| 云南腾冲火山岩岩石学特征 |
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| 引用本文： | 陈廷方.云南腾冲火山岩岩石学特征[J].沉积与特提斯地质,2003,23(4):56-61. |
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| 作者姓名： | 陈廷方 |
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| 作者单位： | 西南科技大学,四川,绵阳,621002 |
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| 摘 要： | 腾冲火山岩群是我国著名的新生代火山岩群之一。岩相学特征表明，该火山群为典型的钙碱性系列玄武岩—安山岩—英安岩弧火山岩组合。它喷发于晚上新世—晚更新世，但这一时期腾冲地区已为大陆板内环境，腾冲弧火山岩的形成至少在俯冲作用停止以后60Ma，属于一种滞后型弧火山。
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| 关 键 词： | 腾冲 火山岩 钙碱性系列 岩相学 云南 |
| 文章编号： | 1009-3850(2003)03-0056-06 |
| 收稿时间： | 2003/6/7 0:00:00 |
| 修稿时间： | 2003年6月7日 |
The petrology of the volcanic rocks in Tengchong, Yunnan |
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| CHEN Ting-fang.The petrology of the volcanic rocks in Tengchong, Yunnan[J].Sedimentary Geology and Tethyan Geology,2003,23(4):56-61. |
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| Authors: | CHEN Ting-fang |
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| Institution: | Southwest University of Science and Technology, Mianyang 621002, Sichuan, China |
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| Abstract: | The volcanic terrains in Tengchong, Yunnan are famous Cenozoic volcanic terrains in China. The (examination) of the petrography shows that the volcanic terrains in Tengchong are typical of the basalt-(andesite)-(dacite) arc volcanic rock associations of the calc-alkaline series. These volcanic rocks were erupted during the late Pliocene to late Pleistocene when the Tengchong region was developed into a continental intraplate environment. The Tengchong arc volcanic rocks were formed at least at 60 Ma in response to the termination of the subduction in this area. |
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| Keywords: | Tengchong volcanic rock calc-alkaline series petrography Yunnan |
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