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| 新疆东天山地区塔水河韧性剪切带特征 | |
| 引用本文： | 马华东,贺卫东,涂其军,陈静,曹福根,任燕.新疆东天山地区塔水河韧性剪切带特征[J].大地构造与成矿学,2008,32(1):1-10. |
| 作者姓名： | 马华东 贺卫东 涂其军 陈静 曹福根 任燕 |
| 作者单位： | 1. 中国科学院广州地球化学研究所,广东,广州,510640;中国科学院研究生院,北京,100049 2. 新疆地矿产局第一区域地质调查大队,新疆,乌鲁木齐830011 3. 新疆地质调查院,新疆乌鲁木齐,830000 4. 新疆地质环境监测院,新疆,乌鲁木刘,830011 |
| 基金项目： | 新疆伊吾县伊吾河上游一带 1:5 万区域地质矿产调查项目 |
| 摘 要： | 通过野外宏观构造及室内显微变形构造研究,认为该剪切带广泛发育变形岩石的各种脆韧性变形组构,显微变形构造发育,形成了塔水河韧性剪切带的典型特征及丰富的剪切指向标志。韧性剪切变形强烈,至少存在两期变形,第一期为晚奥陶世末南北向的挤压产生由南向北的逆冲推覆右旋剪切,第二期变形为石炭纪花岗岩带在上侵时受到剪切力作用而产生隆升滑脱左旋走滑变形。变形时代为晚奥陶世末和晚石炭世末,两期剪切总位移量分别为2.2km和2.46km,古差异应力值为82MPa和89MPa。 |
| 关 键 词： | 韧性剪切带 两期变形 塔水河 哈尔里克山 |
| 文章编号： | 1001-1552（2008）01-0001-10 |
| 收稿时间： | 2007-05-18 |
| 修稿时间： | 2007-07-28 |
CHARACTERISTICS OF THE TASHUIHE DUCTILE SHEAR ZONE, EASTERN TIANSHAN, XINJIANG |
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| MA Huadong,HE Weidong,TU Qijun,CHEN Jing,CAO Fugen,REN Yan.CHARACTERISTICS OF THE TASHUIHE DUCTILE SHEAR ZONE, EASTERN TIANSHAN, XINJIANG[J].Geotectonica et Metallogenia,2008,32(1):1-10. | |
| Authors: | MA Huadong HE Weidong TU Qijun CHEN Jing CAO Fugen REN Yan |
| Abstract: | The Tashuihe ductile shear zone is located in southern Haerlike Mountain to the south of Tashuihe fault.It experienced a severe deformation characterized by the macrostructure and subminiature pictures,demonstrating multidirections and other typical features of shearing.The deformation was developed over two time periods:the late Ordovician during which the reverse nappe and right-lateral shearing was formed by the northward compressive stress field,and the late Carboniferous while the uplifting decollement and left-lateral strike-slip was formed by shear stresses caused by the granite intrusions.An overall displacement for each of the two time periods is,respectively,2.2 km and 2.46 km,corresponding to a differential paleo-stress of 82 Mpa and 89 Mpa. |
| Keywords: | Tashuihe ductile shear zone deformation structure deformation period Haerlike Mountain Tianshan Xinjiang |
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