| 福建中生代火山岩岩石化学、地球化学特征及岩石成因探讨 |
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| 引用本文： | 卢清地.福建中生代火山岩岩石化学、地球化学特征及岩石成因探讨[J].福建地质,1997(1). |
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| 作者姓名： | 卢清地 |
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| 作者单位： | 福建省区域地质调查队!三明，365001 |
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| 摘 要： | 福建燕山期具有3个阶段岩浆活动，在环太平洋火山岩带中独具特色。而中生代火．山岩岩石化学、地球化学的时空变化，亦反映出其火山活动具有3个发展阶段的特点。通过研究认为，福建中生代火山岩的形成与太平洋板块向欧亚大陆板块俯冲作用有密切相关。是处于板内靠近大陆边缘或大陆边缘靠近板内的特殊构造位置环境下的产物。可谓之“浙闽型火山岩”。
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| 关 键 词： | 中生代火山岩 岩石化学 地球化学 福建 |
On the Petrochemical and Geochemical Characteristics and the Petrogenesis of the Mesozoic Volcanic Rocks in Fujian Province |
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| Lu Qingdi.On the Petrochemical and Geochemical Characteristics and the Petrogenesis of the Mesozoic Volcanic Rocks in Fujian Province[J].Geology of Fujian,1997(1). |
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| Authors: | Lu Qingdi |
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| Abstract: | The magmatic activities in Fujian Province during the Yanshan cycle can be divided into 3 stages, which is rare among the coastal provinces of Southeast China and even in the whole country, and have unique characteristics among the volcanic rocks from the circum-Pacific volcanic belt. And the space--time variation of the Mesozoic volcanic rocks in petrochemistry and geochemistry also shows that the evolution of volcanic activities is of 3 stages. It is suggested that the forming of the Mesozoic volcanic rocks in Fujian Province is closely related to the subduction of the Pacific Plate beneath the Eurasian Plate, and that they are the products in the environment of such specific tetonic setting as intraplate near continental margin or continental margin near intraplate. It is further suggested that they can be called as"ZhejiangFujian type volcanic rock". |
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| Keywords: | Mesozoic volcanic rock petrochemistry geochemistry Fujian Province |
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