Imaging of the Earth’s crust and upper mantle using novel receiver-based seismic techniques

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Principal supervisor: Benoit Tauzin
Co-supervisor: Hrvoje Tkalčić

This research project will focus on developing and improving the methods in Earth Physics to image the Earth’s structure using fundamental physical principles of seismic wave propagation. Recently, the Seismology and Mathematical Geophysics group at the Research School of Earth Sciences (RSES), ANU, has demonstrated the feasibility of extracting high frequency seismic reflection signals from interferometry principles. This method is complementary to active seismic reflection profiling, applied first in hydrocarbon exploration from the beginning of the 20th century, and to receiver function imaging, a more recent method that makes use of converted seismic body waves from distant earthquakes.

Numerical simulation of wave propagation will be used to investigate  the quality of seismic interferometry imaging. The potential for shallow high-resolution crustal and deeper mantle imaging will be tested and calibrated against existing profiles from active seismic reflection and receiver functions. This work will allow re-assessing and providing new interpretations of the structure in collisional orogens such as in the Himalaya and the French Pyrenees, subduction zones in Mexico and Hikurangi (New-Zealand), and stable continental regions such as in Central Australia.

The successful applicant will have a good background in computer sciences, physics, engineering or mathematics. Experience in computer programming is recommended. For more information about this potential research topic or activity, or to discuss any related research area, please contact the supervisor.

 

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