| 山西大同煤田石炭系物源区构造背景分析 |
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| 引用本文： | 郗宝华,赵文艳.山西大同煤田石炭系物源区构造背景分析[J].中国煤炭地质,2011(9):14-18. |
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| 作者姓名： | 郗宝华 赵文艳 |
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| 作者单位： | 山西煤炭职业技术学院地测工程系;中国建筑材料工业地质勘查中心山西总队; |
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| 摘 要： | 通过对山西大同煤田石炭系口泉、吴家窑剖面砂体古流向分析,采用Gazzi-Dickinson计点法对两条实测剖面上40个砂岩样品进行显微镜观察统计,并应用Dickinson的Q-F-L和Qm-F-Lt三角图解对统计结果作了相应分析。认为上石炭统本溪组母岩源区以克拉通内陆型为主,母岩为沉积岩;上石炭统太原组母岩源区以再旋回造山带型为主,母岩区以沉积岩分布为主,并分布少量变质岩和岩浆岩岩体;山西大同煤田石炭系物源区为北侧的阴山隆起造山带,属陆内隆升构造带的构造背景。从而进一步证明了＂阴山古陆＂并不是自元古代以来就长期隆升的构造单元。
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| 关 键 词： | 大同煤田 石炭系 碎屑组分 物源 构造意义 |
Tectonic Setting Analysis of Datong Coalfield Carboniferous Provenance in Shanxi |
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| Xi Baohua,Zhao Wenyan.Tectonic Setting Analysis of Datong Coalfield Carboniferous Provenance in Shanxi[J].Coal Geology of China,2011(9):14-18. |
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| Authors: | Xi Baohua Zhao Wenyan |
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| Institution: | Xi Baohua1,Zhao Wenyan2(1.Department of Geology and Surveying Engineering,Shanxi Coal Professional Technology College,Taiyuan,Shanxi 030031,2.Shanxi Corps,China Building Material Industry Geological Exploration Center,Shanxi 030031) |
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| Abstract: | Through Carboniferous System Kouquan and Wujiayao sections sand-body paleocurrent analysis in Datong coalfield,Shanxi,using Gazzi-Dickinson method of point counting carried out microscopic examination statistics for forty sandstone samples from two measured sections,and corresponding analyses for statistical results using Dickinson's Q-F-L and Qm-F-Lt triangular charts as well.According to analyses considered that parent rock provenance of late Carboniferous Benxi Formation is mainly cratonic interior type ... |
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| Keywords: | Datong coalfield Carboniferous System clastic component provenance tectonic significance |
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