Micromorphology, mineralogy, and geochemistry of ferromanganese nodules in tropical soils and their impacts on heavy metal sequestration
文献类型：期刊论文
| 作者 | Huang, Laiming; Wang, Yi; Shao, Mingan |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2023-01-10 |
| 卷号 | 383 |
| ISSN号 | 0959-6526 |
| 关键词 | Tropical soil Ferromanganese nodule Microstructure Heavy metal sequestration |
| DOI | 10.1016/j.jclepro.2022.135498 |
| 文献子类 | J |
| 英文摘要 | Ferromanganese nodules (FMNs) are important products of soil-forming processes that can reflect the historical pedogenic environment and affect the elemental cycle in the soil. Despite extensive investigations on the morphology, microstructure, and components of FMNs, non-destructive observation of the 3D microstructure and elemental distribution feature of FMNs remains difficult, owing to the limitations of conventional measurement techniques and instrumental accuracy. In this study, the micromorphological, mineralogical and geochemical characteristics of FMNs in basalt-derived soils in tropical China were examined using different techniques, including scanning electron microscopy, X-ray diffraction, chemical extraction, and synchrotron radiation-based X-ray microtomography and microfluorescence mapping. Mn and Fe in FMNs were found to be inversely distributed in concentric rings, with Mn mainly enriched in the interior and Fe mainly distributed at the edge of the nodule. A line scan of the cross-section of FMNs revealed symmetrical distributions of the peak Fe and Mn contents and Fe:Mn ratios, indicating alternating dry/wet conditions and oxidation/reduction reactions during the formation of FMNs. FMNs were significantly enriched in P and various heavy metals, including Ba, Co, Cu, and Ni. The enrichment factors of P, Ba, Co, Cu, and Ni were in the range of 1.20-4.68, 8.34-27.12, 12.92-24.74, 2.51-3.55, and 2.75-3.58, respectively, reflecting the potential of FMNs to influence the soil nutrient cycle and heavy metal sequestration. Factor analysis further verified the adsorption of heavy metals by FMNs and indicated that the formation of FMNs was accompanied by an increase in Mn-bearing mineral and a decrease in phyllosilicate. Our study demonstrates that FMNs provide important information for understanding changes in pedogenic environment and heavy metal behavior in tropical soils. |
| WOS关键词 | IRON-MANGANESE NODULES ; FE-MN NODULES ; ELEMENTAL COMPOSITION ; CARPATHIAN FOOTHILLS ; TRACE-ELEMENTS ; CONCRETIONS ; ACCUMULATION ; OXIDES ; ALBELUVISOLS ; ALFISOLS |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000906665400001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/188589]  |
| 专题 | 黄河三角洲现代农业工程实验室_外文论文 |
| 作者单位 | 1.Northwest A&F University - China 2.University of Chinese Academy of Sciences, CAS 3.Beijing Normal University 4.Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Huang, Laiming,Wang, Yi,Shao, Mingan. Micromorphology, mineralogy, and geochemistry of ferromanganese nodules in tropical soils and their impacts on heavy metal sequestration[J]. JOURNAL OF CLEANER PRODUCTION,2023,383. |
| APA | Huang, Laiming,Wang, Yi,&Shao, Mingan.(2023).Micromorphology, mineralogy, and geochemistry of ferromanganese nodules in tropical soils and their impacts on heavy metal sequestration.JOURNAL OF CLEANER PRODUCTION,383. |
| MLA | Huang, Laiming,et al."Micromorphology, mineralogy, and geochemistry of ferromanganese nodules in tropical soils and their impacts on heavy metal sequestration".JOURNAL OF CLEANER PRODUCTION 383(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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