Arctic Ocean gas reserves, and the Chukchi shelf forms the border between Russian and the United States as stated in the USSR–USA Maritime Boundary Agreement. The whole area is subject to international territorial claims. An underwater ridge, the Lomonosov Ridge, divides the deep sea North Polar Basin into two oceanic basins: the Eurasian Basin, which is between deep, and the Amerasian Basin (sometimes called the North American, or Hyperborean Basin), which is about deep. The bathymetry of the ocean bottom is marked by fault block ridges, abyssal plains, ocean deeps, and basins. The average depth of the Arctic Ocean is . The
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