| SEDIMENTARY CHARACTERISTICS OF CHENIERS IN SOUTHERN CHANGJIANG DELTA AND THEIR ORIGIN AND AGE DETERMINATION |
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| 作者姓名： | 刘苍字 吴立成 曹敏 |
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| 作者单位： | Institute of Estuarine and Coastal Research, East China Normal University, Shanghai;Institute of Estuarine and Coastal Research, East China Normal University, Shanghai;Institute of Estuarine and Coastal Research, East China Normal University, Shanghai |
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| 摘 要： | According to analyses on the texture and structure of sediment, species component and accumulative way of shells, geometry of sana body and its vertical sequence, this paper points out that the sand ridge located in the west of Shanghai is a kind of ancient chenier, and the entire broad plain of cheniers and the mud flats in between is called chenier plain. The origin of the chenier is related to the shifting of main branch channel in the Changjiang estuary and coastal changes during the historical periods. Based on 14C dating data, the ages of the cheniers from west to east are 6800-6000,5800-5500, 4200-4000 and 3200 years B. P. respectively. These cheniers of different ages illustrate the development processes of the Changjiang Delta during the Middle Holocene.
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| 收稿时间： | 1985/11/16 0:00:00 |
| 修稿时间： | 1986/7/20 0:00:00 |
SEDIMENTARY CHARACTERISTICS OF CHENIERS IN SOUTHERN CHANGJIANG DELTA AND THEIR ORIGIN AND AGE DETERMINATION |
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| LIU CANGZI,WU LICHENG and CAO MIN.SEDIMENTARY CHARACTERISTICS OF CHENIERS IN SOUTHERN CHANGJIANG DELTA AND THEIR ORIGIN AND AGE DETERMINATION[J].Acta Oceanologica Sinica,1987,6(3):405-412. |
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| Authors: | LIU CANGZI WU LICHENG and CAO MIN |
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| Institution: | Institute of Estuarine and Coastal Research, East China Normal University, Shanghai |
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| Abstract: | According to analyses on the texture and structure of sediment, species component and accumulative way of shells, geometry of sana body and its vertical sequence, this paper points out that the sand ridge located in the west of Shanghai is a kind of ancient chenier, and the entire broad plain of cheniers and the mud flats in between is called chenier plain. The origin of the chenier is related to the shifting of main branch channel in the Changjiang estuary and coastal changes during the historical periods. Based on 14C dating data, the ages of the cheniers from west to east are 6800-6000,5800-5500, 4200-4000 and 3200 years B. P. respectively. These cheniers of different ages illustrate the development processes of the Changjiang Delta during the Middle Holocene. |
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