Structural analysis and deformation characteristics of the Yingba metamorphic core complex, northwestern margin of the North China craton, NE Asia

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• 作者：Congyuan Yin ; Bo Zhang ; ^{geozhangbo@pku.edu.cn} ; Bao-Fu Han ; Jinjiang Zhang ; Yang Wang ; Sheng Ai
• 关键词：North China craton ; Metamorphic core complex ; Microstructures ; Two-feldspar geothermometry ; Quartz fabrics ; Vorticity
• 刊名：Journal of Structural Geology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：94
• 期：Complete
• 页码：195-212
• 全文大小：11497 K
• 卷排序：94

文摘

Define the Yingba metamorphic core complex systematically. Three types of deformation are recognized in the evolution of Yingba MCC. Temperatures estimates demonstrate an intermediate to high temperature (400–650 °C) shear zone. Vorticity calculation indicates a pure shear-dominated (48–62%) general shear in the middle crust. Yingba MCC is caused by the extension after previous thickening, and is a part of the large extensional region in NE Asia.