| 西藏堆龙德庆县马乡不整合地层的主要特征及其地质意义 |
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| 引用本文： | 土登次仁,拉巴.西藏堆龙德庆县马乡不整合地层的主要特征及其地质意义[J].西藏大学学报,2010(3):8-11,16. |
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| 作者姓名： | 土登次仁 拉巴 |
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| 作者单位： | 西藏大学理学院,西藏拉萨850000 |
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| 摘 要： | 地层不整合是研究地质发展历史及鉴定地壳特征和运动时期的重要依据。文章通过西藏拉萨市堆龙德庆县马乡不整合地层的调查,发现在堆龙德庆县马乡青藏公路两侧有一套白垩纪地层和晚白垩世早第三纪中酸性陆相火山岩系,该岩系记录了印度洋板块与欧亚板块碰撞的重要构造运动,对青藏高原的构造演化研究提供了更为详细的演化信息。
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| 关 键 词： | 堆龙马乡 不整合接触 白垩纪 地层 |
The Features of Nonconformity Strata and Its Geological Meaning in Duilong Ma Township |
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| Institution: | Thubtan Tsering Lhagba (School of Science,Tibet University Lhasa,Tibet 850000) |
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| Abstract: | Nonconformity of strata is an important basis to analyze the geology＇s development history and to examine the feature movement of the crust.A investigation of strata nonconformity was conducted in Duilong County,TAR,and we found that there is a set of acid volcanic rock system of continental faces of Cretaceous and Late-Cretaceous periods on both sides of Duilong River,Duilong Ma township,in which recorded important information of tectonic movement occurred during the collision between Indian plate and Euro-Asia plate.This finding provided more detailed evolution information for the studying of tectonic progress of the QinghaiTibetan Plateau. |
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| Keywords: | Duilong Ma Township Nonconformity touch the Cretaceous period strata |
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