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随着近代海洋调查的深入,人们在海洋底部发现了大量的矿产资源。当前已有许多国家正对海底石油、煤、铁、砂矿等进行开采,获得了巨大的经济效益。预计在不久的将来,海底的锰、铜、镍、钴、金、银等金属矿产也将被利用。大洋底的锰结核 1872—1876年英国“格罗玛挑战者号”考察船发现了海底的锰结核,但当时并未引起重视。后来美、日、西德、丹麦等国对洋底进行了多次调查,发现在一些海区,锰结核的分布面积之大、金属含量之高、蕴藏量之丰富令人瞠目。锰结核是粒径1—30厘米,外形浑圆,内部常成胶状结构的氧化锰和氢氧化锰矿石。它不仅含有高
With the deepening of modern marine surveys, a large amount of mineral resources have been found at the bottom of the ocean. At present, many countries are already mining submarine oil, coal, iron and sand mines and have obtained enormous economic benefits. Expected in the near future, the sea of manganese, copper, nickel, cobalt, gold, silver and other metal minerals will also be used. Manganese nodules on the ocean floor 1872-1876 British “Grottess Challenger” research vessel found the bottom of the manganese nodules, but did not pay attention. Later, the United States, Japan, West Germany, Denmark and other countries on the ocean floor conducted several surveys and found that in some sea areas, the distribution of manganese nodules of large area, high metal content, the abundance of impressive. Manganese nodules are 1-30 cm in diameter, rounded shape, the internal often gel structure of manganese oxide and manganese hydroxide ore. It contains not only high