Blar i forfatter "Olsen, Ingrid Leirvik"

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    • Glacigenic landforms and sediments in Store Koldewey Trough, NE Greenland – preliminary results 

      Olsen, Ingrid Leirvik; Forwick, Matthias; Laberg, Jan Sverre; Rydningen, Tom Arne; Husum, Katrine (Conference object; Konferansebidrag, 2018-04)
      The glaciation history of NE Greenland remains poorly constrained, resulting in conceptual and uncertain reconstructions of the configuration of the Greenland Ice Sheet during the Last Glacial Maximum (c. 24-19 ka BP), as well as the timing and the dynamics of the deglaciation. New studies suggests that the ice sheet in NE Greenland probably was more dynamic than previously thought, extending all ...

    • Last glacial ice sheet dynamics offshore NE Greenland – a case study from Store Koldewey Trough 

      Olsen, Ingrid Leirvik; Rydningen, Tom Arne; Forwick, Matthias; Laberg, Jan Sverre; Husum, Katrine (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-04)
      The presence of a grounded Greenland Ice Sheet on the northeastern part of the Greenland continental shelf during the Last Glacial Maximum is supported by new swath bathymetry and high-resolution seismic data, supplemented with multi-proxy analyses of sediment gravity cores from Store Koldewey Trough. Subglacial till fills the trough, with an overlying drape of maximum 2.5 m thick glacier-proximal ...

    • Late Weichselian and Holocene behavior of the Greenland Ice Sheet in the Kejser Franz Josef Fjord system, NE Greenland 

      Olsen, Ingrid Leirvik; Laberg, Jan Sverre; Forwick, Matthias; Rydningen, Tom Arne; Husum, Katrine (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-14)
      To better understand the past retreat patterns and chronologies of major marine-terminating outlet glaciers, the Late Weichselian and Holocene glacial history of a NE Greenland fjord system is reconstructed using new and previously published swath bathymetry and high-resolution seismic data, supplemented with multi-proxy analysis of sediment cores. The investigated area extends more than 190 km, ...

    • Sedimentary processes and paleoenvironments in Moskusoksefjord and Nordfjord, North-East Greenland. 

      Olsen, Ingrid Leirvik (Master thesis; Mastergradsoppgave, 2015-05-15)
      Multi-proxy analyses of five sediment cores (including lithostratigraphy, physical properties and XRF-scanning) and analyses of swath bathymetry and high resolution seismic data were integrated in order to reconstruct the Holocene glacial history and paleoenvironment of Moskusoksefjord and inner parts of Nordfjord, North-East Greenland. In Moskusoksefjord, the large-scale bathymetry is divided ...