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Rare Earth Elements and Other Critical Metals in Deep Seabed Mineral Deposits: Composition and Implications for Resource Potential
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pak, Sang-Joon Seo, Inah Lee, Kyeong-Yong Hyeong, Kiseong |
| Copyright Year | 2018 |
| 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. |
| Starting Page | 3 |
| Ending Page | 3 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.3390/min9010003 |
| Volume Number | 9 |
| Alternate Webpage(s) | https://res.mdpi.com/minerals/minerals-09-00003/article_deploy/minerals-09-00003-s001.pdf?attachment=1&filename= |
| Alternate Webpage(s) | https://res.mdpi.com/minerals/minerals-09-00003/article_deploy/minerals-09-00003.pdf?attachment=1&filename= |
| Alternate Webpage(s) | https://doi.org/10.3390/min9010003 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
