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
Citations
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Book ChapterDOI
Deep-Sea Mining and the Environment: An Introduction
Rahul Sharma,Samantha Smith +1 more
TL;DR: In this article, the authors provide an overview of the general environmental issues and concerns being raised in relation to deep-sea mining, introduces some of the mechanisms being put in place to ensure the effective protection of the marine environment, and raises pertinent questions that are being or will need to be addressed as the deepsea minerals industry moves forward into reality.
Journal ArticleDOI
Importance of Spatial Autocorrelation in Machine Learning Modeling of Polymetallic Nodules, Model Uncertainty and Transferability at Local Scale
Iason-Zois Gazis,Jens Greinert +1 more
TL;DR: In this article, a quantile regression forests (QRF) model is used using three cross-validation (CV) techniques (random-, spatial-, and cluster-blocking) to quantify the geographical areas where feature space extrapolation occurs.
Journal ArticleDOI
Economic assessment of sustainable blue energy and marine mining resources linked to African large marine ecosystems
Asmerom M. Gilau,Pierre Failler +1 more
TL;DR: In this article, a preliminary assessment of the potential of sustainable energy and marine mineral resources in Africa is presented, based on which it is expected that by 2030 and 2063 blue energy could add value of about USD1.6 billion and USD2.3 billion, in mining of minerals about USD76 billion and £123 billion, and in oil and gas production about USD100 billion and£138 billion, respectively.
Journal ArticleDOI
Trace elements in ferromanganese nodules from the central indian ocean basin
TL;DR: In this paper, three bulk ferromanganese nodules from the sediment-water interface of siliceous sediment domain from the Central Indian Ocean Basin were analyzed for 50 elements including 6 new (Be, As, Se, Sn, Sb, and Bi) using inductively coupled plasma-mass spectrometer.
Dissertation
Devenir des éléments métalliques en milieu hydrothermal profond : partition dissous-particulaire effective et spéciation dans le mélange fluide hydrothermal-eau de mer précoce
TL;DR: In this paper, the authors present le partitionnement effectif des elements metalliques majeurs (principalement Fe, Cu, Zn, Ba et Ca) entre les phases dissoutes ( 0,45 μm) dans le melange precoce-intermediaire de plusieurs fumeurs du champ hydrothermal Lucky Strike (37°N, MAR) et le comportement and the speciation du Cu dans la fraction dissoute sont ensuite explores plus en detail par le biais de competitions
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.
Related Papers (5)
Uptake of elements from seawater by ferromanganese crusts: solid-phase associations and seawater speciation
Andrea Koschinsky,James R. Hein +1 more