| 浙江湖州黄芝山剖面长兴组顶部古剥蚀面的识别及其地质意义 |
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| 引用本文： | 杜永灯,张磊,王伟洁,冯庆来.浙江湖州黄芝山剖面长兴组顶部古剥蚀面的识别及其地质意义[J].地质论评,2009,55(4):503-508. |
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| 作者姓名： | 杜永灯 张磊 王伟洁 冯庆来 |
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| 作者单位： | 1. 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
2. 中国地质大学,武汉,生物地质与环境地质教育部重点实验室,武汉,430074 |
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| 基金项目： | 本文为国家自然科学基金创新团队项目(编号 40621002)、111项目(编号 B08030)和教育部高等学校博士学科点专项科研基金项目（编号 20060491502）的成果 |
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| 摘 要： | 通过浙江湖州黄芝山剖面的研究，发现其长兴组顶部存在清晰古风化壳残积物，本文描述了该古风化壳的沉积特征。精细的牙形石古生物地层学研究表明，该古风化壳代表的平行不整合面位于Clarkina meishanensis meishanensis带的底部，其层位相当于浙江煤山D剖面的25层底部，与二叠纪末生物集群灭绝主灭绝期层位基本一致。所以深入研究该古风化壳对探讨二叠纪末海平面变化和生物集群灭绝具有重要意义。
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| 关 键 词： | 二叠纪末 风化壳 海平面变化 牙形石生物地层带 浙江 |
| 收稿时间： | 2009/2/20 0:00:00 |
| 修稿时间： | 2009/5/24 0:00:00 |
Paleo weathering Crust at the Top of the Changxing Formation in Huangzhishan Section, Huzhou, Zhejiang, and Its Geological Significance |
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| DU Yongdeng,ZHANG Lei,WANG Weijie,FENG Qinglai.Paleo weathering Crust at the Top of the Changxing Formation in Huangzhishan Section, Huzhou, Zhejiang, and Its Geological Significance[J].Geological Review,2009,55(4):503-508. |
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| Authors: | DU Yongdeng ZHANG Lei WANG Weijie FENG Qinglai |
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| Institution: | DU Yongdeng1),ZHANG Lei2),WANG Weijie2),FENG Qinglai1)1) State Key Laboratory of Geo-Processes and Mineral Resources,China University of Geosciences,Wuhan,430074,2) Laboratory of Bio-and Environment Geology |
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| Abstract: | Well-preserved weathering crust is discovered at the top of the Changxing Formation in Huangzhishan section,Huzhou,Zhejiang. The characteristics of the weathering crust are described in this paper. The unconformity represented by the weathering crust is located at the lowermost part of Clarkina meishanensis meishanensis Zone. In stratigraphic horizon,it can be correlated with the bottom of the Bed 25 at the Meishan Section D and is coincident with the main episode of the mass extinction at the end-Permian. ... |
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| Keywords: | the end-Permian crust of weathering Zhejiang |
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