PD Dr. Paul Wersin

2023

Mäder, U.; Wersin, P. (2023). Reference porewaters for SGT Stage 3 of the Opalinus Clay for the siting regions Jura Ost (JO), Nördlich Lägern (NL) and Zürich Nordost (ZNO) (Arbeitsbericht NAB 22-47). Wettingen, Switzerland: Nagra

Mazurek, Martin; Wersin, Paul; Hadi, Jebril; Grenèche, Jean-Marc; Prinpreecha, Nouvarat; Traber, Daniel (2023). Geochemistry and palaeo-hydrogeology of the weathered zone in the Opalinus Clay. Applied Clay Science, 232, p. 106793. Elsevier 10.1016/j.clay.2022.106793

Wersin, Paul; Hadi, Jebril; Kiczka, Mirjam; Jenni, Andreas; Grenèche, Jean‐Marc; Diomidis, Nikitas; Leupin, Olivier X.; Svensson, Daniel; Sellin, Patrik; Reddy, Bharti; Smart, Nicholas; Zhang, Zhidong (2023). Unravelling the corrosion processes at steel/bentonite nterfaces in in situ tests (In Press). Materials and corrosion Wiley 10.1002/maco.202313755

2022

Charlet, Laurent; Tournassat, Christophe; Grenèche, Jean-Marc; Wersin, Paul; Géhin, Antoine; Hadi, Jebril (2022). Mössbauer spectrometry insights into the redox reactivity of Fe‑bearing phases in the environment. Journal of material research, pp. 1-16. Springer 10.1557/s43578-022-00823-8

Ma, Jin; Pekala, Marek; Alt-Epping, Peter; Pastina, Barbara; Maanoja, Susanna; Wersin, Paul (2022). 3D modelling of long-term sulfide corrosion of copper canisters in a spent nuclear fuel repository. Applied geochemistry, 146, p. 105439. Elsevier 10.1016/j.apgeochem.2022.105439

Tomonaga, Yama; Wersin, Paul; Rufer, Daniel; Pastina, Barbara; Koho, Petri; Ville, Heino; Kipfer, Rolf (2022). Gas-bentonite interactions: Towards a better understanding of gas dynamics in Engineered Barrier Systems. Applied geochemistry, 138, p. 105205. Elsevier 10.1016/j.apgeochem.2022.105205

Wersin, Paul; Mazurek, Martin; Gimmi, Thomas (2022). Porewater chemistry of Opalinus Clay revisited: Findings from 25 years of data collection at the Mont Terri Rock Laboratory. Applied geochemistry, 138, p. 105234. Elsevier 10.1016/j.apgeochem.2022.105234

Fernández, Ana Maria; Kaufhold, Stephan; Olin, Markus; Zheng, Lian-Ge; Wersin, Paul; Wilson, James (2022). Editorial for Special Issue “Clay Mineral Transformations after Bentonite/Clayrocks and Heater/Water Interactions from Lab and Large-Scale Tests”. Minerals, 12(5), p. 569. MDPI 10.3390/min12050569

2021

Jenni, Andreas; Meeussen, Johannes C.L.; Pakkanen, Tapani A.; Hirvi, Janne T.; Akinwunmi, Bukunmi; Yustres, Ángel; Navarro, Vicente; López-Vizcaíno, Rubén; Muuri, Eveliina; Niskanen, Mika; Wersin, Paul; Mäder, Urs (2021). Coupling of chemical and hydromechanical properties in bentonite: A new reactive transport model. Applied Clay Science, 214(106274), p. 106274. Elsevier 10.1016/j.clay.2021.106274

Pekala, Marek; Wersin, Paul; Pastina, Barbara; Lamminmäki, Ralf; Vuorio, Marja; Jenni, Andreas (2021). Potential impact of cementitious leachates on the buffer porewater chemistry in the Finnish repository for spent nuclear fuel – A reactive transport modelling assessment. Applied geochemistry, 131, p. 105045. Elsevier 10.1016/j.apgeochem.2021.105045

Navarro, Vicente; Yustres, Ángel; Jenni, Andreas; De la Morena, Gema; Asensio, Laura; López-Vizcaíno, Rubén; Cabrera, Virginia; Wersin, Paul; Mäder, Urs; Muuri, Eveliina; Niskanen, Mika; Akinwunmi, Bukunmi; Hirvi, Janne T.; Pakkanen, Tapani A. (2021). Molecular dynamics data for modelling the microstructural behaviour of compacted sodium bentonites. Applied Clay Science, 201, p. 105932. Elsevier 10.1016/j.clay.2020.105932

Kiczka, Mirjam; Pekala, Marek; Maanoja, Susanna; Muuri, Eveliina; Wersin, Paul (2021). Modelling of solute transport and microbial activity in diffusion cells simulating a bentonite barrier of a spent nuclear fuel repository. Applied Clay Science, 211, p. 106193. Elsevier 10.1016/j.clay.2021.106193

