Sediments Of Northern Okinawa Trough HOBAB-S5 Core Columns Material Sources

The Okinawa trough as a transition zone between Eurasia and the Pacific Ocean, because of its very specific depositional environments, but also due to the uniqueness of its tectonic environment, and because the after effects important for mainstreaming of the Kuroshio, so far, are all Chinese and foreign researchers in the Okinawa trough region. The study on Northern Okinawa trough sediment core column density determination of moisture content and the HOBAB-S5 analysis, grain size measurement and analysis, testing and analysis of clay minerals and clay fractions of measurement and analysis of trace elements. Grain degrees of test analysis results showed that, sedimentary rocks heart column of HOBAB-S5 of grain degrees vertical up of General changes compared uniform, content to fine particles of clay and powder sand mass mainly, but in different layer segment also exists has must of difference, main performance for, bottom layer segment of average grain diameter relative more rough, description in bottom, deposition environment relative also is compared complex of. Through clay mineral of test analysis displayed, Erie stone content Supreme, cast SOAP stone of content followed by, green mud stone and kaolinite of content obviously below qián both of content; clay mineral research showed that China East River Yangtze River and yellow of into sea material is Okinawa sea slot North deposition real of main sources, and Taiwan of things Department River into sea material on sea slot deposition real of effects is weak. Trace element studies show that primary source material trough sediments of the Yellow River of the Yangtze River. REE research displayed, REE total containing equivalent of average for 133.44,LREE/HREE average for10.05, performance out light re elements content obviously to above heavy re elements content, reflect out in re elements total in the, light re elements of contribution volume far above heavy re elements, and in deposition real of re elements research in the, if light REE rich set, is description deposition real has obviously of land source features. By DF discriminant function showed that the sediment source and sediment of the Yellow Riverare more closely related.