Onshore/Offshore Seismic Imaging of the New Zealand Subduction Zone

俯冲带上发生的行为和过程使我们在不同尺度上对板块边界相互作用有了全面的了解，对板块构造、挥发分循环、地震灾害和气候具有广泛的意义。在新西兰，有证据表明，慢滑地震活动以及推覆性地震在相对较短的尺度上发生了变化。此外，从板块释放的流体会影响一系列过程，包括断层滑动、弧形岩浆作用和潜在的泥火山。由于工艺和长度尺度的多样性，需要在各种尺度和敏感性上进行调查。该项目的重点将是提供新西兰更大范围的结构成像。学生将使用编译和补充的陆上和近海地震学数据集，在从10‘S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群岛的数据。

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.