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
Nansen passport Nansen passport Nansen passports, originally and officially stateless persons passports, were internationally recognized refugee travel documents from 1922 to 1938, first issued by the League of Nations to stateless refugees. They quickly became known as "Nansen passports" for their promoter, the statesman and polar explorer Fridtjof Nansen. The end of World War I saw significant turmoil, leading to a refugee crisis. Numerous governments were toppled, and national borders were re-drawn, often along generally ethnic lines. Civil war broke out in some countries. Many people left their homes because of war or persecution or fear thereof. The upheaval resulted in many