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manganese nodule wikipedia the free encyclopedia

manganese nodule wikipedia the free encyclopedia

  • Manganese nodule - Wikipedia

    OverviewProposed miningOccurrenceGrowth and compositionManganese nodules mining value chainLegal developments in 'The Area'Environmental issues and sensitivitiesSee also

    Interest in the potential exploitation of polymetallic nodules generated a great deal of activity among prospective mining consortia in the 1960s and 1970s. Almost half a billion dollars was invested in identifying potential deposits and in research and development of technology for mining and processing nodules. These initial undertakings were carried out primarily by four multinational consortia composed of companies from the United States, Canada, the United Kingdom, the Federal Republic of Germany, Belgi

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  • Manganese - Wikipedia

    Manganese is a chemical element with the symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels.

  • Pronunciation: /ˈmæŋɡəniːz/ ​(MANG-gə-neez)
  • Talk:Manganese nodule - Wikipedia

    Manganese nodule is part of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource. If you would like to participate, you can choose to edit this article, or visit the project page for more information. C This article has been rated as C-Class on the project's quality scale.

  • Ferromanganese nodules - Wikipedia

    Ferromanganese nodules form in the oxidizing environment of the abyssal pelagic zone.They are the result of ion exchange reactions that precipitate ore components from the water (sedimentary) or out of the interstitial water of the sediments layers (diagenetic). The composition of Manganese-bearing minerals is dependent on how the nodules are formed; sedimentary nodules, which have a lower Mn ...

  • Manganese nodule — Wikipedia Republished // WIKI 2

    Manganese nodule. Quite the same Wikipedia. Just better.

  • Manganosite - Wikipedia

    Manganosite is a rare mineral composed of manganese(II) oxide MnO. It was first described in 1817 for an occurrence in the Harz Mountains, Saxony-Anhalt, Germany. It has also been reported from Langban and Nordmark, Sweden and at Franklin Furnace, New Jersey.It also occurs in Japan, Kyrgyzstan and Burkina Faso.. It occurs in manganese nodules.It also occurs as alteration of manganese minerals ...

  • Category: Oxide mineral
  • Psychropotes semperiana - Wikipedia

    Psychropotes semperiana; a live Psychropotes semperiana over manganese nodules on the bottom : Scientific classification; Kingdom: Psychropotes semperiana is a species of sea cucumber in the family Psychropotidae.. References

  • Genus: Psychropotes
  • Manganese nodule - The Full Wiki

    From Wikipedia, the free encyclopedia. Polymetallic nodules, also called manganese nodules, are rock concretions on the sea bottom formed of concentric layers of iron and manganese hydroxides around a core. The core may be microscopically small and is sometimes completely transformed into manganese minerals by crystallization.

  • Manganese - Simple English Wikipedia, the free encyclopedia

    Manganese is a silvery-gray metal and is part of the group known as the transition metals.It is similar to iron. It is hard to melt, but easy to oxidize.Manganese forms chemical compounds in several oxidation states: +2, +4, and +7 are the most common.Manganese compounds can be black, brown, pink, red, green, blue, and purple.

  • Manganese nodules Article about Manganese nodules

    Engineered by the Ocean Management Inc (OMI) consortium, the $50 million venture netted 1000 tonnes of manganese nodules.A report claimed: "Perhaps an even bigger catch, however, was the clean bill of health the operation won from government scientists monitoring the environmental effects of scooping the potato-sized nodules from the ocean floor and shooting them up to the surface."

  • Manganese — Wikipedia Republished // WIKI 2

    Manganese is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in minerals in combination with iron.Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.. Historically, manganese is named for pyrolusite and other black minerals from the region of Magnesia in Greece, which also gave ...

  • Manganese - WikiMili, The Free Encyclopedia

    Manganese is a chemical element with the symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in minerals in combination with iron. Manganese is a transition metal with important industrial alloy uses, particularly in stainless steels.

  • Manganese - The Full Wiki

    Manganese (/ ˈ m æ ŋ ɡ ən iː z /, MANG-gən-neez) is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature (often in combination with iron), and in many minerals. As a free element, manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.

  • manganese mining method - Malamulele

    Manganese - Wikipedia, the free encyclopedia. Manganese is a chemical element with symbol Mn and atomic number 25. It is not found as a ..... Attempts to find economically viable methods of harvesting manganese nodules were abandoned in the 1970s.

  • Manganese nodule Article about manganese nodule by

    Engineered by the Ocean Management Inc (OMI) consortium, the $50 million venture netted 1000 tonnes of manganese nodules.A report claimed: "Perhaps an even bigger catch, however, was the clean bill of health the operation won from government scientists monitoring the environmental effects of scooping the potato-sized nodules from the ocean floor and shooting them up to the surface."

