| 福鼎山后尖玄武岩筒地质特征及其形成机制探讨 |
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| 引用本文： | 戴清忠,陈荣魁.福鼎山后尖玄武岩筒地质特征及其形成机制探讨[J].福建地质,2008,27(4):369-376. |
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| 作者姓名： | 戴清忠 陈荣魁 |
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| 作者单位： | 福建省第四地质大队,宁德,352100 |
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| 摘 要： | 福鼎山后尖玄武岩位于福鼎一福清北东向断裂带北东段，呈岩筒状产于石帽山群下组下段火山沉积岩中，属钠质碱性玄武岩系列，由玄武质火山角砾岩、碧玄岩、橄榄辉长一玄武岩组合，经历火山爆发、喷溢、次火山侵入3个阶段而形成。
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| 关 键 词： | 岩石特征 形成机制 玄武岩筒 福鼎山后尖 |
On the Geologic Characteristics and Formation Mechanisms of the Basalt Pillars in Shanhoujian, Fuding City |
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| Dai Qingzhong,Chen Rongkui.On the Geologic Characteristics and Formation Mechanisms of the Basalt Pillars in Shanhoujian, Fuding City[J].Geology of Fujian,2008,27(4):369-376. |
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| Authors: | Dai Qingzhong Chen Rongkui |
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| Institution: | Dai Qingzhong Chen Rongkui (No. 4 Geological Party of Fujian Province, Ninde, 352100) |
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| Abstract: | The basalt in Shanhoujian, Fuding City is situated at the north-east segment of the Fuding-Fuqing fault belt with the northeastern trend, exists in a volcanic pipe and is discovered in the volcanic-sedimentary rock of Lower Cretaceous Shimaoshan Group Lower Formation. It belongs to the sodium alkali-basalt series and is made up of basalt volcanic breccia, basanite and ankaramite. It gets into shape undergoing the three stages of volcanic eruption, effusion and subvolcanic invasion. |
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| Keywords: | lithologic characteristics mechanisms of formation basalt pillar Fuding City |
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