Wersin, Paul; Hadi, Jebril; Jenni, Andreas; Svensson, Daniel; Greneche, Jean-Marc; Sellin, Patrik; Leupin, Olivier (2021). Interaction of Corroding Iron with Eight Bentonites in the Alternative Buffer Materials Field Experiment (ABM2). Minerals, 11(8), p. 907. MDPI 10.3390/min11080907

2020

Wersin, P.; Pekala, M.; Mazurek, M.; Gimmi, T.; Mäder, U.; Jenni, A.; Rufer, D.; Aschwanden, L. (2020). Porewater Chemistry of Opalinus Clay: Methods, Data, Modelling & Buffering Capacity (Technical Report, Nagra 18-01). NAGRA, National Cooperative for the Disposal of Radioactive Waste

2019

Jenni, Andreas; Wersin, Paul; Thoenen, T.; Baeyens, B.; Ferrari, A.; Gimmi, Thomas; Mäder, Urs; Marschall, P.; Hummel, W.; Leupin, O. (2019). Bentonite backfill performance in a high-level waste repository: a geochemical perspective (Technical Report, Nagra NTB 19-03). Wettingen, Switzerland: NAGRA, National Cooperative for the Disposal of Radioactive Waste

Gautschi, Andreas; Gaus, Irina; Gimmi, Thomas; Mazurek, Martin; Wersin, Paul; Cathelineau, Michel; Bath, Adrian (2019). Applied geochemistry special issue on "Geochemistry of clays and clay rocks in the context of radioactive waste disposal". Applied geochemistry, 105, pp. 127-129. Elsevier 10.1016/j.apgeochem.2019.05.001

Pekala, Marek; Alt-Epping, Peter; Wersin, Paul (2019). 3D and 1D Dual-Porosity Reactive Transport Simulations - Model Improvements, Sensitivity Analyses, and Results from the Integrated Sulfide Project (Working Report WR-2018-31). Olkiluoto: Posiva Oy

Hadi, J.; Wersin, P.; Mazurek, M.; Waber, H. N.; Marques Fernandes, M.; Baeyens, B.; Honty, M.; De Craen, M.; Frederickx, L.; Dohrmann, R.; Fernández, A. M. (2019). Intercomparison of CEC methods within the GD project Mont Terri Project

Pekala, M.; Wersin, P.; Rufer, D.; Curti, E. (2019). GD experiment: Geochemical Data Experiment. Mineralogy of carbonate and sulphate minerals in the Opalinus Clay and adjacent formations (Mont Terri Technical Report TR 2018-03). Mont Terri Project

Tomonaga, Yama; Giroud, Niels; Brennwald, Matthias S; Horstmann, Edith; Diomidis, Nikitas; Kipfer, Rolf; Wersin, Paul (2019). On-line monitoring of the gas composition in the Full-scale Emplacement experiment at Mont Terri (Switzerland). Applied geochemistry, 100, pp. 234-243. Elsevier 10.1016/j.apgeochem.2018.11.015

Pekala, Marek; Wersin, Paul; Cloet, Veerle; Diomidis, Nikitas (2019). Reactive transport calculations to evaluate sulphide fluxes in the near-field of a SF/HLW repository in the Opalinus Clay. Applied geochemistry, 100, pp. 169-180. Elsevier 10.1016/j.apgeochem.2018.11.006

Hadi, Jebril; Wersin, Paul; Serneels, Vincent; Greneche, Jean-Marc (2019). Eighteen years of steel–bentonite interaction in the FEBEX in situ test at the Grimsel Test Site in Switzerland. Clays and clay minerals, 67(2), pp. 111-131. Clay Minerals Society 10.1007/s42860-019-00012-5

2018

Giroud, N.; Tomonaga, Y.; Wersin, P.; Briggs, S.; King, F.; Vogt, T.; Diomidis, N. (2018). On the fate of oxygen in a spent fuel emplacement drift in Opalinus Clay. Applied geochemistry, 97, pp. 270-278. Elsevier 10.1016/j.apgeochem.2018.08.011

Alt-Epping, Peter; Gimmi, Thomas; Wersin, Paul; Jenni, Andreas (2018). Incorporating electrical double layers into reactive-transport simulations of processes in clays by using the Nernst-Planck equation: A benchmark revisited. Applied geochemistry, 89, pp. 1-10. Elsevier 10.1016/j.apgeochem.2017.10.018

Wersin, Paul; Gimmi, Thomas; Mazurek, Martin; Alt-Epping, Peter; Pekala, Marek; Traber, Daniel (2018). Multicomponent diffusion in a 280 m thick argillaceous rock sequence. Applied geochemistry, 95, pp. 110-123. Elsevier 10.1016/j.apgeochem.2018.05.013

