• Technological and economic assessment of manganese nodule ...

    Technological and economic assessment of manganese nodule mining and processing. [Washington] : Dept. of the Interior, Office of Minerals Policy and Research Analysis : For sale by …

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  • Deep Sea Mining: Economic Bonanza or Environmental ...

    Christopher Werth reports from London on one company''s plans, how environmental scientists view the prospect of digging up the sea floor, and how Howard Hughes and the CIA helped pave the way.

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  • Seafloor mining: the DeepGreen method Mining Technology

    Seafloor mining: the DeepGreen method. Share. ... By collecting these nodules DeepGreen is hoping to provide important metals in a minimally invasive way. But as deepsea mining becomes an increasingly hot topic, what sets this company apart from the growing subsea pack? ... Despite the potential economic benefits, there is major concern over ...

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  • Manganese | Minerals Education Coalition

    These nodules are nearly 25 % pure manganese. However, their location on the ocean floor makes them currently uneconomical to collect. One of the largest known rhodochrosite gemstones was found in Colorado. ... It’s time to vote for your favorite submission of student videos showing how important mining and minerals are in our lives ...

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  • Mining manganese nodules: Potential economic and ...

    This article examines the economic implications of mining or of not mining manganese nodules and summarizes potential ecological consequences. Apart from possible net economic benefits to certain countries, mining the nodules is not regarded as an economic or strategic necessity.

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  • Deep Ocean Mining Reconsidered a Study of the Manganese ...

    Likewise, Soreide et al. [12] suggested developing smallscale manganese nodules mining at one million tons per year of wet production. 1 In this way, processing nodules needs to be tailored to ...

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  • Should we mine the deep ocean? | Popular Science

    Should we mine the deep ocean? ... Polymetallic nodules are most ripe for mining due to ease of access and existing technologies. ... they’ve managed to slither their way into most corners of ...

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  • Review of the Current State of Development and the ...

    Review of the Current State of Development and the Potential for Environmental Impacts of Seabed Mining Operations Michelle Allsopp1, Clare Miller1, ... Mineral Deposits of Commercial Interest to Mining Manganese Nodules (MN), Cobaltrich Crusts (CRC), and Seafloor Massive ... more efficient way to source metal than mining ore, while ...

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  • The International Seabed Authority and Deep Seabed Mining ...

    The International Seabed Authority and Deep Seabed Mining. Source: Simon Claus and others, Marine Regions (Ostend, Belgium, Flanders Marine Institute, 2016). ... such as ferromanganese crusts and polymetallic nodules. ... Ultimately, the economic advantages of deep seabed mining, most likely in the form of royalties paid to the Authority, are ...

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  • RESEARCH NEWS ManganeseNodules (II): Prospects Mining

    dredge nodules from the deep seabed and to extract pure metals from the nodule ore will become the basis of a new mining industry is still uncertaineconomic, environmental, and legal questions about the feasibility of deep sea mining remain to be answered. Nonetheless, development of what may prove to be a major new marine technology appears ...

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