Ian Bailey, Sidney Hemming, Brendan T Reilly, Gavyn Rollinson, Trevor Williams, Michael E Weber, Maureen E Raymo, Victoria L Peck, Thomas A Ronge, Stefanie Brachfeld, Suzanne O'Connell, Lisa Tauxe, Jonathan P Warnock, Linda Armbrecht, Fabricio G Cardillo, Zhiheng Du, Gerson Fauth, Marga Garcia, Anna Glueder, Michelle Guitard, Marcus Gutjahr, Iván Hernández-Almeida, Frida S Hoem, Ji-Hwan Hwang, Mutsumi Iizuka, Yuji Kato, Bridget Kenlee, Yasmina M Martos, Lara F Pérez, Osamu Seki, Shubham Tripathi, Xufeng Zheng
Ice loss in the Southern Hemisphere has been greatest over the past 30 years in West Antarctica. The high sensitivity of this region to climate change has motivated geologists to examine marine sedimentary records for evidence of past episodes of West Antarctic Ice Sheet (WAIS) instability. Sediments accumulating in the Scotia Sea are useful to examine for this purpose because they receive iceberg-rafted debris (IBRD) sourced from the Pacific- and Atlantic-facing sectors of West Antarctica. Here we report on the sedimentology and provenance of the oldest of three cm-scale coarse-grained layers recovered from this sea at International Ocean Discovery Program Site U1538...
July 2022: Paleoceanography and paleoclimatology