A major goal of the expedition PS141 was to advance our process-oriented understanding of Quaternary climatic and oceanographic processes, and their interaction with the cryosphere on orbital to submillennial time-scales. Our particular focus rests on the Holocene, deglacial warming phases and past warmer-than-present time intervals in the East Antarctic ice-ocean-climate system. We performed extensive survey and sediment coring with sites distributed in water depths from the shallow shelf down to depths of 4,000 m in the open ocean. Sediment coring during expedition PS141 was performed by means of AWI's gravity corer (GC) and piston corer (PC). Gravity core PS141_49-3 was recovered from the East Antarctic slope and shelf area.