Distribution of rare earth elements (REEs) in supergene environment around a typical ion adsorption-type REE deposit
文献类型：期刊论文
| 作者 | Wang, Yuanyuan1,2,3; Fu, Haoyang5; Lin, Xiaoju2,4; Liang, Xiaoliang2,3,4 ; Yamaguchi, Akiko1; Zhu, Jianxi1,2,4; Takahashi, Yoshio1; Zhu, Runliang2,3,4
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| 刊名 | ORE GEOLOGY REVIEWS
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| 出版日期 | 2023-11-01 |
| 卷号 | 162页码:11 |
| 关键词 | Ion adsorption-type REE deposits Migration REE species Surface complex Secondary enrichment |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2023.105721 |
| 英文摘要 | The exploitation of ion adsorption-type rare earth element (REE) deposits using in-situ leaching technology has become increasingly popular in recent years. However, the migration of REEs into the surrounding environment has raised significant concerns. This study aimed to systematically investigate the migration and species of REEs in two streams (northern and southern streams) surrounding a typical IAD in China. The results showed that in the northern stream, which was directly injected with the leaching solution, REEs were primarily present in the dissolved state as REE(SO4)(2)(-) and REE(SO4)(+). Conversely, in the southern stream that did not receive indirect injection of leaching solution, REEs were present in both particulate and dissolved states (i.e., REE(CO3)(+) and REE(CO3)(2)(-), REE(SO4)(2)(-) and REE(SO4)(+)). The southern stream had a higher enrichment of light REEs (LREEs) compared to the northern stream, with a L/H ratio of 1.8 and 1.6, respectively. This was attributed to the higher stability of dissolved complexes formed between heavy REEs (HREEs) and CO32-. As pH increased in the northern stream, REEs were removed from stream water and deposited in sediment, leading to secondary enrichment of REEs in the sediment. X-ray absorption fine structure (XAFS) analysis revealed that REEs mainly formed outersphere (OS) and inter-sphere (IS) complexes in the sediment of northern and southern streams, respectively. Furthermore, a high proportion of ion-exchangeable REEs in the sediment of the northern stream indicated potential for recycling of REE resources, similar to those found in IADs. These findings contribute to the understanding of the transportation and secondary enrichment of REEs in the environment and provide a scientific basis for the comprehensive utilization of REE resources. |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001102944300001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/79034]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Liang, Xiaoliang; Takahashi, Yoshio |
| 作者单位 | 1.Univ Tokyo, Grad Sch Sci, Dept Earth & Planetary Sci, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1130033, Japan 2.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 5.Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yuanyuan,Fu, Haoyang,Lin, Xiaoju,et al. Distribution of rare earth elements (REEs) in supergene environment around a typical ion adsorption-type REE deposit[J]. ORE GEOLOGY REVIEWS,2023,162:11. |
| APA | Wang, Yuanyuan.,Fu, Haoyang.,Lin, Xiaoju.,Liang, Xiaoliang.,Yamaguchi, Akiko.,...&Zhu, Runliang.(2023).Distribution of rare earth elements (REEs) in supergene environment around a typical ion adsorption-type REE deposit.ORE GEOLOGY REVIEWS,162,11. |
| MLA | Wang, Yuanyuan,et al."Distribution of rare earth elements (REEs) in supergene environment around a typical ion adsorption-type REE deposit".ORE GEOLOGY REVIEWS 162(2023):11. |
入库方式： OAI收割
来源：广州地球化学研究所
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