Sigga’s Greenland article
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April 4, 2025
in IKKA project, Publication, Science Projects

Sigga’s Greenland article

Great news! We finally managed to get the article published that covers the work that Sigríður María Aðalsteinsdóttir (Sigga) did for her MSc thesis at the University of Iceland. She joined us on fieldwork to Greenland in 2019 and sampled rocks from the Grønnedal-Íka alkaline complex during that field season. Those rocks were used for petrological studies, and the results of the petrological studies were used in geochemical modelling where she showed that you can dissolve the nepheline syenite and carbonatite rocks of the Grønnedal-Íka alkaline complex with pH 5.6 groundwater and create the sodium carbonate solution of pH 10 that seeps up through the seabed of Ikka Fjord and precipitates ikaite and makes columns. The article is entitled “Petrological Studies and Geochemical Modelling of Water–Rock Interactions in the Grønnedal-Íka Alkaline Complex Generating Ikaite Deposition in Ikka Fjord, SW Greenland”. It was published in MDPI Minerals and can be found here: https://www.mdpi.com/2075-163X/15/4/373

Photo: Gabrielle. Sigga and Paul Seaman onboard F360 HVIDBJØRNEN who helped us during the fieldwork in 2019.