| 桂东南南渡－莲塘花岗岩体的构造及侵位机制 |
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| 引用本文： | 梁金城,冯佐海.桂东南南渡－莲塘花岗岩体的构造及侵位机制[J].桂林工学院学报,1994(3). |
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| 作者姓名： | 梁金城 冯佐海 |
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| 作者单位： | 桂林工学院 |
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| 摘 要： | 南渡—莲塘岩体属多期侵位的花岗岩类深成岩体，可分解为２个序列７个单元．侵位空间受控于左行走滑剪切带的拉张区，岩体中保留有岩浆液态流动构造和丰富的侵位塑变构造，具有以主动侵位为主，被动侵位为辅的双重特征．各种构造型式表明：岩浆的演化和侵位与博白—岑溪断裂带多期走滑有关，可厘定为一种新的剪切脉动侵位机制．
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| 关 键 词： | 花岗岩，侵位机制，剪切带，岩组分析，应变分析，广西 |
THE STRUCTURES AND EMPLACEMENT MECHANISM OF NANDU-LIANTANG PLUTON,SOUTHEAST GUANGXI |
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| Liang Jingcheng,Feng Zuohai.THE STRUCTURES AND EMPLACEMENT MECHANISM OF NANDU-LIANTANG PLUTON,SOUTHEAST GUANGXI[J].Journal of Guilin University of Technology,1994(3). |
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| Authors: | Liang Jingcheng Feng Zuohai |
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| Affiliation: | Guilin Institute of Technology |
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| Abstract: | Nandu-Liantang pluton is a multiphase intrusive granitic pluton which can be identified into two series and seven units. The emplacement space is controlled by the extensional jogs of the sinistral strike-slip shear zones, and within the pluton there are original magmatic flow structures and abundant intrusive plastic deformation structures, indicating a double- character of the dominant forceful intrusion and the auxiliary passive intrusion.Various structural patterns show that the magma evolution and intrusion are closely related to the multiphase strike-slip shear zones of the Bobai-Cenxi fracture zone, and mostly for this reason,it can be identified as a shearing-pulse emplacement mechanism. |
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| Keywords: | granite emplacement mechanism shear zones fabric analysis strain analysis Guangxi |
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