廈門大學海洋與地球學院

                    College of Ocean and Earth Sciences
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                    海洋科技博物館
                    Luncheon Seminar #150: Why is there a major (~1,000 km long) mud belt system on the inner shelf along the energetic Zhi-Min Coast?
                    2019/6/26 460 返回上頁
                    2019-7-1 (星期一) 11:40am-1:00pm Seminar starts at 12:00pm
                    劉祖乾,特聘教授 James T. Liu
                    周隆泉樓A3-206 A3-206 Zhou Long Quan Building

                    【來訪單位 Institution】:臺灣中山大學,臺灣    

                    【邀請人 Host】:簡星  Xing Jian      【聯絡人 Contact】:黃迎   Ying Huang 2181571

                    Abstract

                    Globally mud areas on continental shelves are sinks from the dispersal of fluvial-sourced sediments. This talk addresses a fundamental issue in sediment dynamics focusing on how mud is retained on the seabed on shallow inner shelves. Through a process-based comprehensive study that integrates dynamics, provenance, and sedimentology, we show that the key mechanism to keep mud on the seabed is the water-column stratification that forms vertical and lateral dynamic barriers that restrict the upward mixing and seaward transport of suspended sediments. We studied the 1000 km-long mud belt that extends from the mouth of the Changjiang (Yangtze) River along the coast of Zhejiang and Fujian Provinces of China and ends on the west coast of Taiwan. This mud belt system is dynamically attached to the fluvial sources, of which the Changjiang River is the primary one. Winter is the constructive phase when active deposition takes place of fine-grained sediment carried mainly by the Changjiang plume driven by Zhe-Min Coastal Currents southwestward along the coast.

                    Bio

                    Employment

                    Postdoctoral Investigator, Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Massachusetts, USA (1988-1989)
                    Postdoctoral Fellow, Harbor Branch Oceanographic Institution, Florida, USA (1989-1991)
                    Research Scientist II, Florida Institute of Technology, Florida, USA (1991-1993)
                    Associate Professor, Institute of Marine Geology and Chemistry, National Sun Yat-sen University, Kaohsiung (1994-1998)
                    Professor, Department of Oceanography (formerly Institute of Marine Geology and Chemistry), National Sun Yat-sen University, Kaohsiung (1998-present)

                    Research Interest and expertise

                    Coastal geology, coastal and estuarine sediment dynamics, coastal change, submarine canyon oceanography, marine hyperpycnal flow and sedimentation

                    Honor

                    Award for Research Excellence, Taiwan Ministry of Science of Technology




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