[U08-P06] Innovative 4D imaging of subduction-zones through real-time observatories, ultra-deep drilling and high-pressure experiments
Keywords:Seafloor cable network, Ultra-deep drilling, Ultra-high pressure experiments, GNSS buoy, Subduction zone, Mantle rheology
For this purpose, we propose to construct a real-time observatory network for earthquake and crustal deformation monitoring through seafloor cables and GNSS buoys. We also propose to obtain (and try to reproduce) the state and property around the subduction zones and in the mantle, by means of ultra-deep drilling and ultra-high pressure experiments. We are extremely interested in the mantle rheology, which is primarily controlled by the thermal structure and the abundance in volatiles (e.g. water), which we believe is only possible by integration of geophysical observation and by ground-truthing, insitu experiments.