Japanese have discovered enough of rare-earth metals (REMs) to satisfy global for up to 700 years. Oceanographers surveyed the deep-sea on the Pacific Ocean floor near Japan's Ogasawara Islands, which are about 2,000 kilometers of Tokyo. Scientists say the minerals find, "has the to supply these metals on a semi-infinite to the world". Researchers from Waseda University and the University of Tokyo estimate the they mapped contains more than 16 million tons of rare-earth metals. They added that the area offers "great potential as ore deposits for some of the most important elements in modern ".
A rare-earth metal is one of a of seventeen chemical elements in the periodic . They have what many of us would consider to be unknown names, like europium, promethium scandium and terbium. The uses, applications, and of rare-earth elements have greatly increased with our on high-tech products. They are widely used in the production of electric motors for vehicles, wind turbines, hard disc drives, portable electronics, microphones, speakers and a whole of other products. Around 90 per cent of the world's of REMs used to manufacture advanced electronics comes from China. The discovery near Japan could bring down .