| Description |
Through in-situ observation of sediment and oceanographic parameters by deep-water mooring and tripod deployments at several key locations, and water column profiling along the transects, as well as sediment and water sampling, the study tries to better understand the following processes that control the bottom circulations and sediment dynamics: (1) the property and temporal and spatial distribution of bottom ocean currents in the study area; (2) characterization and distribution of bottom nepheloid layer; (3) sedimentation and resuspension in the bottom boundary layer; (4) turbidity currents and their triggering mechanisms; (5) sources and transport pathways of bottom sediment that formed the subject high-sedimentation-rate deposit. The results from this study, when combined with the analyses and interpretation of existing high-resolution sediment cores, are expected to help understanding the evolution of ocean bottom circulation since the last glacial maximum (LGM), and its control on the formation of the subject high-sedimentation-rate deposit. |