2017

Hadi, J.; Wersin, P.; Jenni, A.; Greneche, J. M. (2017). Redox evolution and Fe-bentonite interaction in the ABM2 experiment, Äspö Hard Rock Laboratory (Technical Report NTB 2017-10). Nagra

Wersin, Paul (2017). Topics and processes dealt with in the IP FUNMIG and theit treatment in the safety case of geologic repositories for radioactive waste (Technischer Bericht NTB 09-01). Wettingen, Switzerland: Nagra

Yustres, A.; Jenni, Andreas; Asensio, L.; Pintado, X.; Koskinen, K.; Navarro, V.; Wersin, Paul (2017). Comparison of the hydrogeochemical and mechanical behaviours of compacted bentonite using different conceptual approaches. Applied Clay Science, 141, pp. 280-291. Elsevier 10.1016/j.clay.2017.03.006

Wersin, Paul; Traber, D; Mäder, Urs; Mazurek, Martin; Waber, Niklaus; Rufer, Daniel; Gimmi, Thomas; Cloet, V (2017). Porewater chemistry in claystones in the context of radioactive waste disposal. Procedia earth and planetary science, 17, pp. 718-721. Elsevier 10.1016/j.proeps.2016.12.182

Leupin, Olivier X; Van Loon, Luc R; Gimmi, Thomas; Wersin, Paul; Soler, Josep M (2017). Exploring diffusion and sorption processes at the Mont Terri rock laboratory (Switzerland): lessons learned from 20 years of field research. Swiss journal of geosciences, 110(1), pp. 391-403. Springer 10.1007/s00015-016-0254-z

Wersin, Paul; Alt-Epping, Peter; Pekala, Marek; Pitkänen, Petteri; Snellman, Margit (2017). Modelling Sulfide Fluxes and Cu Canister Corrosion Rates in the Engineered Barrier System of a Spent Fuel Repository. Procedia earth and planetary science, 17, pp. 722-725. Elsevier 10.1016/j.proeps.2016.12.183

Charlet, Laurent; Alt-Epping, Peter; Wersin, Paul; Gilbert, Benjamin (2017). Diffusive transport and reaction in clay rocks: A storage (nuclear waste, CO 2, H 2), energy (shale gas) and water quality issue. Advances in water ressources, 106, pp. 39-59. Elsevier 10.1016/j.advwatres.2017.03.019

Wersin, P.; Kober, F. (2017). FEBEX-DP – Metal corrosion and iron-bentonite interaction studies (Nagra Arbeitsberichte NAB 16-16). Wettingen, Switzerland: Nagra

2016

Wersin, Paul; Mazurek, Martin; Mäder, Urs; Gimmi, Thomas; Rufer, Daniel; Lerouge, Catherine; Traber, Daniel (2016). Constraining porewater chemistry in a 250m thick argillaceous rock sequence. Chemical geology, 434, pp. 43-61. Elsevier 10.1016/j.chemgeo.2016.04.006

Grolimund, D.; Wersin, Paul; Brendlé, J.; Huve, J.; Kiviranta, L.; Snellman, M. (2016). Interaction of titanium with smectite within the scope of a spent fuel repository: a spectroscopic approach. Clay minerals, 51(2), pp. 249-266. Mineralogical Society 10.1180/claymin.2016.051.2.11

Wersin, Paul; Kiczka, Mirjam; Koskinen, Kari (2016). Porewater chemistry in compacted bentonite: Application to the engineered buffer barrier at the Olkiluoto site. Applied geochemistry, 74, pp. 165-175. Elsevier 10.1016/j.apgeochem.2016.09.010

2015

Mazurek, Martin; Oyama, Takahiro; Wersin, Paul; Alt-Epping, Peter (2015). Pore-water squeezing from indurated shales. Chemical geology, 400, pp. 106-121. Elsevier 10.1016/j.chemgeo.2015.02.008

Wersin, Paul; Jenni, Andreas; Mäder, Urs (2015). Interaction of corroding iron with bentonite in the ABM1 experiment at Äspö, Sweden: A microscopic approach. Clays and clay minerals, 63(1), pp. 51-68. Clay Minerals Society 10.1346/ccmn.2015.0630105

Wersin, Paul; Mazurek, Martin; Waber, Niklaus; Mäder, Urs; Gimmi, Thomas; Rufer, Daniel; Lerouge, Catherine; Oyama, Takahiro; Traber, Daniel (2015). Constraining porewater chemistry in a clay–rich rock sequence. In: Clays in Natural and Engineered Barriers for Radioactive Waste Confinement: 6th International Conference. Brussels. 23.-26.03.2015.

