冬、夏季渤黄海表层沉积物粒度特征差异及其成因分析  

Particle size differences of surface sediments in the Bohai Sea and the Yellow Sea between winter and summer and the genetic analysis

作　　者：王晓磊[1] 冯秀丽[1] 刘潇[1] 刘杰[2] 权永峥 

机构地区：[1]中国海洋大学海洋地球科学学院,山东青岛266100 [2]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《海洋科学》2015年第8期63-69,共7页Marine Sciences

基　　金：海洋公益性行业科研专项(201005009)

摘　　要：对渤海、黄海海域冬、夏两季表层沉积物取样,通过激光粒度仪得出粒度参数,进而分析讨论冬季强的沿岸流的作用、黄海暖流、夏季冷水团的影响以及地形、海底地貌特征、物源特征等对表层沉积物分布造成的影响。结果表明,冬、夏两季渤黄海表层沉积物粒度特征总体上相差不大,但部分海域如渤海中北部、渤海中南部、北黄海西北部近渤海海峡北部海域、山东半岛东北部海域、南黄海中部沉积物粒度特征存在明显季节性差异。表层沉积物粒度特征季节性差异与地形地貌、沿岸流、黄海暖流、黄海冷水团及物源密切相关。本研究对于探讨渤黄海不同季节表层沉积物沉积特征的影响机制、了解渤黄海区海洋动力过程的季节差异有积极意义。In this paper, sediment samples were harvested from surface sediments of the central area of the Yellow Sea and the Bohai Sea in both winter and summer. laser particle analyzer was used to get grain size parameters and the influences of strong coastal current in winter, warm current of the Yellow Sea, cold water mass of the Yellow Sea, topographic feature, geomorphic feature and the source of sediment on the surface sediment distribution were analyzed. The results show that there is not much difference in the grain size characteristics of surface sediments of the Bohai Sea and the Yellow Sea between winter and summer. But there is still some obvious seasonal differences in surface sediments in some parts of the seas such as the central and northern of the Bohai Sea, the central and southern part of the Bohai Sea, the southwest part of the Bohai Sea which is near the Bohai Straits, the northwest part of the north Yellow Sea which is near the Bohai Straits, the northeast part of the Shandong Peninsula, and the central part of the south Yellow Sea. The seasonal differences in surface sediments are closely related to the landform, geomorphic, coastal cur-rent, warm current of the Yellow Sea, cold water mass of the Yellow Sea and the source of sediment.

关 键 词：粒度特征 表层沉积物 差异区 黄海暖流 黄海冷水团 

分 类 号：P736.21[天文地球—海洋地质]