Sediment flux and source in northern Yellow Sea by 210Pb technique

LI Fengye; LI Xuegang; SONG Jinming; WANG Guizhi; CHENG Peng; GAO Shu

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Sediment flux and source in northern Yellow Sea by 210Pb technique

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Sedimentation of fine-grained deposits on coastal zones and continental shelves are important because of the association with chemical pollutants, and the implication to the impact on biological processes, the stratigraphic correlations, and changes in sedimentary environments. The Yellow Sea continental shelf receives large quantities of sediment from the Huanghe (Yellow) River. Unfortunately, little attention has been yet paid to the sedimentation on the shallow shelf and its features, and the vertical sediment flux in the area is poorly understood. In this study, nine cores were collected in northern Yellow Sea by the R/V Science 1 in September, 1998 and 1999 to examine the sedimentation rate, sediment flux and the provenance with 210Pb analysis. The 210Pb activity profiles showed that the vertical sediment flux ranged from 0.06 to 1.18 g/cm2·a in the region. In central part of the area, there was a patch of fine-grained mud, with the flux below 0.33 g/cm2·a. Most profiles were featured in two-segment model. Differences in the profiles reflected spatial and temporal variations in hydrodynamic and sedimentary processes. In order to determine the provenance and sedimentary setting in the area, the geochemistry of Ca, Fe, Sr, Cu, Ti and Rb in 11 surficial sediment samples were studied, which showed that in the central northern Yellow Sea, the mud deposit was from multi-source but mainly from the Huanghe River.

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来源
《中国海洋湖沼学报（英文版）》 |2006年第3期|255-263|共9页
作者
LI Fengye; LI Xuegang; SONG Jinming; WANG Guizhi; CHENG Peng; GAO Shu;
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作者单位

Key Laboratory of Marine Ecology and Environmental Science,the Chinese Academy of Sciences,Qingdao 266071,China;

Key Laboratory of Marine Ecology and Environmental Science,the Chinese Academy of Sciences,Qingdao 266071,China;

Key Laboratory of Marine Ecology and Environmental Science,the Chinese Academy of Sciences,Qingdao 266071,China;

Key Laboratory of Marine Ecology and Environmental Science,the Chinese Academy of Sciences,Qingdao 266071,China;

Key Laboratory of Marine Ecology and Environmental Science,the Chinese Academy of Sciences,Qingdao 266071,China;

Key Laboratory of MOE for Coast and Island Development,Nanjing University,Nanjing,210093,China;

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原文格式 PDF
正文语种 chi
中图分类海洋学;
关键词
210Pb; Vertical sediment flux; Sediment source; The Yellow Sea;

机译：210Pb;垂直泥沙通量;泥沙源;黄海;

Sediment flux and source in northern Yellow Sea by 210Pb technique

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