| 冰后期珠江三角洲沉积物通量的初步研究 |
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| 引用本文： | 何志刚,吴超羽,莫文渊,唐兆民.冰后期珠江三角洲沉积物通量的初步研究[J].海洋学报,2006,28(6):72-77. |
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| 作者姓名： | 何志刚 吴超羽 莫文渊 唐兆民 |
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| 作者单位： | 中山大学近岸海洋科学与技术研究中心, 广东广州 510275 |
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| 基金项目： | 国家自然科学基金重点资助顶目(40331007)，国家自然基金资助项目(40176026) |
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| 摘 要： | 从珠江三角洲283个钻孔资料中识别出了冰后期海侵旋回底界面,从269个钻孔中识别出了最大海侵面,记录了它们的埋深值,并由此计算了冰后期及其海侵和海退期间的沉积物总量,结果表明,珠江三角洲在冰后期及其海侵和海退期间的沉积物总量分别为114.09,36.70,77.39Gt.海退期沉积量大于海侵期.以现今珠江输沙量的约84%沉积在三角洲范围内计算得到冰后期珠江年均输沙量约为9.91Mt,6000a以来的年均输沙量约为15.35Mt.
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| 关 键 词： | 珠江三角洲 沉积通量 冰后期 海侵期 海退期 |
| 文章编号： | 0253-4193（2006）06-0072-06 |
| 收稿时间： | 12 29 2005 12:00AM |
| 修稿时间： | 2005-12-292006-03-29 |
A preliminary study on sediment flux in the Zhujiang River Delta during the postglacial period |
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| HE Zhi-gang,WU Chao-yu,MO Wen-yuan and TANG Zhao-min.A preliminary study on sediment flux in the Zhujiang River Delta during the postglacial period[J].Acta Oceanologica Sinica (in Chinese),2006,28(6):72-77. |
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| Authors: | HE Zhi-gang WU Chao-yu MO Wen-yuan and TANG Zhao-min |
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| Institution: | Center for Coastal Ocean Science and Technology Research, Zhongshan University, Guangzhou 510275, China |
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| Abstract: | The sequence boundary and maximum flooding surface of the postglacial transgressive cycle in the Zhujiang River Delta have been identified by 283 and 269 cores,respectively.On the basis of these data,the sediment amounts of postglacial,transgressive and regressive periods in the Zhujiang River Delta have been worked out.The results show that the sediment amounts of postglacial,transgressive and regressive periods are 114.09,36.70 and 77.39 Gt,respectively.The sediment amounts of regressive period are more than those of the transgressive period.If the annually averaged silting sediments around the river mouth were 84% of the annually averaged sediment discharge of the Zhujiang River,the annually averaged sediment discharges during the postglacial period and regressive phases would have been 9.91 and 15.35 Mt,respectively. |
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| Keywords: | Zhujiang River Delta sediment flux postglacial period transgressive period regressive period |
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