; Opfergelt, Sophie. Mineral element cycling through the soil-plant system upon permafrost thaw: case study in Interior Alaska . ELI DAY (LLN - ONLINE ZOOM, du 26/05/2021 au 28/05/2021).
2021
Broder Lisa ; Hirst, Catherine ; Opfergelt, Sophie ; Lattaud Julie ; Haghipour N. ; Eglinton Tim ; Vonk Jorien ; Fouché Julien. Mobilization of particulate organic matter and minerals in Zackenberg valley, Greenland. EGU General Assembly 2021 (Virtual, du 19/04/2021 au 30/04/2021). doi:10.5194/egusphere-egu21-11539.
2021
Opfergelt, Sophie. Update synthesis: Permafrost thaw influences conditions for mineral-organic carbon interactions. 11th Annual Meeting of the Permafrost Carbon Network.
2021
Gaspard, François ; Hirst, Catherine ; Opfergelt, Sophie. Waters in hydrothermal and polar environments: further developments for silicon isotope measurements. ELI Day 2021 (Virtual, du 25/05/21 au 27/05/21).
2020
Broeder Lisa ; Hirst, Catherine ; Opfergelt, Sophie ; Haghipour Negar ; Eglinton Timothy I ; Vonk Jorien ; Fouche Julien . B123-07 - Tracing particulate organo-mineral export by a large glacio-nival river and a small headwater stream in Zackenberg valley, Greenland. AGU FALL MEETING (ONLINE everywhere, du 01/12/2020 au 17/12/2020).
2020
Fouche Julien ; Hirst, Catherine ; Opfergelt, Sophie ; Vonk Jorien ; Bonneville Steeve ; Haghipour Negar ; Eglinton Timothy ; Broder Lisa. Characterization of dissolved and particulate organic matter exported during late summer from a glacio-nival river, Zackenberg, Greenland. EGU General Assembly 2020 (Virtual, du 04/05/2020 au 08/05/2020).
2020
Brosens Liesa ; Campforts Benjamin ; Robinet jérémy ; Vanacker, Veerle ; Opfergelt, Sophie ; Ameijeiras Mariño, Yolanda ; Minella Jean ; Gerard Govers. EP027-09 - Slope gradient controls soil thickness and chemical weathering in subtropical Brazil: understanding rates and timescales of regional soilscape evolution through a combination of field data and modelling. AGU FALL MEETING (ONLINE everywhere, du 01/12/2020 au 17/12/2020).
2020
Thomas, Maxime ; Opfergelt, Sophie ; Monhonval, Arthur ; Broeder Lisa ; Vonk Jorien ; Zolkos Scott ; Tank Suzanne ; Kokelj Steve. Impact of abrupt permafrost thaw on mineral elements release: case study in Peel Plateau, west Canadian Arctic. AGU FALL MEETING (ONLINE everywhere, du 01/12/2020 au 17/12/2020).
2020
Mauclet, Elisabeth ; Opfergelt, Sophie ; Hirst, Catherine ; Monhonval, Arthur ; Debruxelles Laurentine ; Ledman Justin ; Taylor Meghan ; Schuiur A.G.. Influence of thawing permafrost on soil-plant mineral element transfer: Case study in Interior Alaska. AGU FALL MEETING (ONLINE everywhere, du 01/12/2020 au 17/12/2020).
2020
Opfergelt, Sophie ; Hirst, Catherine ; Monhonval, Arthur ; Mauclet, Elisabeth ; Thomas, Maxime. Integrating mineral interactions with organic carbon in thawing permafrost to assess climate feedbacks. EGU General Assembly 2020 (Virtual, du 04/05/2020 au 08/05/2020).
2020
Monhonval, Arthur ; Opfergelt, Sophie ; Mauclet, Elisabeth ; Hirst, Catherine ; Pereira, Benoît ; Vandeuren, Aubry ; Bemelmans, Nathan ; Grosse Guido ; Schirrmeister Lutz ; Fuchs Matthias. Iron Dynamics during Thermokarst Processes in the Yedoma Domain and Implications for Interactions between Iron and Organic Carbon. AGU FALL MEETING (ONLINE everywhere, du 01/12/2020 au 17/12/2020).
