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王浩森,张建兴,宋永东,庄丽华,栾振东,阎军.渤海中部海域海底地形地貌特征及其影响因素分析[J].广西科学院学报,2022,38(1):31-39. [点击复制]
- WANG Haosen,ZHANG Jianxing,SONG Yongdong,ZHUANG Lihua,LUAN Zhendong,YAN Jun.Analysis of Seabed Topographic and Geomorphologic Features and Influencing Factors in the Middle Area of Bohai Sea[J].Journal of Guangxi Academy of Sciences,2022,38(1):31-39. [点击复制]
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| 渤海中部海域海底地形地貌特征及其影响因素分析 |
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王浩森1,2, 张建兴1,3, 宋永东1,3, 庄丽华1,3, 栾振东1,2,3, 阎军1,3
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| (1.中国科学院海洋研究所, 中国科学院海洋地质与环境重点实验室, 山东青岛 266071;2.中国科学院大学, 北京 100049;3.中国科学院海洋大科学研究中心, 山东青岛 266071) |
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| 摘要: |
| 渤海中部海域位于三湾(渤海湾、莱州湾、辽东湾)交汇处，形成与演化历史悠久，沉积物源丰富，其内部蕴含着丰富的地质信息。本研究基于多年来采集和搜集的高精度地形地貌数据、浅地层剖面数据和沉积物样品的测试分析数据，精细刻画了渤海中部海域海底地形地貌特征，并对其影响因素进行了分析。研究表明，渤海中部海域海底地形总体上呈现中间低、南北两侧高的特征，北部区域地形复杂，南部区域地形较平坦。根据海底地貌特点，本文将研究区海底地貌单元划分为陆架侵蚀洼地、陆架堆积平原及海湾堆积平原。地貌形态是区域地质构造运动、海平面变化、现代海洋水动力、沉积物来源等共同作用的结果。研究渤海中部海域海底地形地貌特征，有助于深化对其地质构造演化的认识，并且对海洋工程建设、海洋牧场开发、海洋资源利用及海洋经济发展具有重要意义。 |
| 关键词: 渤海中部海域 多波束 海底地形 地貌类型 分布特征 |
| DOI：10.13657/j.cnki.gxkxyxb.20220421.007 |
| 投稿时间：2022-01-07 |
| 基金项目:中国科学院战略性先导科技专项(E0B435101T，XDA22050502)和中国科学院关键技术人才项目(2018-2021)资助。 |
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| Analysis of Seabed Topographic and Geomorphologic Features and Influencing Factors in the Middle Area of Bohai Sea |
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WANG Haosen1,2, ZHANG Jianxing1,3, SONG Yongdong1,3, ZHUANG Lihua1,3, LUAN Zhendong1,2,3, YAN Jun1,3
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| (1.Key Laboratory of Marine Geology and Environment, Institute of Oceanology, CAS, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, Shandong, 266071, China;2.University of Chinese Academy of Sciences, Beijing, 100049, China;3.Center For Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong, 266071, China) |
| Abstract: |
| The central waters of Bohai Sea is located in the intersection of the three bays (Bohai Bay, Laizhou Bay, Liaodong Bay), with a long history of formation and evolution, multiple sediment sources and rich geological information.Based on the high-precision topographic and geomorphologic data, shallow stratigraphic profile data and test analysis data of sediment samples collected over the years, this study finely described the topographic and geomorphologic features of the seabed in the central Bohai Sea, and analyzed its influencing factors.The research shows that the seabed topography of the central Bohai Sea is generally low in the middle and high on the north and south sides.The topography of the northern region is complex, and the southern region is relatively flat.According to the characteristics of submarine geomorphology, the submarine geomorphologic units in the study area are divided into shelf erosion depression, shelf accumulation plain and bay accumulation plain.Geomorphology is the result of the combined action of regional geological tectonic movements, sea level changes, modern marine hydrodynamics, and sediment sources.Studying the topographic and geomorphologic features of the seabed in the central Bohai Sea is helpful to deepen the understanding of the evolution of its geological structure, and is of great significance to the construction of marine engineering, the development of marine pastures, the utilization of marine resources and the development of marine economy. |
| Key words: central Bohai Sea multi-beam submarine topography type of landforms characteristics of distribution |
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