Figure F1. The present-day Antarctic ice sheet with ice flow lines, from Barker et al. (1998), modified to show recent ODP drill sites off the Antarctic Peninsula (AP) and Prydz Bay (PB) and drill sites off Cape Roberts (CR) in the Ross Sea. Also marked are the Transantarctic Mountains (TAM) along the western edge of the Ross Sea (ERS), the Ellsworth Mountains (EM) south of the Weddell Sea, the interior Gamburtsev Mountains (GaM), and the continental margin off Wilkes Land (WL).