海洋雾状层既是陆源物质进入海底的输送通道，又是海洋水体中沉降颗粒及底部再悬浮颗粒物的停留场所。

The ocean nepheloid layers are both the pathway for transporting the terrigenous materials to the seabed and the residence place of sinking and resuspended particulate matters.

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沉积物类型极大地影响着放射虫的分布，放射虫的丰度和分异度明显地随粒度的增大和陆源物质含量的增加而减小。

The distribution pattern is also strongly affected by the sediment type, and radiolarian abundance and diversity decrease with the increase of grain size and terrigenous material input.

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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。

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.

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