Issue (Is Deep Circulation Permanent?): Link to PDF file of "Paleoceanographic Reconstruction Study in the North Pacific Ocean - Ocean circulation changes since the last glacial period". Marine Research, OKAZAKI (2012)

It indicates that the North Pacific temporarily replaced the North Atlantic during the last deglaciation as the starting point for the subduction of the deep circulation.

Click on Link to PDF file of "Paleoceanographic Reconstruction Study in the North Pacific Ocean - Ocean circulation changes since the last glacial period". Marine Research, OKAZAKI (2012) to open the resource.