Onshore/Offshore Seismic Imaging of the New Zealand Subduction Zone

发生在俯冲带的行为和过程使我们对各种尺度的板块边界相互作用有了全面的了解，对板块构造、挥发物循环、地震危险和气候有广泛的影响。在新西兰，有证据表明慢滑地震活动和逆冲地震在相对较短的长度范围内发生变化。此外，从板块中释放的流体影响了一系列过程，包括断层滑动、弧岩浆活动和潜在的泥火山活动。过程和长度尺度的多样性需要在一系列尺度和灵敏度上进行调查。这个项目的重点将是提供新西兰更大规模的结构成像。该学生将使用汇编和互补的陆上和海上地震学数据集，在10公里到1000公里的多个尺度上对新西兰俯冲带系统进行成像。这将补充正在进行的工作，重点是了解Hikurangi边缘的缓慢滑动。合并后，学生将拥有跨越南北岛屿的数据。

The behaviors 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.