The sources of sediments mainly are terrigenous sediments,biogenic sediments and volcanic sediments in the suvey area and they are mostly from the Kamchatka Peninsula in the east of USSR and Aleutian Islands.

• 另外 ,该区沉积物的物源主要为陆源沉积物、生物源沉积物和火山源沉积物 ,它们主要来源于俄罗斯东部的勘察加半岛、美国的阿拉斯加半岛及阿留申群岛