| 山东五莲七宝山破火山口的研究 |
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| 作者姓名： | 潘永伟 |
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| 作者单位： | 同济大学 |
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| 摘 要： | 本文首次研究了七宝山破火山口,对破火山口特征作了全面论述,尤其是发现破火山口产有两套火山——侵入杂岩,粗安质火山侵入杂岩和英安流纹质火山侵入杂岩,前者为慢源岩浆经破火山口中心式喷发形成,后者为陆壳同熔岩浆在破火山口演化晚期经火山复活作用产生。
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| 关 键 词： | 山东省五莲 破火山口 |
THE STUDY OF QIBAO SHAN CALDERA IN WULIAN SHANON PROVINCE |
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| Authors: | Pan Yongwei Tongji University |
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| Institution: | Pan Yongwei Tongji University |
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| Abstract: | This paper first deals with the Qibao Shan caldera and its characteristics in ev- ery aspects. The associated volcanic intrusive rocke can be divided into two groups of complex: One is trachytic complex which erupted in before the caldera and Intruded ofter the collapse of the caldera. The other is rhyodacitic complex-the magma which wuld be produced by remelting the lower part of the earth cyust, and erupted and intruded with volcanic resurgence of the caldera in the south-east part. |
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| Keywords: | Wulian Shandon province caldera |
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