Antarctic climate evolution during the Quaternary (last 2.6 Ma) from continental margin, Southern Ocean and ice core records

摘要

A picture of Antarctica's Quaternary climate evolution was constructed from the upper the 600 m of the ANDRILL Program's McMurdo Ice Shelf sediment core-AND-1B, and was discussed within the context of other Antarctic margin and southern ocean drillcore (ODP), and continental ice core records (Vostok, EP1CA). The records show the long term evolution of the West Antarctic Ice Sheet (WAIS) from a small, dynamic, terrestrially-based feature during the Early Pliocene (5-3-Ma), through to its present large, cold and more persistent state (2.5-0-Ma).