| 医巫闾山变质核杂岩构造特征 |
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| 关键词:metamorphic core complex Yiwulüshan mountains |
| 基金项目:地矿部九五重点科技项目《燕山造山带造山作用过程及动力学机制》 |
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| The Structural Feature of Metamorphic Core Complex in Yiwülshan Mountains, West Liaoning |
| Yiwulüshan mountain is proved to be a metamorphic core complex formed in Cretaceous according to field survey, microstructural analysis, and isotropic dating. The center of the metamorphic core complex is Yiwulüshan Late Yanshanian adamellite. The metamorphic core consists of Archaean metamorphic rock which represents ductile deformation in the crust deep and surrounds the Yiwulüshan adamellite. The lower part of the cover layer consists of Middle and Upper Proterozoic,spreads in the northern part and the eastern part of the metamorphic core and connects with the metamorphic core by a detachment fault. It is cut by Sunjiawan-Saohuyingzi normal fault in the west of the metamorphic core. The metamorphic core complex is considered to be symmetric type metamorphic core complex in the light of deformation schistosity, lineation, and the indication of the shear movement. |
| MA Yin-sheng,CUI Sheng-qin,WU Jin-guo,ZHU Zhen-han,ZHU Da-gang,LI Xiao,FENG Xiang-yang.1999.The Structural Feature of Metamorphic Core Complex in Yiwülshan Mountains, West Liaoning[J].Acta Geoscientica Sinica,20(4):385-391. |
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