Blar i Department of Earth Science på forfatter "Pedersen, Leif-Erik Rydland"

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    • A Highly Depleted and Subduction-Modified Mantle Beneath the Slow-Spreading Mohns Ridge 

      Bjerga, Anders; Stubseid, Håvard Hallås; Pedersen, Leif-Erik Rydland; Beinlich, Andreas Michael; Pedersen, Rolf B. (Journal article; Peer reviewed, 2022)
      The Mohns Ridge is a very slow-spreading ridge that, together with the Knipovich Ridge, marks the boundary between the North American and Eurasian plates in the Norwegian-Greenland Sea. In this study, we report the major ...

    • Radiation damage allows identification of truly inherited zircon 

      Bjerga, Anders; Stubseid, Håvard Hallås; Pedersen, Leif-Erik Rydland; Pedersen, Rolf B. (Journal article; Peer reviewed, 2022)
      Many studies have reported U-Pb dates of zircon that are older than the igneous rocks that contain them, and they are therefore thought to be inherited from older rock complexes. Their presence has profound geodynamic ...

    • Reconstructing early Holocene seasonal bottom-water temperatures in the northern North Sea using stable oxygen isotope records of Arctica islandica shells 

      Trofimova, Tamara; Andersson, Carin; Bonitz, Fabian; Pedersen, Leif-Erik Rydland; Schöne, Bernd R. (Journal article; Peer reviewed, 2021)
      The knowledge of seasonal temperature variability in the ocean is essential for understanding climate and its response to forcing factors. Time intervals with highly dynamic climate and increased seasonal forcing such as ...

    • 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 ...

    • Zircon provenance of Devonian deposits in Western Norway 

      Pedersen, Leif-Erik Rydland (Master thesis, 2011-06-01)
      The provenance of the Devonian deposits of western Norway has been studied by detrital zircon geochronology. These deposits are found in the Fensfjorden -, Solund -, Kvamshesten -, Hornelen - and Smøla basin. A total of ...