| 川西坳陷中段中侏罗统沙溪庙组储层砂岩物源分析 |
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| 引用本文： | 安红艳,时志强,张慧娟,曾德勇,张华.川西坳陷中段中侏罗统沙溪庙组储层砂岩物源分析[J].四川地质学报,2011,31(1):29-33. |
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| 作者姓名： | 安红艳 时志强 张慧娟 曾德勇 张华 |
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| 作者单位： | 成都理工大学沉积地质研究院,成都,610059 |
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| 摘 要： | 川西坳陷中段中侏罗统沙溪庙组是重要的含气层.沙溪庙组储层砂岩以岩屑长石砂岩、长石岩屑砂岩为主,具有明显的沉积相分异.龙门山前和川西坳陷内砂岩的碎屑组分存在明显的差异,前者具有"贫长石,高石英"的特征,后者则"富长石、低石英",前者成分成熟度高于后者.根据研究区地层斜层理对沙溪庙组岩层古水流综合分析表明,古水流方向以北西...
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| 关 键 词： | 沙溪庙组 古水流 重矿物 川西坳陷 |
On Material Source of Sandstone Reservoir of the Middle Jurassic Shaximiao Formation in West Sichuan Depression |
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| AN Hong-yan,SHI Zhi-qiang,ZHANG Hui-juan,ZENG De-yong,ZHANG Hua.On Material Source of Sandstone Reservoir of the Middle Jurassic Shaximiao Formation in West Sichuan Depression[J].Acta Geologica Sichuan,2011,31(1):29-33. |
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| Authors: | AN Hong-yan SHI Zhi-qiang ZHANG Hui-juan ZENG De-yong ZHANG Hua |
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| Institution: | AN Hong-yan SHI Zhi-qiang ZHANG Hui-juan ZENG De-yong ZHANG Hua(Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059) |
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| Abstract: | The Middle Jurassic Shaximiao Formation is an important gas reservoir in the middle west Sichuan depression.The Shaximiao Formation is mainly composed of lithic arkose and feldspathic lithic sandstone.The study indicates that the paleocurrent was NW-SE,secondly,W-E and NE-SW trending.The heavy mineral association may be divided into 3 groups.Comprehensive study indicates that material of the Shaximiao Formation was derived from Longmen Mountains in west and Micang and Daba Mountains in north. |
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| Keywords: | Shaximiao Formation paleocurrent heavy mineral west Sichuan depression |
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