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众所周知,海洋储藏有丰富的有色金属矿产资源。半个纪以来,伴随人类社会经济发展和科技进步,许多国家重视开发利用这种资源。迄今已探得全球海洋矿产资源总量达到6000万亿吨,其中具有商业开采价值的铜、镍、钴等多金属结核总量为3万亿吨,太平洋区域占1.7万亿吨;含镍164亿吨,比陆地的多1000倍,可用25.3万年;钴58亿吨,比陆地的多5000倍,可用21.5万年;铜88亿吨,比陆地的多88倍,可用980年。另外,据专家计算,海水中含有金560万吨,白银5600万吨,这无疑是一笔巨大的物质财富。
As we all know, marine reserves are rich in non-ferrous metal mineral resources. Since half a century, with the social and economic development of humankind and the progress of science and technology, many countries have placed great emphasis on the exploitation and utilization of such resources. So far, the total global marine mineral resources reached 6000 trillion tons, of which the total commercial production value of polymetallic nodules such as copper, nickel and cobalt is 3 trillion tons, and the Pacific region accounts for 1.7 trillion tons. The nickel content of 164 1000 million tons more than the land 1000 times, available 253,000 years; 58 billion tons of cobalt, 5000 times more land than the available 21.5 million; 88 billion tons of copper, 88 times more than the land available 980 years. In addition, according to calculations by experts, the seawater contains 5.6 million tons of gold and 56 million tons of silver, which is undoubtedly a tremendous material wealth.