My research is concerned with the structure and tectonics of the continents. I study the source and causes of volcanism, mountain building and sedimentary basin formation, with a focus on the exploration of Antarctica and the wider New Zealand continent. I have ongoing research collaborations with GNS Science in Wellington and with colleagues overseas in the UK, USA and Australia. Since 1993 I have led a FRST funded programme to explore the crust and mantle of the New Zealand continent. Areas of particular focus have been: - The Alpine fault - The deep structure of the Southern Alps - The crust-upper mantle configuration of the Taupo Volcanic Zone.