| 滇西北石鼓片岩变质变形特征及其划分 |
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| 引用本文： | 李昆琼.滇西北石鼓片岩变质变形特征及其划分[J].云南地质,2003,22(3):329-335. |
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| 作者姓名： | 李昆琼 |
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| 作者单位： | 云南省地质矿产勘查开发局,区域地质矿产调查大队,云南,玉溪,653100 |
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| 基金项目： | 中国地质调查局,1∶2 5万贡山县、中甸县幅区域地质调查项目 |
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| 摘 要： | 滇西北金沙江结合带东侧的石鼓变质岩系，可划分为石鼓岩群和巨甸岩群。石鼓岩群受区域动力热流变质作用改造，主期变形环境为中、深部构造相；巨甸岩群受区域低温动力变质作用改造，与之相伴的构造形迹属中、浅部构造相。石鼓岩群包含羊坡岩组和露西岩组，巨甸岩群可进一步划分为陇巴岩组和塔城岩组。同一岩群的岩组，变质作用、构造变形特征相同，但变质岩石组合及原岩特征却有明显差别。
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| 关 键 词： | 滇西北地区 变形特征 石鼓变质岩系 石鼓岩群 巨甸岩群 动力热流 变质作用 |
| 文章编号： | 1004-1885(2003)03-329-7 |
| 修稿时间： | 2003年4月22日 |
THE METAMORPHISM, DEFORMATION AND STRATIGRAPHIC DIVISION OF SHIGU SCHIST IN NORTHWEST YUNNAN |
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| LI Kun-qiong.THE METAMORPHISM, DEFORMATION AND STRATIGRAPHIC DIVISION OF SHIGU SCHIST IN NORTHWEST YUNNAN[J].Yunnan Geology,2003,22(3):329-335. |
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| Authors: | LI Kun-qiong |
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| Abstract: | On the east side of Jinshajiang conjunction zone in NW Yunnan,the shigu metamorphic rock Series can be divided into Shigu rock group and Judian rock group.The Shigu rock group is reformed by the regional dynamic thermal metamorphism with the main deformation environment of medium-deep structural facies.The Judian rock group is reformed by the regional low T dynamic metamorphism with the medium-shallow structural facies.The Shigu rock group includes Yangpo rock formation and Luxi rock formation.The Judian rock group can be divided into Longba rock formation and Tacheng rock formation.The metamorphism and deformation characteristics of rock formations in the same rock group are all the same,but the metamorphic rock assemblage and original rock characteristics are very different each other. |
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| Keywords: | Deformation Characteristics Further Division Shigu Metamorphic Rock Series NW Yunnan Area |
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