| 郯庐断裂带南段桴槎山韧性剪切带糜棱岩的变形条件和组分迁移系 |
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| 引用本文： | 刘德良,杨晓勇.郯庐断裂带南段桴槎山韧性剪切带糜棱岩的变形条件和组分迁移系[J].岩石学报,1996,12(4):573-588. |
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| 作者姓名： | 刘德良 杨晓勇 |
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| 作者单位： | 中国科学技术大学地球和空间科学系，第三世界科学院中国科学技术大学地球科学和天文学高级研究中心 |
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| 摘 要： | 本文对郯庐断裂带南段主干断裂典型的韧性剪切带进行了系统的剖析。从糜棱岩塑性变形的亚颗粒化、动态重结晶和矿物成分特征及岩石组分迁移变化等入手进行系统的研究工作，计算了岩石形成的温度、压力和流动应力和流变速率参数；模拟计算了岩石在剪切变形作用下的体积亏损及组分迁移的量值，探讨了变形－变质及流体的相关关系
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| 关 键 词： | 韧性剪切带 糜棱岩 流动应力 体积亏损 组分迁移 郯庐断裂带南段 |
The Deformational Condition and Component Migration of Mylonites in Fuchashan Ductile Shear Zones in the Southern Tanchen Lujiang Fault Belt |
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| Lui Deliang,Yang Xiaoyong,Yang Haitao and Yu Qingni.The Deformational Condition and Component Migration of Mylonites in Fuchashan Ductile Shear Zones in the Southern Tanchen Lujiang Fault Belt[J].Acta Petrologica Sinica,1996,12(4):573-588. |
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| Authors: | Lui Deliang Yang Xiaoyong Yang Haitao and Yu Qingni |
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| Abstract: | The paper focuses on the mylonites in the ductile shear zones in the southern part of Tancheng Lujiang fault zone. A number of mineral compositions in the rocks were analysed by EPMA and some typical samples by chemical and atomic absorption methods. Based on the comprehensive study on the characteristics of the plastic deformation , sub grains, dynamic recrystalization, mineral assemblages and the changes of chemical compositions of minerals and bulk rocks from the mylonites and their wall rocks,the parameters of temperature and flow stress and strain rate of the rocks were calculated. The authors have also discussed the coupling relationships between the flow stress volume loss composition changes and the relationships between the deformation and metamorphism during the mylonitization of the ductile shear zones in this region. |
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| Keywords: | Ductile shear zones Mylonites Flow stress Volume loss Composition migration Southern Tancheng Lujiang fault zone |
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