Cold Seeps Extreme24 Expedition Report

Authors

DOI:

https://doi.org/10.7557/7.7986

Keywords:

Cold seeps, Methane, Barents Sea, Gas hydrate, Mud volcano, Carbonate, Craters, Biogeochemical processes, Deep-Sea Biology, DNA, Seafloor imaging, Education, Outreach, co-creation and participation, Microbiology, Meiofauna, Macrofauna

Abstract

The Cold Seeps Extreme24 Expedition was the second leg of two expeditions, which form part of the University of Tromsø’s Extreme 24 project.

The expedition focused on cold seeps sites characterised by methane emissions in several localities in the Barents Sea. The expedition is a research initiative (PI G. Panieri) hosted by the Department of Geosciences, part of the Faculty of Science and Technology at UiT, the Arctic University of Norway, situated in Tromsø, and involved partners from different research institutes and universities around the world and used the REV Ocean Remotely Operated Vehicle (ROV) Aurora.

The expedition has been developed by leveraging the extensive knowledge gained from two significant projects funded by the Norwegian Research Council: CAGE (Centre for Arctic Gas Hydrate, Environment and Climate) and AKMA (Advancing Knowledge of Methane in the Arctic), both hosted at the Department of Geosciences at UiT. These projects have provided fundamental understandings to define the objectives and methodologies used during the EXTREME24 expedition, aiming to broaden our understanding of Arctic extreme environments.

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References

Andreassen, K., Hogstad, K., & Berteussen, K. A. (1990). Gas hydrate in the southern Barents Sea, indicated by a shallow seismic anomaly. First Break, 8(6). https://doi.org/10.3997/1365-2397.1990012 https://doi.org/10.3997/1365-2397.1990012

Butt, F. A., Elverhøi, A., Solheim, A., & Forsberg, C. F. (2000). Deciphering Late Cenozoic development of the western Svalbard Margin from ODP Site 986 results. Marine Geology, 169(3-4), 373–390. https://doi.org/10.1016/s0025-3227(00)00088-8 https://doi.org/10.1016/S0025-3227(00)00088-8

Cesbron, F., Metzger, E., Launeau, P., Deflandre, B., Delgard, M.-L., Thibault de Chanvalon, A., Geslin, E., Anschutz, P., & Jézéquel, D. (2014). Simultaneous 2D Imaging of Dissolved Iron and Reactive Phosphorus in Sediment Porewaters by Thin-Film and Hyperspectral Methods. Environmental Science & Technology, 48(5), 2816–2826. https://doi.org/10.1021/es404724r https://doi.org/10.1021/es404724r

Faleide, J. I., Solheim, A., Fiedler, A., Hjelstuen, B. O., Andersen, E. S., & Vanneste, K. (1996). Late Cenozoic evolution of the western Barents Sea-Svalbard continental margin. Global and Planetary Change, 12(1-4), 53–74. https://doi.org/10.1016/0921-8181(95)00012-7 https://doi.org/10.1016/0921-8181(95)00012-7

Fiedler, A., & Faleide, J. I. (1996). Cenozoic sedimentation along the southwestern Barents Sea margin in relation to uplift and erosion of the shelf. Global and Planetary Change, 12(1-4), 75–93. https://doi.org/10.1016/0921-8181(95)00013-5 https://doi.org/10.1016/0921-8181(95)00013-5

Hjelstuen, B. O., Eldholm, O., & Faleide, J. I. (2007). Recurrent Pleistocene mega-failures on the SW Barents Sea margin. Earth and Planetary Science Letters, 258(3-4), 605–618. https://doi.org/10.1016/j.epsl.2007.04.025 https://doi.org/10.1016/j.epsl.2007.04.025

Knies, J., Matthiessen, J., Vogt, C., Laberg, J. S., Hjelstuen, B. O., Smelror, M., Larsen, E., Andreassen, K., Eidvin, T., & Vorren, T. O. (2009). The Plio-Pleistocene glaciation of the Barents Sea–Svalbard region: a new model based on revised chronostratigraphy. Quaternary Science Reviews, 28(9-10), 812–829. https://doi.org/10.1016/j.quascirev.2008.12.002 https://doi.org/10.1016/j.quascirev.2008.12.002

Kuvaas, B., & Kristoffersen, Y. (1996). Mass movements in glaciomarine sediments on the Barents Sea continental slope. Global and Planetary Change, 12(1-4), 287–307. https://doi.org/10.1016/0921-8181(95)00025-9 https://doi.org/10.1016/0921-8181(95)00025-9

Laberg, J. S., Andreassen, K., Knies, J., Vorren, T. O., & Winsborrow, M. (2010). Late Pliocene-Pleistocene development of the Barents Sea Ice Sheet. Geology, 38(2), 107–110. https://doi.org/10.1130/g30193.1 https://doi.org/10.1130/G30193.1

Metzger, E., Thibault, A., Cesbron, F., Barbe, A., Launeau, P., Jézéquel, D., & Mouret, A. (2016). Simultaneous Nitrite/Nitrate Imagery at Millimeter Scale through the Water–Sediment Interface. Environmental Science & Technology, 50(15), 8188–8195. https://doi.org/10.1021/acs.est.6b00187 https://doi.org/10.1021/acs.est.6b00187

Metzger, E., Viollier, E., Simonucci, C., Prévot, F., Langlet, D., & Jézéquel, D. (2013). Millimeter-scale alkalinity measurement in marine sediment using DET probes and colorimetric determination. Water Research, 47(15), 5575–5583. https://doi.org/10.1016/j.watres.2013.06.038 https://doi.org/10.1016/j.watres.2013.06.038

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Published

2025-01-15

How to Cite

Panieri, G., Barrenechea Angeles, I., Argentino, C., Bednarek, G., Brickell, J., Caneva, A., Colson, B., Delpech, L.-M., Eilertsen, M. H., Farquhar, L., Garandel, O., Gjesdal, T., Guilhermic, C., Hemmateenejad, F., Hislop, L., Kalenitchenko, D., Kjær, M., Lunde, T.-A., Mattingsdal, R., O’brien, M., Olsen, B. R., Øvstaas, J., Nyvoll, J. B., Pawlowski, J., Redaelli, C., Rodrigues, P. F., Rolley, L., Savini, A., Sørås, O., Vågenes, S., Vågenes, P., Wang, T., Wieman, S., & Yan, Y. T. (2025). Cold Seeps Extreme24 Expedition Report. Septentrio Reports, (1). https://doi.org/10.7557/7.7986