| 鄂尔多斯盆地陇东地区延长组的物源分析 |
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| 引用本文： | 吴小斌,孙卫,王进军.鄂尔多斯盆地陇东地区延长组的物源分析[J].沉积与特提斯地质,2008,28(4):57-61. |
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| 作者姓名： | 吴小斌 孙卫 王进军 |
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| 作者单位： | 1. 成都地质矿产研究所,四川,成都,610082
2. 西北大学,地质学系,陕西,西安,710069 |
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| 基金项目： | 国家"973"重点科技攻关项目
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| 摘 要： | 笔者从区域沉积背景入手，对鄂尔多斯盆地陇东地区长3油层组泥岩稀土元素、碳酸盐岩岩屑、轻重矿物、砂岩粒度等进行综合分析研究，认为研究区内存在混合物源，物源方向主要有北东向和西南向，并初步判断，北东物源的边界大致在南梁-华池地区，西南物源的边界大约在悦乐地区。
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| 关 键 词： | 延长组 稀土元素 碳酸盐岩岩屑 轻重矿物 物源分析 鄂尔多斯盆地 |
Provenance analysis of the Yanchang Formation in eastern Gansu,Ordos Basin |
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| WU Xiao-bin,SUN Wei,WANG Jin-jun.Provenance analysis of the Yanchang Formation in eastern Gansu,Ordos Basin[J].Sedimentary Geology and Tethyan Geology,2008,28(4):57-61. |
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| Authors: | WU Xiao-bin SUN Wei WANG Jin-jun |
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| Institution: | WU Xiao-bin1,SUN Wei2,WANG Jin-jun1 (1.Chengdu Institute of Geology , Mineral Resources,Chengdu 610082,Sichuan,China,2.Department of Geology,Northwest University,Xi\'an 710069,Shaanxi,China) |
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| Abstract: | The synthetic analysis of REEs in mudstone,carbonate debris contents,light and heavy minerals and grain sizes of sandstone in the Chang-3 oil reservoirs shows that the sediments dominantly come from the northeast and southwest in eastern Gansu,Ordos Basin.The provenance boundaries are approximately arranged in the Nanliang-Huachi region in the northeast,and in the Yuele region in the southwest. |
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| Keywords: | Yanchang Formation REE carbonate debris light and heavy mineral provenance analysis Ordos Basin |
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