Blar i Department of Earth Science på utgivelsesdato

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    • Detection of ice core particles via deep neural networks 

      Maffezzoli, Niccolò; Cook, Eliza; van der Bilt, Willem Godert Maria; Støren, Eivind; Festi, Daniela; Muthreich, Florian; Seddon, Alistair William Robin; Burgay, François; Baccolo, Giovanni; Mygind, Amalie; Petersen, Troels; Spolaor, Andrea; Vascon, Alessio; Pelillo, Marcello; Ferretti, Patrizia; dos Reis, Rafael S.; Simões, Jefferson; Ronen, Yuval; Delmonte, Barbara; Viccaro, Marco; Steffensen, Jørgen Peder; Dahl-Jensen, Dorthe; Nisancioglu, Kerim Hestnes; Brabante, Carlo (Journal article; Peer reviewed, 2023)
      Insoluble particles in ice cores record signatures of past climate parameters like vegetation dynamics, volcanic activity, and aridity. For some of them, the analytical detection relies on intensive bench microscopy ...

    • Revised Minoan eruption volume as benchmark for large volcanic eruptions 

      Karstens, Jens; Preine, Jonas; Crutchley, Gareth; Kutterolf, Steffen; van der Bilt, Willem Godert Maria; Hooft, Emilie; Druitt, Timothy; Schmid, Florian; Cederstrøm, Jan Magne; Hübscher, Christian; Nomikou, Paraskevi; Carey, Steven; Kühn, Michel; Elger, Judith; Berndt, Christian (Journal article; Peer reviewed, 2023)
      Despite their global societal importance, the volumes of large-scale volcanic eruptions remain poorly constrained. Here, we integrate seismic reflection and P-wave tomography datasets with computed tomography-derived ...

    • Imaging of small-scale faults in seismic reflection data: Insights from seismic modelling of faults in outcrop 

      Dimmen, Vilde; Rotevatn, Atle; Lecomte, Isabelle Christine (Journal article; Peer reviewed, 2023)
      Faults with throws that fall below vertical seismic resolution are challenging to identify in reflection seismic datasets. Nevertheless, such small-scale faults may still affect the seismic images, and in this study, we ...

    • Global scale analysis on the extent of river channel belts 

      Nyberg, Björn Johan Emil Burr; Henstra, Gijs Allard; Gawthorpe, Rob; Ravnås, Rodmar; Ahokas, Juha Matti (Journal article; Peer reviewed, 2023)
      Rivers form channel belts that encompass the area of the river channel and its associated levees, bars, splays and overbank landforms. The channel belt is critical for understanding the physical river evolution through ...

    • Unraveling the mechanisms and implications of a stronger mid-Pliocene Atlantic Meridional Overturning Circulation (AMOC) in PlioMIP2 

      Weiffenbach, Julia E.; Baatsen, Michiel L. J.; Dijkstra, Henk A.; Von Der Heydt, Anna S.; Abe-Ouchi, Ayako; Brady, Esther C.; Chan, Wing-Le; Chandan, Deepak; Chandler, Mark A.; Contoux, Camille; Feng, Ran; Guo, Chuncheng; Han, Zixuan; Haywood, Alan M.; Li, Qiang; Li, Xiangyu; Lohmann, Gerrit; Lunt, Daniel J.; Nisancioglu, Kerim Hestnes; Otto-Bliesner, Bette L.; Peltier, W. Richard; Ramstein, Gilles; Sohl, Linda E.; Stepanek, Christian; Tan, Ning; Tindall, Julia C.; Williams, Charles J. R.; Zhang, Qiong; Zhang, Zhongshi (Journal article; Peer reviewed, 2023)
      The mid-Pliocene warm period (3.264–3.025 Ma) is the most recent geological period in which the atmospheric CO2 concentration was approximately equal to the concentration we measure today (ca. 400 ppm). Sea surface temperature ...

    • Impact of icebergs on the seasonal submarine melt of Sermeq Kujalleq 

      Kajanto, Karita; Straneo, Fiammetta; Nisancioglu, Kerim Hestnes (Journal article; Peer reviewed, 2023)
      The role of icebergs in narrow fjords hosting marine-terminating glaciers in Greenland is poorly understood, even though iceberg melt results in a substantial freshwater flux that can exceed the subglacial discharge. ...

