Increases in fine-and silt-grained terrigenous components from MIS 5.3 to the Middle Holocene imply that sea ice on the Bering Sea slope extended continuously in a cooling climate.

• MIS5.；3期至中全新世；不断增加的陆源砂级和粉砂级颗粒组分说明随着气候的逐渐变冷；陆架海冰在不断扩张