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Crustal Structure of Wanganui Basin: Implications for Back-Arc Basin Formation
thesis
posted on 2022-03-02, 20:02 authored by Brook TozerOnshore-offshore and onshore wide-angle reflection and refraction
seismic data are analysed in order to constrain the crustal P-wave
velocity structure within Wanganui Basin and the southern Hikurangi
margin, western North Island, New Zealand. Two, two-dimensional, P-wave
velocity models are constructed using reflection and refraction phase
travel-times based on forty-four onshore-offshore receiver gathers,
twelve onshore shot gathers and two marine multi-channel-seismic
reflection profiles collected along two transects within Wanganui Basin.
The profiles are orientated both sub-parallel and perpendicular to the
strike of the Hikurangi margin.