    • Paleoenvironmental and diagenetic evolution of the Aptian Pre-Salt succession in Namibe Basin (Onshore Angola) 

      Moragas, Mar; Baqués, Vinyet; Martín-Martín, Juan Diego; Sharp, Ian R.; Lapponi, Fabio; Hunt, David W.; Zeller, Michael; Vergés, Jaume; Messager, Grégoire; Gindre-Chanu, Laurent; Swart, Roger; Machado, Vladimir (Journal article; Peer reviewed, 2023)
      The Aptian Pre-Salt sedimentary succession cropping out in Cangulo palaeovalley onshore Namibe Basin (Angola) was studied by a combination of field and analytical techniques to constrain the sedimentary and diagenetic ...

    • Did the Eurasian ice sheets melt completely in early Marine Isotope Stage 3? New evidence from Norway and a synthesis for Eurasia 

      Mangerud, Jan; Alexanderson, Helena; Birks, Hilary H; Paus, Aage; Perić, Zoran M.; Svendsen, John Inge (Journal article; Peer reviewed, 2023)
      We describe glaci-lacustrine sediments buried under thick tills in Folldalen, south-east Norway, a site located close to the former centre of the Scandinavian Ice Sheet. Thus, the location implies that the ice sheet had ...

    • Multi-proxy evidence of unprecedented hydroclimatic change in a high Arctic proglacial lake: Linnévatnet, Svalbard 

      Lapointe, Francois; Retelle, Michael J.; Bradley, Raymond S.; Farnsworth, Wesley R.; Støren, Eivind; Cook, Timothy; Rosario, Josiane (Journal article; Peer reviewed, 2023)
      Svalbard is at the forefront of sea ice, marine, and terrestrial environmental change in the Arctic and so can be viewed as an example of what may be expected in other high latitude regions influenced by the North Atlantic ...

    • Fluid evolution from extension to compression in the Pyrenean Fold Belt and Basque-Cantabrian Basin: A review 

      Cruset, David; Vergés, Jaume; Muñoz-López, Daniel; Moragas, Mar; Cantarero, Irene; Trave, Anna (Journal article; Peer reviewed, 2023)
      We propose a review to discuss the large number of studies dealing with the fluid history in extensional and compressional sedimentary basins that evolved along the Iberian-Eurasian plate boundary during the full ...

    • Shallow-water hydrothermal venting linked to the Palaeocene–Eocene Thermal Maximum 

      Berndt, Christian; Planke, Sverre; Alvarez Zarikian, Carlos A.; Frieling, Joost; Jones, Morgan Thomas; Millett, John M.; Brinkhuis, Henk; Bünz, Stefan; Svensen, Henrik Hovland; Longman, Jack; Scherer, Reed P.; Karstens, Jens; Manton, Ben; Nelissen, Mei; Reed, Brandon; Faleide, Jan Inge; Huismans, Ritske Sipke; Agarwal, Amar; Andrews, Graham D.M.; Betlem, Peter; Bhattacharya, Joyeeta; Chatterjee, Sayantani; Christopoulou, Marialena; Clementi, Vincent J.; Ferré, Eric C.; Filina, Irina Y.; Guo, Pengyuan; Harper, Dustin T.; Lambart, Sarah; Mohn, Geoffroy; Nakaoka, Reina; Tegner, Christian; Varela, Natalia; Wang, Mengyuan; Xu, Weimu; Yager, Stacy L. (Journal article; Peer reviewed, 2023)
      The Palaeocene–Eocene Thermal Maximum (PETM) was a global warming event of 5–6 °C around 56 million years ago caused by input of carbon into the ocean and atmosphere. Hydrothermal venting of greenhouse gases produced in ...

    • Volcanic evolution of an ultraslow-spreading ridge 

      Stubseid, Håvard Hallås; Bjerga, Anders; Haflidason, Haflidi; Pedersen, Leif-Erik Rydland; Pedersen, Rolf B. (Journal article; Peer reviewed, 2023)
      Nearly 30% of ocean crust forms at mid-ocean ridges where the spreading rate is less than 20 mm per year. According to the seafloor spreading paradigm, oceanic crust forms along a narrow axial zone and is transported away ...

    • Buoyancy forcing: A key driver of northern North Atlantic sea surface temperature variability across multiple timescales 

      Risebrobakken, Bjørg; Jensen, Mari Fjalstad; Langehaug, Helene R.; Eldevik, Tor; Sandø, Anne Britt; Li, Camille; Born, Andreas; McClymont, Erin Louise; Salzmann, Ulrich; De Schepper, Stijn (Journal article; Peer reviewed, 2023)
      Analyses of observational data (from year 1870 AD) show that sea surface temperature (SST) anomalies along the pathway of Atlantic Water transport in the North Atlantic, the Norwegian Sea and the Iceland Sea are spatially ...

