| Geochemistry of rare earth elements in cobalt-rich crusts from the Mid-Pacific M seamount | |
| 其他题名 | mannual of IR |
| Cui Yingchun1,2,3; Liu Jihua2; Ren Xiangwen2; Shi Xuefa2 | |
| 2009-02-01 | |
| 发表期刊 | JOURNAL OF RARE EARTHS
 |
| ISSN | 1002-0721 |
| 卷号 | 27期号:1页码:169-176 |
| 文章类型 | Article |
| 摘要 | Rare earth elements (RFEs) 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 Sigma REE content of 2084.69 mu g/g and the light REE (LREE)/heavy REE (HREE) ratio of 4.84. The shale-normalized PEE 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 in were lower than those below 2000 m. The change in RE E 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 Cc in crusts existed mainly as Ce(IV), implying that the oxidative-enriching process was controlled by kinetic factors.; Rare earth elements (RFEs) 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 Sigma REE content of 2084.69 mu g/g and the light REE (LREE)/heavy REE (HREE) ratio of 4.84. The shale-normalized PEE 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 in were lower than those below 2000 m. The change in RE E 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 Cc in crusts existed mainly as Ce(IV), implying that the oxidative-enriching process was controlled by kinetic factors. |
| 关键词 | Rare Earth Elements Cobalt-rich Crusts Mid-pacific Ocean m Seamount |
| 学科领域 | Chemistry, Applied |
| DOI | 10.1016/S1002-0721(08)60214-8 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264902900036 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/3654 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 260071, Peoples R China 2.SOA, Key Lab Marine Sedimentol & Environm Geol, Inst Oceanog 1, Qingdao 266061, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Cui Yingchun,Liu Jihua,Ren Xiangwen,et al. Geochemistry of rare earth elements in cobalt-rich crusts from the Mid-Pacific M seamount[J]. JOURNAL OF RARE EARTHS,2009,27(1):169-176. |
| APA | Cui Yingchun,Liu Jihua,Ren Xiangwen,&Shi Xuefa.(2009).Geochemistry of rare earth elements in cobalt-rich crusts from the Mid-Pacific M seamount.JOURNAL OF RARE EARTHS,27(1),169-176. |
| MLA | Cui Yingchun,et al."Geochemistry of rare earth elements in cobalt-rich crusts from the Mid-Pacific M seamount".JOURNAL OF RARE EARTHS 27.1(2009):169-176. |
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