| 胶州湾口海底沙波的类型、特征及发育影响因素 |
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| 引用本文： | 边淑华,夏东兴,陈义兰,赵月霞.胶州湾口海底沙波的类型、特征及发育影响因素[J].中国海洋大学学报(自然科学版),2006,36(2):327-330. |
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| 作者姓名： | 边淑华 夏东兴 陈义兰 赵月霞 |
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| 作者单位： | 国家海洋局第一海洋研究所,山东,青岛,266061 |
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| 基金项目： | 致谢：本文所用多波束资料由国家海洋局第一海洋研究所“胶州湾海底隧道工程勘探”项目提供;中国海洋大学的侍茂崇老师提供了海流资料;国家海洋局第一海洋研究所的王文海研究员提供了海底沉积物资料,在此表示衷心感谢! |
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| 摘 要： | 采用多波束资料对胶州湾口的海底沙波类型、特征进行了研究,发现研究区主要有线性沙波(二维)、沙丘(三维)2种沙波类型。结合水流流速、海底构造和表层沉积物综合分析发现:海底沙波缓坡朝向与优势流向不完全一致,为强流作用的产物,在涨、落潮作用下均可形成;沉积物的多寡是研究区海底沙波类型分布的决定因素,海底松散沉积物较为丰富的地区形成二维沙波。在水动力强大的胶州湾口,沉积物多分布在构造低洼地带,使二维线性沙波的分布与海底断裂延伸方向一致。
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| 关 键 词： | 沙波 多波束 沉积物 构造线 胶州湾 |
| 文章编号： | 1672-5174(2006)02-327-04 |
| 收稿时间： | 2005-04-08 |
| 修稿时间： | 2005-06-06 |
The Classification Characteristics and Developing Factors of the Sandwaves at the Mouth of Jiaozhou Bay |
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| BIAN Shu-Hua,XIA Dong-Xing,CHNE Yi-Lan,ZHAO Yue-Xia.The Classification Characteristics and Developing Factors of the Sandwaves at the Mouth of Jiaozhou Bay[J].Periodical of Ocean University of China,2006,36(2):327-330. |
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| Authors: | BIAN Shu-Hua XIA Dong-Xing CHNE Yi-Lan ZHAO Yue-Xia |
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| Institution: | First Institute of Oceanography, SOA, Qingdao 266061, China |
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| Abstract: | The most recent SeaBeam data show the characteristics and classification of the sand waves in Jiaozhou Bay.There are two types of sand waves,2-dimensional linear sand waves,3-dimensional cuspate sand waves at the mouth of Jiaozhou Bay.The developing factors are discussed based on the current velocity,seabed tectonics and sediment distribution.The gentle slope of the sand waves does not all develop downstream of the dominant flow,so that the sand waves are variational,they can only develop under strong tidal currents, and under both the flood and ebb currents because of their large velocities;The sediment is the key factor of the distribution of the sand waves,which show that the 2-dimensional linear sand waves are mainly located along the tectonic zone where more sediment was trapped because of the existence of a concave trough. |
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| Keywords: | sand waves SeaBeam sediment dominant flow Jiaozhou Bay |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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