It is shown from the analysis results of grain size data that the sediments from the northern Okinawa Trough are mixture of terrigenous materials and volcanic ash during the Holocene epoch.

沉积物粒度数据的端员分析结果表明，冲绳海槽北部全新世沉积物中的硅酸盐碎屑是由陆源碎屑物质和火山灰按不同的比例混合而成的。

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Because of the effects of hydrodynamics and sediment grain size, the contents of different forms of nitrogen in surface sediments at stations in the Yellow Sea Trough were higher.

受水动力及沉积物粒度的影响，不同形态氮在黄海槽内各站位沉积物中的含量较高。

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