    • The Moho Architecture and Its Role for Isostasy—Insights From the Lofoten-Vesterålen Rifted Margin, Norway 

      Schiffer, Christian; Rondenay, Stephane; Ottemöller, Lars; Drottning, Anne Furubotten (Journal article; Peer reviewed, 2023)
      The crustal structure of the Nordland and Troms region, Norway, has received growing scientific attention because (a) the region is one of the most seismically active areas of mainland Norway, and (b) there are differing ...

    • West Spitsbergen fold and thrust belt: A digital educational data package for teaching structural geology 

      Horota, Rafael Kenji; Senger, Kim; Rodes, Nil; Betlem, Peter; Smyrak-Sikora, Aleksandra; Jonassen, Marius Opsanger; Kramer, Daniel; Braathen, Alvar (Journal article; Peer reviewed, 2023)
      The discipline of structural geology is taking an advantage of compiling observations from multiple field sites to comprehend the bigger picture and constrain the region's geological evolution. In this study we demonstrate ...

    • North Atlantic surface ocean warming and salinization in response to middle Eocene greenhouse warming 

      van der Ploeg, Robin; Cramwinckel, Margot J.; Kocken, Ilja J.; Leutert, Thomas Jan; Bohaty, Steven M.; Fokkema, Chris D.; Hull, Pincelli M.; Meckler, Anna Nele; Middelburg, Jack J.; Müller, Inigo A.; Penman, Donald E.; Peterse, Francien; Reichart, Gert-Jan; Sexton, Philip F.; Vahlenkamp, Maximilian; De Vleeschouwer, David; Wilson, Paul A.; Ziegler, Martin; Sluijs, Appy (Journal article; Peer reviewed, 2023)
      Quantitative reconstructions of hydrological change during ancient greenhouse warming events provide valuable insight into warmer-than-modern hydrological cycles but are limited by paleoclimate proxy uncertainties. We ...

    • Atlantic circulation changes across a stadial-interstadial transition 

      Waelbroeck, Claire; Tjiputra, Jerry; Guo, Chuncheng; Nisancioglu, Kerim Hestnes; Jansen, Eystein; Vazquez Riveiros, Natalia; Toucanne, Samuel; Eynaud, Frederique; Rossignol, Linda; Dewilde, Fabien; Marchès, Elodie; Lebreiro, Susana; Nave, Silvia (Journal article; Peer reviewed, 2023)
      We combine consistently dated benthic carbon isotopic records distributed over the entire Atlantic Ocean with numerical simulations performed by a glacial configuration of the Norwegian Earth System Model with active ocean ...

    • A continent-wide detailed geological map dataset of Antarctica 

      Cox, Simon C.; Lyttle, Belinda Smith; Elkind, Samuel; Siddoway, Christine S.; Morin, Paul; Capponi, Giovanni; Abu-Alam, Tamer; Ballinger, Matilda; Bamber, Lauren; Kitchener, Brett; Lelli, Luigi; Mawson, Jasmine; Millikin, Alexie; Dal Seno, Nicola; Whitburn, Louis; White, Tristan; Burton-Johnson, Alex; Crispini, Laura; Elliot, David; Elvevold, Synnøve; Goodge, John; Halpin, Jacqueline; Jacobs, Joachim; Martin, Adam P.; Mikhalsky, Eugene; Morgan, Fraser; Phil, Scadden; Smellie, John; Wilson, Gary (Journal article; Peer reviewed, 2023)
      A dataset to describe exposed bedrock and surficial geology of Antarctica has been constructed by the GeoMAP Action Group of the Scientific Committee on Antarctic Research (SCAR) and GNS Science. Our group captured existing ...

    • Deep-water sand transfer by hyperpycnal flows, the Eocene of Spitsbergen, Arctic Norway 

      Grundvåg, Sten-Andreas; Helland-Hansen, William; Johannessen, Erik P.; Eggenhuisen, Joris T.; Pohl, Florian; Spychala, Yvonne T. (Journal article; Peer reviewed, 2023)
      Flood-generated hyperpycnal flows are dense, sediment-laden, turbulent flows that can form long-lived, bottom-hugging turbidity currents, which undoubtedly transport large volumes of fine-grained sediments into the ocean. ...

    • Provenance and transport of supraglacial debris revealed by variations in debris geochemistry on Khumbu Glacier, Nepal Himalaya 

      Kirkbride, Martin P.; Sherriff, Sophie C.; Rowan, Ann Victoria; Egholm, David L.; Quincey, Duncan J.; Miles, Evan; Hubbard, Bryn; Miles, Katie (Journal article; Peer reviewed, 2023)
      The origin of supraglacial debris covers is often conceptualised as the formation of a surface lag by melt-out of englacial debris from slow-moving ice, where complexity arises from feedback between debris thickness and ...