| 辽北太古宙花岗质岩石的双重演化系列及成因机制 |
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| 引用本文： | 吴福元,林强.辽北太古宙花岗质岩石的双重演化系列及成因机制[J].岩石学报,1992,8(3):257-267. |
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| 作者姓名： | 吴福元 林强 |
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| 作者单位： | 长春地质学院地质系，长春地质学院地质系 长春 130026，长春 130026 |
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| 基金项目： | 国家教委博士点专项基金 |
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| 摘 要： |
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| 关 键 词： | 太古宙 花岗质 岩石 演化 成因机制 |
THE DUAL-EVOLUTIONARY SERIES OF ARCHAEAN GRANITOIDS AND THEIR, FORMATION IN NORTHERN LIAONING PROVINCE |
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| Wu Fuyuan Lin Qiang.THE DUAL-EVOLUTIONARY SERIES OF ARCHAEAN GRANITOIDS AND THEIR, FORMATION IN NORTHERN LIAONING PROVINCE[J].Acta Petrologica Sinica,1992,8(3):257-267. |
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| Authors: | Wu Fuyuan Lin Qiang |
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| Abstract: | In northern Liaoning Province, there exists a great area of Archaean granitoid, which is dual-evolutionary, and represents a tonalitic-trondhjemitic(TT) trend and a calc-alkali(CA) trend. The study shows that the TT trend, as a fractional-crystallized differentiated magma series of a tonalitic magma, represents the evolutionary feature of paleo-plutonic intrusion before late Archaean metamorphism, and the CA trend, as a result of anatexism of Paleo-intrusion during the Late Archaean metamorphism, represents a magmatic system with variable amount of melts and residual materials. It can be concluded that the Archaean granitoid in this area is a composite product of TT and CA trends, and the CA trend is not primarily characteristic of Archaean granitic magmatism. |
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| Keywords: | Dual-evolutionary Archaean granitoids Tonalitic-trondhjemitic trend Calc-alkali trend Liaoning |
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