| 桂北摩天岭花岗岩体中片麻状构造的成因 |
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| 引用本文： | 于凯朋,张桂林,李东辉,周守余,颜乾坤,李春雷.桂北摩天岭花岗岩体中片麻状构造的成因[J].化工矿产地质,2010,32(2):119-122,128. |
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| 作者姓名： | 于凯朋 张桂林 李东辉 周守余 颜乾坤 李春雷 |
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| 作者单位： | 桂林理工大学地球科学学院,广西桂林,541004 |
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| 摘 要： | 摩天岭花岗岩体为一大型韧性剪切带,岩体中广泛发育的片麻理实际上是糜棱面理,其总体走向为NNE向,倾向NWW-SWW,倾角30～70°,拉伸线理向SWW或NWW倾伏,根据S-C面理构造、长石和石英不对称眼球等剪切指向标志体判断,韧性剪切带运动学为正滑剪切。
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| 关 键 词： | 花岗岩 片麻状构造 韧性剪切 摩天岭 |
GENETIC OF THE GNEISSIC STRUCTURE IN MOTIANLING GRANITIC PLUTON IN NORTH GUANGXI |
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| Yu Kaipeng,Zhang Guilin,Li Donghui,Zhou Shouyu,Yan Qiankun,Li Chunlei.GENETIC OF THE GNEISSIC STRUCTURE IN MOTIANLING GRANITIC PLUTON IN NORTH GUANGXI[J].Geology of Chemical Minerals,2010,32(2):119-122,128. |
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| Authors: | Yu Kaipeng Zhang Guilin Li Donghui Zhou Shouyu Yan Qiankun Li Chunlei |
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| Institution: | Yu Kaipeng Zhang Guilin Li Donghui Zhou Shouyu Yan Qiankun Li Chunlei (College of Earth Sciences, Guilin University of Technology, Guilin, Guangxi,541004, China) |
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| Abstract: | The Motianling granitic pluton is a large scale extensional shear zone,the gneissic schistosity in the pluton actually is mylonitic foliation, which develop foliations striking to NNE and dipping to NWW-SWW at dip angle from 30°to 70°, stretching lineations plunging to SWW or NWW. Shear sense indicators, including S-C fabric, unsymmetrical feldspar and quartz phenocryst augens, indicate a ductile shearing. |
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| Keywords: | granite gneissic structure ductile shear Motianling |
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