Geochemistry and Sedimentary Background of the Middle-Upper Permian Cherts in the Xiang-Qian-Gui Region
详细信息
- 责任者：Qiu Zhen (State Key Laboratory of Lithospheric Evolution ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Wang Qingchen
- 刊名：Acta Petrologica Sinica
- 出版年：2010
- 卷期：26(12)
- 关键词：硅质岩 ; silicolite ; 岩石地球化学 ; lithogeochemistry ; 沉积环境 ; sedimentary environment ; 湖南 ; Hunan Province ; 广西 ; Guangxi Province ; 贵州 ; Guizhou Province
- 页码：p.3612-3628
- 图表：3 illus., 3 tables, 31 refs.
- 分类号：0803
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
Based on extensive field observations and lithofacies study of the cherts in the Xiang（Hunan）-Qian（Guizhou）-Gui（Guangxi） region, the authors analyzed and compared major and trace elements of 81 samples from the Middle-Upper Permian cherts outcropping at 14 localities in the Qiangui（Guizhou-Guangxi） basin and the Xianggui（Hunan-Guangxi） basin. Al2O3 contents, TiO2 contents, the ratios of Al2O3/（Al2O3+Fe2O3）, ∑REE and the values of Ce/Ce* of the Middle Permian cherts are totally low, and show a same distribution tendency in the studied region.
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