Geochemistry of rare earth elements in cobalt-rich crusts from the Mid-Pacific M seamount
文献类型：CNKI期刊论文
| 作者 | Cui YC(崔迎春); Liu JH(刘季花); Ren XW(任向文); Shi XF(石学法) |
| 发表日期 | 2009-02-15 |
| 出处 | Journal of Rare Earths
 |
| 关键词 | rare earth elements cobalt-rich crusts Mid-Pacific ocean M seamount |
| 英文摘要 | Rare earth elements(REEs) and major elements of 25 cobalt-rich crusts obtained from different depths of Mid-Pacific M seamount were analyzed using inductively coupled plasma-atomic emission spectrometer and gravimetric method.The results showed that they were hydrogenous crusts with average ∑REE content of 2084.69 μg/g and the light REE(LREE)/heavy REE(HREE) ratio of 4.84.The shale-normalized REE patterns showed positive Ce anomalies.The total content of strictly trivalent REEs increased with water depth.The Ce content and LREE/HREE ratios in Fe-Mn crusts above 2000 m were lower than those below 2000 m.The change in REE with water depth could be explained by two processes:adsorptive scavenging by setting matters and behaviors of REE in seawater.However, the Ce abundance took no obvious correlation with water depth reflects the constant Ce flux.The Ce in crusts existed mainly as Ce(IV), implying that the oxidative-enriching process was controlled by kinetic factors. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the National Natural Science Foundation of China(40704029 ; 40376016) ; China International Science and Technology Cooperation Project (2006DFB21620) ; the Young People Marine Science Foundation of State Oceanic Administration (2005304) |
| 卷 | v.27期:01页:179-186 |
| 语种 | 英文; |
| 分类号 | TG146.45 |
| ISSN号 | 1002-0721 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/192709]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLabofMarineSedimentologyandEnvironmentalGeologyofStateOceanicAdministration,FirstInstituteofOceanography 2.InstituteofOceanology,ChineseAcademyofSciences 3.GraduateUniversityofChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Cui YC,Liu JH,Ren XW,et al. Geochemistry of rare earth elements in cobalt-rich crusts from the Mid-Pacific M seamount. 2009. |
入库方式： OAI收割
来源：海洋研究所
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