| 福建沙县地区早白垩世火山岩成因及构造环境分析 |
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| 引用本文： | 何文兴,马金清.福建沙县地区早白垩世火山岩成因及构造环境分析[J].福建地质,1997,16(1):21-31. |
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| 作者姓名： | 何文兴 马金清 |
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| 作者单位： | 福建省区域地质调查队!三明，365001，福建省区域地质调查队!三明，365001 |
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| 摘 要： | 本文着重阐述了沙县地区早白垩世火山岩地球化学特征，论证了中性与酸性火山岩的成因及物质来源，认为二者为不同源岩浆演化的产物，其岩浆物质来源于壳幔混源区，为省内双峰式火两端员岩石间成因关系的分析研究提供了新的例征。
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| 关 键 词： | 火山岩 岩石成因 构造环境 早白垩达 |
Analysis of the Genesis and the Tectonic Setting of the Lower Cretaceous Volcanic Rocks from Shaxian Area,Fujian Province |
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| He Wenxing Ma Jinqing.Analysis of the Genesis and the Tectonic Setting of the Lower Cretaceous Volcanic Rocks from Shaxian Area,Fujian Province[J].Geology of Fujian,1997,16(1):21-31. |
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| Authors: | He Wenxing Ma Jinqing |
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| Abstract: | This paper focuses on the geochemical characteristics of the Lower Cretaceous volcanic rocks from Shaxian Area. The genesis and the magmatic source of the intermediate and the acidic volcanic rocks are discussed in detail herein. It is suggested that they are the evolutionary products of magmas from different sources, and that the magmas derived from the crustmantle mixing source region. Thus the paper provides a new example for the study of the genetic relationship between the two end--members of the bimodal volcanic rocks in Fujian Province. |
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| Keywords: | Lower Cretaceous volcanic lock geochemistry tectonic setting genesis of volcanic rocks Shaxian Counry Fujian Province |
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