• Coupled Southern Ocean cooling and Antarctic ice sheet expansion during the middle Miocene 

      Leutert, Thomas Jan; Auderset, Alexandra; Martínez-García, Alfredo; Modestou, Sevasti Eleni; Meckler, Anna Nele (Journal article; Peer reviewed, 2020)
      The middle Miocene climate transition (~14 million years ago) was characterized by a dramatic increase in the volume of the Antarctic ice sheet. The driving mechanism of this transition remains under discussion, with ...
    • InterCarb: A Community Effort to Improve Interlaboratory Standardization of the Carbonate Clumped Isotope Thermometer Using Carbonate Standards 

      Bernasconi, S.M.; Daeron, Mathieu; Bergmann, Kristin D.; Bonifacie, Magali; Meckler, Anna Nele; Affek, H. P.; Anderson, N.; Bajnai, D.; Barkan, E.; Beverly, E.; Blamart, D.; Burgener, L.; Calmels, D.; Chaduteau, C.; Clog, M.; Davidheiser-Kroll, B.; Davies, A.; Dux, F.; Eiler, J.; Elliott, B.; Fetrow, A. C.; Fiebig, J.; Goldberg, S.; Hermoso, M.; Huntington, K. W.; Hyland, E.; Ingalls, M.; Jaggi, M.; John, C. M.; Jost, A. B.; Katz, S.; Kelson, J.; Kluge, T.; Kocken, I. J.; Laskar, A.; Leutert, Thomas Jan; Liang, D.; Lucarelli, J.; Mackey, T. J.; Mangenot, X.; Meinicke, Niklas; Modestou, Sevasti Eleni; Müller, I. A.; Murray, S.; Neary, A.; Packard, N.; Passey, B. H.; Pelletier, E.; Petersen, S.; Piasecki, Alison; Ziegler, M. (Journal article; Peer reviewed, 2021)
      Increased use and improved methodology of carbonate clumped isotope thermometry has greatly enhanced our ability to interrogate a suite of Earth-system processes. However, interlaboratory discrepancies in quantifying ...
    • Precessional Cyclicity of Seawater Pb Isotopes in the Late Miocene Mediterranean 

      Modestou, Sevasti Eleni; Gutjahr, Marcus; van der Schee, Marlies; Ellam, Rob; Flecker, Rachel (Peer reviewed; Journal article, 2019-12)
      Astronomical tuning in the Mediterranean region is primarily based on organically‐mediated proxies, such as cyclicity of organic rich layers or changes in foraminiferal assemblages. Both during and post deposition, organic ...
    • 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 ...
    • Warm Middle Miocene Indian Ocean Bottom Water Temperatures: Comparison of Clumped Isotope and Mg/Ca‐Based Estimates 

      Modestou, Sevasti Eleni; Leutert, Thomas Jan; Bremer, Alvaro Fernandez; Lear, Caroline H.; Meckler, Anna Nele (Journal article; Peer reviewed, 2020)
      The middle Miocene is an important analogue for potential future warm climates. However, few independent deep ocean temperature records exist, though these are important for climate model validation and estimates of changes ...