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Ocean manganese nodules

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Published by U.S. Govt. Print. Off. in Washington .
Written in English

Subjects:

  • Manganese nodules,
  • Manganese mines and mining, Submarine

Book details:

Edition Notes

Statementprepared by [James E. Mielkel], the Congressional Research Service, at the request of Henry M. Jackson, chairman, Committee on Interior and Insular Affairs, United States Senate.
ContributionsMielke, James E., United States. Congress. Senate. Committee on Interior and Insular Affairs.
Classifications
LC ClassificationsTN490.M3 U65 1975
The Physical Object
Paginationxv, 203 p. :
Number of Pages203
ID Numbers
Open LibraryOL4853191M
LC Control Number75602300

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Manganese nodules were first discovered on the ocean floor miles south-west of the Canary Islands on Febru , during the first complex oceano­ logical cruise of the Challenger. They surprised researchers by their unusual shape and also by their unusual chemical composition;Brand: Springer Netherlands. Ocean manganese nodules [Library of Congress. Congressional Research Service.] on *FREE* shipping on qualifying offers. This book was digitized and reprinted from the collections of the University of California Libraries. It was produced from digital images created through the libraries’ mass digitization efforts. The digital images were cleaned and prepared for printing through. Get this from a library! Ocean manganese nodules. [James E Mielke; Library of Congress. Congressional Research Service.; United States. Congress. Senate. Committee on Interior and Insular Affairs.].   Manganese Nodules and Crusts in Modern Sediments. The world's largest deposit of manganese is found in modern deep-sea sediments. Pelagic ferromanganese nodules cover the ocean floor over large areas, particularly in the central Pacific, and many volcanic edifices are coated by Fe–Mn crusts built on the rock surfaces.

Deep sea mining is a mineral retrieval process that takes place on the ocean mining sites are usually around large areas of polymetallic nodules or active and extinct hydrothermal vents at 1, to 3, metres (4, to 12, ft) below the ocean’s surface. The vents create globular or massive sulfide deposits, which contain valuable metals such as silver, gold, copper.   Deep-ocean polymetallic nodules (also known as manganese nodules) are composed of iron and manganese oxides that accrete around a nucleus on Author: James R. Hein, Andrea Koschinsky, Thomas Kuhn.   He announced that he would build a huge ship to mine valuable manganese nodules from the floor of the Pacific Ocean. In reality, the CIA was working with Hughes to .   Manganese nodules are found scattered on the ocean floor. Though generally composed of manganese (hence the name), they can also be made of iron, nickel, copper, and other metals. This recently discovered batch, located several hundred miles east of Barbados, is the largest yet discovered in the Atlantic Ocean. 1.

Title. Ocean manganese nodules / By. Library of Congress. Congressional Research Service. Mielke, James E. United States. The Manganese nodule belt of the Pacific Ocean: Geological environment, nodule formation, and mining aspects on *FREE* shipping on qualifying offers. The Manganese nodule belt of the Pacific Ocean: Geological environment, nodule formation, and mining aspectsFormat: Turtleback.   An attempt is made to outline a satisfactory general theory for the formation of Pacific deep-sea manganese nodules based on a consideration of the time of initiation of formation of the nodules, a mechanism of maintenance of the nodules at the sediment surface and the role of biological productivity of the surface waters in influencing nodule by:   Many secular scientists extrapolate current seafloor sediment deposit rates. They then publish Earth age assignments of millions of years. Are they following the scientific method? How do manganese nodules present problems for old-Earth proponents? Does evidence line up with recent creation and the global Genesis Flood? Other episodes in this series: Does the “God Particle” Prove .