History of South Georgia and the South Sandwich Islands in the Arctic claiming Jan Mayen and Sverdrup Islands, but also in Antarctica. Norway claimed Bouvet Island and looked further south, formally inquiring with Foreign Office about the international status of the area between 45° and 65° south latitude and 35° and 80° west longitude. Following a second such diplomatic démarche by the Norwegian Government dated 4 March 1907, Britain replied that the areas were British based on discoveries made in the first half of the 19th century, and issued the 1908 Letters Patent incorporating the British Falkland Islands Dependencies with a permanent local administration in Grytviken established in 1909.
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