Rare Earth Elements and Other Critical Metals in Deep Seabed Mineral Deposits: Composition and Implications for Resource Potential SCIE SCOPUS

Cited 4 time in WEB OF SCIENCE Cited 6 time in Scopus
Title
Rare Earth Elements and Other Critical Metals in Deep Seabed Mineral Deposits: Composition and Implications for Resource Potential
Author(s)
Pak, Sang-Joon; Seo, Inah; Lee, Kyeong-Yong; Hyeong, Kiseong
KIOST Author(s)
Pak, Sang Joon(박상준)Hyeong, Kiseong(형기성)
Publication Year
2019-01
Abstract
The critical metal contents of four types of seabed mineral resources, including a deep-sea sediment deposit, are evaluated as potential rare earth element (REE) resources. The deep-sea resources have relatively low total rare earth oxide (TREO) contents, a narrow range of TREO grades (0.049-0.185%), and show characteristics that are consistent with those of land-based ion adsorption REE deposits. The relative REO distributions of the deep-seabed resources are also consistent with those of ion adsorption REE deposits on land. REEs that are not part of a crystal lattice of host minerals within deep-sea mineral deposits are favorable for mining, as there is no requirement for crushing and/or pulverizing during ore processing. Furthermore, low concentrations of Th and U reduce the risk of adverse environmental impacts. Despite the low TREO grades of the deep-seabed mineral deposits, a significant TREO yield from polymetallic nodules and REE-bearing deep-sea sediments from the Korean tenements has been estimated (1 Mt and 8 Mt, respectively). Compared with land-based REE deposits, deep-sea mineral deposits can be considered as low-grade mineral deposits with a large tonnage. The REEs and critical metals from deep-sea mineral deposits are important by-products and co-products of the main commodities (e.g., Co and Ni), and may increase the economic feasibility of their extraction.
ISSN
2075-163X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/707
DOI
10.3390/min9010003
Bibliographic Citation
MINERALS, v.9, no.1, 2019
Publisher
MDPI
Subject
FERROMANGANESE CRUSTS; OCEAN; GEOCHEMISTRY; ENRICHMENT; SEDIMENTS; MUD
Keywords
seabed mineral resource; deep-sea sediment; total rare earth oxides; critical metal; relative REO distribution; low-grade and large tonnage deposit
Type
Article
Language
English
Document Type
Article
Publisher
MDPI
Related Researcher
Research Interests

Economic geology,Geochemistry,Resource geology,광상학,지구화학,자원지질학

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