| 鄂西北北部耀岭河群变火山岩堆积序列 |
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| 引用本文： | 刘波,张子才,雷世和,秦正永.鄂西北北部耀岭河群变火山岩堆积序列[J].资源环境与工程,1993(2). |
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| 作者姓名： | 刘波 张子才 雷世和 秦正永 |
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| 作者单位： | 天津地矿研究所，鄂西北地矿调查所，河北地质学院，天津地质矿产研究所 |
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| 摘 要： | 晚元古代耀岭河群火山岩可分为熔岩相和火山碎屑岩相。熔岩相以玄武质熔岩为主,在火山口附近有少量酸性熔岩。火山碎屑岩相由火山碎屑涌流堆积、火山碎屑流堆积和空落火山碎屑堆积组成。在近火山口的大山碎屑层序的底部有集块岩和岩块角砾分布。
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| 关 键 词： | 耀岭河群 火山岩 相 |
THE METAVOLCANIC SEQUENCE OF YAOLINGHE GROUP IN NORTHERN PART OF NW HUBEI PROVINCE |
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| Liu Bo.THE METAVOLCANIC SEQUENCE OF YAOLINGHE GROUP IN NORTHERN PART OF NW HUBEI PROVINCE[J].Resources Environment & Engineering,1993(2). |
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| Authors: | Liu Bo |
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| Affiliation: | Liu Bo (Tianjin Institute of Geology and Mineral Resources)Zhang Zhicai (Geological Survey of NW Hubei Province) |
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| Abstract: | The volcanic rocks of the Upper Proterozoic Yaolinghe Group can be divided into lava facies and pyroclastic facies. The lava facies is dominated by basaltic lava, with minor acid lava near the vent. The pyroclastic facies is composed of pyroclastic surge deposits, pyro-clastic flow deposits and pyroclastic free-falling deposits. There are agglomerates and block brecias in the lower part of the pyroclastic sequence near the vent. |
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| Keywords: | Yaolinghe Group Volcanic rocks Facies |
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