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| Keywords | |
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North China craton |
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Neoarchean |
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granitic rock |
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granite genesis |
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western Liaoning |
| Authors | |
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WANG Qing-Long |
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JIN Wei |
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CAI Li-Bin |
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CUI Xia-Hong |
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ZHANG Qiao |
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WU Chao-Sheng |
| PubMed | |
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Article by Wang, Q. L. |
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Article by Jin, W. |
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Article by Cai, L. B. |
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Article by Cui, X. H. |
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Article by Zhang, Q. |
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Article by Wu, C. S. |
Characteristics and genesis of Neoarchean granitic complex in Xingcheng of western Liaoning
WANG Qing-Long, JIN Wei, CAI Li-Bin, CUI Xia-Hong, ZHANG Qiao, WU Chao-Sheng
College of Earth Sciences��Jilin University��Changchun 130061��China
Neoarchean granitic complex in Taili area of Xingcheng in western Liaoning��was an important part of Neoarchean granitic crust in North China craton��and divided into two types: the biotite-feldspar gneiss and granodioritic gneiss�� All granodioritic gneiss was“fuzzy”in gradual transition without general characteristic of intrusive body�� Granodioritic gneiss and biotite-feldspar gneiss mixed with eath other��indicating coordinated deformation or transitional relationship�� Micro fabric research showed that the two types of gneiss can be divided into two different types of structural phase for each: native structure phase and neonatal structure phase�� The content of neonatal structure phase was increasing and the native structure phase was decreasing gradually from biotite-feldspar gneiss to granodioritic gneiss�� In major elements��the two types of gneiss had linear distribution trend in SiO2 with MnO�� CaO��TiO2 ��Fe2O3 and MgO with similar characteristics in trace and rare earth elements�� The granodioritic gneiss belongs to anatectic granite in genesis��and their source rocks might be a metamorphosed greywacke��