2020
Hirst, Catherine ; Opfergelt, Sophie ; Mauclet, Elisabeth ; Monhonval, Arthur ; Schuur A.G.. Mineral element and organic carbon transport from permafrost soils to a headwater stream under contrasting flow regimes and permafrost degradation. AGU FALL MEETING (ONLINE everywhere, du 01/12/2020 au 17/12/2020).
2020
Gaspard, François ; Opfergelt, Sophie ; Zahajska Petra ; Hirst, Catherine ; Delmelle, Pierre. Snowmelt initiates an additional source of silicon to streams in Yellowstone National Park, USA . Goldschmidt 2020 (Hawai, du 21/06/2020 au 26/06/2020).
2020
Opfergelt, Sophie. Update synthesis: The fate of organic carbon upon thaw also depends on interactions with mineral elements. 10th Annual Meeting of the Permafrost Carbon Network (Virtual, 10/11/2020).
2020
Opfergelt, Sophie ; Gaspard, François ; Hirst, Catherine. Waters in hydrothermal and polar environments: further developments for Si isotope measurements. Goldschmidt conference (Virtual, du 22/06/2020 au 26/06/2020).
2020
Opfergelt, Sophie ; Hirst, Catherine ; Monhonval, Arthur ; Mauclet, Elisabeth ; Thomas, Maxime. Why do we need to care about the evolution of mineral-organic carbon interactions in permafrost upon thawing?. AGU FALL MEETING (ONLINE everywhere, du 01/12/2020 au 17/12/2020).
2019
Thomas, Maxime ; Opfergelt, Sophie ; Monhonval, Arthur ; Hirst, Catherine ; Bröder Lisa ; Vonk Jorien ; Keskitalo Kirsi ; Zolkos Scott ; Tank Suzanne ; Kokelj Steve. Deep material eroded from retrogressive thaw slump: case study in Peel Plateau, west Canadian Arctic . Artic Week (Paris, France, du 09/12/2019 au 13/12/2019).
2019
Mauclet, Elisabeth ; Opfergelt, Sophie ; Monhonval, Arthur ; Hirst, Catherine ; Piette Aurélien ; Debruxelles, Laurentine ; Schuur Edward A.G.. Effect of thawing permafrost on soil mineral element distribution: case study in Interior Alaska . Artic Week (Paris, France, du 09/12/2019 au 13/12/2019).
2019
Liang, Meiyang ; Guo Zhengtang ; Opfergelt, Sophie. Evaluate the grain size effect on geochemical composition and proxies of Miocene loess in China. EGU 2019 (Vienna, Austria, du 07/04/2019 au 12/04/2019). In: Geophysical Research Abstracts, Vol. 21, p. 13618 (2019).
2019
Thomas, Maxime ; Opfergelt, Sophie ; Monhonval, Arthur ; Bemelmans, Nathan ; Lafreniere Melissa ; Heslop Joanne ; Fouché Julien ; Rochereau Thomas. Impact of modern thermokarst on mineral element release: case study in Cape Bounty, Canada. Artic Week (Paris, France, du 09/12/2019 au 13/12/2019).
2019
Monhonval, Arthur ; Opfergelt, Sophie ; Mauclet, Elisabeth ; Hirst, Catherine ; Strauss Jens ; Grosse Guido ; Schirmeister Lutz ; Kuhry Peter. Influence of Holocene thermokarst activities on mineral element content in Yedoma deposits . Artic Week (Paris, France, du 09/12/2019 au 13/12/2019).
2019
Hirst, Catherine ; Opfergelt, Sophie ; Gaspard, François ; Hendry Katherine R ; Mc Knight Diane ; Welch Susan ; Lyons W Berry ; Hatton Jade E.. Tracing the contribution from weathering to a glacial stream in Antarctica . Artic Week (Paris, France, du 09/12/2019 au 13/12/2019).
