Enrichment Mechanism of Rare Earth Elements in the Aluminum-bearing Rock Series of the Jinsha Area in Northwest Guizhou Province
The rare earth element (REE) content in the aluminum-bearing rock series of the Lower Carboniferous Jiujialu Formation in the Jinsha Area of northwest Guizhou is relatively high, showing certain exploration potential. This paper studies the enrichment mechanism of REE in the aluminum-bearing rock se...
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Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences
2025-08-01
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| Series: | Kuangchan zonghe liyong |
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| Online Access: | http://www.kczhly.com/en/article/doi/10.12476/kczhly.202505270093 |
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| author | Kun QIE Yang LAI Daxing GONG Enyuan TIAN |
| author_facet | Kun QIE Yang LAI Daxing GONG Enyuan TIAN |
| author_sort | Kun QIE |
| collection | DOAJ |
| description | The rare earth element (REE) content in the aluminum-bearing rock series of the Lower Carboniferous Jiujialu Formation in the Jinsha Area of northwest Guizhou is relatively high, showing certain exploration potential. This paper studies the enrichment mechanism of REE in the aluminum-bearing rock series through field profile measurement, trench logging, core logging, microscopic identification, major and trace element, and REE chemical analysis. The results show that the ΣREE content in the aluminum-bearing rock series of the Jinsha Area in northwest Guizhou is relatively high, ranging from 156.31×10-6 to 1 543.70×10-6, with an average of 743.49×10-6. Light rare earth elements are relatively enriched, and the ΣLREE/ΣHREE value ranges from 2.20 to 10.69. The enrichment of REE in the aluminum-bearing rock series is influenced by multiple factors such as the content of clay minerals and iron-bearing minerals. Light rare earth elements have a higher hydrolysis rate at alkaline conditions and are easily enriched. An oxidized environment is conducive to the deposition of REE3+. The water body of the limonitic bauxite in the Jinsha Area is weakly alkaline, and the sedimentary environment is oxidized, providing favorable conditions for the enrichment of REE. The REE content in the high-iron limonitic bauxite at the bottom of borehole ZK01 ranges from 0.115% to 0.150%, indicating that the aluminum-bearing rock series in the Jinsha Area has great exploration potential for REE. |
| format | Article |
| id | doaj-art-88bf55c943704556ba64f32da082bb5d |
| institution | Kabale University |
| issn | 1000-6532 |
| language | zho |
| publishDate | 2025-08-01 |
| publisher | Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences |
| record_format | Article |
| series | Kuangchan zonghe liyong |
| spelling | doaj-art-88bf55c943704556ba64f32da082bb5d2025-08-25T08:13:18ZzhoInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological SciencesKuangchan zonghe liyong1000-65322025-08-01464839010.12476/kczhly.2025052700932025-04kekunEnrichment Mechanism of Rare Earth Elements in the Aluminum-bearing Rock Series of the Jinsha Area in Northwest Guizhou ProvinceKun QIE0Yang LAI1Daxing GONG2Enyuan TIAN3Institute of Multipurpose Utilization of Mineral Resources, CAGS, Chengdu, Sichuan 610041, ChinaInstitute of Multipurpose Utilization of Mineral Resources, CAGS, Chengdu, Sichuan 610041, ChinaInstitute of Multipurpose Utilization of Mineral Resources, CAGS, Chengdu, Sichuan 610041, ChinaInstitute of Multipurpose Utilization of Mineral Resources, CAGS, Chengdu, Sichuan 610041, ChinaThe rare earth element (REE) content in the aluminum-bearing rock series of the Lower Carboniferous Jiujialu Formation in the Jinsha Area of northwest Guizhou is relatively high, showing certain exploration potential. This paper studies the enrichment mechanism of REE in the aluminum-bearing rock series through field profile measurement, trench logging, core logging, microscopic identification, major and trace element, and REE chemical analysis. The results show that the ΣREE content in the aluminum-bearing rock series of the Jinsha Area in northwest Guizhou is relatively high, ranging from 156.31×10-6 to 1 543.70×10-6, with an average of 743.49×10-6. Light rare earth elements are relatively enriched, and the ΣLREE/ΣHREE value ranges from 2.20 to 10.69. The enrichment of REE in the aluminum-bearing rock series is influenced by multiple factors such as the content of clay minerals and iron-bearing minerals. Light rare earth elements have a higher hydrolysis rate at alkaline conditions and are easily enriched. An oxidized environment is conducive to the deposition of REE3+. The water body of the limonitic bauxite in the Jinsha Area is weakly alkaline, and the sedimentary environment is oxidized, providing favorable conditions for the enrichment of REE. The REE content in the high-iron limonitic bauxite at the bottom of borehole ZK01 ranges from 0.115% to 0.150%, indicating that the aluminum-bearing rock series in the Jinsha Area has great exploration potential for REE.http://www.kczhly.com/en/article/doi/10.12476/kczhly.202505270093southwest guizhoujiujialu formationaluminous rock seriesenrichment mechanismgeoscience |
| spellingShingle | Kun QIE Yang LAI Daxing GONG Enyuan TIAN Enrichment Mechanism of Rare Earth Elements in the Aluminum-bearing Rock Series of the Jinsha Area in Northwest Guizhou Province Kuangchan zonghe liyong southwest guizhou jiujialu formation aluminous rock series enrichment mechanism geoscience |
| title | Enrichment Mechanism of Rare Earth Elements in the Aluminum-bearing Rock Series of the Jinsha Area in Northwest Guizhou Province |
| title_full | Enrichment Mechanism of Rare Earth Elements in the Aluminum-bearing Rock Series of the Jinsha Area in Northwest Guizhou Province |
| title_fullStr | Enrichment Mechanism of Rare Earth Elements in the Aluminum-bearing Rock Series of the Jinsha Area in Northwest Guizhou Province |
| title_full_unstemmed | Enrichment Mechanism of Rare Earth Elements in the Aluminum-bearing Rock Series of the Jinsha Area in Northwest Guizhou Province |
| title_short | Enrichment Mechanism of Rare Earth Elements in the Aluminum-bearing Rock Series of the Jinsha Area in Northwest Guizhou Province |
| title_sort | enrichment mechanism of rare earth elements in the aluminum bearing rock series of the jinsha area in northwest guizhou province |
| topic | southwest guizhou jiujialu formation aluminous rock series enrichment mechanism geoscience |
| url | http://www.kczhly.com/en/article/doi/10.12476/kczhly.202505270093 |
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