Journal ArticleDOI
Deep-ocean mineral deposits as a source of critical metals for high- and green-technology applications: Comparison with land-based resources
TLDR
In this paper, the authors compare the grades and tonnages of nodules and crusts in those two areas with the global terrestrial reserves and resources, and compare the two largest existing land-based REE mines, Bayan Obo in China and Mountain Pass in the USA.About:
This article is published in Ore Geology Reviews.The article was published on 2013-06-01. It has received 608 citations till now.read more
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Isotopic signatures of REY mineralization associated with lignite basins in South Primorye, Russian Far East
Victor P. Nechaev,Victor P. Nechaev,I. Yu. Chekryzhov,I. Yu. Chekryzhov,S. V. Vysotskiy,S. V. Vysotskiy,Alexander V. Ignatiev,T. A. Velivetskaya,Irina A. Tarasenko,Irina A. Tarasenko,A.I. Agoshkov +10 more
TL;DR: In this paper, stable isotopic analyses were performed for rare earth elements and yttrium mineralization of South Primorye and Southwest Japan in addition to recent exploration data and some K-Ar and U-Pb datings.
Journal ArticleDOI
Geochemical approach to the genesis of the Oligocene-stratiform manganese-oxide deposit, Chiatura (Georgia)
TL;DR: The Chiatura mine in central Georgia is considered to be one of the largest metallurgical grade manganese mines in the world, yet its geochemistry is poorly known.
Journal ArticleDOI
Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Capitellidae, Opheliidae, Scalibregmatidae, and Travisiidae.
TL;DR: DNA taxonomy of abyssal polychaete worms from the eastern Clarion-Clipperton Zone (CCZ), central Pacific Ocean is presented, using material collected as part of the Abyssal Baseline (ABYSSLINE) environmental survey cruises to facilitate future taxonomic and environmental impact study.
Journal ArticleDOI
Differences in meiofauna communities with sediment depth are greater than habitat effects on the New Zealand continental margin: implications for vulnerability to anthropogenic disturbance
Norliana Mohd Rosli,Norliana Mohd Rosli,Norliana Mohd Rosli,Daniel Leduc,Ashley A. Rowden,Malcolm R. Clark,P. Keith Probert,Katrin Berkenbusch,Katrin Berkenbusch,Carlos Neira +9 more
TL;DR: Investigating meiofaunal community attributes in slope, canyon, seamount, and seep habitats in two regions on the continental slope of New Zealand finds that patterns were not the same for each community attribute, and indicates that variability in meioFaunal communities was greater at small scale than at habitat or regional scale.
Journal ArticleDOI
Patterns of Macrofaunal Biodiversity Across the Clarion-Clipperton Zone: An Area Targeted for Seabed Mining
Travis Washburn,Lenaick Menot,Paulo Bonifácio,Ellen Pape,Magdalena Błażewicz,Guadalupe Bribiesca-Contreras,Thomas G. Dahlgren,Tomohiko Fukushima,Adrian G. Glover,Se Jong Ju,Stefanie Kaiser,Ok Hwan Yu,Craig R. Smith +12 more
TL;DR: In this paper, the authors assemble and analyze macrofaunal biodiversity data sets from eight studies, focusing on three dominant taxa (Polychaeta, Tanaidacea, and Isopoda), and encompassing 477 box-core samples to address the following questions: (1) How do macrofauna abundance, biodiversity, and community structure vary across the Clarion-Clipperton Zone (CCZ), and what are the potential ecological drivers? (2) How representative are APEIs of the nearest contractor areas?
References
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Journal ArticleDOI
Submarine Thermal Springs on the Galápagos Rift
John B. Corliss,Jack Dymond,Louis I. Gordon,John M. Edmond,Richard P. Von Herzen,Robert D. Ballard,Kenneth Green,David L. Williams,Arnold E. Bainbridge,Kathy Crane,Tjeerd H. van Andel +10 more
TL;DR: It is suggested that two-thirds of the heat lost from new oceanic lithosphere at the Gal�pagos Rift in the first million years may be vented from thermal springs, predominantly along the axial ridge within the rift valley.
OtherDOI
Rare earth elements: critical resources for high technology
Abstract: The rare earth elements (REE) form the largest chemically coherent group in the periodic table. Though generally unfamiliar, the REE are essential for many hundreds of applications. The versatility and specificity of the REE has given them a level of technological, environmental, and economic importance considerably greater than might be expected from their relative obscurity. The United States once was largely self-sufficient in these critical materials, but over the past decade has become dependent upon imports (fig. 1). In 1999 and 2000, more than 90% of REE required by U.S. industry came from deposits in China. Although the 15 naturally occurring REE (table 1; fig. 2) are generally similar in their geochemical properties, their individual abundances in the Earth are by no means equal. In the continental crust and its REE ore deposits, concentrations of the most and least abundant REE typically differ by two to five orders of magnitude (fig. 3). As technological applications of REE have multiplied over the past several decades, demand for several of the less abundant (and formerly quite obscure) REE has increased dramatically. The diverse nuclear, metallurgical, chemical, catalytic, electrical, magnetic, and optical properties of the REE have led to an ever increasing variety of applications. These uses range from mundane (lighter flints, glass polishing) to high-tech (phosphors, lasers, magnets, batteries, magnetic refrigeration) to futuristic (hightemperature superconductivity, safe storage and transport of hydrogen for a post-hydrocarbon economy).
Book ChapterDOI
Sea-Floor Tectonics and Submarine Hydrothermal Systems
TL;DR: In this article, the authors identify a number of sites of high-temperature venting and polymetallic sulfide deposits on the seafloor of the world's oceans.
Journal ArticleDOI
Uptake of elements from seawater by ferromanganese crusts: solid-phase associations and seawater speciation
Andrea Koschinsky,James R. Hein +1 more
TL;DR: In this paper, the authors proposed a simple sorption model related to the inorganic speciation of the elements in seawater, as has been proposed in earlier models, in order to determine the host phases of 40 elements.
Journal ArticleDOI
Sequential leaching of marine ferromanganese precipitates: Genetic implications
Andrea Koschinsky,Peter Halbach +1 more
TL;DR: In this paper, the results of leaching experiments were carried out on twentyone hydrogenetic crust samples from different locations in the central Pacific and the results were compared with four crust and nodule samples of different genetic origin.
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Uptake of elements from seawater by ferromanganese crusts: solid-phase associations and seawater speciation
Andrea Koschinsky,James R. Hein +1 more