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Manganese nodules were first discovered on the ocean floor in 1803. After the Second World War, a comprehensive investigation of the Ocean World started, and new data were obtained on a wide distribution of manganese nodules, that made scientists consider modules as one of the major characteristics of the deep...
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www.cartage.org.lb/en/themes/sciences/Earthscience/Ocea...
www.cartage.org.lb/en/themes/sciences/Earthscience/Oceanography/OceanSediments/Manganesenodules/Manganesenodules.htm
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Sci-Tech Encyclopedia: Manganese nodules ... Marine manganese nodules from certain regions are significantly enriched in nickel, copper, cobalt, zinc, molybdenum, and other elements so as to make them important reserves for these strategic metals.
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www.answers.com/topic/manganese-nodule
www.answers.com/topic/manganese-nodule
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Britannica online encyclopedia article on manganese nodule (mineralogy), From an economic standpoint, the most interesting oceanic sediments are manganese nodules—small, black to brown, friable lumps found to be widely distributed throughout the major oceans in the late 19th century by the Challenger and Albatross ...
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www.britannica.com/EBchecked/topic/361924/manganese-nod...
www.britannica.com/EBchecked/topic/361924/manganese-nodule
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Manganese Nodules from Bioseeds ... Manganese Nodules and Crusts Triggered by Bacteria and Algae ... Manganese nodules are formed on the sea floor at depths of 4,000 to 5,000 meters. In the last 10 million years or so, an estimated 300 billion tonnes of manganese has accumulated in the form of nodules.
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geology.com/press-release/manganese-nodules-and-crusts/
geology.com/press-release/manganese-nodules-and-crusts/
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Manganese nodules were first discovered on the ocean floor in 1803. Manganese nodules, are rock concretions on the sea bottom formed of concentric layers of iron and manganese hydroxides around a core or nucleus.
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my.opera.com/nielsol/blog/2009/09/08/manganese-nodules
my.opera.com/nielsol/blog/2009/09/08/manganese-nodules
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Study sets and science gifts from Jensan Scientifics. Your source for fantastic items of Space science, Earth science, Rare Minerals, Rocks, Collectible Manganese Nodules and More! ... Manganese nodules are scattered about in the millions, packed with important metals -- manganese, iron, and even the platinum group...
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www.sciencemall-usa.com/mannod.html
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Manganese nodules and sediments in the equatorial North Pacific Ocean "Sonne" Cruise SO 25, 1982 ... Sedimentary hiatuses during the Neogene played a significant role in the initial formation of manganese nodules. The further nodule growth is mainly determined by the sedimentary accumulation rate,
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www.schweizerbart.de/pubs/books/geologi-186068700-desc....
www.schweizerbart.de/pubs/books/geologi-186068700-desc.html
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Oceanographers have long known that parts of the Pacific sea floor at depths between 14,000 ft. and 17,000 ft. are carpeted with so-called manganese nodules, potato-size chunks of manganese mixed with iron, nickel, cobalt and other useful metals.
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www.fas.org/irp/program/collect/jennifer.htm
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