I am a senior research fellow at the School of Archaeology. Prior to moving to Oxford in 2009, I was a postdoctoral fellow in the Department of Earth Sciences, University of Bristol. I obtained my PhD in Geology from the University of Auckland, New Zealand.
My research focuses on the composition of the volcanic deposits (tephra) from large explosive eruptions. The composition of the tephra (glass and minerals) provides a chemical fingerprint that allows these layers to be correlated to other deposits of the same eruption. These layers are ideal for providing absolute (dated using radiocarbon or Ar/Ar methods) and relative chronology for archaeological and palaeoenvironmental records. I also use the composition of the eruption deposits to further understand magmatic processes.