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Multi-disciplinary geoscientific expedition to Woodfjorden, NW Svalbard: Field sites, methods, and preliminary results

Authors

Senger,  Kim
External Organizations;

Betlem,  Peter
External Organizations;

Helland-Hansen,  Anniken
External Organizations;

Horota,  Rafael Kenji
External Organizations;

/persons/resource/kaempf

Kämpf,  H.
3.2 Organic Geochemistry, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Kontny,  Agnes
External Organizations;

Minakov,  Alexander
External Organizations;

Planke,  Sverre
External Organizations;

Tappe,  Sebastian
External Organizations;

Telmon,  Maria
External Organizations;

Zastrozhnov,  Dmitrii
External Organizations;

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Citation

Senger, K., Betlem, P., Helland-Hansen, A., Horota, R. K., Kämpf, H., Kontny, A., Minakov, A., Planke, S., Tappe, S., Telmon, M., Zastrozhnov, D. (2024): Multi-disciplinary geoscientific expedition to Woodfjorden, NW Svalbard: Field sites, methods, and preliminary results. - Czech Polar Reports, 13, 2, 142-161.
https://doi.org/10.5817/CPR2023-2-12


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025910
Abstract
The Woodfjorden area of northern Spitsbergen (NW Svalbard) offers access to the world’s northernmost onshore thermal springs, extinct Pleistocene alkali basaltic volca- noes and Miocene flood basalts including extensive hyaloclastites. In July 2023, we undertook a 14-day international multi-disciplinary geoscientific expedition to Wood- fjorden-Bockfjorden to investigate the Cenozoic geological evolution of the area. The expedition objectives spanned a wide range of scientific topics from sampling of fluids and gas in the thermal springs to constraining the lithosphere by acquiring magne- totelluric data and sampling volcanic rocks. More specifically, we have 1) conducted gas, fluid and travertine sampling at the thermal springs of Gygrekjelda, Jotunkjeldene and Trollkjeldene, 2) mapped and sampled the Quaternary volcanic centers at Sverrefjel- let and Halvdanpiggen, 3) sampled the Miocene basalts of the Seidfjellet Formation along seven profiles plus the underlying Devonian sedimentary rocks, 4) acquired magnetotelluric data at 12 stations along both coasts of Woodfjorden and Bockfjorden and 5) collected extensive digital geological data (digital outcrop models and photo- spheres) using unmanned aerial vehicles (UAVs; also known as drones). The collected samples are currently being analyzed for, amongst others, petrology, geochemistry and geochronology. In this contribution, we report on the expedition’s background, scientific objectives and present selected preliminary results such as field parameters from the thermal springs (temperature, pH, electrical conductivity), magnetic susceptibility of volcanic rocks and digital outcrop models plus photospheres.