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
Eva Nansen ski costume for the time, designed by Nansen and made by her, in which her skirt only reached slightly below the knees. In the article "Skiløbningen", published in the newspaper "Verdens Gang" in March 1893, she argued against those who moralized against female skiing. Eva Nansen Eva Helene Nansen (née Sars; 17 December 1858 – 9 December 1907) was a celebrated Norwegian mezzo-soprano singer. She was also a pioneer of women's skiing. Born in Christiania (now Oslo), she was a daughter of priest and professor of zoology Michael Sars (1805–1869) and his wife Maren Sars (1811–1898), and sister to biologist