| 渤海底质沉积物粒度特征及输运趋势探讨 |
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| 引用本文： | 乔淑卿,石学法,王国庆,杨刚,胡宁静,刘升发,刘焱光,朱爱美,李朝新.渤海底质沉积物粒度特征及输运趋势探讨[J].海洋学报,2010,32(4):139-147. |
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| 作者姓名： | 乔淑卿 石学法 王国庆 杨刚 胡宁静 刘升发 刘焱光 朱爱美 李朝新 |
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| 作者单位： | 1.国家海洋局 第一海洋研究所 海洋沉积与环境地质国家海洋局重点实验室,山东 青岛 266061 |
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| 基金项目： | 国家自然科学基金项目(40806026);"九○八"专项课题(908-ZC-I-05;908-02-02-05);国家海洋局第一海洋研究所基本科研业务专项项目(GY02-2008T28;GY02-2008G39)资助。 |
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| 摘 要： | 基于对渤海171个表层沉积物样品的粒度分析测试结果,使用Gao-Collins粒径趋势分析方法,研究了渤海底质沉积物的分布特征和输运趋势,结果表明:渤海粗粒级沉积物主要分布于辽东和渤中浅滩附近,在滦河口和黄河口也有零星分布;细粒级沉积物主要分布于渤海湾中部和南部,并呈条带状向辽东湾方向延伸;细粒级沉积物分选较粗粒级沉积物好,偏态系数较低;渤海细粒级沉积区为渤海的现代沉积中心,周边沉积物有向这个沉积中心汇聚的输运趋势。这种沉积物分布格局和输运趋势主要受潮流和渤海环流的控制。
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| 关 键 词： | 渤海 黄河 沉积物 粒度趋势分析 |
| 收稿时间： | 2009/11/26 0:00:00 |
Discussion on grain-size characteristics of seafloor sediment and transport pattern in the Bohai Sea |
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| QIAO Shu-qing,SHI Xue-f,WANG Guo-qing,YANG Gang,HU Ning-jing,LIU Sheng-f,LIU Yan-guang,ZHU Ai-mei and LI Chao-xin.Discussion on grain-size characteristics of seafloor sediment and transport pattern in the Bohai Sea[J].Acta Oceanologica Sinica (in Chinese),2010,32(4):139-147. |
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| Authors: | QIAO Shu-qing SHI Xue-f WANG Guo-qing YANG Gang HU Ning-jing LIU Sheng-f LIU Yan-guang ZHU Ai-mei and LI Chao-xin |
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| Affiliation: | 1.Key Laboratory of State Oceanic Administration for Marine Sedimentology & Environmental Geology, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China2.Faculty of Earth Science, China University of Geosciences, Wuhan 430074, China |
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| Abstract: | The grain-size distribution and transport pattern of seafloor sediment collected from the Bohai Sea were studied using grain-size data and Gao-Collins grain-size trend analysis method. The results show that coarse-grained sediment is mainly distributed on Liaodong and Bozhong shoals and occurs occasionally near the Luanhe and Huanghe mouths; fine-grained sediment mainly covers the central and southern part of Bohai Gulf and extends farther to the west of Liaodong Gulf. The fine-grained sediment is better sorted with lower skewness compared with the coarse-grained sediment; the fine-grained sediment area is considered to be a modern depositional center of the Bohai Sea and the sediment outside the center displays a net transport trend toward it. The distribution and transport pattern of sediment in the study area are proposed to be controlled by tidal currents and circulations. |
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| Keywords: | Bohai Sea Huanghe River sediment grain-size trend analysis |
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