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Onshore/Offshore Seismic Imaging of the New Zealand Subduction Zone


Project Description

The behaviours and processes that occur at subduction zones inform our global understanding of plate boundary interaction at a variety of scales with broad implications for plate tectonics, volatiles cycling, seismic hazard and climate. In New Zealand there is evidence for both slow slip seismicity as well as thrust earthquakes changing over a relatively short length scale. In addition, fluid release from the slab affects a range of processes including fault slip, arc magmatism and potentially mud volcanoes. The variety of processes and length scales necessitates investigation at a range of scales and sensitivities. The particular emphasis of this project will be to provide larger scale structural imaging of New Zealand. The student will use compiled and complementary onshore and offshore seismology datasets to image the subduction zone system in New Zealand at multiple scales from 10’s km to 1000 km. This will complement ongoing work focused on understanding slow slip on the Hikurangi Margin. When combined the student will have data that spans both the north and south Islands.

Funding Notes

You can apply for fully-funded studentships (stipend and fees) from INSPIRE if you:
Are a UK or EU national.
Have no restrictions on how long you can stay in the UK.
Have been 'ordinarily resident' in the UK for 3 years prior to the start of the project.

Please click View Website for more information on eligibility and how to apply

References

Yeck, W.L., A.F. Sheehan, J.C. Stachnik, F.C. Lin (2017) , Offshore Rayleigh group velocity observations of the South Island, New Zealand, from ambient noise data, Geophysical Journal International, v. 209, 827-841, 2017, doi: 10.1093/gji/ggx054
Gray M, Bell R, Morgan J, et al., Imaging the shallow subsurface structure of the north Hikurangi subduction zone, New Zealand, using 2D full-waveform inversion, Journal of Geophysical Research. Solid Earth, ISSN:2169-9356
Rychert, C. A., Harmon, N., and Tharimena, S. 2018. Scattered Wave Imaging of the Oceanic Plate in Cascadia, Science Advances, 4 (2), doi: 10.1126/sciadv.aao1908

How good is research at University of Southampton in Earth Systems and Environmental Sciences?

FTE Category A staff submitted: 68.62

Research output data provided by the Research Excellence Framework (REF)

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