  • Manganese_nodule - chemeurope

    A company by the name of Kennecott Copper had explored the potential profits in manganese nodule mining and found that it wasn't worth the cost. Other than the environmental issues and the fact that the profits had to be shared, there was not any cheap way to get the manganese nodules off the sea floor.

  • Manganese peroxidase - WikiMili, The Free Encyclopedia

    2019-09-13  Manganese(IV) oxide is the inorganic compound with the formula MnO 2. This blackish or brown solid occurs naturally as the mineral pyrolusite, which is the main ore of manganese and a component of manganese nodules. The principal use for MnO 2 is for dry-cell batteries, such as the alkaline battery and the zinc-carbon battery.

  • Natural resource economics - Wikipedia

    This article possibly contains original research. Please improve it by verifying the claims made and adding inline citations.Statements consisting only of original research should be removed. (October 2010) (Learn how and when to remove this template message

  • Nodule (geology) — Wikipedia Republished // WIKI 2

    From Wikipedia, the free encyclopedia. Devonian nodular limestone. Concretionary nodular limestone at Jinshitan Coastal National Geopark, Dalian, China. In sedimentology and geology, a nodule is small, irregularly rounded knot, mass, or lump of a mineral or mineral aggregate that typically has a contrasting composition, such as a pyrite nodule in coal, a chert nodule in limestone, or a ...

  • Nodule (geology) — Wikipedia Republished // WIKI 2

    From Wikipedia, the free encyclopedia. Devonian nodular limestone. Concretionary nodular limestone at Jinshitan Coastal National Geopark, Dalian, China. In sedimentology and geology, a nodule is small, irregularly rounded knot, mass, or lump of a mineral or mineral aggregate that typically has a contrasting composition, such as a pyrite nodule in coal, a chert nodule in limestone, or a ...

  • Manganese heptoxide - WikiMili, The Free Encyclopedia

    Manganese(IV) oxide is the inorganic compound with the formula MnO 2. This blackish or brown solid occurs naturally as the mineral pyrolusite, which is the main ore of manganese and a component of manganese nodules. The principal use for MnO 2 is for dry-cell batteries, such as the alkaline battery and the zinc-carbon battery.

  • Manganese dioxide - WikiMili, The Free Encyclopedia

    Manganese(IV) oxide is the inorganic compound with the formula MnO 2. This blackish or brown solid occurs naturally as the mineral pyrolusite, which is the main ore of manganese and a component of manganese nodules. The principal use for MnO 2 is for dry-cell batteries, such as the alkaline battery

  • Manganese nodules - The Free Dictionary

    Define Manganese nodules. Manganese nodules synonyms, Manganese nodules pronunciation, Manganese nodules translation, English dictionary definition of Manganese nodules. n geology a small irregular concretion found on deep ocean floors having high concentrations of certain metals, esp manganese . Manganese nodules - definition of Manganese nodules by The Free Dictionary.

  • Todorokite - The Full Wiki

    From Wikipedia, the free encyclopedia. Todorokite is a rare complex hydrous manganese oxide mineral with formula (Mn,Mg,Ca,Ba,K,Na) 2 Mn 3 O 12 3H 2 O. It is a brown to black monoclinic mineral which occurs in massive or tuberose forms. It is quite soft with a Mohs hardness of 1.5, and has a specific gravity of 3.49 - 3.82.

  • Manganese - Wikipedia

    Manganese is a chemical element with the symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in minerals in combination with iron.Manganese is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels.

  • International Seabed Authority - The Full Wiki

    Manganese nodule . Manganese . United Nations Convention on the Law of the Sea . United States . International waters . Indian Ocean . Encyclopedia. From Wikipedia, the free encyclopedia. The International Seabed Authority (ISA) (French: Autorité internationale des fonds marins, Spanish: Autoridad Internacional de los Fondos Marinos) is an intergovernmental body based in Kingston,

  • methods to mining manganese

    Manganese nodule - Wikipedia, the free encyclopedia. Polymetallic nodules, also called manganese nodules, are rock concretions on the sea bottom formed of concentric layers of iron and manganese hydroxides around a core.

  • Manganese oxide - WikiMili, The Free Encyclopedia

    Birnessite (Na 0.3 Ca 0.1 K 0.1)(Mn 4+,Mn 3+) 2 O 4 1.5 H 2 O is an oxide mineral of manganese along with calcium, potassium and sodium. It has a dark brown to black color with a submetallic luster. It is also very soft, with a Mohs hardness of 1.5. Birnessite is formed by precipitation in lakes, oceans and groundwater and is a major component of desert varnish and deep sea manganese nodules.

  • Manganese_nodule - chemeurope

    A company by the name of Kennecott Copper had explored the potential profits in manganese nodule mining and found that it wasn't worth the cost. Other than the environmental issues and the fact that the profits had to be shared, there was not any cheap way to get the manganese nodules off the sea floor.