| 鄂尔多斯盆地镇北地区延长组长7沉积期物源分析 |
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| 引用本文： | 周黎霞,王居里,张雷.鄂尔多斯盆地镇北地区延长组长7沉积期物源分析[J].西安文理学院学报,2011(4):82-86,94. |
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| 作者姓名： | 周黎霞 王居里 张雷 |
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| 作者单位： | [1]低渗透油气田勘探开发国家工程实验室,陕西西安710018 [2]长庆油田分公司勘探开发研究院,陕西西安710018 [3]西北大学地质系,陕西西安710069 |
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| 摘 要： | 收集前人研究成果,结合薄片鉴定、重矿物分析、稀土元素及地震等资料,对鄂尔多斯盆地延长组长7沉积期物源进行分析.结果表明：镇北地区延长组长7物源来自盆地西部和西南方向,其中西南物源为主要物源区,主要岩性为变质岩、中酸性岩浆岩;西部方向仅为沉积区提供白云岩等碳酸盐岩碎屑.
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| 关 键 词： | 碎屑岩成熟度 重矿物 稀土元素 聚类分析 物源方向 |
An Analysis of Sediment Provenance of the Chang7 Oil-bearing in the Zhenbei Area,Ordos Basin |
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| ZHOU Li-xia,WANG Ju-li,ZHANG Lei.An Analysis of Sediment Provenance of the Chang7 Oil-bearing in the Zhenbei Area,Ordos Basin[J].Journal of Xi‘an University of Arts & Science:Natural Science Edition,2011(4):82-86,94. |
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| Authors: | ZHOU Li-xia WANG Ju-li ZHANG Lei |
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| Institution: | 1.National Engineering Laboratory for Low-permeability Petroleum Exploration and Development,Xi＇an 710018,China; 2.Research Institute of Exploration and Development,Changqing Oilfield Company,PetroChina,Xi＇an 710018,China; 3.Department of Geology,Northwest University,Xi＇an 710069,China) |
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| Abstract: | Based on previous research and the references concerning thin section identification,heavy mineral analysis,rare earth elements and seismic data,we give an analysis of Chang 7 sedimentary provenance in Ordos Basin.The result shows that Chang 7 source in Zhenbei area is from the west and southwest of the basin.The main provenance is the southwest area where the major lithology is that of metamorphic rocks and intermediate-acid magmatic rocks.The west area is only the sedimentary provenance where dolomite and other carbonate rock debris are found. |
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| Keywords: | clastic rock maturity heavy minerals rare earth elements cluster analysis source direction |
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