| Issues of the Holocene transgression on the southern plain of the Changjiang Delta |
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| 作者姓名： | Yan Qinshang Hong Xueqing |
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| 作者单位： | Department of Geography, East China Normal University, Shanghai, China;Department of Geography, East China Normal University, Shanghai, China |
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| 基金项目： | Projects supported by Science Foundation of the Academy of Sciences of China |
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| 摘 要： | The paper deals with the question of Holocene transgression on the southern plain of the Changjiang Delta.At the beginning of the transgression, the paleovalleys of the Changjiang and Qiantang Rivers were covered by sea water at first.The 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
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| 收稿时间： | 9/8/1987 12:00:00 AM |
| 修稿时间： | 1/5/1988 12:00:00 AM |
Issues of the Holocene transgression on the southern plain of the Changjiang Delta |
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| Yan Qinshang,Hong Xueqing.Issues of the Holocene transgression on the southern plain of the Changjiang Delta[J].Acta Oceanologica Sinica,1988,7(4):578-590. |
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| Authors: | Yan Qinshang and Hong Xueqing |
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| Institution: | Department of Geography, East China Normal University, Shanghai, China |
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| Abstract: | The paper deals with the question of Holocene transgression on the southern plain of the Changjiang Delta.At the beginning of the transgression,the paleovalleys of the Changjiang and Qiantang Rivers were covered by sea water at first.The 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 freshwater lake. |
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