科学家说,人类社会要想安定,那么,必须将目光投向海底,那里是人类巨大的矿物宝藏。一些工业国和发展中国家在向梅洋要矿物方面,已经卓有成效。海洋中有磷块岩,这是早在1873年就被人类发现了,这类化合物一般沉积在水深40～360米的海底,据海洋地矿专家估计,世界总储量有好几千亿吨,磷块岩含有20～30%的五氧化二磷,它既可做磷肥,还 Scientists say that if human society wants to be stable, then we must turn our attention to the sea bottom, where human beings are huge mineral treasures. Some industrialized countries and developing countries have been fruitful in their quest for minerals. Phosphorite rocks in the oceans, which were discovered by humans as early as 1873, are generally deposited on the seafloor at a depth of 40 to 360 meters. According to marine geological experts, the total reserves of the world are hundreds of billions of tons, Phosphorite contains 20 to 30% of phosphorus pentoxide, which can not only do phosphate fertilizer, but also