Peter I Island Peter I Island Peter I Island () is an uninhabited volcanic island in the Bellingshausen Sea, from Antarctica. It is claimed as a dependency of Norway, and along with Bouvet Island and Queen Maud Land comprises one of the three Norwegian dependent territories in the Antarctic and Subantarctic. Peter I Island is long and , slightly larger than Staten Island. The tallest peak is the ultra and tall Lars Christensen Peak. Nearly all of the island is covered by a glacier and it is surrounded most of the year by pack ice, making it inaccessible during these times. There is
South American–Antarctic Ridge in the Mid- to Late Jurassic in what is today the Mozambique Basin east of Africa, whereas the South American and African plates started to brake apart during the Early Cretaceous. Between these events neither the Mid-Atlantic Ridge nor the Bouvet Triple Junction existed and the SAAR formed a continuous ridge together with the Southwest Indian Ridge. Around 106 Ma the eastern end of the Falkland Plateau separated from the Agulhas Bank, opening the South Atlantic which, however, remained an enclosed basin north of the Falkland Plateau until 85–83 Ma. Around 97 Ma the Northeast Georgia Rise (today north of