Publications

Journal Articles

Rothwell, K. A., ThomasArrigo, L. K., Kaegi, R., Kretzschmar, R. (2024) Low molecular weight organic acids stabilise siderite against oxidation and influence the composition of iron (oxyhydr)oxide oxidation products. Environ. Sci. Process. Impacts. external page Full text
Lefebvre, P., Grigg, A. R. C., Kretzschmar, R. (2024) Geochemical decoupling of iron and zinc during transformation of Zn-bearing ferrihydrite in reducing sediments. Environ. Sci. Technol. 58, 45, 20224–20234. external page Full text
Kretzschmar, R. (2024) Mineral transformation in action. EU Research 39, 32-34. external page Full text
Grigg, A. R. C., Wisawapipat, W., Barmettler, K., Schulz, K., Notini, L., ThomasArrigo, L. K., Kretzschmar, R. (2024) Stability and transformation of jarosite and Al-substituted jarosite in an acid sulfate paddy soil under laboratory and field conditions. Geochim. Cosmochim. Acta. 382, 128–141. external page Full text
ThomasArrigo, L. K., Notini, L., Vontobel, S., Bouchet, S., Nydegger, T., Kretzschmar, R. (2024) Emerging investigator series: Coprecipitation with glucuronic acid limits reductive dissolution and transformation of ferrihydrite in an anoxic soil. Env. Sci. Process. Impacts. 26, 1489–1502 external page Full text
Schulz, K., Wisawapipat, W., Barmettler, K., Grigg, A. R. C., Kubeneck, L. J., Notini, L., ThomasArrigo, L. K., Kretzschmar, R. (2024) Iron oxyhydroxide transformation in a flooded rice paddy field and the effect of adsorbed phosphate. Environ. Sci. Technol. 58(24), 10601–10610 external page Full text
Grigg, A. R. C., Notini, L., Kaegi, R., ThomasArrigo, L. K., and Kretzschmar, R. (2024), Aluminium substitution affects jarosite transformation to iron oxyhydroxides in the presence of aqueous Fe(II). Geochim. Cosmochim. Acta. 374, 72−84 external page Full text
Kubeneck, L. J., Notini, L., Rothwell, K. A., Fantappiè, G., Huthwelker, T., ThomasArrigo, L. K., Kretzschmar, R. (2024) Transformation of vivianite in intertidal sediments with contrasting sulfide conditions. Geochim. Cosmochim. Acta. 370, 173−187. external page Full text
Grigg, A.R.C, Notini, L., Kaegi, R., ThomasArrigo, L. K., Kretzschmar, R. (2024) Structural effects of aluminium and iron occupancy in minerals of the jarosite-alunite solid solution. ACS Earth Space Chem. 8(2), 194−206. external page Full text
Schulz, K. Notini, L., Grigg, A. R. C., Kubeneck, L. J., Wisawapipat, W., ThomasArrigo, L. K., Kretzschmar, R. (2023) Contact with soil impacts ferrihydrite and lepidocrocite transformations during redox cycling in a paddy soil. Environ Sci. Process. Impacts. 25, 1945−1961 external page Full text
Notini, L., Schulz, K., Kubeneck, L. J., Grigg, A. R. C., Rothwell, K. A., Fantappiè, G., ThomasArrigo, L. K., and Kretzschmar, R. (2023) A new approach for investigating iron mineral transformations in soils and sediments using ⁵⁷Fe-labeled minerals and ⁵⁷Fe Mössbauer spectroscopy. Environ. Sci. Technol. 57(27), 10008−10018. external page Full text
ThomasArrigo, L. K., Vontobel, S., Notini, L., Nydegger. (2023) Coprecipitation with Ferrihydrite Inhibits Mineralization of Glucuronic Acid in an Anoxic Soil. Environ. Sci. Technol. 57(25), 9204-9213. external page Full text
Kubeneck, L. J., ThomasArrigo, L. K., Rothwell, K. A., Kaegi, R. and Kretzschmar, R. (2023) Competitive incorporation of Mn and Mg in vivianite at varying salinity and effects on crystal structure and morphology. Geochim. Cosmochim. Acta. 346, 231-244. external page Full text
ThomasArrigo, L. K. and Kretzschmar, R. (2022) Iron speciation changes and mobilization of colloids during redox cycling in Fe-rich, Icelandic peat soils. Geoderma. external page Full text
Grigg, A. R. C., ThomasArrigo, L. K., Schulz, K., Rothwell, K. A., Kaegi, R., and Kretzschmar, R. (2022) Ferrihydrite transformations in flooded paddy soils: rates, pathways, and product spatial distributions. Environ. Sci. Process Impacts. 24, 1867–1882. external page Full text
Notini, L., ThomasArrigo, L. K., Kaegi, R., and Kretzschmar, R. (2022) Coexisting Goethite Promotes Fe(II)-Catalyzed Transformation of Ferrihydrite to Goethite. Environ. Sci. Technol. 56(17), 12723–12733. external page Full text
Schulz, K., ThomasArrigo, L. K., Kaegi, R., and Kretzschmar, R. (2022) Stabilization of Ferrihydrite and Lepidocrocite by Silicate during Fe(II)-Catalyzed Mineral Transformation: Impact on Particle Morphology and Silicate Distribution. Environ. Sci. Technol. 56(9), 5929–5938 external page Full Text
ThomasArrigo, L. K., Notini, L., Shuster, J., Nydegger, T., Vontobel, S., Fischer, S., Kappler, A. and Kretzschmar, R. (2021) Mineral characterization and composition of Fe-rich flocs from wetlands of Iceland: Implications for Fe, C and trace element export. Sci. Total Environ. 816, 151567. external page Full text
Etique, M., Bouchet, S., Byrne, J. M., ThomasArrigo, L. K., Kaegi, R., and Kretzschmar, R. (2021): Mercury reduction by nanoparticulate vivianite. Environ. Sci. Technol. 55(5) pp. 3399–3407 external page Full Text
ThomasArrigo, L. K., Bouchet, S., Kaegi, R. and Kretzschmar, R. (2020): Organic matter influences transformation products of ferrihydrite exposed to sulfide. Environ. Sci: Nano. 7: 3405–3418 external page Full text

