| 雅鲁藏布江蛇绿岩山幔型韧性剪切带的发现及其意义 |
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| 引用本文： | 李德威.雅鲁藏布江蛇绿岩山幔型韧性剪切带的发现及其意义[J].地球科学,1994,19(4):455-460,T001. |
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| 作者姓名： | 李德威 |
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| 作者单位： | 中国地质大学地质系 武汉430074 |
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| 摘 要： | 本文论述了在雅鲁藏布江蛇绿岩中发现的大型幔型韧性剪切带的几何学和运动学特征，通过研究超镁铁质糜棱岩中变形橄榄石的显微构造，分析了上地的流变状态，探讨了幔型韧性剪切带生成的构造环境和阿尔卑斯型铬铁矿的地幔剪切动力成因机制。
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| 关 键 词： | 蛇绿岩 剪切带 雅鲁藏布江 韧性 |
Discovery of mantle Ductile Shear Zone in Ophiolite along Yarlungzangbo River, Tibet and Its Significance |
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| Li Dewei.Discovery of mantle Ductile Shear Zone in Ophiolite along Yarlungzangbo River, Tibet and Its Significance[J].Earth Science-Journal of China University of Geosciences,1994,19(4):455-460,T001. |
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| Authors: | Li Dewei |
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| Abstract: | The geometrie and kinetic features of the large mantle ductile shear zone along Yarlung-zangbo River are discussed. Based on the study of microstructures of deformed olivines in ultramafic mylonites, the rheomorphic state of upper mantle is analysed. Finally, the formation environment of the mantle ductile shear zone and mantle shear dynamic minerogenesis of Alpine-type chromites are discussed . |
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| Keywords: | mantle ductile shear zone structural feature formation environment Yarlung-zangbo river |
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