Staff Lead researcher Professor William Powrie Professor of Geotechnical Engineering Research interests Railway track and trackbed behaviour and performance. Geotechnical transportation infrastructure (earthworks, retaining walls, tunnels). Connect with William Email: w.powrie@soton.ac.uk Other researchers Professor John Marshall Professor Connect with John Email: jeam@soton.ac.uk MP Professor Martin Palmer Professor of Geochemistry Connect with Martin Email: m.r.palmer@soton.ac.uk Collaborating research institutes, centres and groups Geochemistry We use our advanced geochemical facilities to perform the precise and accurate analysis of the chemical and isotopic composition of a variety of Earth materials.