Conference presentations

ThomasArrigo, L.K. Carbon dynamics in Icelandic wetlands: the role of redox-active minerals. Swiss Geoscience Meeting 2024. November 8-9, Basel, Switzerland (invited keynote presentation)
Lefebvre, P., Grigg, A.R.C., Kretzschmar, R. The geochemical behavior of zinc is decoupled from iron during the mineral transformation of Zn-bearing ferrihydrite in reducing sediments. Swiss Geoscience Meeting 2024, November 8-9, Basel, Switzerland.
Lefebvre, P., Grigg, A.R.C., Kretzschmar, R. Changes in speciation and spatial distribution of iron and zinc during mineral transformation of Zn-bearing ferrihydrite in sediments. Goldschmidt 2024 Conference, August 18-23.

Notini L., Kubeneck L.J., ThomasArrigo L.K., Schulz K, Fantappiè G. Rothwell K.A., Barmettler K., Wisawapipat W., Grigg A.R.C., Kretzschmar R.: Role of Coexisting Goethite in Ferrihydrite Transformation: Field Study. Swiss Geoscience Meeting 2023. November 17-18, Mendrisio, Switzerland.
Grigg A.R.C., ThomasArrigo L.K., Notini L., Schulz K., Kaegi R., Barmettler K., Wisawapipat, W., Kretzschmar, R.: Transformation of jarosite and Al-substituted jarosite in flooded acid sulfate soil. Swiss Geoscience Meeting 2023. November 17-18, Mendrisio, Switzerland.
Schulz, K., Wisawapipat, W., Barmettler, K., Grigg, A. R. C., Kubeneck, L. J., Notini, L., ThomasArrigo, L. K., and Kretzschmar, R. (2024): Iron (oxyhydr-)oxide dynamics in a flooded rice paddy field and the effect of adsorbed phosphate. Jahrestagung der Deutschen Bodenkundlichen Gesellschaft 2023. September 2-8, Halle, Germany.
ThomasArrigo L.K.,: Mineral protection of soil organic carbon in Icelandic wetland soils. Iron Biogeochemistry Workshop 2023, July 30 - August 3, 2023, Lech, Austria.
Kretzschmar R., Schulz K., Grigg A.R.C., Kubeneck, L.J., Notini L., Rothwell K.A., ThomasArrigo L.K.: Studying soil iron mineral transformations in-situ: Research needs and new experimental approach. Iron Biogeochemistry Workshop, July 30 - August 3, 2023, Lech, Austria.
Notini L., Kubeneck L.J., ThomasArrigo L.K., Schulz K, Fantappiè G. Rothwell K.A., Barmettler K., Wisawapipat W., Grigg A.R.C., Kretzschmar R.: In-situ ferrihydrite transformation in redox affected environments across the globe: influence of geochemical conditions and coexisting minerals. Iron Biogeochemistry Workshop, July 30 - August 3, 2023, Lech, Austria.
Rothwell, K. A., Lefebvre, P., Grigg, A. R., Gund, C., Barmettler, K., Obradovic, N., Sander, M., Neumann, A. & Kretzschmar, R. The redox reactivity of Fe-bearing clay minerals: From lab to field scales. Fe Biogeochemistry Workshop, July 30 - August 3, 2023, Lech, Austria.
Notini L., Schulz K., Kubeneck L.J., Grigg A.R.C., Rothwell K.A., Fantappiè G., ThomasArrigo L.K., Kretzschmar R.: Investigating iron mineral transformations in soils and sediments using 57Fe-labeled minerals and 57Fe Mössbauer spectroscopy. Goldschmidt2023, July 9-14, Lyon, France.
Grigg, A.R.C., Schulz, K., Barmettler, K., Wisawapipat, W., Notini, L, ThomasArrigo, L. K., Kretzschmar, R.: Stability and transformation of (Al-)jarosite in acid-sulfate paddy soils: A field study. Goldschmidt 2023, 9-14 July 2023, Lyon, France.
Kubeneck L.J., Notini L., Rothwell K.A., ThomasArrigo L.K., Schulz K., Fantappiè G., Huthwelker T., Kretzschmar R.: Unravelling vivianite formation in-situ in intertidal sediments: The role of P-adsorbed ferrihydrite as a precursor. Goldschmidt2023, July 9-14, Lyon, France.
Rothwell, K. A., Lefebvre, P., Grigg, A. R., Gund, C., Barmettler, K., Obradovic, N., & Kretzschmar, R. The redox reactivity of Fe-bearing clay minerals and formation of reactive precipitates: A field study. Goldschmidt2023, July 9-14, Lyon, France.
Grigg, A.R.C., ThomasArrigo, L.K., Notini, L., Schulz, K., Kaegi, R., Barmettler, K., Wisawapipat, W., Kretzschmar, R.: Stability of jarosite in acid sulfate soil from Central Thailand. 9th International Acid Sulfate Soils Conference, March 26-30, 2023, Adelaide, Australia.
Rothwell, K. A., Lefebvre, P., Grigg, A. R. C., Gund, C., Barmettler, K., Obradovic, N., Sander, M., Kretzschmar, R. The redox reactivity of Fe-bearing clay minerals incubated in intertidal flat sediments. Clay Minerals Group Research in Progress Meeting 2023, May 18, 2023, Leeds, United Kingdom.