2014

Wersin, Paul; Kiczka, Mirjam; Rosch, Dominic (2014). Safety Case for the Disposal of Spent Nuclear Fuel at Olkiluoto. Radionuclide Solubility Limits and Migration. Parameters for the Canister and Buffer (Report POSIVA 2012-39). Olkiluoto, Finland: Posiva

Wersin, Paul; Kiczka, Mirjam; Rosch, Dominic; Ochs, Michael; Trudel, David (2014). Safety Case for the Disposal of Spent Nuclear Fuel at Olkiluoto. Radionuclide Solubility Limits and Migration Parameters for the Backfill Posiva

Gimmi, Thomas; Leupin, Olivier X.; Eikenberg, Jost; Glaus, Martin A.; Van Loon, Luc R.; Waber, Niklaus H.; Wersin, Paul; Wang, Hao A.O.; Grolimund, Daniel; Borca, Camelia N.; Dewonck, Sarah; Wittebroodt, Charles (2014). Anisotropic diffusion at the field scale in a 4-year multi-tracer diffusion and retention experiment – I: Insights from the experimental data. Geochimica et cosmochimica acta, 125(125), pp. 373-393. Elsevier Science 10.1016/j.gca.2013.10.014

Wersin, Paul; Alt-Epping, Peter; Pitkänen, Petteri; Román-Ross, Gabriela; Trinchero, Paolo; Molinero, Jorge; Smith, Paul; Snellman, Margit; Filby, André; Kiczka, Mirjam (2014). Sulphide fluxes and concentrations in the spent nuclear fuel repository at Olkiluoto (Posiva Report 2014-01). Olkiluoto, Finland: Posiva Oy

Wersin, Paul; Birgersson, M. (2014). Reactive transport modelling of iron-bentonite interaction within the KBS-3H disposal concept – the Olkiluoto site as case study. Geological Society Special Publications, 400(1), pp. 237-250. Geological Society 10.1144/SP400.24

Birgersson, Martin; Wersin, Paul (2014). KBS-3H - Reactive transport modelling of iron-bentonite interactions, an update for the Olkiluoto case (Working Report WR 2013-02). Olkiluoto, Finland: Posiva

King, Fraser; Wersin, Paul (2014). Review of supercontainer copper shell-bentonite interactions and possible effects on buffer performance for the KBS-3H design (Working Report WR 2013-03). Olkiluoto, Finland: Posiva

Hellä, Pirjo; Pitkänen, Petteri; Löfman, Jari; Partamies, Sami; Vuorinen, Ulla; Wersin, Paul (2014). Safety case for the disposal of spent nuclear Fuel at Olkiluoto. Definition of reference and bounding groundwaters, buffer and backfill porewaters (Posiva Report 2014-04). Olkiluoto, Finland: Posiva

2013

Wersin, Paul; Waber, H. Niklaus; Mazurek, Martin; Mäder, Urs K.; Gimmi, Thomas; Rufer, Daniel; Traber, Daniel (2013). Resolving Cl and SO4 Profiles in a Clay-Rich Rock Sequence. Procedia earth and planetary science, 7, pp. 892-895. Elsevier 10.1016/j.proeps.2013.03.197

Soler, J.M.; Wersin, Paul; Leupin, O.X. (2013). Modeling of Cs+ diffusion and retention in the DI-A2 experiment (Mont Terri). Uncertainties in sorption and diffusion parameters. Applied geochemistry, 33, pp. 191-198. Elsevier 10.1016/j.apgeochem.2013.02.012

Wersin, Paul (2013). LOT A2 test parcel, compilation of copper data in the LOT A2 test parcel (SKB Technical Report TR-13-17). Stockholm, Sweden: Svensk Kärnbränslehantering AB

Wersin, P.; Mazurek, M.; Waber, H.N.; Mäder, U.K.; Gimmi, Th.; Rufer, D.; de Haller, A. (2013). Rock and porewater characterisation on drillcores from the Schlattingen borehole (Nagra Arbeitsberichte NAB 12-54). Wettingen, Switzerland: Nagra

2012

Schwyn, B.; Wersin, P.; Rüedi, J.; Schneider, J.; Altmann, S.; Missana, T.; Noseck, U. (2012). FUNMIG Integrated Project results and conclusions from a safety case perspective. Applied geochemistry, 27(2), pp. 501-515. Oxford: Pergamon 10.1016/j.apgeochem.2011.09.018

Leupin, O.; Wersin, P.; Mettler, S.; Mäder, U.; Gaucher, E. C.; Vinsot, A.; De Cannière, P.; Gäbler, H.E.; Eichinger, L.; Kunimaro, T.; Kiho, K. (2012). PC (Porewater chemistry) Experiment: Synthesis report (Mont Terri Technical Report TR 2009-06). Mont Terri Project

