Point Shapefile of NGDC Locations of Ferromanganese Crusts in the World Ocean Compiled by the USGS in Open-File Report 89-020 (ngdc_ofr89-020.shp)
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Ferromanganese crusts in the world's oceans may serve as potential sources of metals, such as cobalt and magnesium, valuable to civilian and military industry; these...
全球海洋中的铁锰结壳(Ferromanganese crusts)可作为钴、镁等金属的潜在供给源,此类金属在民用与军用工业中均具备重要应用价值;这些……



