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Metallic Reserves of Submarine Manganese Nodules to be Estimated and Harnessed Prudently: Evidence from China's Jiaolong Manned Submersible

Metallic Reserves of Submarine Manganese Nodules to be Estimated and Harnessed Prudently: Evidence from China's Jiaolong Manned Submersible
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摘要 Since the discovery of oceanic manganese nodules during the expedition of the British ocean-going ship Challenger from 1872 to 1876, research and development for seabed manganese nodules have never ceased owing to the huge economic inducements. Manganese nodules are the black or dark brown, spherical or massive Mn-bearing ores, deposits of which are found on the sea bottom. The nodules are a mixture of silicate and insoluble potassium permanganates (also with sub-Ti, Fe and Na permanganates) that contain more than 30 kinds of metallic elements, among which those of greatest economic interest are Mn (27-30%), Ni(1.25-1.5%), Cu(1- 1.4%), Co(0.2- 0.25 %), Fe, Si, and AI, with minor amounts of Ca, Na, K, Ti, B, H and O. Since the discovery of oceanic manganese nodules during the expedition of the British ocean-going ship Challenger from 1872 to 1876, research and development for seabed manganese nodules have never ceased owing to the huge economic inducements. Manganese nodules are the black or dark brown, spherical or massive Mn-bearing ores, deposits of which are found on the sea bottom. The nodules are a mixture of silicate and insoluble potassium permanganates (also with sub-Ti, Fe and Na permanganates) that contain more than 30 kinds of metallic elements, among which those of greatest economic interest are Mn (27-30%), Ni(1.25-1.5%), Cu(1- 1.4%), Co(0.2- 0.25 %), Fe, Si, and AI, with minor amounts of Ca, Na, K, Ti, B, H and O.
出处 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2013年第4期1179-1180,共2页 地质学报(英文版)
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