摘要
根据第一海洋地质调查大队丰富的调查资料和已有成果,对东海大陆架初步划分了12个地貌单元,从空间上、时间上探讨三角洲、古滨海平原等地貌发育史,首次提出东海陆架上发育有特殊的构造地貌单元——断陷盆地,进一步确定古河口湾沙脊群的范围。
According to the abundant data and results obtained by No.1 Marine Geological Investi- gation Team,the East China Sea Shelf can be divided preliminarily into 12 areas in geomo- rphology.This paper presents the development history of the delta,the ancient nearshore plain etc.from the viewpoint of space and time,advances for the first time the idea about special tectonics geomorphic unit…fault depression on the East China Sea Shelf, and further defines the sand ridges of the ancient estuary.
关键词
东海大陆架
地貌分区
沙脊群
The East China Sea Shelf
geomorphic division
delta of the Yangtze River
sand ridges
