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Geochemistry of rare earth elements in cobalt-rich crusts from the Mid-Pacific M seamount

文献类型：期刊论文

作者Cui Yingchun1,2,3; Liu Jihua2; Ren Xiangwen2; Shi Xuefa2
刊名JOURNAL OF RARE EARTHS
出版日期2009-02-01
卷号27期号:1页码:169-176
关键词Rare Earth Elements Cobalt-rich Crusts Mid-pacific Ocean m Seamount
ISSN号1002-0721
DOI10.1016/S1002-0721(08)60214-8
其他题名mannual of IR
文献子类Article
英文摘要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.
学科主题Chemistry, Applied
语种英语
WOS记录号WOS:000264902900036
公开日期2010-12-22
源URL[http://ir.qdio.ac.cn/handle/337002/3655]  
专题海洋研究所_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
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.

入库方式： OAI收割

来源：海洋研究所

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