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Karen Cecilie Johannessen

Researcher
  • E-mailKaren.C.Johannessen@uib.no
  • Phone+47 994 96 900
  • Visitor Address
    Realfagbygget, Allégt. 41
  • Postal Address
    Postboks 7803
    5020 Bergen
Academic article
  • Johannessen, Karen Cecilie; McLoughlin, Nicola; Vullum, Per Erik; Thorseth, Ingunn Hindenes. 2019. On the biogenicity of Fe-oxyhydroxide filaments in silicified low-temperature hydrothermal deposits: Implications for the identification of Fe-oxidizing bacteria in the rock record. Geobiology. 31-53.
  • Johannessen, Karen Cecilie; Vander Roost, Jan Pieter; Dahle, Håkon; Dundas, Siv Hjorth; Pedersen, Rolf B.; Thorseth, Ingunn Hindenes. 2017. Environmental controls on biomineralization and Fe-mound formation in a low-temperature hydrothermal system at the Jan Mayen Vent Fields. Geochimica et Cosmochimica Acta. 101-123.
  • Johannessen, Karen Cecilie; Kohlmann, Fabian; Ksienzyk, Anna Katharina; Dunkl, István; Jacobs, Joachim. 2013. Tectonic evolution of the SW Norwegian passive margin based on low-temperature themochronology from the innermost Hardangerfjord area. Norsk Geologisk Tidsskrift. 243-260.
Academic lecture
  • Johannessen, Karen Cecilie; McLoughlin, Nicola; Vullum, Per Erik; Thorseth, Ingunn Hindenes. 2017. Biogenicity of Fe-oxyhydroxide filaments in silicified low-temperature hydrothermal deposits.
  • Johannessen, Karen Cecilie; Vander Roost, Jan Pieter; Dahle, Håkon; Dundas, Siv Hjorth; Pedersen, Rolf B.; Thorseth, Ingunn Hindenes. 2016. Local environmental controls on microbial Fe(II)-oxidation in seafloor hydrothermal deposits.
  • Johannessen, Karen Cecilie; Jacobs, Joachim; Kohlmann, Fabian; Ksienzyk, Anna Katharina; Dunkl, István. 2013. The Eidfjord area revised: new thermochronological constraints on the exhumation history of central southern Norway.
Popular scientific article
  • Bjerga, Anders; Stensland, Anne; Johannessen, Karen Cecilie. 2017. Et fremmed undervannsland. geoforskning.no.
Poster
  • Thorseth, Ingunn Hindenes; Johannessen, Karen Cecilie; Vullum, Per Erik; McLoughlin, Nicola. 2016. Focused ion beam-transmission electron microscopy of extracellular stalks produced by iron-oxidizing bacteria.
  • Vullum, Per Erik; Johannessen, Karen Cecilie. 2016. Electron Energy Loss Spectroscopy to determine electronic properties in solid materials.
  • Johannessen, Karen Cecilie; Thorseth, Ingunn Hindenes; Pedersen, Rolf B.; McLoughlin, Nicola. 2014. Textural and geochemical biosignatures of microaerophilic iron-oxidising bacteria in hydrothermal siliceous iron deposits.

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