| 论龙门山彭灌杂岩体的构造属性 |
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| 引用本文： | 林茂炳,马永旺.论龙门山彭灌杂岩体的构造属性[J].成都理工大学学报(自然科学版),1995(1). |
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| 作者姓名： | 林茂炳 马永旺 |
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| 作者单位： | 成都理工学院地质学系 |
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| 摘 要： | 位于龙门山中段的彭灌杂岩是一个巨大的岩性复杂的地质体，形成于前寒武纪时期。剖面研究和１：５万区域地质填图表明，它是处于龙门山中段推覆构造带中的一个构造变形十分强烈的构造片体，是推覆过程中经受了强烈改造的一个古老杂岩体的外来岩块。其接触关系和侵位方式均属构造成因，仅在片体内部局部保留原始热侵位特征。杂岩体内部的变形特征均属印支—喜马拉雅期的构造形迹。
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| 关 键 词： | 彭灌杂岩，构造侵位，构造片体，韧性剪切带 |
A DISCUSSION ON THE TECTONIC CHARACTERISTICS OF PENG-GUAN COMPLEX IN LONGMEN MOUNTAINS |
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| Lin Maobing, Ma Yongwang.A DISCUSSION ON THE TECTONIC CHARACTERISTICS OF PENG-GUAN COMPLEX IN LONGMEN MOUNTAINS[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1995(1). |
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| Authors: | Lin Maobing Ma Yongwang |
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| Institution: | Lin Maobing; Ma Yongwang |
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| Abstract: | Peng-Guan Complex located in the middle section of Longmen Mountains is a huge and complicated geologic body in competitions. It formed in Precambrian. The researches on the profile and the geological mapping show that it is a tectonic slice with very strong deformation in the Longmen Mountain nappe belt, and that it is an exotic block deformed by the Strong tectonic Strain during the nappins from an ancient complex. The contact relation and replacement manner are tectonic origin. The hot replacement related can be recognized only within the tectonic slices. The deformational features within this complex are formed in the Indo-China-Himalayan orosenic period. |
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| Keywords: | Peng-Guan Complex tectonic replacement tectonic slice ductile shear belt |
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