Bouvet Island of establishing a manned meteorological radio station, but a suitable location could not be found. By then both the flagpole and hut from the previous year had been washed away. The Third "Norvegia" Expedition, led by Hjalmar Riiser-Larsen, arrived the following year and built a new hut at Kapp Circoncision and on Larsøya. The expedition carried out aerial photography of the island and was the first Antarctic expedition to use aircraft. The "Dependency Act", passed by the Parliament of Norway on 27 February 1930, established Bouvet Island as a dependency, along with Peter I Island and Queen Maud Land. The
Bouvet Triple Junction Conrad transform and Bouvet transform. Conrad transform is named after . Bouvet Island is the highest point on the southern wall of the Bouvet transform. Up to 10 million years ago the Mid-Atlantic Ridge and the two deep transform valleys of Conrad and Bouvet met in one point. Thus the triple junction was of the ridge-fault-fault (RFF) type. Conrad transform, stretching to the west, connected the end of the Mid-Atlantic Ridge to the South American-Antarctic Ridge. Bouvet transform linked it to the Southwest Indian Ridge on the eastern side. Currently Conrad transform and Bouvet transform are no longer connected to