polymetallic nodules definition

polymetallic nodules means one of the resources of the Area consisting of any deposit or accretion of nodules, on or just below the surface of the deep seabed, which contain manganese, nickel, cobalt and copper;
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polymetallic nodules means any deposit or accretion of nodules, on or just below the surface of the seabed, which contain ore and manganese hydroxides;
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polymetallic nodules means any deposit or accretion on or just below the surface of the deep sea bed consisting of nodules which contain manganese, nickel, cobalt, or copper.
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Examples of polymetallic nodules in a sentence

  • Polymetallic nodules are decimetres-size concretions of ore lying on the surface of abyssal sediments in 4000 – 6500 m water depth and cover large areas of the Pacific and Indian Ocean (Hein and Koschinsky, 2014).

  • J.: Polymetallic nodules, sediments, and deep waters in the equatorial North Pacific exhibit highly diverse and distinct bacterial, archaeal, and microeukaryotic communities, Microbiologyopen, 6(2), 1–16, doi:10.1002/mbo3.428, 2017.

  • Polymetallic nodules are formed of concentric layers of manganese and iron hydroxides around a core.

  • Polymetallic nodules were10 discovered during the Challenger expedition in the 1870s at depths below 4000 m in the Pacific, Atlantic and Indian oceans (Boudreau and Scott, 1978).

  • Poly-metallic nodules and sulphides are the two mineral resources of great economic value.

  • In the Indian Ocean Polymetallic nodules and polymetallic massive sulphides are the two mineral resources of primary interest to developers in the Indian Ocean.

  • Polymetallic nodules are essential for food-web integrity of a prospective deep-seabed mining area in Pacific abyssal plains.

  • Polymetallic nodules were known to occur on the ocean bottom near the Amirantes Islands.

  • Poly-metallic nodules are of ‘golf-to-tennis-ball- size’ containing nickel, cobalt, iron, and manganese formed over millions of years on the sediment of the seafloor.

  • A battery in a rock: Polymetallic nodules are the cleanest path toward electric vehicles.


More Definitions of polymetallic nodules

polymetallic nodules has the meaning given to that term by the ISA. Production Audit, see Section 4.
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polymetallic nodules means one of the resources of the Area consisting of deep-sea accretionary deposits of oxy-hydroxides of manganese and iron, which may contain, inter alia, nickel, copper and cobalt, found on and within an unconsolidated sediment;
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polymetallic nodules has the meaning given to that term by the ISA.
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