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 Nansen in the Yukon region of Canada; Mount Nansen, Mount Fridtjof Nansen and Nansen Island, all in Antarctica; as well as Nansen Island in the Kara Sea and Nansen Island in Franz Josef Land; 853 Nansenia, an asteroid; and Nansen, a crater at the Moon's north pole. His Polhøgda mansion is now home to the Fridtjof Nansen Institute, an independent foundation which engages in research on environmental, energy and resource management politics. "Just a life – the story of Fridtjof Nansen" was released, a 1968 Norwegian/Soviet biographical film with Knut Wigert as Nansen. The Royal Norwegian Navy launched the first