| 鄂尔多斯盆地南部中生界延长组物源与盆地底形分析 |
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| 引用本文： | 吕强,赵俊兴,陈洪德,申晓莉,罗媛.鄂尔多斯盆地南部中生界延长组物源与盆地底形分析[J].成都理工大学学报(自然科学版),2008,35(6). |
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| 作者姓名： | 吕强 赵俊兴 陈洪德 申晓莉 罗媛 |
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| 作者单位： | 成都理工大学沉积地质研究院,成都,610059;中国石油长庆油田分公司,西安,710021;成都理工大学沉积地质研究院,成都,610059;中国石油长庆油田分公司,西安,710021 |
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| 基金项目： | 国家自然科学青年基金资助项目，四川省教育厅自然科学青年基金 |
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| 摘 要： | 通过重矿物、岩屑及碎屑成分的特征研究,认为鄂尔多斯盆地延长组主要受到3大物源控制,并且可进一步划分出6个次级物源;岩性、古生物对比和物源、古地理研究证明,在延长组中期,不存在来自正东方向的"富县三角洲";通过长7高阻泥岩、有效烃源岩分布特征及沉积相、地震相研究,认为盆地底形具有"南陡北缓、西陡东缓"的特点,这种特点造成了盆地东北部主要属于缓坡型湖泊三角洲体系,而在南部、西南部则属于陡坡型扇三角洲及三角洲前缘末端的浊积扇沉积.这些认识必将有助于今后盆地的油气勘探部署.
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| 关 键 词： | 鄂尔多斯盆地 延长组 物源 富县三角洲 沉积相 湖盆底形 |
Analysis of the provenance and basin bottom shape of Yanchang epoch of Mesozoic in Ordos Basin,China |
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| LU Qiang,ZHAO Jun-xing,CHEN Hong-de,SHEN Xiao-li,LUO Yuan.Analysis of the provenance and basin bottom shape of Yanchang epoch of Mesozoic in Ordos Basin,China[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2008,35(6). |
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| Authors: | LU Qiang ZHAO Jun-xing CHEN Hong-de SHEN Xiao-li LUO Yuan |
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| Institution: | LU Qiang1,2,ZHAO Jun-xing1,CHEN Hong-de1,SHEN Xiao-li2,LUO Yuan11.Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China,2.Changqing Oilfield Company of CNPC,Xi\'an 710021 |
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| Abstract: | Based on the research of heavy minerals,debris and clastic composition,the paper indicates that there are mainly three sediment source regions and six sub-source areas in Ordos Basin.The authors consider that the Fuxian delta from the east sources does not exit in the Yanchang mid-period by studying the provenance and paleogeography and comparing lithology and paleontological.Finally,the paper also discusses the bottom shape of the lake basin of Yanchang period in Ordos based on the research of the distribu... |
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| Keywords: | Ordos Basin Yanchang Formation provenance Fuxian delta sedimentary facies bottom topography of a lake basin |
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