2011

Tournassat, Christophe; Alt-Epping, Peter; Gaucher, Eric C.; Gimmi, Thomas; Leupin, Olivier X.; Wersin, Paul (2011). Biogeochemical processes in a clay formation in situ experiment: Part F - Reactive transport modelling. Applied geochemistry, 26(6), pp. 1009-1022. Oxford: Pergamon 10.1016/j.apgeochem.2011.03.009

Wersin, Paul; Leupin, X.O.; Mettler, S.; Gaucher, E. C.; Mäder, U.; Vinsot, A.; De Canni re, P.; Gäbler, H.E.; Kunimaro, T.; Kiho, K. (2011). Biogeochemical processes in a clay formation in-situ experiment: Part A - Overview, experimental design and water data of an experiment in the Opalinus Clay at the Mont Terri Underground Research Laboratory, Switzerland. Applied geochemistry, 26(6), pp. 931-953. Oxford: Pergamon 10.1016/j.apgeochem.2011.03.004

Wersin, Paul; Stroes-Gascoyne, S.; Pearson, F.J.; Tournassat, C.; Leupin, O.X.; Schwyn, B. (2011). Biogeochemical processes in a clay formation in situ experiment: Part G - key interpretations & conclusions. Applied geochemistry, 26(6), pp. 1023-1034. Pergamon 10.1016/j.apgeochem.2011.03.010

De Cannière, P.; Schwarzbauer, J.; Höhener, P.; Lorenz, G.; Salah, S.; Leupin, O.X.; Wersin, Paul (2011). Biogeochemical processes in a clay formation in situ experiment: Part C – Organic contamination and leaching data. Applied geochemistry, 26(6), pp. 967-979. Elsevier 10.1016/j.apgeochem.2011.03.006

Wersin, Paul; Grolimund, Daniel; Kumpulainen, Sirpa; Kiviranta, Leena; Brendlé, Jocelyne; Snellman, Margit (2011). Titanium alloys as alternative material for the supercontainer in the KBS-3H concept: A preliminary Ti-clay interaction study (Working Report WR 2010-72). Olkiluoto, Finland: Posiva

Kumpulainen, Sirpa; Kiviranta, Leena; Carlsson, Torbjörn; Muurinen, Arto; Svensson, Daniel; Sasamoto, Hiroshi; Yui, Mikatzu; Wersin, Paul; Rosch, Dominic (2011). Long-term alteration of bentonite in the presence of metallic iron (Working Report WR 2010-71). Olkiluoto, Finland: Posiva

2010

Appelo, C.A.J.; Van Loon, L.R.; Wersin, Paul (2010). Multicomponent diffusion of a suite of tracers (HTO, Cl, Br, I, Na, Sr, Cs) in a single sample of Opalinus Clay. Geochimica et cosmochimica acta, 74(4), pp. 1201-1219. Elsevier Science 10.1016/j.gca.2009.11.013

Wersin, P.; Appelo, C.A.J.; Baeyens, B.; Bossart, P.; Dewonck, S.; Eikenberg, J.; Fierz, T.; Fisch, H.R.; Gimmi, T.; Grolimund, D.; Leupin, O.X.; Möri, A.; Soler, J.M.; van Dorp, F.; Van Loon, L. (2010). Long-term Diffusion (DI-A) Experiment: DI-A2: Diffusion of HTO, Br, I-, Cs+, 85Sr2+ and 60Co2+: Field activities, data and modelling (Mont Terri Technical Report TR 2009-04). Mont Terri Project

2009

Cui, D.; Puranen, A.; Devoy, J.; Scheidegger, A.; Leupin, O.X.; Wersin, Paul; Gens, R.; Spahiu, K. (2009). Reductive immobilization of 79Se by iron canister under simulated repository environment. Journal of Radioanalytical and Nuclear Chemistry, 282(2), pp. 349-354. Springer 10.1007/s10967-009-0328-8

2008

Wersin, Paul; Soler, J. M.; Van Loon, L.; Eikenberg, J.; Baeyens, B.; Grolimund, D.; Gimmi, Thomas; Dewonck, S. (2008). Diffusion of HTO, Br-, I-, Cs+, Sr-85(2+) and Co-60(2+) in a clay formation: Results and modelling from an in situ experiment in Opalinus Clay. Applied geochemistry, 23(4), pp. 678-691. Pergamon 10.1016/j.apgeochem.2007.11.004

Courdouan, Amandine; Christl, Iso; Rabung, Thomas; Wersin, Paul; Kretzschmar, Ruben (2008). Proton and Trivalent Metal Cation Binding by Dissolved Organic Matter in the Opalinus Clay and the Callovo-Oxfordian Formation. Environmental science & technology, 42(16), pp. 5985-5991. ACS Publications 10.1021/es8007358

Karnland, O.; Nilsson, U.; Weber, H.; Wersin, Paul (2008). Sealing ability of Wyoming bentonite pellets foreseen as buffer material - laboratory tests. Physics and chemistry of the earth, 33, S472-S475. Elsevier

