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SSF-Svalbard Science Forum

Igneous complex of Ekmanfjorden: an integrated field, petrological and geochemical study

Tildelt: kr 79 999

The distribution and characteristics of the High Arctic Large Igneous Province is still largely debated by the scientific community. In October this year, there was an AGU Chapman conference dedicated to this topic, and leading Arctic experts concluded that more geochemical data, more reliable ages and a better understanding of how widespread the volcanism is, will be needed to specify the relationship between the igneous complexes that were emplaced during the late Mesozoic. As the dolerites found in Svalbard are relatively seen the most accessible outcrops of the HALIP, this area has been chosen for further studies. HALIP on Svalbard occurs in two main belts, the central Spitsbergen dolerite centre and the eastern Svalbard dolerite belt. During a 2019 field campaign, a team lead by Kim Senger visited some of the localities of the central Spitsbergen dolerites, and it was clear from their observations that the area around Ekmanfjorden needs more detailed mapping to improve the quality of the current geological map, to better understand the intrusions, more samples for geochemistry, geochronology and petrology are necessary. To account for this need, a field campaign is planned for 9 days in summer 2020, from the 31st of August to the 13th of September 2020. The result of this fieldwork will be a MSc thesis in collaboration between Lund University and the University Centre in Svalbard. A collaboration between the two institutions is ideal, since UNIS is located close to the field site and can assist with logistics as well as their expertize in Arctic Geology, while the Geology Department of Lund University has access to modern laboratories where the further analysis can be made. This new data will not only be useful for researchers interested in Svalbard, but for whole the scientific community working in the Arctic, and it will be one step further in the goal to successfully characterize and understand the emplacement of the High Arctic Large Igneous Province.

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SSF-Svalbard Science Forum