论文部分内容阅读
The concentrations of total suspended matter(TSM) and the compositions of organic stable carbon iso-topes of TSM and bottom sediments were analyzed to studythe sources of TSM and sediments and the transportationprocesses. For this study, 284 TSM samples and 64 sedimentones taken from 67 stations along 7 transects and in 5 layerswere collected in the southern Yellow Sea on the cruise inMay, 1998. The main sediment transportation pattern in thesouthern Yellow Sea was obtained by analyzing the distribu-tion characteristics of TSM concentration and particulateorganic carbon δ~(13)C values. It was confirmed from the pat-tern that the bottom layer plays a more important role thanthe surface one in the transportation processes of terrigenousmaterial to the central deep-water area of the southern Yel-low Sea. The Yellow Sea circulation is an important controlfactor in determining the sediment transportation pattern inthe southern Yellow Sea, The carbon isotope signals of sedi-mentary organic matter confirmed that the main material insediments with high sedimentation rate in the Shandongsubaqueous delta originated from the modern Yellow River.The terrigenous sediments in the deep-water area of thesouthern Yellow Sea are mainly from the abandoned YellowRiver and the modern Yellow River, and a small portion ofthem are from the modern Yangtze material. The amount ofterrigenous material from Korean Peninsula and its influen-ce range are relatively limited. The conclusions derived fromTSM and stable carbon isotopes were further confirmed byanother independent material source tracer-PAHs.
The concentrations of total suspended matter (TSM) and the compositions of organic stable carbon iso-topes 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 sedimentones from 67 stations along 7 transects and in 5 layers 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 the distribu-tion characteristics of TSM concentration and particulate organic carbon δ ~ (13) C values. It was confirmed from the pat-tern that the bottom layer plays a more important role thanthe surface one in the transportation processes of terrigenousmaterial to the central deep-water area of the southern Yel-low Sea. The Yellow Sea circulation is an important controlfactor in determining the sediment transportation pattern inthe southern Yellow Sea, The carbon isotope signals of sedi-mentary organic matter confirmed that the main material insediments with high sedimentation rate in the Shandongsubaqueous 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 YellowRiver and the modern Yellow River, and a small section of the are from the modern Yangtze material. The amount of terrigenous material from Korean Peninsula and its influential ce range are relatively limited. The values derived fromTSM and stable carbon isotopes were further confirmed byanother independent material source tracer-PAHs.