Soler, J.M.; Samper, J.; Yllera, A.; Quejido, A.; Fernández, M.; Yang, C.; Naves, A.; Wersin, Paul (2008). The DI-B in situ diffusion experiment at Mont Terri: Results and modeling. Physics and chemistry of the earth, 33, S196-S207. Elsevier 10.1016/j.pce.2008.10.010

Vinsot, A.; Appelo, C.A.J.; Cailteau, C.; Wechner, S.; Pironon, J.; De Donato, P.; De Cannière, P.; Mettler, S.; Wersin, Paul; Gäbler, H.-E. (2008). CO2 data on gas and porewater sampled in situ in the Opalinus Clay at the Mont Terri rock laobratory. Physics and chemistry of the earth, 33, S54-S60. Elsevier 10.1016/j.pce.2008.10.050

2007

Appelo, C. Anthony J.; Wersin, Paul (2007). Multicomponent Diffusion Modeling in Clay Systems with Application to the Diffusion of Tritium, Iodide, and Sodium in Opalinus Clay. Environmental science & technology, 41(14), pp. 5002-5007. ACS Publications 10.1021/es0629256

Courdouan, A.; Christl, I.; Meylan, S.; Wersin, Paul; Kretzschmar, R. (2007). Characterization of dissolved organic matter in anoxic rock extracts and in situ pore water of the Opalinus Clay. Applied geochemistry, 22(12), pp. 2926-2939. Elsevier 10.1016/j.apgeochem.2007.09.001

Courdouan, A.; Christll, I.; Meylan, S.; Wersin, Paul; Kretzschmar, R. (2007). Isolation and characterization of dissolved organic matter from the Callovo-Oxfordian formation. Applied geochemistry, 22(7), pp. 1537-1548. Elsevier 10.1016/j.apgeochem.2007.04.001

Wersin, Paul; Johnson, L.H.; McKinley, I.G. (2007). Performance of the bentonite barrier beyond 100 C: a critical review. Physics and chemistry of the earth, 32(8-14), pp. 780-788. Elsevier 10.1016/j.pce.2006.02.051

Wersin, Paul; Birgersson, Martin; Olsson, Siv; Karnland, Ola; Snellman, Margit (2007). Impact of corrosion-derived iron on the bentonite buffer within the KBS-3H disposal concept – the Olkiluoto Site as Case Study (Posiva Report 2007-11). Olkiluoto, Finland: Posiva

2006

Turrero, M.J.; Fernandez, A.M.; Pena, J.; Sanchez, M.D.; Wersin, Paul; Bossart, P.; Sanchez, M.; Melon, A.; Yllera, A.; Hernan, P. (2006). Pore water chemistry of a Paleogene continental mudrock in Spain and a Jurassic marine mudrock in Switzerland: sampling methods and geochemical interpretation. Journal of Iberian Geology, 32, pp. 233-258. Universidad Complutense de Madrid

Wersin, Paul; Johnson, L.H.; Snellman, M. (2006). Impact of iron released from steel components on the performance of the bentonite buffer: a preliminary assessment in the framework of the KBS-3H disposal concept. Materials Research Society Symposium Proceedings, 932 Materials Research Society 10.1557/PROC-932-117.1

Wersin, P.; Baeyens, B.; Bossart, P.; A., Cartalade; Dewonck, S.; Eikenberg, J.; Fierz, T.; Fisch, H.R.; Gimmi, T.; Grolimund, D.; Hernán, P.; Möri, A.; Savoye, S.; Soler, J.; van Dorp, F.; Van Loon, L. (2006). Long-term diffusion experiment (DI-A): Diffusion of HTO, I-, 22Na+ and Cs+: field activities, data and modelling (Mont Terri Technical Report TR 2003-06). Mont Terri Project

Wersin, Paul (2006). Workshop on Fe-clay interactions in repository environments, a joint initiative by Andra, SKB and Nagra. Basel / Switzerland, 9-10 May 2006 (Nagra Arbeitsberichte NAB 06-15). Wettingen, Switzerland: Nagra

2005

Johnson, C.A.; Mönch, H.; Wersin, Paul; Kugler, P.; Wenger, C. (2005). Solubility of antimony and other elements in samples taken from shooting ranges. Journal of environmental quality, 34(1), pp. 248-254. American Society of Agronomy ASA

Johson, Lawrence; Marschall, Paul; Wersin, Paul; Gribi, Peter (2005). HMCBG Processes Related to the Steel Components in the KBS-3H Disposal Concept (Working Report WR 2005-09). Olkiluoto, Finland: Posiva

2004

Wersin, Paul; Van Loon, L. R.; Soler, J. M.; Yllera, A.; Eikenberg, J.; Gimmi, Thomas; Hernàn, P.; Boisson, J.-Y. (2004). Long-term diffusion experiment at Mont Terri: first results from field and laboratory data. Applied Clay Science, 26(1-4), pp. 123-135. Elsevier 10.1016/j.clay.2003.09.007

