Enhanced enrichment of rare earth elements during pedogenesis under subtropical climate
文献类型：期刊论文
| 作者 | Wu, Jian4; Gong, Zheng3; Jin, Qian2; Zhang, Maochao1; Huang, Chengmin4 |
| 刊名 | GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS
 |
| 出版日期 | 2024-11-25 |
| 卷号 | 24期号:4页码:10 |
| 关键词 | rare earth elements ion adsorption soils weathering climosequence subtropics |
| ISSN号 | 1467-7873 |
| DOI | 10.1144/geochem2024-024 |
| 英文摘要 | Rare earth elements (REEs) are crucial strategic resources, and weathering-crust rare earth deposits are one of the primary sources. To systematically understand the geochemical behaviour (e.g. enrichment and leaching) of REEs in soils (or weathering crusts) formed from diverse parent rocks under varying climatic conditions, 171 soil profiles (weathering crusts) developed from three main types of parent rocks (granite, basalt and carbonate rock) worldwide were studied. Granite shows the highest concentration of REEs at 264 [interquartile range (IQR): 278] ppm with 171 (IQR: 151) ppm and 11.9 (IQR: 36.4) ppm in basalt and carbonate rock, respectively (median test: p < 0.05). The median REE values within the soil profiles were significantly different (median test: p < 0.05), with the concentration of 318 (IQR: 441) ppm, 267 (IQR: 217) ppm and 207 (IQR: 417) ppm in soils derived from granite, carbonate rock and basalt, respectively. Principal component analysis and linear mixed-effects models revealed that soils developed from granite and basalt inherit the mineral characteristics of their parent rocks, with REE concentrations primarily influenced by the REE content of the parent rock and climate. In contrast, the REE concentrations in soils developed from carbonate rocks are predominantly controlled by climate. Linear mixed-effects models and correlation analysis indicate that the enrichment of REEs (Q(REE)) shows a trend of initially increasing and then decreasing with rising temperature and precipitation, due to variations in the host clay minerals. The greatest enrichment occurs in the subtropical region (mean annual temperature = 15-23 degrees C; mean annual precipitation = 1000-2000 mm); weathering-crust type REE deposits are primarily found in the subtropics. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001340591400001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81273]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Huang, Chengmin |
| 作者单位 | 1.Qingyuan Polytech, Qingyuan 511510, Peoples R China 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 650100, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 4.Sichuan Univ, Dept Environm Sci & Engn, Sichuan 610065, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Jian,Gong, Zheng,Jin, Qian,et al. Enhanced enrichment of rare earth elements during pedogenesis under subtropical climate[J]. GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS,2024,24(4):10. |
| APA | Wu, Jian,Gong, Zheng,Jin, Qian,Zhang, Maochao,&Huang, Chengmin.(2024).Enhanced enrichment of rare earth elements during pedogenesis under subtropical climate.GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS,24(4),10. |
| MLA | Wu, Jian,et al."Enhanced enrichment of rare earth elements during pedogenesis under subtropical climate".GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS 24.4(2024):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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