| 大理—剑川地区新生儿火山岩岩石学特征及火山喷发期研究 |
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| 引用本文： | 沙绍礼,敖德恩.大理—剑川地区新生儿火山岩岩石学特征及火山喷发期研究[J].云南地质,2001,20(4):361-368. |
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| 作者姓名： | 沙绍礼 敖德恩 |
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| 作者单位： | 云南省地质矿产勘查开发局第三地质大队,云南,大理,671000 |
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| 摘 要： | 大理－剑川地区分布一套新生代火山岩，称剑川组。以洱海断裂带为界，东侧主要为基性，超基性岩，西侧主要为粗面岩。据火山岩系沉积特征及所含植物化石判断，喷发期为中新世，原划分的双河组，剑川组应是同期产物。
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| 关 键 词： | 新生代火山岩 岩石特征 喷发时期 大理－剑川地区 岩石学特征 |
| 文章编号： | 1004-1885(2001)04-361-8 |
| 修稿时间： | 2001年1月8日 |
A STUDY ON THE PETROGRAPHIC CHARACTERISTICS AND ERUPTION PERIOD OF THE CENOZOIC VOLCANIC ROCK IN DALI-JIANCHUAN AREA |
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| SHA Shao-li,AO De-en.A STUDY ON THE PETROGRAPHIC CHARACTERISTICS AND ERUPTION PERIOD OF THE CENOZOIC VOLCANIC ROCK IN DALI-JIANCHUAN AREA[J].Yunnan Geology,2001,20(4):361-368. |
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| Authors: | SHA Shao-li AO De-en |
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| Abstract: | In Dali-Jianchuan area, there is a set of Cenozoic volcanic rocks called Jianchuan Formation. With the Erhai fault zone as a boundary, they are mainly basic and ultrabasic rocks in the east side, trachyte in the west side. According to the sedimentary characteristics and flora of them, their eruption period is Miocene, which are formed in the same time as the original Shuanghe Formation, Jianchuan Formation. |
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| Keywords: | Cenozoic Volcanic Rock Petrographic Characteristics Eruption Period Dali-Jianchuan Area |
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