| 辽宁阜新两类变质地区的构造关系 |
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| 引用本文： | 刘建忠,刘喜山,李树勋,刘俊来,欧阳自远.辽宁阜新两类变质地区的构造关系[J].地球与环境,2000,28(2):61-66. |
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| 作者姓名： | 刘建忠 刘喜山 李树勋 刘俊来 欧阳自远 |
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| 作者单位： | 1. 中国科学院地球化学研究所,贵阳,550002
2. 长春科技大学地球科学学院,长春,130026 |
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| 基金项目： | 中国科学院资源与生态环境研究项目,中国科学院资助项目,KZ952-J1-413,49573194,, |
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| 摘 要： | 根据太古宙地壳在后寒武纪被改造的特点,可以将研究区──阜新地区划分为西部稳定区和东部线性杂岩带。而西部稳定区又可依据变质作用强度进一步划分为西部麻粒岩相区和东部用闪岩相区。本文通过西部麻粒岩相区和东部角闪岩相区岩石组合特征、变质作用演化的动力学以及发育于其中的韧性剪切带运动学、动力学和地球物理学特征的对比研究,确定麻粒岩相区为历闪岩相区的根部带,后期构造运动的右行拉伸作用,使上部的角闪岩相区与下部的麻粒岩相区发生分离,而后一起抬升剥蚀,从而处于平行位置。
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| 关 键 词： | 构造关系 变质地区 辽宁阜新 |
TECTONIC RELATIONSHIP BETWEEN TWO KINDS OF STRUCTURE REGIONS |
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| Liu Jianzhong,Liu Xishan,Li Shuxun,Liu Junlai,Ouyang Ziyuan.TECTONIC RELATIONSHIP BETWEEN TWO KINDS OF STRUCTURE REGIONS[J].Earth and Environment,2000,28(2):61-66. |
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| Authors: | Liu Jianzhong Liu Xishan Li Shuxun Liu Junlai Ouyang Ziyuan |
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| Abstract: | Based on characteristics of the Archaean metamorphic crust reworked during the post Cambrian, thestudy area can be divided into two big tectonic-lithological units: Western Stable Complex Area (WSCA)and Eastern Linear Complex Belt (ELCB). According to the intensity of metamorphism, the WSCA can befurther divided into two sections: Western Granulite Facies Area (WGFA) and Eastem Amphibolite FaciesArea (EAFA). It is confirmed that WGFA is the root zone of EAFA in terms of rock assemblage, the evolution of metamorphism and dynamics and kinematics of ductile shearing zones. Right-lateral extendingmade EAFA separate from WGFA, followed by their uplift and erosion together. So WGFA is parallel toEAFA. |
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| Keywords: | tectonic relationship metamorphic region Fuxin area Liaoning Province |
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