Department of Earth Science: Nye registreringer

Viser treff 41-60 av 1033

    • Quantitative seismic interpretation in thin-bedded geology using full-wavefield elastic modelling 

      Tschache, Saskia (Doctoral thesis, 2023-09-28)
      Refleksjonsseismikk brukes til å lage seismiske «bilder» av den øverste delen av jordskorpen, blant annet med tanke på leting etter reservoarer for olje, gass, karbonlagring og geotermisk energi. I tillegg til å gi grunnlag ...

    • Behaviourally modern humans in coastal southern Africa experienced an increasingly continental climate during the transition from Marine Isotope Stage 5 to 4 

      Göktürk, Ozan Mert; Simon, Margit Hildegard; Sobolowski, Stefan Pieter; Zhang, Zhongshi; van der Bilt, Willem Godert Maria; Mørkved, Pål Tore; D’Andrea, William J.; Niekerk, Karen Loise van; Henshilwood, Christopher Stuart; Armitage, Simon James; Jansen, Eystein (Journal article; Peer reviewed, 2023-07-25)
      Unravelling evolution-by-environment interactions on the gut microbiome is particularly relevant considering the unprecedented level of human-driven disruption of the ecological and evolutionary trajectories of species. ...

    • 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 ...

    • Kan biologikunnskap bidra til økt forståelse av komplekse geologiske systemer? 

      Jensen, Marthe Thomine (Master thesis, 2023-06-08)
      Jordsystemet i geologi består av fem delsystemer: geosfæren, atmosfæren, hydrosfæren, kryosfæren, og biosfæren. Til tross for dette blir sistnevnte underkommunisert gjennom geofag-undervisning på vgs-nivå. Jordsystemet ...

    • Seismicity modulation due to hydrological loading in a stable continental region: A case study from the Jektvik swarm sequence in Northern Norway 

      Shiddiqi, Hasbi Ash; Ottemöller, Lars; Rondenay, Stephane; Custódio, Susana; Gahalaut, Vineet K; Yadav, Rajeev K; Halpaap, Felix Julian; Gahalaut, Kalpna (Journal article; Peer reviewed, 2023)
      Seismic swarms have been observed for more than 40 yr along the coast of Nordland, Northern Norway. However, the detailed spatio-temporal evolution and mechanisms of these swarms have not yet been resolved due to the ...

    • The ‘Little Ice Age’ advance of Nigardsbreen, Norway: A cross-disciplinary revision of the chronological framework 

      Gjerde, Marthe; Hoel, Oddmund Løkensgard; Nesje, Atle (Journal article; Peer reviewed, 2023)
      This study presents a cross-disciplinary revision of the Little Ice Age (LIA) advance of Nigardsbreen glacier, an outlet from Jostedalsbreen ice cap in western Norway. The associated glacier foreland is characterised by a ...

    • 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 ...

    • 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 ...

    • 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 ...

    • 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. ...

    • 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 ...

    • An integrated deep learning and object-based image analysis approach for mapping debris- covered glaciers 

      Thomas, Daniel Jack; Robson, Benjamin Aubrey; Racoviteanu, Adina E. (Journal article; Peer reviewed, 2023)
      Evaluating glacial change and the subsequent water stores in high mountains is becoming increasingly necessary, and in order to do this, models need reliable and consistent glacier data. These often come from global ...

    • 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. ...

    • 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 ...

    • Analysis of storm surge events along the Norwegian coast 

      Wolf, Tobias; Outten, Stephen; Mangini, Fabio; Chen, Linling; Nilsen, Jan Even Øie (Journal article; Peer reviewed, 2023-02-08)
      Observed extreme sea levels are caused by a combination of extreme astronomical tide and extreme storm surge, or by an extreme value in one of these variables and a moderate value in the other. We analyzed measurements ...

    • 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 ...

    • Ocean–Ice Sheet Coupling in the Totten Glacier Area, East Antarctica: Analysis of the Feedbacks and Their Response to a Sudden Ocean Warming 

      Van Achter, Guillian; Fichefet, Thierry; Goosse, Hugues; Pelletier, Charles; Haubner, Konstanze; Pattyn, Frank (Journal article; Peer reviewed, 2023-04-01)
      We coupled together high-resolution versions of the ocean–sea ice model NEMO and the ice sheet model BISICLES configured to the Totten Glacier area and ran a series of simulations over the recent past (1995–2014) and under ...

    • 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 ...