Now showing items 41-60 of 599

    • Overprinting translational domains in passive margin salt basins: insights from analogue modelling 

      Ge, Zhiyuan; Rosenau, Matthias; Warsitzka, Michael; Gawthorpe, Rob (European Geosciences Union, 2019-08-02)
      Current models of gravitational tectonics on the structural styles of salt-influenced passive margins typically depict domains of upslope extension and corresponding downslope contraction separated by a mid-slope domain ...
      Journal article
    • Observing system evaluation based on ocean data assimilation and prediction systems: On-going challenges and future vision for designing/supporting ocean observational networks 

      Fujii, Yosuke; Rémy, Elisabeth; Hao, Zuo; Oke, Peter; Halliwell, George; Gasparin, Florent; Benkiran, Mounir; Loose, Nora; Cummings, James; Xie, Jiping; Xue, Yan; Masuda, Shuhei; Smith, Gregory C.; Balmaseda, Magdalena; Germineaud, Cyril; Lea, Daniel J.; Larnicol, Gilles; Bertino, Laurent; Bonaduce, Antonio; Brasseur, Pierre; Donion, Craig; Heimbach, Patrick; Kim, YoungHo; Kourafalou, Villy; Le Traon, Pierre-Yves; Martin, Matthew; Paturi, Shastri; Tranchant, Benoit; Usui, Norihisa (Frontiers, 2019-07-29)
      This paper summarizes recent efforts on Observing System Evaluation (OS-Eval) by the Ocean Data Assimilation and Prediction (ODAP) communities such as GODAE OceanView and CLIVAR-GSOP. It provides some examples of existing ...
      Journal article
    • The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database 

      Hollis, Christopher J.; Jones, Tom Dunkley; Anagnostou, Eleni; Bijl, Peter K.; Cramwinckel, Margot J.; Cui, Ying; Dickens, Gerald R.; Edgar, Kirsty M.; Eley, Yvette; Evans, David; Foster, Gavin L.; Frieling, Joost; Inglis, Gordon N.; Kennedy, Elizabeth M.; Kozdon, Reinhard; Lauretano, Vittoria; Lear, Caroline H.; Littler, Kate; Lourens, Lucas; Meckler, Anna Nele; Naafs, B. David A.; Pälike, Heiko; Pancost, Richard D.; Pearson, Paul N.; Röhl, Ursula; Royer, Dana L.; Salzmann, Ulrich; Schubert, Brian A.; Seebeck, Hannu; Sluijs, Appy; Speijer, Robert P.; Stassen, Peter; Tierney, Jessica; Tripati, Aradhna; Wade, Bridget; Westerhold, Thomas; Witkowski, Caitlyn; Zachos, James C.; Zhang, Yi Ge; Huber, Matthew; Lunt, Daniel J. (Copernicus Publications, 2019-07-25)
      The early Eocene (56 to 48 million years ago) is inferred to have been the most recent time that Earth's atmospheric CO2 concentrations exceeded 1000 ppm. Global mean temperatures were also substantially warmer than those ...
      Journal article
    • Liverpool Land Basement High, Greenland: Visualising inputs for fractured crystalline basement reservoir models 

      Banks, Graham; Bernstein, Stefan; Salehi, Sara; Guarnieri, Pierpaolo; Bird, Dennis; Hamblett, Catherine; Peacock, David; Foster, Jonathan (GEUS, 2019-07-22)
      Basement highs are large structural features, commonly buried in sedimentary basins (Busby & Azor 2012). They are of interest for natural resources exploration and research because of their ability to influence migration ...
      Journal article
    • Sedimentology and palynology of the Lower Cretaceous succession of central Spitsbergen: integration of subsurface and outcrop data 

      Grundvåg, Sten-Andreas; Jelby, Mads Engholm; Śliwińska, Kasia Kamila; Nøhr-Hansen, Henrik; Aadland, Tore; Sandvik, Sara Elvelund; Tennvassås, Ingrid; Engen, Thea Marie; Olaussen, Snorre (Norsk Geologisk Forening, 2019-06-27)
      The Lower Cretaceous succession in Svalbard is commonly considered as an important analogue to age-equivalent strata on the Barents Shelf which are sporadically targeted by exploration wells. In this study, the stratigraphic ...
      Journal article
    • The potential of sedimentary ancient DNA for reconstructingpast sea ice evolution 

      De Schepper, Stijn; Ray, Jessica Louise; Skaar, Katrine Sandnes; Sadatzki, Henrik; Ijaz, Umer Zeeshan; Stein, Ruediger; Larsen, Aud (Springer Nature, 2019-06-24)
      Sea ice is a crucial component of the Arctic climate system, yet the tools to document the evolution of sea ice conditions onhistorical and geological time scales are few and have limitations. Such records are essential ...
      Journal article
    • Hydrography in the Nordic Seas During Dansgaard-Oeschger Events 8-5 

      Sessford, Evangeline (The University of Bergen, 2019-06-14)
      The modern rapidity of Arctic sea ice loss and rise in Arctic air and ocean temperatures is pushing research to understand mechanisms for abrupt climate fluctuations. Resolving the mechanisms of past abrupt changes is a ...
      Doctoral thesis
    • Design of the subsurface observatory at Surtsey volcano, Iceland 

      Türke, Andreas; Jackson, Marie D; Bach, Wolfgang; Kahl, Wolf-Achim; Grzybowski, Brian; Marshall, Beau; Gudmundsson, Magnus T.; Jørgensen, Steffen Leth (Copernicus, 2019-06-12)
      Surtsey, the youngest of the islands of Vestmannaeyjar, is an oceanic volcano created by explosive basaltic eruptions during 1963–1967 off the southern coast of Iceland. The subsurface deposits of the volcano were first ...
      Journal article
    • Generation of intermediate-depth earthquakes and the fate of subduction fluids : Insights from mantle wedge seismicity and case studies in the Western Hellenic subduction zone 

