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Research Professor of Isotope Geology, University of Portsmouth

I am a geologist who has used geochemical methods to determine the ages of rocks and minerals. I apply methods of mass spectrometry to geological and environmental topics to help study processes that makes the Earth the place it is. A lot of my work has been spent studying the origin of mountains, continents, and earth history.


  • 2016–2021
    Professor, University of Portsmouth
  • 1996–2016
    Professor, University of Leicester
  • 1983–1996
    Research Scientist, Geological Survey of Canada


2010 Murchison Medal, The Geological Society; 2010 Schlumberger Medal of The Mineralogical Society