Related by context. Frequent words. (Click for all words.) 65 Arctic seabed 61 continental shelf 52 seabed 47 Arctic Ocean 46 Beaufort Sea 44 Kuril Islands 44 Caspian Sea 43 seamounts 42 Greenland 42 Arctic 42 Spratly Islands 41 Barents Sea 41 Northwest Passage 41 Nord Stream pipeline 41 landmasses 41 UNCLOS 40 disputed islets 40 permafrost 40 Nord Stream 40 undersea 40 Trutnev 40 Chukchi Sea 40 Wilkins Ice Shelf 39 IPY 39 western Siberia 39 subsurface 39 hydrocarbon reserves 39 Ellesmere Island 39 circumpolar 39 Continental Shelf 38 gas hydrates 38 melting Arctic 38 seafloor 38 Arctic Circle 38 sedimentary basins 38 volcanic islands 38 glaciologists 38 Yamal 38 trans Caspian 38 geologically active 38 Kazakhstan Turkmenistan 37 Kurils 37 Kerch Strait 37 Skovorodino 37 polar 37 disputed islands 37 Kola Peninsula 37 territorial waters 37 glaciers 37 oceanographers 37 polar ice 37 geological formations 37 Spratlys 36 EEZ 36 Stream pipeline 36 dimensional seismic 36 North Pole 36 Baltic Sea 36 Lake Baikal 36 subduction zone 36 eastern Siberia 36 NSIDC 36 Spitsbergen 36 Spratly 36 glacier 36 sediment cores 36 territorial sovereignty 36 Kovykta 36 Greenland ice 36 Greenlanders 36 sqkm 35 Tethys 35 St. Lawrence Lowlands 35 Mining Lease 35 maritime boundary 35 Arctic Sea 35 km2 35 hydrothermal vents 35 Antarctic Peninsula 35 Senkaku Islands 35 Antarctic Ice 35 Nabucco pipeline 35 sq. km 35 Chukchi 35 sq km 35 Caspian 35 greenhouse warming 35 Pedra Branca 35 ecologically fragile 35 polar bear populations 34 coral species 34 polar caps 34 geologically 34 wireline logs 34 Bogdanchikov 34 fin whale 34 landmass 34 Nakhodka 34 Arctic tundra 34 Barents 34 Timan Pechora