|
|||||
|
|
| 藏北聂荣县查吾拉区中侏罗统巴通阶与基底岩系角度不整合的发现及其地质意义 | |
| 引用本文： | 李尚林,王根厚,胡敬仁,方斌,马伯永,岳宗玉,王仁财.藏北聂荣县查吾拉区中侏罗统巴通阶与基底岩系角度不整合的发现及其地质意义[J].地质通报,2005,24(3):239-242. |
| 作者姓名： | 李尚林 王根厚 胡敬仁 方斌 马伯永 岳宗玉 王仁财 |
| 作者单位： | 1. 中国地质大学地球科学与资源学院,北京,100083;内蒙古地质矿产勘查院,内蒙古,呼和浩特,010010 2. 中国地质大学地球科学与资源学院,北京,100083 3. 西藏地质调查所,西藏,拉萨,851400 |
| 基金项目： | 中国地质调查局青藏高原1∶25万仓来拉幅(I46C004003)区域地质调查项目,国家自然科学基金项目(批准号:40172014)部分成果。 |
| 摘 要： | 在聂荣县查吾拉区一带首次发现中侏罗统巴通阶与下伏前奥陶系基底变质岩系之间呈角度不整合接触在包括查吾拉区在内的索县——左贡地层分区中．中侏罗统仅有巴通阶超覆不整合于“浅基底”变质岩系之上。反映了南、北羌塘盆地之间的中央隆起带不仅在双湖一带发育,而且在查吾拉区以东地区同样也发育。这一发现对该地层分区构造古地理的研究具有重要意义。 |
| 关 键 词： | 藏北聂荣县查吾拉区 中侏罗统巴通阶 浅基底 超覆不整合 |
| 文章编号： | 1671-2552(2005)03-0239-04 |
| 修稿时间： | 2004年10月25 |
Discovery of an angular unconformity between the Middle Jurassic Bathonian Stage ang its underlying metamorphosed basement in the Chawola district, Nyainrong County, northern Tibet, and its geological significance |
|
| LI Shanglin,WANG Genhou,HU Jingren,FANG Bin,MA Boyong,YUE Zongyu,WANG Rencai Faculty of Earth Sciences and Resources,China University of Geosciences,Beijing,Chin,Inner Mongolia Institute of Geology and Mineral Exploration,Hohhot,Inner Mongoli,Chin,Tibet Institute of Geological Survey,Lhas,Tibet,China.Discovery of an angular unconformity between the Middle Jurassic Bathonian Stage ang its underlying metamorphosed basement in the Chawola district, Nyainrong County, northern Tibet, and its geological significance[J].Geologcal Bulletin OF China,2005,24(3):239-242. | |
| Authors: | LI Shanglin WANG Genhou HU Jingren FANG Bin MA Boyong YUE Zongyu WANG Rencai Faculty of Earth Sciences and Resources China University of Geosciences Beijing Chin Inner Mongolia Institute of Geology and Mineral Exploration Hohhot Inner Mongoli Chin Tibet Institute of Geological Survey Lhas Tibet China |
| Abstract: | An angular unconformable contact was for the first time found between the Middle Jurassic Bathonian Stage and its underlying pre-Ordovician metamorphosed basement in the Chawola district, in Nyainrong County. In the Sog County-Zogang stratigraphic area, including the Chawola district, only the Bathonian Stage in the Middle Jurassic unconformably overlaps on the "shallow basement" metamorphic series. This reflects that "the central uplift" in the Qiangtang basin is developed not only area of Shuanghu but also in the east of Chawola district. This discovery has great significance for the tectonic-paleogeographic study in this stratigraphic area. |
| Keywords: | Chawola district Nyainrong County northern Tibet Middle Jurassic Bathonian Stage shallow basement overlap |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《地质通报》浏览原始摘要信息 | |
| 点击此处可从《地质通报》下载免费的PDF全文 | |