| 囊谦盆地贡觉组砂岩岩石学特征与物源分析 |
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| 引用本文： | 杜后发,朱志军,姜勇彪,杨天南,刘燕学,郭福生. 囊谦盆地贡觉组砂岩岩石学特征与物源分析[J]. 岩石矿物学杂志, 2011, 30(3): 401-408 |
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| 作者姓名： | 杜后发 朱志军 姜勇彪 杨天南 刘燕学 郭福生 |
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| 作者单位： | 1. 东华理工大学,地球科学学院,江西,抚州,344000
2. 中国地质科学院,地质研究所,北京,100037 |
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| 基金项目： | 国家自然科学基金资助项目，中国地质调查局地质调查工作项目 |
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| 摘 要： | 在详细观察描述砂岩宏观特征的基础上,对贡觉组碎屑岩骨架组分、常量元素变化规律进行分析,研究了该地区砂岩的岩石学和物源特征,并指出囊谦盆地的沉积序列由下而上(Eg1～Eg5)具砂岩成分成熟度由差变好再变差的趋势.物源演变趋势分析揭示,沉积早期盆地北、西北部的构造运动强烈,为第二段(Eg2)沉积时期提供成熟度很低的碎屑物质...
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| 关 键 词： | 囊谦盆地 砂岩 岩石学特征 物源演变 |
| 收稿时间： | 2010-11-30 |
| 修稿时间： | 2011-03-28 |
Petrological characteristics and provenance analysis of sandstones of Gonjo Formation in Nangqen basin |
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| DU Hou-f,ZHU Zhi-jun,JIANG Yong-biao,YANG Tian-nan,LIU Yan-xue and GUO Fu-sheng. Petrological characteristics and provenance analysis of sandstones of Gonjo Formation in Nangqen basin[J]. Acta Petrologica Et Mineralogica, 2011, 30(3): 401-408 |
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| Authors: | DU Hou-f ZHU Zhi-jun JIANG Yong-biao YANG Tian-nan LIU Yan-xue GUO Fu-sheng |
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| Affiliation: | DU Hou-fa1,ZHU Zhi-jun1,JIANG Yong-biao1,YANG Tian-nan2,LIU Yan-xue2 and GUO Fu-sheng1(1.College of Earth Sciences,East China Institute of Technology,Fuzhou 344000,China,2.Institute of Geology,CAGS,Beijing 100037,China) |
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| Abstract: | Nangqen basin is a typical representative of the medium-mini-type Paleogene basins controlled by local NNW-treading faults distributed along Jinsha River-Red River belt on the northeastern margin of Qinghai-Tibet plateau.Gonjo Formation is perfectly developed and dominated by a set of thick-bedded,purplish red,red terrigenous clastic rock formation containing gypsum rock in association with large-scale high potassium rocks in Nangqen basin.Combined with results of field geological investigation and analysis... |
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| Keywords: | Nangqen sandstone petrological characteristics provenance evolution |
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