| 凡河地区雾迷山期火山岩 |
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| 引用本文： | 阎在峰.凡河地区雾迷山期火山岩[J].国土资源,1989(4). |
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| 作者姓名： | 阎在峰 |
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| 作者单位： | 辽宁省地质矿产局第九地质大队 铁岭 |
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| 摘 要： | 辽北凡河地区雾迷山期火山岩可划分为海相火山熔岩与次火山岩,受基底断裂构造控制,遭受与围岩同步的褶皱变形。海相火山熔岩主要为细碧岩、蚀变玄武岩;次火山岩主要为次蚀变辉绿岩、熔岩状次蚀变辉绿岩,两者具有相似的稀土丰度及稀土分馏特征。凡河地区火山岩形成于大陆克拉通内的活动带,即裂陷槽强烈活动阶段的产物。
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| 关 键 词： | 凡河 雾迷山期 火山岩 细碧岩 大陆克拉通 裂陷槽 |
WUMISHAN AGE VOLCANIC ROCKS IN FANHE AREA |
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| Yan Zaifeng The Ninth Geological,Team,Bureau of Geology and Mineral Resources of Liaoning,Tieling.WUMISHAN AGE VOLCANIC ROCKS IN FANHE AREA[J].Land & Resources,1989(4). |
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| Authors: | Yan Zaifeng The Ninth Geological Team Bureau of Geology and Mineral Resources of Liaoning Tieling |
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| Abstract: | Wumishan Age volcanic rocks in Fanhe area of N.Liaoning can be divided into marine volcanic lava and subvolcanic rock,controlled by fault structure of basement and deformed into fold with surround rocks.The major rock types of marine volcanic lava are spilite,altered basalt;ones of subvolcanic rock are secondary altered diabase, lava form secondary altered diabase,which have similar REE abundance and fractional distillation character.Volcanic rocks in Fanhe occurred in the belt of hedreocraton which was the product during strong activity of aulacogen. |
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| Keywords: | Fanhe Wumishan Age Volcanic rocks Spilite Hedreocraton Aulacogen |
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