| 安徽柯村A型花岗岩岩墙群地质地球化学特征及构造环境 |
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| 引用本文： | 钟华明.安徽柯村A型花岗岩岩墙群地质地球化学特征及构造环境[J].安徽地质,1997(2). |
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| 作者姓名： | 钟华明 |
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| 作者单位： | 安徽省区域地质调查所 |
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| 摘 要： | 柯村岩墙群岩石具文象结构，地球化学上具富硅、富碱、富Ｇａ、Ｚｒ、Ｎｂ、Ｆ，低铝、贫水和Ｂａ、Ｓｒ特征。在多种判别图上，均投影在Ａ型花岗岩区。根据岩石地球化学特征和产出构造环境分析，柯村岩墙群属非造山区裂图１柯村碱性花岗岩岩墙群地质略图Ｆｉｇ．１Ｔｈｅａｌｋａｌｉｎｅｇｒａｎｉｔｅｄｙｋｅｃｌｕｓｔｅｒ，Ｋｅｃｕｎ．谷Ａ型花岗岩。
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| 关 键 词： | A型花岗岩 地球化学 构造环境 柯村 |
THE BAIMAJIAN SUPER-UNIT ASSOCIATION CHARACTERISTICS AND ITS GENETIC MECHANISM |
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| Guan Yuncai Wu Haiquan.THE BAIMAJIAN SUPER-UNIT ASSOCIATION CHARACTERISTICS AND ITS GENETIC MECHANISM[J].Geology of Anhui,1997(2). |
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| Authors: | Guan Yuncai Wu Haiquan |
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| Abstract: | Based on mapping in detail,the Baimajian composite complex is disintegrated into 91 intrusions,belonging to 6 units of 3 superunits.They were all derived from the crust-mantle mixed magma as a result of the Yanshanian Movement.The rock evolution is from granodiorite to monzogranite to K-granite,corresponding to magmatic activities from weak to intense to weak,rising upward in episodes with a tendency of northeastward migration.The Baimajian super-unit association was defined by double factors of regional tectonic activity and magmatic evolution itself. |
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| Keywords: | Baimajian super-unit association granite origin emplacement mechanism |
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