Blar i Bergen Open Research Archive på forfatter "Rutledal, Sunniva"
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Assessing linkages between ice sheet calving, subpolar gyre hydrography and deep water ventilation during the last glaciation
Rutledal, Sunniva (Master thesis, 2017-06-23)It is commonly postulated that ice sheet dynamics and freshwater perturbations in the North Atlantic were linked to disruptions in deep water circulation and North Atlantic cooling in the past. However, the exact nature ... -
A continuous tephrostratigraphic record from the Labrador Sea spanning the last 65 ka
Rutledal, Sunniva; Haflidason, Haflidi; Berben, Sarah Miche Patricia; Griem, Lisa; Jansen, Eystein (Journal article; Peer reviewed, 2020)Volcanic ash preserved in marine sediment sequences is key for independent synchronization of palaeoclimate records within and across different climate archives. Here we present a continuous tephrostratigraphic record from ... -
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) ... -
Tephrochronology of the North Atlantic during the Last Glacial period – a paleoclimate synchronization tool
Rutledal, Sunniva (Doctoral thesis, 2021-04-09)During present time, the global climate is changing at a rapid pace. To understand the future consequences of these changes, studies of past abrupt climate change are essential. A natural analogue to the current climate ...