海洋学研究 ›› 2015, Vol. 33 ›› Issue (2): 40-46.DOI: 10.3969/j.issn.1001-909X.2015.02.006

• 研究论文 • 上一篇    下一篇

南黄海太阳沙西侧潮流脊槽的沉积物分布特征和沉积环境演变

刘阿成1,2, 陆琦1, 王百顺1, 张杰1   

  1. 1.上海东海海洋工程勘察设计研究院,上海200137;
    2.国家海洋局 东海信息中心,上海200136
  • 收稿日期:2014-12-12 修回日期:2015-05-07 出版日期:2015-06-15 发布日期:2022-11-25
  • 作者简介:刘阿成(1950-),男,浙江岱山县人,教授级高级工程师,主要从事海洋地质地球物理研究和海洋工程勘测。E-mail:lac2004@163.com
  • 基金资助:
    国家海洋公益性行业科研专项项目资助(201315026)

Sedimentary distribution and evolution of sedimentary environment in the tidal sand ridges and troughs west of Taiyangsha Ridge in the southern Yellow Sea

LIU A-cheng1,2, LU Qi1, WANG Bai-shun1, ZHANG Jie1   

  1. 1. Shanghai East Sea Marine Engineering Survey and Design Institute, Shanghai 200137, China;
    2. East Sea Information Center of State Oceanic Administration, Shanghai 200136, China
  • Received:2014-12-12 Revised:2015-05-07 Online:2015-06-15 Published:2022-11-25

摘要: 对南黄海太阳沙西侧潮流脊槽区进行了底质调查,采用密集站位的振动活塞柱状沉积物采样器取样。根据粒度分析结果,比较精细地研究了厚度约2~3 m浅表层沉积物的空间分布特征。结果表明:表层沉积物中,细砂主要分布在潮流脊和岸滩上,其它较细的沉积类型主要分布于潮流槽内,呈显“脊砂槽泥”的沉积地貌基本特征。同时,沙脊上的表层细砂的分布范围明显与沙脊至海岸的距离有关,除了潮流的影响外,主要与外侧沙脊的消浪作用有关。另外,根据表层沉积物分布的沉积地貌特征,探讨了潮流脊槽的沉积环境演变。

关键词: 潮流沙脊, 潮流槽, 沉积物分布, 沉积环境演变, 南黄海

Abstract: Sediment survey was carried out in the tidal sand ridges and troughs west of Taiyangsha Ridge in the southern Yellow Sea. Samples were taken with vibrating piston sampler in dense stations. Based on results of grain size analyses, the space distribution characteristics of the surface and shallow sediments with thickness some 2~3 m were elaborately studied. The results show that fine sands of the surface sediments mainly distribute on the tidal sand ridges and coast beach, while other finer sediment types mainly distribute in tidal troughs, appearing a basic feature of sediment-morphology pattern of “ridge-sand and trough-soil”. Meanwhile, the distribution scope of the surface fine sands on the tidal sand ridges is clearly related to the distance between the ridges and the coast. Apart from the influence of tidal currents, this is mainly due to the wave energy consumption by the outer ridges. Based on the above characteristics of sediment-morphology pattern, evolution of sedimentary environment was also discussed.

Key words: tidal sand ridges, tidal troughs, sedimentary distribution, evolution of sedimentary environment, the southern Yellow Sea

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