| 长江三峡仙女山断层带微构造及变形环境探讨 |
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| 引用本文： | 吴树仁.长江三峡仙女山断层带微构造及变形环境探讨[J].地质科学,1994,29(3):220-227. |
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| 作者姓名： | 吴树仁 |
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| 作者单位： | 中国地质大学矿产系 武汉 430074 |
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| 摘 要： | 在宏观变形分析的基础上,重点论述仙女山断层带的微观变形特征。估算了断层带发育过程中两个主要变形阶段的温度、应力和应变速率,探讨了微观变形机制和变形环境。
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| 关 键 词： | 显微构造 糜棱岩 碎裂岩 应变速率 仙女山断层带 |
| 收稿时间： | 1992-09-21 |
| 修稿时间： | 1992-09-21; |
STUDY ON THE MICROSTRUCTURES AND DEFORMATIONAL ENVIRONMENT OF XIANNUSHAN FAULT BELT, EAST OF YANGTZE RIVER GORGES |
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| Wu Shuren.STUDY ON THE MICROSTRUCTURES AND DEFORMATIONAL ENVIRONMENT OF XIANNUSHAN FAULT BELT, EAST OF YANGTZE RIVER GORGES[J].Chinese Journal of Geology,1994,29(3):220-227. |
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| Authors: | Wu Shuren |
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| Institution: | China University of Geosciences, Wuhan 430074 |
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| Abstract: | The paper dealt with deformed calcite veins,structural stylolites, dislocated structures of deformed calcite as well as microstructures of mylonite and cataclasite in Xiannushan Fault Belt. Based on the analysis of microstructures the study revealed moving direction of the belt during Yanshan and Himalayan Movements. Deformation temperature and depth, differential stress, strain and strain rate were, too, estimated.The micromechanisms of the fault belt were believed mainly as: (1) brittle fracturing,cataclastic flow and frictional sliding; (2) intracrystalline shearing and sliding and (3) tectonic pressure solution. Towards the cud of the paper tectonic deformational environment of Xiannushan Fault Belt was discussed. |
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| Keywords: | microstructure mylonite cataclasite strain rate |
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