| 黄东海灾害地质类型及声学反射特征 |
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| 引用本文： | 李西双,刘保华,郑彦鹏,李三忠,王揆洋.黄东海灾害地质类型及声学反射特征[J].中国海洋大学学报(自然科学版),2002,32(1):107-114. |
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| 作者姓名： | 李西双 刘保华 郑彦鹏 李三忠 王揆洋 |
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| 作者单位： | 1. 青岛海洋大学,青岛,266003
2. 国家海洋局第一海洋研究所,青岛,266061 |
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| 基金项目： | 国家“12 6”专项“灾害地质环境调查及评价”课题资助 |
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| 摘 要： | 高分辨率声学剖面资料是识别海洋灾害地质现象的有效手段。该文利用国家“12 6”专项调查在黄东海海域获得的各种声学剖面及历史资料 ,在黄东海海底及浅层识别出多种灾害地质类型 ,如潮成沙脊、沙波、古河道、断层、浅层气等。根据对它们的声学特征及成因机制的分析 ,作者认为 :潮流是黄东海海底表层灾害地质形成的主要动力因素 ;而浅层灾害地质因素以古河道、断层、浅层气等为主。
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| 关 键 词： | 黄、东海 灾害地质类型 声学反射特征 声学剖面 |
| 文章编号： | 1001-1862(2002)01-107-08 |
| 修稿时间： | 2000年12月4日 |
Types and Acoustic Reflection Characteristics of Geological Hazards in Yellow Sea and East China Sea |
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| Li Xishuang,Liu Baohua,Zheng Yanpeng,Li Sanzhong,Wang Kuiyang.Types and Acoustic Reflection Characteristics of Geological Hazards in Yellow Sea and East China Sea[J].Periodical of Ocean University of China,2002,32(1):107-114. |
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| Authors: | Li Xishuang Liu Baohua Zheng Yanpeng Li Sanzhong Wang Kuiyang |
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| Institution: | Li Xishuang 1 Liu Baohua 2 Zheng Yanpeng 2 Li Sanzhong 1 Wang Kuiyang 2 |
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| Abstract: | High-resolution acoustic profile is a good means to recognize geological hazards . Based on the previous data and different of acoustic profiles(including single-channel profiles, multifrequence profiles and Geopulse shallow penetrated profiles) obtained from the National Special Project 126, geological hazards in the shallow strata and the seabed in the Yellow Sea and the East China Sea have been recognized. They are tidal sand ridge and wave, buried palaeochannel and palaeovalley, landslide, active fault, shallow gases and so on. The internal reflection and outer shape of each geological hazard have been described in detail in this paper. From acoustic reflection characteristics the mechanics of these geological hazards can be inferred, and this will be helpful to prevent the hazards.It is the tide that cause most of geological hazards on the seabed of the Yellow Sea and the East China Sea continental shelf. |
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| Keywords: | The yellow Sea and the East China Sea types of geological hazards acoustic reflection characteristics acoustic profile |
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