Point Shapefile of Locations of Ferromanganese Crusts in the World Ocean Compiled by the USGS in Open-File Report 89-020 (ussamp_sta_ofr89-020.shp: excludes NGDC Sample Locations)
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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...



