10:15 AM - 10:30 AM
[U03-06] Seafloor and subseafloor experiments at the Hikurangi subduction margin to investigate the causes and consequences of slow slip events
Keywords:subduction, scientific drilling, slow slip events
The centerpiece of efforts to understand slow slip at the Hikurangi margin is a series of IODP proposals (781A-Full and 781B-Full) to undertake riserless (Joides Resolution) and riser (Chikyu) drilling, and CORK observatory installation on a transect spanning the shallow Hikurangi SSEs. Joides Resolution drilling is scheduled at the Hikurangi margin for November-December 2017 and March-May 2018 on Expeditions 372 and 375. These two expeditions aim to investigate the processes and in situ conditions that underlie subduction zone SSEs at northern Hikurangi through coring and logging of the frontal thrust, upper plate, and incoming sedimentary succession, and by installation of borehole observatories in the frontal thrust and upper plate above the slow slip source area. The LWD data will be acquired on Expedition 372, while coring and installation of the CORK observatories will take place on Expedition 375. We will also discuss the plans and scientific objectives for the upcoming JOIDES Resolution drilling.