Geology of the Pacific Ocean Geology of the Pacific Ocean The Pacific Ocean evolved in the Mesozoic from the Panthalassic Ocean, which had formed when Rodinia rifted apart around 750 Ma. The first ocean floor which is part of the current Pacific Plate began 160 Ma to the west of the central Pacific and subsequently developed into the largest oceanic plate on Earth. The tectonic plates continue to move today. The slowest spreading ridge is the Gakkel Ridge on the Arctic Ocean floor, which spreads at less than , while the fastest, the East Pacific Rise near Easter Island, has a spreading rate of over
Fridtjof Nansen had spoken out on the issue on several occasions in defence of Norway's interests. It seemed, early in the 20th century that agreement between the two countries might be possible, but hopes were dashed when negotiations broke down in February 1905. The Norwegian government fell, and was replaced by one led by Christian Michelsen, whose programme was one of separation from Sweden. In February and March Nansen published a series of newspaper articles which placed him firmly in the separatist camp. The new prime minister wanted Nansen in the cabinet, but Nansen had no political ambitions. However, at Michelsen's request