line-level: 2" class=MsoNormal>Rare Earth Element Characteristics of Bagemaode Oil Shale, oft-com:office:smarttags" />
详细信息
- 责任者：Liu Rong (College of Earth Sciences ; Jilin University ; Changchun 130061 ; China) ; Liu Zhaojun
- 刊名：Geochimica
- 出版年：2010
- 卷期：39(4)
- 关键词：油页岩 ; oil shale ; 稀土元素 ; rare earths
- 页码：p.364-370
- 图表：3 illus., 3 tables, 32 refs.
- 分类号：1003
- issnNo：ISSN0379-1726
- isbnNo：CN44-1398/P
摘要
In this study, the authors analyze the REE concentrations of Bagemaode oil shale in the Bayingebi Formation(K1b), Bagemaode Depression in the Inner Mongolia, China. The total REE content is lower than that of the country rocks. ∑LREE / ∑HREE varies between 2.60 and 3.45, 3.10 in average, (La /Yb)N between 0.57 and 1.02, 0.89 in average. The data shows slight LREE enrichment. The REE patterns are characterized by markedly negative anomalies of Eu and slight positive anomalies of Ce, which suggests the Bagemaode oil shale was formed in anoxic paleolake environment. Based on the clustering analysis of total and individual REE concentrations, the authors conclude that the REE in the Bagemaode oil shale generated from territorial clastic deposits. In addition, there is no evident correlation among δCe, δEu, and ∑REE, suggesting that diagenesis had limited influence on REE concentrations. Thus, the authors interpret that the diagenesis phase of the Bagemaode oil shale is unmatured period.