Fig. 5
From: Sea ice dynamics across the Mid-Pleistocene transition in the Bering Sea
Schematic overview of the twofold change in sea ice dynamics across the Mid-Pleistocene in the Bering Sea. Simplified schematic of sea ice changes in the Bering Sea across the Mid-Pleistocene showing the sea ice dynamics across the three intervals identified as the early-mid Pleistocene (1.22−1.0 Ma), an interim state (1.0−0.95 Ma), and the mid-to-late Pleistocene (0.95−0.8 Ma and 0.5–0.3 Ma). a Sea ice dynamics across glacial intervals of the respective time period. b Sea ice dynamics across interglacial intervals of the respective time period. Maps were created using Ocean Data View69. Glacial sea level is based on δ18Oseawater from DSDP Site 60748 and ODP Site 112350 with the coastline representing the average minimum sea level across all glacial intervals of that period. The mid-to-late Pleistocene glacial sea ice schematic is additionally supported by studies from the Umnak Plateau44 and the western Bering Sea21, 67 across Termination I (blue dots). Continental glacier advances are simplified schematics based on maximum Pleistocene glacier extent in Alaska70
