| 羌塘东部治多县索加一带早石炭世杂多群火山岩特征及其构造环境 |
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| 引用本文： | 白云山,李莉,牛志军,段其发,涂兵.羌塘东部治多县索加一带早石炭世杂多群火山岩特征及其构造环境[J].华南地质与矿产,2009(3):8-11,42. |
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| 作者姓名： | 白云山 李莉 牛志军 段其发 涂兵 |
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| 作者单位： | 宜昌地质矿产研究所,湖北,宜昌,443003 |
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| 基金项目： | 中国地质调查局1:25万直根尕卡幅区调项目 |
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| 摘 要： | 羌塘东部冶多县索加一带的杂多群火山岩是由玄武岩组成的基性熔岩，属钙碱性玄武岩系列，稀土元素特征表现为轻稀土显著富集，Eu为轻微负异常，富集大离子亲石元素，高场强元素分异，反映了板内拉张环境特征。
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| 关 键 词： | 火山岩 构造环境 羌塘东部 索加 |
The geochemical characteristics and tectonic setting of volcanic rocks from early Carboniferous Zaduo group in Suojia area, Zhiduo County, eastern Qiangtang |
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| BAI Yun -shan,LI Li,NIU Zhi -jun,DUAN Qi -fa,TU Bing.The geochemical characteristics and tectonic setting of volcanic rocks from early Carboniferous Zaduo group in Suojia area, Zhiduo County, eastern Qiangtang[J].Geology and Mineral Resources of South China,2009(3):8-11,42. |
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| Authors: | BAI Yun -shan LI Li NIU Zhi -jun DUAN Qi -fa TU Bing |
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| Institution: | ( Yichang Institute of Geology and Mineral Resources, Yichang 443003, Hubei, China) |
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| Abstract: | The volcanics of lower Carboniferous Zaduo group which is found in Zhiduo county, weastem Qiangtang block, is mainly consist of basic lavas. These basalt rocks are belongs to calc - alkali rock series, and have get enriched in light rare earth elements and lithophile elements, and slightly negative Eu anomaly, and fractionated high field strength elements, which indicate these basalt lavas formed in intra - continental extension environment. |
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| Keywords: | volcanic rocks tectonic setting Suojia eastern Qiangtang |
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