| 吉林省伊通火山群 |
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| 引用本文： | 王振中.吉林省伊通火山群[J].吉林地质,1994,13(2):29-35,41. |
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| 作者姓名： | 王振中 |
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| 作者单位： | 吉林省地质科学研究所 |
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| 摘 要： | 伊通火山群形成于第三纪，玄武岩来自上地幔，受断裂控制。火山机构多是由未喷出地表的玄武岩、地幔岩捕获体及少许隐爆角砾岩组成，发育奇特有规律排列的节理柱组合系统展现了潜火山生成在近地表下环境。
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| 关 键 词： | 潜火山 上地幔 节理柱 伊通火山群 |
THE YOTONG VOLCANIC CLUSTER OF JIL IN PROVINCE |
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| Wang Zhenzhong.THE YOTONG VOLCANIC CLUSTER OF JIL IN PROVINCE[J].Jilin Geology,1994,13(2):29-35,41. |
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| Authors: | Wang Zhenzhong |
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| Abstract: | The Yitong volcanic cluster is formed in the Tertiary. The basalt is derived from the up-per mantle which it is controlled by the fractures.Most of volcanic apparatuses are formed bythe unextrusive basalts,pyrolite xenolith and a few cryptoexplosive breccias.The combina-tion system of joint prisms which are well-developed and in a regular arrangment shows thenear-surface formative environment of subvolcano. |
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| Keywords: | Subvolcano Upper mantle Joint prism |
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