Schulz, K, Grigg, A.R.C., Notini, L., ThomasArrigo, L.K., Wisawapipat, W. and Kretzschmar, R. (2022), In-situ iron oxyhydroxide transformations induced by redox fluctuations in a rice paddy soil – examining the effect of direct contact with the soil matrix. DBG Conference, Trier, September 2022.
Grigg, A.R.C., Notini, L., Kaegi, R., ThomasArrigo, L.K. and Kretzschmar, R. (2022), Stability of Al-substituted jarosite in the presence of Fe(II). EGU conference, Vienna, May 2022.
Notini de Andrade, L., ThomasArrigo, L. K., Kretzschmar, R. (2021) Co-existing iron minerals influence ferrihydrite Fe(II)-catalyzed transformation pathways. Presented at the 262^nd ACS National Meeting in Atlanta
Kubeneck L.J., ThomasArrigo L.K., Rothwell K.A., Kaegi R., Kretzschmar R.: Effect of competitive incorporation of Mn2+ and Mg2+ at varying salinity on the crystal structure of the ferrous phosphate mineral vivianite. ACS Fall 2022, August 21-25, Chicago, USA.

Notini, L., ThomasArrigo L.K., Kretzschmar R.: Co-existing iron minerals influence ferrihydrite Fe(II)-catalyzed transformation pathways. ACS National Meeting, August 22-26, 2021, Atlanta, USA.
Kubeneck L.J., ThomasArrigo L.K., Rothwell K.A., Kaegi R., Kretzschmar R.: Competitive incorporation of Mn2+ and Mg2+ in the ferrous phosphate mineral vivianite. Goldschmidt2021, July 4-9, 2021. Online
Grigg, A.R.C., Schulz, K., Rothwell, K.A., Kaegi, R., ThomasArrigo, L.K. and Kretzschmar, R.: Ferrihydrite transformation in flooded paddy soil microcosms. Goldschmidt2021, July 4-9, 2021.
Schulz K., ThomasArrigo L.K., Kaegi R., Kretzschmar R.: Stabilization of ferrihydrite and lepidocrocite by silica during Fe(II)-catalyzed transformation and the impacts on mineral transformation products. Goldschmidt2021, July 4-9.
Rothwell, K. A., ThomasArrigo L.K., Kaegi, Ralf, and Kretzschmar, Ruben. Siderite Oxidation in the Presence of Organic Ligands. Environmental Mineralogy Group Research in Progress Meeting 2021, June 14, 2021, (poster presentation, online)

Kretzschmar R.: The role of minerals in trace element speciation and cycling in the environment. The 15th International Conference on Biogeochemistry of Trace Elements - ICOBTE 2019, May 5-9, 2019, Nanjing, China. (invited plenary talk)