Geochemical Characteristics of Rare Earth Elements in Qierikeqi Siderite Deposit of Xinjiang
详细信息
- 责任者：Li Jinhu (Third Geological Team ; Non-Ferrous Metals Geological and Mineral Resources Bureau of Henan Provincial ; Zhengzhou 450016 ; China) ; Zhang Zhihui
- 刊名：Mineral Resources and Geology
- 出版年：2011
- 卷期：25(1)
- 关键词：菱铁矿 ; siderite ; 稀土元素 ; rare earths ; 新疆 ; Xinjiang
- 页码：p.69-73
- 图表：4 illus., 1 table, 17 refs.
- 分类号：1001
- issnNo：ISSN1001-5663
- isbnNo：CN45-1174/TD
摘要
Qierikeqi siderite deposit occurs in low-metamorphic rocks of Silurian System Wenquangou Group and it is composed of three ore bodies, which are typically layer or lens-like and about 1500～2 500 meters long, 10～70 meters thick. The ores have a high total content of rare earth elements (∑REE=740.97～820.21 ppm), and the enrichment characteristics of light rare earth elements (LREE/HREE=13.17～14.74) suggest that the siderite is formed in medium-low alkali ore-bearing solution. The apparent positive anomaly of Ce(δCe=3.25～4.56) and feeble negative anomaly of Eu(δEu=0.64～0.94) indicates the relative reduction metallogenic environment. The Y/Ho average value of ore and siderite are both less than 28, which shows the deposits with hydrothermal genesis characteristics.