Ancient Changjiang channel system in the East China Sea continental shelf during the last glaciation
Based on the data of high-resolution seismic profiles, an ancient river channel system of the last glaciation occurred along the Zhedong and Xihu depression in the southeast of Hupijiao rise. The distribution of the channel fill system shows that the ancient Changjiang River went through the Changjiang depression into the low land plain of the outside continental shelf during the low sea level cycle of the last glaciation. The big channel fill into Okinawa Trough is not found due to the depletion of the river kinetic energy in the low land plain. The river discharge dispersal was of an important role to the dilution of the northern Okinawa Trough sea at that time. Six ancient river channel systems (A―F), which are main distributaries of ancient Changjiang in the East China Sea continental shelf during the last glaciation, may be buried off the modern Changjiang estuary. The distribution of these channels coincides with the zonal elevations in the sea floor.
作 者： LI Guangxue LIU Yong YANG Zigeng YUE Shuhong YANG Wenda HAN Xibin 作者单位： LI Guangxue(College of Marine Geo-science, Ocean University of China, Qingdao 266003, China;Shandong Key Laboratory of Sea Floor Resource and Exploration Technique, Qingdao 266003, China)LIU Yong,HAN Xibin(College of Marine Geo-science, Ocean University of China, Qingdao 266003, China)
YANG Zigeng(Qingdao Institute of Marine Geology, Qingdao 266071, China)
YUE Shuhong(College of Marine Environment, Ocean University of China, Qingdao 266003, China)
YANG Wenda(First Survey Team of Marine Geology, Shanghai Bureau of Petroleum, Shanghai 201208, China)
刊 名： 中国科学D辑（英文版） SCI 英文刊名： SCIENCE IN CHINA (EARTH SCIENCES) 年，卷(期)： 2005 48(11) 分类号： P3 关键词： last glaciation continental shelf plain Changjiang River ancient channel fill