Van Loon, Luc R.; Wersin, Paul; Soler, J. M.; Eikenberg, J.; Gimmi, Thomas; Hernan, P.; Dewonck, S.; Savoye, S. (2004). In-situ diffusion of HTO, 22Na+, Cs+ and I- in Opalinus Clay at the Mont Terri underground rock laboratory. Radiochimica acta, 92(9-11), pp. 757-763. Oldenbourg 10.1524/ract.92.9.757.54988

Wersin, Paul; Vinsot, A.; De Cannière, Hernán; Gäbler, H.-E.; Hama, K.; Mahara, Y.; Gaucher, E.; Pearson, F.J. (2004). Results from the Porewater Chemistry Experiment in Opalinus Clay at Mont Terri, Switzerland. In: 11th International Symposium on Water-Rock Interactions (WRI-11). Saratoga Springs, New York. 27.06.-02.07.2004.

Wersin, Paul; Curti, E; Appelo, C.A.J (2004). Modelling bentonite–water interactions at high solid/liquid ratios: swelling and diffuse double layer effects. Applied Clay Science, 26(1-4), pp. 249-257. Elsevier 10.1016/j.clay.2003.12.010

Yllera, A.; Hernández, A.; Mingarro, M.; Quejido, A.; Sedano, L.A.; Soler, J.M.; Samper, J.; Molinero, J.M.; Martín, P.L.; Fernández, M.; Wersin, Paul; Rivas, P.; Hernán, P. (2004). DI-B experiment: planning, design and performance of an in situ diffusion experiment in the Opalinus Clay formation. Applied Clay Science, 26(1-4), pp. 181-196. Elsevier 10.1016/j.clay.2003.12.007

Wersin, P.; Schwyn, B. (2004). Integrated approach for the development of geochemical databases used for safety assessment (Technical Report NTB 03-06). Wettingen, Switzerland: Nagra

2003

Wersin, Paul; Johnson, Lawrence H.; Schwyn, Bernhard (2003). Assessment of Redox Conditions in the Near Field of Nuclear Waste Repositories: Application to the Swiss high-level and intermediate level waste disposal concept. MRS Proceedings, 807, p. 539. Materials Research Society 10.1557/PROC-807-539

Wersin, Paul (2003). Geochemical modelling of bentonite porewater in high-level waste repositories. Journal of contaminant hydrology, 61(1-4), pp. 405-422. Elsevier 10.1016/S0169-7722(02)00119-5

Scheidegger, A.M.; Grolimund, D.; Cui, D.; Devoy, J.; Spahiu, K.; Wersin, Paul; Bonhoure, I.; Janousch, M. (2003). Reduction of selenite on corroded iron: a micro-spectroscopic study. Journal de Physique IV (Proceedings), 104, pp. 417-420. EDP Sciences 10.1051/jp4:20030112

Wersin, P.; Johnson, L.H.; Schwyn, B.; Berner, U.; Curti, E. (2003). Redox conditions in the near field of a repository for SF/HLW and ILW in Opalinus Clay (Technical Report NTB 02-13). Wettingen, Switzerland: Nagra

2002

Cui, Daqing; Spahiu, Kastriot; Wersin, Paul (2002). Redox Reactions of Iron and Uranium Dioxide in Simulated Cement Pore Water Under Anoxic Conditions. MRS Online Proceedings Library, 757, II9.11. Cambridge University Press 10.1557/PROC-757-II9.11

Curti, E.; Wersin, P. (2002). Assessment of porewater chemistry in the bentonite backfill for the Swiss SF/HLW repository (Technical Report NTB 02-09). Wettingen, Switzerland: Nagra

2001

Wersin, P.; Abrecht, J.; Höhener, P. (2001). Large-scale redox plume in glaciofluvial deposits due to sugar-factory wastes and wastewater at Aarberg, Switzerland. Hydrogeology journal, 9(3), pp. 282-296. Springer 10.1007/s100400100136

2000

Wersin, Paul; Griffioen, J. (2000). European network infrastructures for studying chemodynamics and water quality protection in porous media [Textbook] . Office for Official Publications of the European Communities, Luxembourg

1997

Duro, Lara; Bruno, Jordi; Gómez, Paloma; Gimeno, Ma José; Wersin, Paul (1997). Modelling of the migration of trace elements along groundwater flowpaths by using a steady state approach application to the site at El Berrocal (Spain). Journal of contaminant hydrology, 26, pp. 35-43. Elsevier

1995

Malmström, Maria; Banwart, Steven; Duro, Lara; Wersin, Paul; Bruno, Jordi (1995). Biotite and chlorite weathering at 25 ºC (SKB Technical Report TR 95-01). Stockholm, Sweden: Svensk Kärnbränslehantering AB

