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美国和日本等发现在世界海底蕴藏着大量铁锰结核和硫化矿床,海洋地质学家们认为这是一项振奋人心的发现。这可视为现代最有发展前景的黑色和有色金属的重要矿源之一。其主要开采对象则是铁锰结核和含矿淤泥。铁锰结核的聚集形式,从5～40公斤/米~2,平均10～14公斤/米~2,颗粒规格在200毫米以内。自由赋存在海洋底部,70%的矿物是10～80毫米的岩球,体重2200公斤/米~3。矿物颗粒和层间凝聚力约1千帕。距海底层
The United States and Japan have found that there are a large number of ferromanganese nodules and sulphide deposits on the seabed of the world. Marine geologists think this is an exciting discovery. This can be regarded as one of the most promising modern sources of ferrous and non-ferrous metals. Its main mining targets are ferromanganese nodules and ore-bearing silt. Ferromanganese nodule aggregation form, from 5 to 40 kg / m ~ 2, an average of 10 ~ 14 kg / m ~ 2, particle size within 200 mm. Freely deposited in the bottom of the ocean, 70% of the minerals are 10 ~ 80 mm rock ball, weighing 2200 kg / m ~ 3. Mineral particles and cohesion of about 1 kPa layer. From the sea floor