| 柴达木盆地北缘滩间山群火山岩及形成环境 |
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| 引用本文： | 庄儒新,李峰.柴达木盆地北缘滩间山群火山岩及形成环境[J].云南地质,2006,25(2):209-217. |
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| 作者姓名： | 庄儒新 李峰 |
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| 作者单位： | 昆明理工大学国土资源学院,地球科学系,昆明,650093 |
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| 摘 要： | 上奥陶统滩间山群以浅变质的中基性火山岩为主，均历经不同程度蚀变，选用相对稳定的高场强元素、稀土元素及Th、Y等研究火山岩原岩组成。岩石化学和微量元素判别标志指示火山岩形成于岛弧环境。
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| 关 键 词： | 岛弧环境 中基性 火山岩 滩间山群 柴达木盆地北缘 青海 |
| 文章编号： | 1004-1885（2006）02-209-09 |
| 收稿时间： | 2005-08-16 |
| 修稿时间： | 2005-08-16 |
THE CHARACTERISTICS AND FORMATION ENVIRONMENT OF TANJIANSHAN GROUP VOLCANIC ROCK OF NORTH MARGIN OF CHAIDAMU BASIN |
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| ZHUANG Ru-xin,LI Feng.THE CHARACTERISTICS AND FORMATION ENVIRONMENT OF TANJIANSHAN GROUP VOLCANIC ROCK OF NORTH MARGIN OF CHAIDAMU BASIN[J].Yunnan Geology,2006,25(2):209-217. |
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| Authors: | ZHUANG Ru-xin LI Feng |
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| Abstract: | The epimetamorphic intermediate- basic volcanic rock is the main rock in the Tanjianshan Group, which has experienced the alteration of different degree. We have studied the composition of premary rock of volcanic rock in selection of the relative stable high field intensity element, REE and Th, V, etc. The diseriminant indicators of petrochemistry and trace element show that the volcanic rock is formed in the environment of an island arc. |
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| Keywords: | Environment of Island Arc Intermediate - Basic Volcanic Rock Tanjianshan Group North Margin of Chaidamu Basin Qinghai |
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