Postage stamps and postal history of the Gilbert and Ellice Islands Postage stamps and postal history of the Gilbert and Ellice Islands The first mail service to the Gilbert and Ellice Islands was ad hoc, depending on which ships were calling at the various islands. A regular service began in 1911; Edward VII postage stamps of Fiji were overprinted and put on sale on 1 January of that year, followed in March by a set of four stamps depicting a "Pandanus" tree, inscribed . These were followed in 1912 by George V stamps of the common type, inscribed . A new definitive series came out starting 14 January 1939, featuring local
Geology of the Pacific Ocean Plate in the north, the Cocos Plate off today's Central America, and the Nazca and Phoenix Plates in the southern Pacific. Charles Darwin had proposed a theory of the slow subsidence of the ocean floor based on his studies of Pacific oceanic islands, seamounts (underwater volcanoes) and guyots (flat-topped seamounts). His observations have been verified and expanded in the development of plate tectonic theory. The tectonic plates continue to move today. The slowest ridge spreading rate is across the Gakkel Ridge in the Arctic Ocean which separates at less than 2.5 cm/yr while the fastest, across the East Pacific Rise