Paleo-seismic Record of the Northern End of the Cascadia Subduction Zone

加拿大西海岸地震风险模型中最大的不确定性是大地震和相关海啸的频率和规模，这些地震和海啸有可能影响数百万加拿大人。这次研究巡航将增进我们对卡斯卡迪亚俯冲带北部未知地震史的了解，这一地震史被称为“古地震史”，它是过去地质历史上发生的大地震和海啸的罪魁祸首。卑诗省沿岸所有海洋沉积物的活塞芯和冰冻芯将从海底打捞出来，并进行分析，以准确地识别“地震岩”，并确定其年代，“地震岩”是受地震干扰的海底沉积物。2011年，在加拿大创新基金会和不列颠哥伦比亚省的资助下，研究小组获得了新的最先进的海洋沉积物岩心分析设备，称为多传感器岩芯记录仪(MSCL)，这是用于海洋沉积学研究的分析设备的国际标准。该设备增强了我们从海洋沉积物岩心中识别BC海岸“地震岩”的能力。

The greatest uncertainties in the Earthquake Hazard Model for Canada's west coast are the frequency and size of megathrust earthquakes and associated tsunamis which have the potential to affect millions of Canadians. This research cruise will advance our knowledge of the unknown earthquake history, known as the "paleo-seismic history", of the northern part of the Cascadia subduction zone which is responsible for giant earthquakes and tsunamis which occurred in the geologic past. Piston cores and freeze cores of marine sediments all along the BC coast will be raised from the seafloor and analyzed to accurately identify and date "seismites" which are ocean floor sediments which have been disturbed by earthquakes. In 2011, with funding from the Canada Foundation for Innovation and the Province of BC, the research team acquired new state of the art marine sediment core analytical equipment called a Multi-Sensor Core Logger (MSCL), which is the international standard of analytical equipment used for marine sedimentology research. This equipment enhances our capability to identify "seismites" along the BC coast from marine sediment cores.