REE Characteristics and Its Geological Significance of Buqu Formation Carbonate Source Rocks in Nadigangri Area, Qiangtang Basin of Tibet
详细信息
- 责任者：Chen Wenbin (Chengdu Institute of Geology and Mineral Resources ; Chengdu 610081 ; China) ; Tan Fuwen
- 刊名：Acta Sedimentologica Sinica
- 出版年：2011
- 卷期：29(3)
- 关键词：烃源岩 ; source rocks ; 碳酸盐岩 ; carbonate rocks ; 稀土元素 ; rare earths ; 羌塘盆地 ; Qiangtang Basin
- 页码：p.529-536
- 图表：5 illus., 2 tables, 28 refs.
- 分类号：1003
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
Rare earth element concentrations were determined in 15 Middle Jurassic carbonate source rocks from Buqu Formation in Nadigangri area, Qiangtang basin of Qinghai-Tibet Plateau. The results show that analyses of the REEs,especially ΣREE,Ce/Ce* values and Eu/Eu* values change regularly, which are closely related to it’s sedimentary environment. Being the continuous of expansion of transgression and the water column’s stratification effects, some water column in the bottom become into reducing environment for lacking of oxygen.