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Dr Pauline Treble

Isotope Paleoclimateologist

Role at ANSTO

Dr Treble is a mid-career researcher with an international reputation in the field of speleothem (cave deposit) palaeoclimate research. She is currently employed as a Research Scientist within the Environment project at the Australian Nuclear Science and Technology Organisation (ANSTO). She specialises in constructing stalagmite-based terrestrial palaeoclimate records for the southern Australian region. She employs stable isotopic (d18O) and trace element data from stalagmites, as well as age measurements using the uranium-thorium disequilibrium technique, to build high-resolution terrestrial palaeoclimate records. These records provide a history of the natural variability of rainfall and diffuse recharge above a cave site. They hence form critical baseline information required to identify and understand climate change for this important water resource region.

A strong component of this research employs caves as a natural laboratory to constrain the climate-cave signal and other processes.  This involves studying the surface and shallow groundwater interactions, soil characteristics, karst hydrology, landscape and vegetation change e.g. fire, and how these processes influence the hydrogeochemical evolution of diffuse recharge to cave drip water. Dr Treble supervises both Honours and PhD level students on these projects.Expertise

Speleothem, carbonate, stalagmite, cave, O isotopes, paleoclimatology, trace element.

Qualifications & Achievements

  • British Council Exchange Award for young scientists (2007)
  • Ph.D. in Speleothem Paleoclimatology, Australian National University (2003)
  • BSc (Hons I & University Medal) University of Sydney(1998)