The Pacific waters entering from the Bering Strait entrain a large amount of the Yukon River materials; its northward dispersal possibly cause sediments in the central part of the Chukchi Sea to enrich smectite and elements Na, Mg, Ca, Zn, Sr etc.

• 携带大量育空河物质的太平洋水自白令海峡进入研究区后，横穿楚科奇海陆架向北扩散，导致楚科奇海中部沉积物富含蒙皂石，富Na、Mg、Ca、Zn、Sr等。