1994

Wersin, Paul; Spahiu, Kastriot; Bruno, Jordi (1994). Time evolution of dissolved oxygen and redox conditions in a HLW repository (Technical Report 94-02). SWEDISH NUCLEAR FUEL AND WASTE MANAGEMENT CO

Wanner, H.; Albinsson, Y.; Karnland, O.; Wieland, E.; Wersin, Paul; Charlet, L. (1994). The acid/base chemistry of montmorillonite. Radiochimica acta, 66-67, pp. 157-162. Oldenbourg

Wersin, Paul; Hochella, Michael F.; Persson, Per; Redden, George; Leckie, James O.; Harris, David W. (1994). Interaction between aqueous uranium (VI) and sulfide minerals: Spectroscopic evidence for sorption and reduction. Geochimica et cosmochimica acta, 58(13), pp. 2829-2843. Elsevier Science 10.1016/0016-7037(94)90117-1

Wersin, Paul; Spahiu, Kastriot; Bruno, Jordi (1994). Kinetic modelling of bentonite-canister interaction. Long-term predictions of copper canister corrosion under oxic and anoxic conditions (SKB Technical Report TR 94-25). Stockholm, Sweden: Svensk Kärnbränslehantering AB

1993

Wersin, Paul; Bruno, Jordi; Spahiu, Kastriot (1993). Kinetic modelling of bentonite-canister interaction. Implications for Cu, Fe, and Pb corrosion in a repository for spent nuclear fuel (Technical Report 93-16). Stockholm, Sweden: SWEDISH NUCLEAR FUEL AND WASTE MANAGEMENT CO

Van Cappellen, Philippe; Charlet, Laurent; Stumm, Werner; Wersin, Paul (1993). A surface complexation model of the carbonate mineral-aqueous solution interface. Geochimica et cosmochimica acta, 57(15), pp. 3505-3518. Elsevier Science 10.1016/0016-7037(93)90135-J

Zobrist, Jörg; Wersin, Paul; Jaques, Claude; Sigg, Laura; Stumm, Werner (1993). Dry deposition measurements using water as a receptor: A chemical approach. Water, Air, & Soil Pollution, 71(1-2), pp. 111-130. Springer 10.1007/BF00475515

1992

Wanner, Hans; Wersin, Paul; Sierro, Nicolas (1992). Thermodynamic modelling of bentonite-groundwater interaction and implications for near field chemistry in a repository for spent nuclear fuel (Technical Report 92-37). Stockholm, Sweden: SWEDISH NUCLEAR FUEL AND WASTE MANAGEMENT CO

Bruno, Jordi; Stumm, Werner; Wersin, Paul; Brandberg, Frederick (1992). On the influence of carbonate in mineral dissolution: I. The thermodynamics and kinetics of hematite dissolution in bicarbonate solutions at. Geochimica et cosmochimica acta, 56(3), pp. 1139-1147. Elsevier Science 10.1016/0016-7037(92)90051-J

Bruno, Jordi; Wersin, Paul; Stumm, Werner (1992). On the influence of carbonate in mineral dissolution: II. The solubility of FeCO3 (s) at 25°C and 1 atm total pressure. Geochimica et cosmochimica acta, 56(3), pp. 1149-1155. Elsevier Science 10.1016/0016-7037(92)90052-K

Mozley, Peter S.; Wersin, Paul (1992). Isotopic composition of siderite as an indicator of depositional environment. Geology, 20(9), p. 817. Geological Society of America 10.1130/0091-7613(1992)020<0817:ICOSAA>2.3.CO;2

1991

Wersin, Paul; Höhener, Patrick; Giovanoli, Rudolf; Stumm, Werner (1991). Early diagenetic influences on iron transformations in a freshwater lake sediment. Chemical geology, 90(3-4), pp. 233-252. Elsevier 10.1016/0009-2541(91)90102-W

1990

Charlet, Laurent; Wersin, Paul; Stumm, Werner (1990). Surface charge of MnCO3 and FeCO3. Geochimica et cosmochimica acta, 54(8), pp. 2329-2336. Elsevier Science 10.1016/0016-7037(90)90059-T

1989

Wersin, Paul; Charlet, Laurent; Karthein, Rainer; Stumm, Werner (1989). From adsorption to precipitation: Sorption of Mn2+ on FeCO3(s). Geochimica et cosmochimica acta, 53(11), pp. 2787-2796. Elsevier Science 10.1016/0016-7037(89)90156-7

1987

Engi, Martin; Wersin, Paul (1987). Derivation and application of a solution model for calcic garnet. Schweizerische Mineralogische und Petrographische Mitteilungen, 67(1/2), pp. 53-73. Stäubli 10.5169/seals-51587