      Halpaap, Felix (The University of Bergen, 2019-06-07)
      The occurrence of intermediate depth earthquakes at 50-300 km depth in subduction zones is puzzling, because high temperatures and pressures at these depths do not allow standard brittle failure. Instead, two main candidate ...
      Doctoral thesis
    • Fault core thickness: Insights from siliciclastic and carbonate rocks 

      Torabi, Anita; Johannessen, Magnus Ueland; Ellingsen, Tor Saltnes Skram (Hindawi, 2019-06-02)
      Fault core accommodates intense deformation in the form of slip surfaces and fault rocks such as fault gouge, cataclasite, breccia, lenses, shale smear, and diagenetic features. The complexity and variation in fault core ...
      Journal article
    • Ice-flow patterns and precise timing of ice sheet retreat across a dissected fjord landscape in western Norway 

      Mangerud, Jan; Hughes, Anna L.C.; Sæle, Tone Herfindal; Svendsen, John-Inge (Elsevier, 2019-06)
      We reconstruct patterns of ice flow and retreat of the southwestern Scandinavian Ice Sheet, from 2900 field observations of glacial striae and elevation measurements of 60 ice-marginal-deltas from a high-resolution LiDAR ...
      Journal article
    • 3-D seismic images of an extensive igneous sill in the lower crust 

      Wrona, Thilo; Magee, Craig; Fossen, Haakon; Gawthorpe, Rob; Bell, Rebecca E.; Jackson, Christopher Aiden Lee; Faleide, Jan Inge (Geological Society of America, 2019-05-31)
      When continents rift, magmatism can produce large volumes of melt that migrate upwards from deep below the Earth’s surface. To understand how magmatism impacts rifting, it is critical to understand how much melt is generated ...
      Journal article
    • Studier av den brå overgangen til "den lille istid" i havområdet nord for island 

      Bårdsnes, Siv Tone (The University of Bergen, 2019-05-03)
      De siste tiårenes forskning tyder på at endringer i havstrømmene nord for Island har en nær sammenheng med brå klimaendringer i den nordiske region. Selv om Island ligger sentralt til i det nord-atlantiske klimasystemet ...
      Master thesis
    • Causes of bias and uncertainty in fracture network analysis 

      Peacock, David; Sanderson, David J.; Bastesen, Eivind; Rotevatn, Atle; Storstein, Tor H (Norsk Geologisk Forening, 2019-04-24)
      Fault and fracture networks are analysed to determine the deformation history and to help with such applications as engineering geology and fluidflow modelling. These analyses rely on quantifying such factors as length, ...
      Journal article
    • Ambient noise levels, QLg wave tomography and earthquake source parameters in Norway 

      Demuth, Andrea (The University of Bergen, 2019-04-05)
      Norway is part of an intraplate environment and therefore experiences low to intermediate seismicity. This seismicity is a response to the stress eld in the lithosphere, which is mainly in uenced by ridge push from the ...
      Doctoral thesis
    • Application of Clumped Isotope Thermometry to Benthic Foraminifera 

      Piasecki, Alison; Bernasconi, Stefano M.; Grauel, Anna-Lena; Hannisdal, Bjarte; Ho, Sze Ling; Leutert, Thomas Jan; Marchitto, Thomas M.; Meinicke, Niklas; Tisserand, Amandine Aline; Meckler, Anna Nele (Wiley, 2019-04)
      Obtaining absolute temperatures of the ocean in deep time is complicated by the lack of constraints on seawater chemistry. Seawater salinity, carbonate ion concentration, δ18O, and elemental abundance changes may obscure ...
      Journal article
    • The largest delta plain in Earth's history 

      Klausen, Tore Grane; Nyberg, Bjørn R.; Helland-Hansen, William (Geological Society of America, 2019-03-22)
      Delta plains host heavily populated and extensive agricultural areas with strong anthropogenic overprints on the natural evolution of these important landforms. Furthermore, modern delta plains have formed over a short ...
      Journal article
    • Control of increased sedimentation on orogenic fold-and-thrust belt structure-insights into the evolution of the Western Alps 

      Erdös, Zoltan; Huismans, Ritske; van der Beek, Peter (Copernicus, 2019-03-13)
      We use two-dimensional thermomechanical models to investigate the potential role of rapid filling of foreland basins in the development of orogenic foreland fold-and-thrust belts. We focus on the extensively studied example ...
      Journal article
    • Pervasive cold ice within a temperate glacier – implications for glacier thermal regimes, sediment transport and foreland geomorphology. 

      Reinardy, Benedict T.I.; Booth, Adam D; Hughes, Anna L.C.; Boston, Clare M.; Åkesson, Henning; Bakke, Jostein; Nesje, Atle; Giesen, Rianne H.; Pearce, Danni (EGU, 2019-03-07)
      This study suggests that cold-ice processes may be more widespread than previously assumed, even within temperate glacial systems. We present the first systematic mapping of cold ice at the snout of the temperate glacier ...
      Journal article
    • Sea ice variability in the southern Norwegian Sea during glacial Dansgaard-Oeschger climate cycles 

      Sadatzki, Henrik; Dokken, Trond Martin; Berben, Sarah Miche Patricia; Muschitiello, Francesco; Stein, Ruediger; Fahl, Kirsten; Menviel, Laurie; Timmermann, Axel; Jansen, Eystein (AAAS, 2019-03-06)
      The last glacial period was marked by pronounced millennial-scale variability in ocean circulation and global climate. Shifts in sea ice cover within the Nordic Seas are believed to have amplified the glacial climate ...
      Journal article