| 康滇地轴中段西缘二叠纪火山岩岩石地球化学特征 |
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| 引用本文： | 陈玉禄,侯浩,杨更.康滇地轴中段西缘二叠纪火山岩岩石地球化学特征[J].四川地质学报,1999(1). |
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| 作者姓名： | 陈玉禄 侯浩 杨更 |
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| 作者单位： | 四川地勘局区调队 |
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| 摘 要： | 沿扬子地台西缘与松潘甘孜造山带东缘结合部中段两侧分布的二叠纪火山岩，分别代表攀西裂谷时期海相和陆相环境中的火山喷发产物。西部为海相高钾钙碱性—碱性拉斑玄武岩系列，东部为陆相低钾钙碱性拉斑玄武岩系列；两者的来源深度不一，前者较后者相对较深。
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| 关 键 词： | 峨眉山玄武岩 大石包组 海相 陆相 攀西裂谷 |
LITHOGEOCHEMICAL FEATURES OF THE PERMIAN VOLCANIC ROCKS ON THE WESTERN MARGIN OF THE CENTRAL KANGDIAN AXIS |
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| Chen Yulu,Hou Hao and Yang Geng.LITHOGEOCHEMICAL FEATURES OF THE PERMIAN VOLCANIC ROCKS ON THE WESTERN MARGIN OF THE CENTRAL KANGDIAN AXIS[J].Acta Geologica Sichuan,1999(1). |
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| Authors: | Chen Yulu Hou Hao and Yang Geng |
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| Abstract: | Permian volcanic rocks on the werstern margin of the central Kangdian axis close to the eastern margin of the Songpan Garze orogenic zone represent products of marine and continental volcanic activity in the Panxi rifting epoch The volcanic rock in west is marine K rich calc alkaline alkaline tholeiite series,while the vocanic rock in east is continental K low calc alkaline tholeiite series Magmatic source of the former is deeper than that of the latter |
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| Keywords: | Emeishan basalt Dashibao Formation marine facies continental facies Panxi rift |
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