| 北京西山下苇甸中寒武统碳酸盐岩微相及沉积相研究 |
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| 引用本文： | 张旭,张宁,杨振鸿,鲍征宇,夏文臣. 北京西山下苇甸中寒武统碳酸盐岩微相及沉积相研究[J]. 地质科技情报, 2009, 28(6) |
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| 作者姓名： | 张旭 张宁 杨振鸿 鲍征宇 夏文臣 |
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| 作者单位： | 中国地质大学地球科学学院,武汉,430074;湖北省地质调查院,武汉,430034;中国地质大学地球科学学院,武汉,430074;中国地质大学地球科学学院,武汉,430074;中国地质大学地质过程与矿产资源国家重点实验室,武汉,430074 |
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| 基金项目： | 大型油气田及煤层气开发科技重大专项(2008ZX05050) |
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| 摘 要： | 采用微相分析的方法,对北京西山下苇甸剖面中寒武统碳酸盐岩的生物组合、颗粒成分、基质类型及其结构等微相特征做了深入研究,区分出8种碳酸盐岩微相类型,即微角砾状生屑-岩屑泥粒灰岩,异地生屑泥粒—粒泥灰岩,含包壳鲕粒和磨圆生屑的泥粒—粒泥灰岩,含包壳鲕粒的颗粒灰岩,海百合茎泥粒灰岩,同心圆鲕粒颗粒灰岩,泥晶鲕粒颗粒—泥粒灰岩,放射鲕粒颗粒—泥粒灰岩。8种微相类型在中寒武统剖面上不等同出现构成了代表两次海平面下降—上升的演化过程,即由徐庄组下部的开阔台地相开始,向上至徐庄组上部变化为滩前斜坡相,张夏组下部又返回至开阔台地相,最后在张夏组上部又以滩前斜坡相告终。
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| 关 键 词： | 碳酸盐岩 微相特征 沉积相 北京西山 |
Carbonate Microfacies and Sedimentary Facies of Middle Cambrian Formation at Xiaweidian Profile in Western Hills, Beijing,China |
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| ZHANG Xu,ZHANG Ning,YANG Zhen-hong,BAO Zheng-yu,XIA Wen-chen. Carbonate Microfacies and Sedimentary Facies of Middle Cambrian Formation at Xiaweidian Profile in Western Hills, Beijing,China[J]. Geological Science and Technology Information, 2009, 28(6) |
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| Authors: | ZHANG Xu ZHANG Ning YANG Zhen-hong BAO Zheng-yu XIA Wen-chen |
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| Affiliation: | 1a.Faculty of Earth Sciences;1b.State Key Laboratory of Geological Processes and Mineral Resources;China University of Geoscieces;Wuhan 430074;China;2.Hubei Institute of Geological Survey;Wuhan 430034;China |
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| Abstract: | By means of microfacies analysis,this paper studies in detail the grain composition,the types and texture of the matrix,the microfacies characteristics of the carbonate rocks of Middle Cambrian of Xiaweidian profile in Western Hills,Beijing.The Middle Cambrian carbonate rocks in the studied profile can be mainly divided into eight microfacies types,including microbreccia bioclastic-lithoclastic packstone,allochthonous bioclastic packstone and wackstone,packstone and wackstone with coated micrite ooids and a... |
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| Keywords: | carbonate rock microfacies character sedimentary facies Western Hills in Beijing |
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