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利用1998年5月航次中所采集的南黄海海域7个断面、67个站位、5个层次的284个悬浮体样品和64个底质沉积物样品,分析测定了样品的悬浮体浓度和悬浮体与底质沉积物中的有机碳稳定同位素组成,以研究悬浮体和沉积物的物质来源和运移过程. 由悬浮体浓度和颗粒有机碳δ~(13)C值的分布特征分析得出了南黄海沉积物搬运的主要格局.由此格局可以认定,在陆源物质向南黄海中部深水区的输送过程中底层起着比表层更为重要的作用.黄海环流是决定南黄海沉积物搬运格局的一个重要控制因素.由沉积有机质的碳同位素信号证实,山东水下三角洲高沉积速率沉积物的主要物质来源是现代黄河物质.在南黄海深水区的陆源沉积物主要来自废黄河物质和现代黄河物质,现代长江物质所占比例相对较少.来自朝鲜半岛的陆源物质其数量和影响范围都是有限的.由悬浮体和碳稳定同位素得出的结论得到了另一个独立的物源指示剂——多环芳烃的进一步证明.
Based on the data collected from May 1998 voyage of seven sections, 67 stations, 284 sediment samples at 5 levels and 64 sediment samples in the South Yellow Sea, the suspended matter concentration and suspended matter And organic carbon stable isotopes in soils and soils to study the source and transport of suspended matter and sediment.Analysis of the distribution of δ ~ (13) C values of suspended solids and particulate organic carbon The main pattern of the sediment transport in the southern Yellow Sea, the pattern can be concluded that the ground floor plays a more important role than the surface layer in the transport of terrestrial materials to the deep-water area in the central South Yellow Sea.The circulation of the Yellow Sea determines the sediment transport pattern in the southern Yellow Sea Is confirmed by the carbon isotope signal of sedimentary organic matter, and the main source of sediment from the high depositional velocity sediment in the submarine delta of Shandong is the modern Yellow River sediment.The terrigenous sediments in the deep waters of the South Yellow Sea mainly come from the waste Yellow River and the modern Yellow River Material, the proportion of material in the modern Yangtze River is relatively small, the quantity and influence range of terrestrial material from the Korean peninsula is limited, the stability of the suspension and carbon Isotope conclusion was obtained another independent source indicator - further proof of polycyclic aromatic hydrocarbons.