2019
Opfergelt, Sophie ; Hirst, Catherine ; Mauclet, Elisabeth ; Monhonval, Arthur ; Thomas, Maxime ; Dailly, Hélène. WeThaw: Mineral Weathering in Thawing Permafrost . Artic Week (Paris, France, du 09/12/2019 au 13/12/2019).
2018
Gaspard, François ; Opfergelt, Sophie ; Hartmann Jens ; Hosono Takahiro ; Dessert Céline ; Delmelle, Pierre. Assessing the contribution of hydrothermal alteration to element fluxes from volcanic island arcs using dissolved Ge/Si ratios in rivers. IsoWorkshop (Sorèze, France, du 08/01/2018 au 11/01/2018).
2018
Mauclet, Elisabeth ; Opfergelt, Sophie ; Monhonval, Arthur ; Strauss Jens ; Grosse Guido ; Fuchs Matthias ; Schirrmeister Lutz. Distribution of mineral constituents in Yedoma permafrost: implications for Yedoma formation and upon thawing. 5th European Conference on Permafrost (Chamonix, France, du 23/06/2018 au 01/07/2018).
2018
Hirst, Catherine ; Opfergelt, Sophie ; Lefebvre, Béatrice ; Bertouille, Nathan ; Kuhry, peter ; Palmtag, Juri. LOCAL VARIABILITY OF MINERAL ELEMENT DISTRIBUTION IN PERMAFROST TERRAIN: IMPLICATIONS UPON THAWING. EUCOP, European Conference on Permafrost (Chamonix, France, du 23/06/2018 au 01/07/2018).
2018
Opfergelt, Sophie. Mineral Weathering in Thawing Permafrost: Causes and consequences. “Coupling Earth system function to climatic change” (Bordeaux, du 08/03/2018 au 09/03/2018) (Soumis).
2018
Mauclet, Elisabeth ; Opfergelt, Sophie ; Hirst, Catherine ; Monhonval, Arthur. Permafrost degradation and mineral weathring implications for new sources of nutrients for vegetation. Midi de rencontre étudiants-chercheurs UCLouvain (Louvain-la-Neuve, Belgium, 26/10/2018).
2018
Quimbo, Michelle ; Delmelle, Pierre ; Opfergelt, Sophie ; Sanchez Pearl. Phytolith Stock of a 26-yr Volcanic Ash Soil in Tarlac, Philippines. Young Researches Overseas Day (Brussels, Belgium, 07/12/2018).
2018
Quimbo, Michelle ; Delmelle, Pierre ; Opfergelt, Sophie ; Sanchez P.. Phytolith stock of a 26-yr volcanic ash soil in Tarlac, Philippines. Young Researchers Day 2018 Multidisciplinary Workshop (Brussels, Belgium, 07/12/2018).
2018
Gaspard, François ; Opfergelt, Sophie ; Hartmann Jens ; Hosono Takahiro ; Delmelle, Pierre. Seasonal variations of dissolved Ge:Si ratios in streams from the Aso caldera, Kyùshù, Japan. GOLDSCHMIDT 2018 (BOSTON, USA, du 12/08/2018 au 17/08/2018).
2018
Opfergelt, Sophie. 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. Conference “Metal Stable Isotope Geochemistry” & Final IsoNose Workshop (Sorèze, France, du 08/01/2018 au 11/01/2019) (Soumis).
2018
Opfergelt, Sophie. The permafrost mineral reserve: identify potential mineral nutrient hotspots upon thawing. EUCOP5 (Chamonix, France, du 24/06/2018 au 29/06/2018).
2018
Opfergelt, Sophie. Tracing controls on iron export from high latitude peat soils. POLAR 2018 (Davos, Switzerland, du 19/06/2018 au 23/06/2018).
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 2014 (Vienna, Austria, du 27/04/2014 au 02/05/2014). In: Geophysical Research Abstracts, Vol. 16, p. 9714-1 (mai 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
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).
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