Vast cache of rare earth elements found in Japan's mud
"Vast cache of rare earth elements found in Japan's mud" — Michael Slezak — New Scientist — April 02, 2013
Japan keeps finding treasure in deep-sea mud. For the second time in two years, a Japanese team has announced vast deposits of rare earth elements on the floor of the Pacific Ocean.
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U.S. companies increasingly seek to engage in seabed mining for minerals such as rare earth elements and cobalt that are critical to the broad U.S. economy and used in producing defense assets. The deep seabed contains two potential sources for rare earth elements: polymetallic nodules which typically contain manganese, nickel, copper, cobalt and rare earth minerals; and sea-floor hydrothermal vents which pump out rare-earth elements dissolved in their hot fluids.
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