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分布在五台山区的早前寒武纪五台群和滹沱群,遭受了多期变形和变质,小型构造发育。层理配置反映变形性质和程度;片理(劈理)为早世代挤压-剪切褶皱的轴面片理,又成为晚世代弯滑褶皱的滑动面;线理(压扁拉长的砾石、杏仁体和矿物集合体)垂直于早世代褶皱枢纽,为a线理;这一运动学特征在显微组构中亦有反映。本区发现了“折射变位”、“非共面反射变位”和“共面反射变位”等褶皱枢纽变位轨迹。上述构造形迹可为运动学分析提供依据,可对造山带的重要性质获得广泛的理解。
Wutai Group and Hutuo Group distributed in the Wutai Mountain area suffered multi-stage deformation and metamorphism and small structure development. The bedding arrangement reflects the nature and extent of deformation; the wadding (cleavage) is the axial surfacing of the earlier generation of compression-shear folds and the sliding surface of the later generations of bend-slip folds; the lineage (the squashed elongated gravel , Almonds and mineral assemblages) perpendicular to the fold fold in the early generation as a-ray; this kinematic character is also reflected in the microstructure. In this area, the displacement trajectories of fold hinge such as “refraction displacement”, “non-coplanar reflection displacement” and “coplanar reflection displacement” were found. These structural features provide the basis for kinematic analysis and provide a broad understanding of the important properties of orogenic belts.