| 内蒙古乌兰浩特地区早白垩世韧性变形对嫩江-八里罕断裂的响应 |
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| 引用本文： | 王东星,贺宏云,赵磊,顾新雨,张海平,郝瑞春.内蒙古乌兰浩特地区早白垩世韧性变形对嫩江-八里罕断裂的响应[J].地质通报,2018,37(9):1704-1709. |
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| 作者姓名： | 王东星 贺宏云 赵磊 顾新雨 张海平 郝瑞春 |
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| 作者单位： | 内蒙古自治区地质调查院 |
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| 基金项目： | 中国地质调查局项目《大兴安岭成矿带突泉—翁牛特地区地质矿产调查》（编号：DD20160048）、《内蒙古1∶5万沙巴尔吐（L51E008009）、巴达尔湖公社（L51E008010）、两家子（L51E009009）、团发屯六村（L51E009010）、前联合屯（L51E010009）、白音浩特（L51E010010）幅区域地质调查》（编号：DD20160048-09） |
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| 摘 要： | 为了探讨嫩江-八里罕断裂带对研究区的影响,对乌兰浩特地区出露的韧性变形带进行野外构造要素测量、对比,初步提出研究区曾经历左旋走滑变形阶段。通过对该韧性剪切带韧性变形特征的研究,明确了剪切带变形程度为初糜棱岩-糜棱岩。结合前人研究成果及相关年代学资料,确定走滑时间为早白垩世中期(139~113Ma),这对进一步明确嫩江-八里罕断裂的展布位置、断裂带的宏观特征及形成时间的讨论具有重要意义。
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| 关 键 词： | 嫩江-八里罕断裂带 韧性剪切带 早白垩世 左行走滑 |
| 收稿时间： | 2018/3/20 0:00:00 |
| 修稿时间： | 2018/7/26 0:00:00 |
The response of Early Cretaceous ductile deformation to the Nen-jiang-Balihan fault in Ulanhot area, Inner Mongolia |
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| WANG Dongxing,HE Hongyun,ZHAO Lei,GU Xinyu,ZHANG Haiping and HAO Ruichun.The response of Early Cretaceous ductile deformation to the Nen-jiang-Balihan fault in Ulanhot area, Inner Mongolia[J].Geologcal Bulletin OF China,2018,37(9):1704-1709. |
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| Authors: | WANG Dongxing HE Hongyun ZHAO Lei GU Xinyu ZHANG Haiping and HAO Ruichun |
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| Institution: | Geological Survey Institute of Inner Mongolia, Hohhot 010020, Inner Mongolia, China,Geological Survey Institute of Inner Mongolia, Hohhot 010020, Inner Mongolia, China,Geological Survey Institute of Inner Mongolia, Hohhot 010020, Inner Mongolia, China,Geological Survey Institute of Inner Mongolia, Hohhot 010020, Inner Mongolia, China,Geological Survey Institute of Inner Mongolia, Hohhot 010020, Inner Mongolia, China and Geological Survey Institute of Inner Mongolia, Hohhot 010020, Inner Mongolia, China |
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| Abstract: | In order to explore the influence of the Nenjiang-Balihan fault zone in the study area, the authors made field structure ele-ments measurement and comparative study of Ulanhot regional ductile deformation zone and, on such a basis, put forward the argu-ment that the study area is at the sinistral strike-slip deformation stage. Through the study of the toughness deformation characteris-tics of the ductile shear belt, the deformation stage of shear band is defined as the initial mylonite and mylonite. Based on previous re-searches and related chronologic data, the authors hold that the slip time was Early Cretaceous (139~113 Ma). It is of great signifi-cance to further clarify the macroscopic characteristics of the fracture zone and the formation time. |
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| Keywords: | Nenjiang-Balihan fault ductile shear zone Early Cretaceous sinistral strike-slip |
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