| 西藏羌塘阿木岗群硅质岩段时代归属 |
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| 引用本文： | 王国芝,王成善 吴 山.西藏羌塘阿木岗群硅质岩段时代归属[J].中国地质,2002,29(2):139-142. |
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| 作者姓名： | 王国芝 王成善 吴 山 |
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| 作者单位： | 1. 中国科学院地球化学研究所,贵州贵阳,550002;成都理工学院,四川成都,610059
2. 成都理工学院,四川成都,610059 |
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| 摘 要： | 对阿木岗群硅质岩段与上覆和下伏地层的接触关系，灰岩砾石、灰岩夹层中所发现的生物化石及才玛尔错和绒马硅质岩中放射虫化石资料的对比研究表明，硅质岩段不属于基底地层，其时代相当于三叠纪，大致可与晚三叠世结扎群相对比。
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| 关 键 词： | 西藏 阿木岗群 硅质岩 三叠纪 放射虫化石 生物化石 时代归属 |
| 文章编号： | 1000-3657(2002)02-0139-04 |
The age of the Chert Member of the Amugang Group in Qiangtang, Tibet |
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| WANG Guo-zhi,WANG Cheng-shan,WU Shan.The age of the Chert Member of the Amugang Group in Qiangtang, Tibet[J].Chinese Geology,2002,29(2):139-142. |
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| Authors: | WANG Guo-zhi WANG Cheng-shan WU Shan |
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| Institution: | WANG Guo-zhi 1,2,WANG Cheng-shan 2,WU Shan 2 |
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| Abstract: | Studies of the contact relationships of the Chert Member of the Amugang Group with its overly-ing and underlying strata and fossils discovered in limestone pebbles and limestone intercalations ,as well as comparative study of the data of radiolarian fossils in cherts at Caimarco and Rongma indicate that the Chert Member is not the crystalline basement but Triassic in age and can be correlated with the Late Triassic Gyiza Group. |
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| Keywords: | Tibet Amugang Group Chert Member Triassic |
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