Volume 382: Iceberg Alley and Subantarctic Ice and Ocean Dynamics
Michael E Weber, Maureen E. Raymo, Victoria L. Peck, Trevor Williams, Expedition 382 Scientists
Abstract
International Ocean Discovery Program Expedition 382, Iceberg Alley and Subantarctic Ice and Ocean Dynamics, investigated the long-term climate history of Antarctica, seeking to understand how polar ice sheets responded to changes in insolation and atmospheric CO 2 in the past and how ice sheet evolution influenced global sea level and vice versa. Five sites (U1534-U1538) were drilled east of the Drake Passage: two sites at 53.2S at the northern edge of the Scotia Sea and three sites at 57.4-59.4S in the southern Scotia Sea. We recovered continuously deposited late Neogene sediments to reconstruct the past history and variability in Antarctic Ice Sheet (AIS) mass loss and associated changes in oceanic and atmospheric circulation.