| 鄂尔多斯盆地东南部中侏罗统延安组物源分析 |
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| 引用本文： | 黄岗,周锡强,王正权.鄂尔多斯盆地东南部中侏罗统延安组物源分析[J].矿物岩石地球化学通报,2009,28(3):252-258. |
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| 作者姓名： | 黄岗 周锡强 王正权 |
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| 作者单位： | 1. 长庆油田,第三采油厂吴起作业区,陕西,吴起,716000
2. 中国科学院,地质与地球物理研究所,北京,100029 |
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| 摘 要： | 中侏罗统延安组是鄂尔多斯盆地东南部的一套重要的含油气层系.通过对砂岩中碎屑岩成分、重矿物组合、石英的阴极发光及其泥岩微量地球化学等特征的研究,结合露头剖面古水流方向的测定,分析了鄂尔多斯盆地东南部中侏罗统延安组物源区的母岩性质、物源方向及其构造环境.结果表明,研究区延安组古水流和主要物源方向来自北东、北西方向.母岩主要为北缘阴山、东北缘吕梁山和西北缘阿拉善地区太古代及早元古代的花岗岩类、片麻岩系和浅变质岩系,并且推断这些地区从晚古生代开始,就长期为全盆地的沉积提供稳定的物源.这将对盆地的油气进行进一步勘探及开发和周缘地质构造研究具有重要的意义.
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| 关 键 词： | 鄂尔多斯盆地 古水流与物源 重矿物组合 稀土元素 延安组 |
Provenance Analysis of the Yan'an Formation in Mid-Jurassic at the Southeast Area of Ordos Basin |
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| HUANG Gang,ZHOU Xi-qiang,WANG Zheng-quan.Provenance Analysis of the Yan'an Formation in Mid-Jurassic at the Southeast Area of Ordos Basin[J].Bulletin of Mineralogy Petrology and Geochemistry,2009,28(3):252-258. |
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| Authors: | HUANG Gang ZHOU Xi-qiang WANG Zheng-quan |
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| Institution: | HUANG Gang1,ZHOU Xi-qiang2,WANG Zheng-quan11.Wuqi Production Operation Area No.3 Oil Production PetroChina Changqing Oilfield Company,Wuqi 716000,Shannxi,China,2.Institute of Geology , Geophysics,Chinese Academy of Sciences,Beijing 100029 |
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| Abstract: | The Yan'an Formation in the southeast area of the Ordos basin is an important oil-bearing series of middle Jurassic.Features of parent rocks,provenance and relevant tectonic setting of sediments of the Yan'an Formation in the southeast area of the Ordos basin have been studied by many methods,such as the analyses of clastic rock components,heavy minerals contents,cathodoluminescence of quartz,REE characteristics of mudstone,and field paleocurrent survey.The study shows that the dominant paleocurrent and sed... |
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| Keywords: | Ordos basin paleocurrent and provenance heavy mineral group rare earth element Yan'an formation |
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