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| 海相烃源岩中高活性铁丰度对古生产力的指示 | |
| 引用本文： | 严德天,汪建国,张丽琴.海相烃源岩中高活性铁丰度对古生产力的指示[J].中南大学学报(自然科学版),2010,41(1). |
| 作者姓名： | 严德天 汪建国 张丽琴 |
| 作者单位： | 1. 中国地质大学(武汉)生物地质与环境地质教育部重点实验室,湖北,武汉,430074;中国科学院,南京地质古生物研究所现代古生物学和地层学国家重点实验室,江苏,南京,210008 2. 中国科学院,地质与地球物理研究所,北京,100029 3. 武汉大学,地球空间环境与大地测量教育部重点实验室,湖北,武汉,430079 |
| 基金项目： | 生物地质与环境地质教育部重点实验室开放基金资助项目，现代古生物学和地层学国家重点实验室开放基金资助项目，国家自然科学基金资助项目 |
| 摘 要： | 对扬子地区上奥陶统五峰组和下志留统龙马溪组烃源岩中总铁、高活性铁和有机碳含量等进行分析。研究结果表明:有机碳含量为0.23%～9.32%,平均值为3.62%;总铁含量普遍较高,为0.88%～5.03%,平均含量为2.47%;高活性铁含量为0.19%～1.56%,平均含量仅为0.91%;总铁丰度与有机碳含量变化差异较大,相关系数为0.29;高活性铁丰度与有机碳含量变化相关性十分显著,相关系数达0.76;总铁丰度并不是指示古生产力的理想指标,但高活性铁丰度可以作为指示古生产力变化的1个替代性指标。 |
| 关 键 词： | 高活性铁 有机碳 烃源岩 古生产力 |
Relationship between highly reactive iron and palaeo-productivity in marine sediment |
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| YAN De-tain,WANG Jian-guo,ZHANG Li-qin.Relationship between highly reactive iron and palaeo-productivity in marine sediment[J].Journal of Central South University:Science and Technology,2010,41(1). | |
| Authors: | YAN De-tain WANG Jian-guo ZHANG Li-qin |
| Institution: | YAN De-tian1,2,WANG Jian-guo3,ZHANG Li-qin4 (1. Key Laboratory of Education Ministry for Biogeology , Environment Geology,China University of Geosciences (Wuhan),Wuhan 430074,Chin,2. State Key Laboratory of Palaeobiology , Stratigraphy,Nanjing Institute of Geology , Palaeontology,Chinese Academy of Sciences,Nanjing 210008,China,3. Institute of Geology , Geophysics,Beijing 100029,4. Key Laboratory of Geospace Environment , Geodesy of Ministry of Edu... |
| Abstract: | Total iron, highly reactive iron and organic carbon contents of sediments from the upper Ordovician Wufeng Formation and the lower Silurian Longmaxi Formation in Yangtze area were analyzed. The results show that organic carbon content is 0.23%9.32% (average value is 3.62%), total iron content is 0.88%5.03% (average value is 2.47%), and highly reactive iron content is 0.19%1.56% (average value is 0.91%). There is little relativity between total iron and organic carbon and the correlative coefficient is 0.29.... |
| Keywords: | highly reactive iron organic carbon source rock palaeo-productivity |
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