Issues of the Holocene transgression on the southern plain of the Changjiang Delta
Issues of the Holocene transgression on the southern plain of the Changjiang Delta作者机构:Dept. of Geography East China Normal Univ. Shanghai China. China
出 版 物:《Acta Oceanologica Sinica》 (海洋学报(英文版))
年 卷 期:1988年第7卷第4期
页 面:578-590页
学科分类:0710[理学-生物学] 1002[医学-临床医学] 0908[农学-水产] 0707[理学-海洋科学] 100214[医学-肿瘤学] 10[医学]
基 金:Projects supported by Science Foundation of the Academy of Sciences of China
主 题:Ho Issues of the Holocene transgression on the southern plain of the Changjiang Delta
摘 要:The paper deals with the question of Holocene transgression on the southern plain of the Changjiang *** the beginning of the transgression, the paleovalleys of the Changjiang and Qiantang Rivers were covered by sea water at *** shoreline of 8000-7500 yr BP coincided with the -7m isobath of paleotopography. Sea level had already been the present level about 7000-6500 years ago, and the Holocene transgression reached its maximum extent. During the period, the Changjiang and Qiantang Rivers and the Dongtiaoxi valley were turned into estuaries; the eastern area of Shanghai became a shallow sea; some of the bays and lagoons were distributed on the Hang-Jia-Hu and Tao-Ge Plain; the hilly region around the Taihu Lake was coastal marsh and freshwater swamp. Gangshen on the west of Shanghai was formed 7000-4000 yr BP, and during the last 4000 years, the eastern coastal plain of Shanghai advanced quickly toward the sea, and partial clear land of the western Taihu Lake was enclosed and charged into a fre