“…Of the diverse sections documented in these efforts, only the CIROS-2 drillcore from McMurdo Sound (Winter and Harwood, 1997;Winter et al, 2012a) and possibly the Bardin Bluffs Formation of the Pagodroma Group in the Amery Oasis (Whitehead et al, 2004) overlap with the late Pliocene PRISM interval of focus. However, these proximal records are discontinuous due to sediment removal by the very glacial fluctuations we seek to reconstruct, and paleoenvironmental interpretations have been drawn from diatom-bearing mudstone, sandstone, and diamict, in contrast to the rich diatomites preserved in distal diatom-ooze belt settings (Burckle, 1984;Burckle and Cirilli, 1987;Barron, 1996b).…”