Browsing Bergen Open Research Archive by Author "Bernasconi, Stefano M."

Now showing items 1-4 of 4

    • Application of Clumped Isotope Thermometry to Benthic Foraminifera 

      Piasecki, Alison; Bernasconi, Stefano M.; Grauel, Anna-Lena; Hannisdal, Bjarte; Ho, Sze Ling; Leutert, Thomas Jan; Marchitto, Thomas M.; Meinicke, Niklas; Tisserand, Amandine Aline; Meckler, Anna Nele (Peer reviewed; Journal article, 2019-04)
      Obtaining absolute temperatures of the ocean in deep time is complicated by the lack of constraints on seawater chemistry. Seawater salinity, carbonate ion concentration, δ18O, and elemental abundance changes may obscure ...

    • Cold spells in the Nordic Seas during the early Eocene Greenhouse 

      Vickers, Madeleine L.; Lengger, Sabine K.; Bernasconi, Stefano M.; Thibault, Nicolas; Schultz, Bo; Bremer, Alvaro Fernandez; Ullmann, Clemens V.; McCormack, Paul; Bjerrum, Christian J.; Rasmussen, Jan Audun; Hougård, Iben Winther; Korte, Christoph (Journal article; Peer reviewed, 2020)
      The early Eocene (c. 56 - 48 million years ago) experienced some of the highest global temperatures in Earth’s history since the Mesozoic, with no polar ice. Reports of contradictory ice-rafted erratics and cold water ...

    • Reducing Uncertainties in Carbonate Clumped Isotope Analysis Through Consistent Carbonate-Based Standardization 

      Bernasconi, Stefano M.; Muller, Inigo A; Bergmann, Kristin D; Breitenbach, Sebastian F.M.; Fernandez, Alvaro; Hodell, David A; Jaggi, Madalina; Meckler, Anna Nele; Millan, Isabel; Ziegler, Martin (Peer reviewed; Journal article, 2018)
      About a decade after its introduction, the field of carbonate clumped isotope thermometry is rapidly expanding because of the large number of possible applications and its potential to solve long‐standing questions in Earth ...

    • Southern Ocean bottom-water cooling and ice sheet expansion during the middle Miocene climate transition 

      Leutert, Thomas Jan; Modestou, Sevasti Eleni; Bernasconi, Stefano M.; Meckler, A. Nele (Journal article; Peer reviewed, 2021)
      The middle Miocene climate transition (MMCT), around 14 Ma, was associated with a significant climatic shift, but the mechanisms triggering the event remain enigmatic. We present a clumped isotope (Δ47) bottom-water ...