Browsing Bergen Open Research Archive by Author "Cederstrøm, Jan Magne"
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Harnessing the potential of CT scanning to identify cryptotephra in sediment cores: a controlled experiment.
Cederstrøm, Jan Magne (Master thesis, 2019-12-20)Volcanic ash (tephra) is a powerful geochronological tool, called tephrochronology, as rapid widespread deposition in multiple environments allows for correlation of geological archives across vast areas. It can thus help ... -
Rapid Tephra Identification in Geological Archives With Computed Tomography: Experimental Results and Natural Applications
Van Der Bilt, Willem; Cederstrøm, Jan Magne; Støren, Eivind Wilhelm Nagel; Berben, Sarah Miche Patricia; Rutledal, Sunniva (Journal article; Peer reviewed, 2021)Volcanic ash (tephra) horizons represent powerful chronological and stratigraphic markers: rapid and widespread deposition allows for correlation of geological records in time and space. Recent analytical advances enable ... -
Semi‐automatic Ice Rafted Debris quantification with Computed Tomography
Cederstrøm, Jan Magne; Bilt, Willem Godert Maria van der; Støren, Eivind Wilhelm Nagel; Rutledal, Sunniva (Journal article; Peer reviewed, 2021)Sedimentary ice-rafted debris (IRD) provides critical information about the climate sensitivity and dynamics of ice sheets. In recent decades, high-resolution investigations have revelated ice rafting events in response ... -
Tephra horizons identified in the western North Atlantic and Nordic Seas during the Last Glacial Period: Extending the marine tephra framework
Rutledal, Sunniva; Berben, Sarah Miche Patricia; Dokken, Trond Martin; Bilt, Willem van der; Cederstrøm, Jan Magne; Jansen, Eystein (Journal article; Peer reviewed, 2020)Geochemically distinct volcanic ash (tephra) deposits are increasingly acknowledged as a key geochronological tool to synchronize independent paleoclimate archives. Recent advances in the detection of invisible (crypto) ...