Observations of the X-discontinuity - at 280-350 km depth - beneath hotspot locations
Sanne Cottaar1, Stephen Pugh2, Matthew Kemp2, Jennifer Jenkins3 and Alistair Boyce4, (1)University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, (2)University of Cambridge, Cambridge, United Kingdom, (3)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (4)Imperial College London, London, SW7, United Kingdom
