| 张八岭地区变质地层序列与构造型式 |
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| 引用本文： | 侯明金,吴跃东,汤加富.张八岭地区变质地层序列与构造型式[J].安徽地质,1999(1). |
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| 作者姓名： | 侯明金 吴跃东 汤加富 |
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| 作者单位： | 安徽地质调查院!合肥２３０００１ |
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| 摘 要： | 运用构造与地层相结合的理论和方法，通过对张八岭地区已完成和正在进行的１０幅１：５万地质填图资料分析和典型地区的构造追踪，初步认为：北将军（岩）组自下而上分为三段，时代置于中元古代，获铅同位素年龄样值为１８２１±４１６Ｍａ；西冷（岩）组自下而上分为三段，时代置于青白口纪。区内主要存在三期构造交形：早期为一系列呈ＮＷＷ－近ＥＷ向的紧闭同斜褶皱，中期以韧性剪切带发育为特征，晚期以ＮＮＥ向为主的宽缓褶皱。三期变形共同叠加，形成区内基本构造格架。并对变形机制作初步探讨。
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| 关 键 词： | 变质地层 序列 构造型式 张八岭地区 |
THE METAMORPHOSED STRATIGRAPHIC SUCCESSION AND STRUCTURAL PATTERNS OF THE ZHANGBALING AREA |
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| Hou Mingjin , Wu Yuedong , Tang Jiafu.THE METAMORPHOSED STRATIGRAPHIC SUCCESSION AND STRUCTURAL PATTERNS OF THE ZHANGBALING AREA[J].Geology of Anhui,1999(1). |
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| Authors: | Hou Mingjin Wu Yuedong Tang Jiafu |
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| Abstract: | Based on ten sheets of finished and unfinished 1: 50000 scale pelogical mapping in the Zhangbaling area, the tracing of typicalstructures and the use in combination of structural and stratigraphical theory and method, the Beijiangjun lithologic association can be di-vided into three members in the middle Proterozoic with Pb - Pb isotopic age of 1821 + 416 Ma, the Xileng lithologic association also intothree members in the Qingbaikou period, and three stages of structural deformation can be delimited: a series of NWW - and nearly EW -trending tight congruous folds for the early one. characteristic development of ductile shear zone for the middle and the majorly NNE -trending wide - flat folds for the late. The superimposement of the three stages of deformation formed the basic tectonic framework of the |
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| Keywords: | metamorphosed strata succession structural pattem |
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