Gilbert and Ellice Islands Ellice Islands", which replaced laws created during the BWTP. The Phoenix Islands were added to the colony in 1937. Banaba Island (Ocean Island) remained the headquarters of the colony until the British evacuation in 1942 during the Pacific War when Ocean Island and the Gilbert Islands were occupied by the Japanese. The United States forces landed in Funafuti on 2 October 1942 and on Nanumea and Nukufetau in August 1943 and constructed an airfield on each island and other bases. The atolls of Tuvalu acted as a staging post during the preparation for the Battle of Tarawa and the Battle
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