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首页> 外文期刊>Chinese science bulletin >Sources and transportation of suspended matter and sediment in the southern Yellow Sea: Evidence from stable carbon isotopes
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Sources and transportation of suspended matter and sediment in the southern Yellow Sea: Evidence from stable carbon isotopes

机译：黄海南部悬浮物质和沉积物的来源和运输：来自稳定碳同位素的证据

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摘要

The concentrations of total suspended matter (TSM) and the compositions of organic stable carbon isotopes of TSM and bottom sediments were analyzed to study the sources of TSM and sediments and the transportation processes. For this study, 284 TSM samples and 64 sediment ones taken from 67 stations along 7 transects and in 5 layers were collected in the southern Yellow Sea on the cruise in May, 1998. The main sediment transportation pattern in the southern Yellow Sea was obtained by analyzing the distribution characteristics of TSM concentration and particulate organic carbon δ~(13)C values. It was confirmed from the pattern that the bottom layer plays a more important role than the surface one in the transportation processes of terrigenous material to the central deep-water area of the southern Yellow Sea. The Yellow Sea circulation is an important control factor in determining the sedimentation rate in the Shandong subaqueous delta originated from the modern Yellow River. The terrigenous sediments in the deep-water area of the southern Yellow Sea are mainly from the abandoned Yellow River and the modern Yellow River, and a small portion of them are from the modern Yangtze material. The amount of terrigenous material from Korean Peninsula and its influence range are relatively limited. The conclusions derived from TSM and stable carbon isotopes were further confirmed by another independent material source tracer-PAHs.
机译：分析了TSM和底部沉积物的总悬浮物（TSM）浓度以及有机稳定碳同位素的组成，以研究TSM和沉积物的来源以及运输过程。为了进行这项研究，1998年5月，在黄海南部航行期间，从7个样带的67个台站，分5层采集了284个TSM样本和64个沉积物。分析了TSM浓度和颗粒有机碳δ〜（13）C值的分布特征。从模式中可以确认，在陆源物质向黄海南部中部深水区域的输送过程中，底层比表层更重要。黄海环流是决定现代黄河源山东水下三角洲沉积速率的重要控制因素。黄海南部深水区的陆源沉积物主要来自废弃的黄河和现代黄河，其中一小部分来自现代扬子。来自朝鲜半岛的陆源物质的数量及其影响范围相对有限。另一个独立的物质来源示踪剂PAHs进一步证实了源自TSM和稳定碳同位素的结论。

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