| 鄂尔多斯盆地南缘下奥陶统马家沟组马六段成藏潜力分析 |
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| 引用本文： | 白海峰,马占荣,刘宝宪.鄂尔多斯盆地南缘下奥陶统马家沟组马六段成藏潜力分析[J].西北地质,2010,43(1):107-114. |
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| 作者姓名： | 白海峰 马占荣 刘宝宪 |
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| 作者单位： | 长庆油田公司勘探开发研究院,陕西,西安,710021 |
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| 摘 要： | 鄂尔多斯盆地下奥陶统马家沟组马六段在盆地南缘广泛分布,从北向南厚度增大。岩性为含藻石灰岩、云斑灰岩、粉晶白云岩和颗粒白云岩。从早奥陶世华北地台南缘大地构造背景出发,分析了鄂尔多斯盆地南缘下奥陶统马家沟组马六段的沉积环境和沉积模式。综合露头剖面与井下岩心分析资料及岩性组合特征,探讨了马六段成藏要素及其空间配置关系,指出马六段以局限洼地和白云质石灰岩台坪沉积为主,局部层段发育礁滩相沉积,经后期成岩白云岩化可形成有效的白云岩储层,与上覆富含泥质的平凉组共同形成上生下储型成藏组合,具有一定的资源潜力。
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| 关 键 词： | 华北板块 鄂尔多斯盆地 马六段 礁滩相 气藏 |
Reservoir-Forming Potential of Majiagou Formation Ma-6 Section in Lower Ordovician in Southern Margin of Ordos Basin |
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| BAI Hai-feng,MA Zhan-rong,LIU Bao-xian.Reservoir-Forming Potential of Majiagou Formation Ma-6 Section in Lower Ordovician in Southern Margin of Ordos Basin[J].Northwestern Geology,2010,43(1):107-114. |
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| Authors: | BAI Hai-feng MA Zhan-rong LIU Bao-xian |
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| Institution: | BAI Hai-feng,MA Zhan-rong,LIU Bao-xian(Research Institute of Exploration and Development,Changqing Oilfield Company,Xi'an 710021,shaanxi,China) |
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| Abstract: | Lower Ordovician Majiagou formation Ma-6 section distributes abroadly along the southern margin of Ordos Basin,its thichness increases gradually from north to south,mainly consists of algal limestone,patchy limestone,powder crystal dolomite,and grained dolomite.Based on the geotectonic background of the southern margin of the North China platform of the lower Ordovician,the sedimentary environments and sedimentary patterns of Majiagou Formation are analyzed and the reservoir-forming factors and their space ... |
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| Keywords: | North China plate Ordos Basin Ma6 Section reef flat facies gas reservoir |
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