| 羊屎沟铁岭组大理岩鞘褶皱的变形特征分析 |
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| 引用本文： | 张逸鹏,高雪,张祥恒.羊屎沟铁岭组大理岩鞘褶皱的变形特征分析[J].华北地震科学,2012(3):51-53. |
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| 作者姓名： | 张逸鹏 高雪 张祥恒 |
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| 作者单位： | 中国地质大学（北京）地球科学与资源学院,北京100083 |
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| 摘 要： | 在羊屎沟铁岭组大理岩上发现鞘褶皱垂直于最大主应变轴X轴和垂直于中间应变主轴Y轴的切面,并对其变形特征及形成机制进行了考察和分析,认为,鞘褶皱所反映的韧性剪切作用方向大致为SSE方向150°～160°,且晚于铁岭组大理岩的形成时间。
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| 关 键 词： | 房山岩体 鞘褶皱 叠加变形 递进剪切作用 褶轴弯曲 韧性剪切带 |
Analysis on the Tieling Formation Characteristics of Marble Sheath Folds at Yangshigou |
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| ZHANG Yi-peng,GAO Xue,ZHANG Xiang-heng.Analysis on the Tieling Formation Characteristics of Marble Sheath Folds at Yangshigou[J].North China Earthquake Sciences,2012(3):51-53. |
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| Authors: | ZHANG Yi-peng GAO Xue ZHANG Xiang-heng |
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| Institution: | (School of Earth and Resources,China University of Geosciences,Beijing 100083,China) |
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| Abstract: | In the marble of Tieling formation at Yangshigou,the sheath folds that are perpendicular to the maximum principal strain axis X and perpendicular to the intermediate strain axis Y are found and the deformation characteristics and mechanics are analyzed in the paper.The results show that sheath folds reflect the ductile shearing direction generally in SSE direction 150°-160°,and formed later than formation time of the marble of Tieling formation. |
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| Keywords: | Fangshan rock mass sheath fold superimposed deformation progressive shearing fold bend ductile shear zone |
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