Oxford Events, the new replacement for OxTalks, will launch on 16th March. From now until the launch of Oxford Events, new events cannot be published or edited on OxTalks while all existing records are migrated to the new platform. The existing OxTalks site will remain available to view during this period.
From 16th, Oxford Events will launch on a new website: events.ox.ac.uk, and event submissions will resume. You will need a Halo login to submit events. Full details are available on the Staff Gateway.
Seismic anisotropy provides key information to map the trajectories of mantle flow and understand the evolution of our planet. While the presence of anisotropy in the uppermost mantle is well established, the existence and nature of anisotropy in the transition zone and uppermost lower mantle are still debated. Here we use three-dimensional global seismic tomography images based on a large dataset that is sensitive to this region to show the presence of anisotropy in the lower mantle beneath subduction zones. We interpret the tomography images in terms of mantle flow using results from 3-D geodynamical models and mantle fabrics calculations. We then discuss three ongoing directions to enhance the imaging and interpretation of mantle anisotropy via: (i) improved waveform modelling for independent model appraisal; (ii) more integrated seismic and geodynamical analyses; and, (iii) new data from a large-scale offshore passive experiment in the mid-Atlantic.
