| 江西大背坞地区韧性剪切带中岩石变形与矿物变化的关系 |
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| 引用本文： | 陈柏林 董法先. 江西大背坞地区韧性剪切带中岩石变形与矿物变化的关系[J]. 矿物岩石, 1999, 19(1): 29-32 |
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| 作者姓名： | 陈柏林 董法先 |
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| 作者单位： | 地质矿产部地质力学研究所 |
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| 摘 要： | 浅变质碎屑岩中韧性剪切变形往往引起进变质作用，并导致矿物变化，其主要表同为同构造变斑晶，绢云母重结晶和形成动力分异条带，从剪切带外侧到剪切带中心，同构造变斑晶由小变大，重结晶须云母含量逐渐增高，动力分异条带仅发育于剪切带中心强变形区，在一定变形范围内，重结晶绢云母含量与应变强度呈线性正相关。
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| 关 键 词： | 岩石变形 矿物变化 韧性剪切带 大背坞地区 |
THE RELATIONSHIP BETWEEN ROCK DEFORMATION AND MINERAL CHANGES IN DUCTILE SHEAR ZONE, DABEIWU,JIANGXI |
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| Chen Bailin Dong Faxian. THE RELATIONSHIP BETWEEN ROCK DEFORMATION AND MINERAL CHANGES IN DUCTILE SHEAR ZONE, DABEIWU,JIANGXI[J]. Journal of Mineralogy and Petrology, 1999, 19(1): 29-32 |
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| Authors: | Chen Bailin Dong Faxian |
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| Abstract: | The ductile shear deformation of rocks may bring about mineral changes in the epimetamorphic detrital rocks,which is characterized by the occurrence of syn tectonic porphyroclasts,recrystallization of sericite and dynamicaly differentiated band.From the margin to the center of the ductile shear zone,the porphyroclast changes from small one to large one and the sericite increases gradually.The dynamicaly differentiated band only develops in the center of the zone.The contents of recrystallized sericite have a linear correlation with the strain intensity within the scope of certain deformation of the rocks. |
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| Keywords: | rock deformation mineral change ductile shear zone Dabeiwu |
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