| 大山片麻岩地质特征及侵位机制研究 |
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| 引用本文： | 吕鹏,曲永贵.大山片麻岩地质特征及侵位机制研究[J].吉林地质,1999,18(1):32-38. |
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| 作者姓名： | 吕鹏 曲永贵 |
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| 作者单位： | 吉林地勘局第三地质调查所 |
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| 摘 要： | 大山片麻岩的原财为奥长化岗石，呈不规则状侵入柳树河子片麻岩中，年龄２７亿年左右，太古代阜平运动晚期侵位的。侵位与当时区域上大规模的韧性剪切作用密切相关。由于剪切带各相关位置的位移量的差异，形成空间，给岩浆被动就位了有利场所，形成大山片麻岩古深成岩体。
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| 关 键 词： | 大山片麻岩 位移量 片麻岩 地质特征 侵位机制 |
A study on the geologic features of Dashan gneiss and emplacement mechanism |
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| L Peng,QU Yonggui,HUI Yanmei.A study on the geologic features of Dashan gneiss and emplacement mechanism[J].Jilin Geology,1999,18(1):32-38. |
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| Authors: | L Peng QU Yonggui HUI Yanmei |
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| Abstract: | The primitive rock of the Dashan gneiss is trondhjemite, that intruded into the Liushuhezi gneiss showing irregular-shape, in the Archeozoic, late-stage of Fuping movement, the age is about 2 700Ma. The emplacement is closely related with the regional and large ductile shearing; as a result of the difference of displacement component of shear zones, the favorable place for magmatic passive emplacement is provided, and formed the paleoplutonic rock of Dashan gneiss. |
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| Keywords: | volcanic gneiss displacement component passive emplacement |
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