| 中天山东部南北两缘韧性剪切带变形特征 |
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| 引用本文： | 唐哲民 蔡志慧 王宗秀 陈方远. 中天山东部南北两缘韧性剪切带变形特征[J]. 中国地质, 2011, 38(4): 970-979 |
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| 作者姓名： | 唐哲民 蔡志慧 王宗秀 陈方远 |
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| 作者单位： | 1. 中国地质科学院地质研究所,大陆构造与动力学国家重点实验室,北京100037
2. 中国地质科学院地质力学研究所,北京,100081 |
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| 基金项目： | 中国石化股份有限公司科技开发部项目“塔里木盆地构造背景、盆山动力学及油气前景”(YPH08110)资助 |
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| 摘 要： | (1)中天山北缘韧性剪切带除右旋韧剪变形之外,还发育相对较弱的左旋韧剪变形,局部残留加里东晚期的逆冲推覆韧剪变形;右旋韧剪变形的变形温度环境为中-低温,左旋韧剪变形的变形温度环境为高温、中温、中低温及低温。(2)中天山南缘韧性剪切带以右旋韧剪变形为主,兼具左旋韧剪变形;右旋韧剪变形的变形温度环境为中温、中低温、低温,左旋韧剪变形的变形温度环境为高温、中温、中低温及低温。(3)东天山存在一系列右旋韧性剪切带,中天山南北两缘韧性剪切带的构造变形与辛格尔断裂、兴地断裂等右旋韧性剪切带的变形以及塔里木北缘东部晚震旦—早古生代地层的同劈理褶皱变形、南天山泥盆纪地层的变形可能具成因联系。
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| 关 键 词： | 中天山北缘 中天山南缘 韧性剪切带 石英组构模型 变形温度环境 |
Deformational characteristics of ductile shear zones in northern and southern margins of eastern central Tianshan |
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| TANG Zhe-min,CAI Zhi-hui,WANG Zong-xiu,CHEN Fang-yuan. Deformational characteristics of ductile shear zones in northern and southern margins of eastern central Tianshan[J]. Geology in China, 2011, 38(4): 970-979 |
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| Authors: | TANG Zhe-min CAI Zhi-hui WANG Zong-xiu CHEN Fang-yuan |
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| Affiliation: | TANG Zhe-min1,CAI Zhi-hui1,WANG Zong-xiu2,CHEN Fang-yuan1(1.State Key Laboratory for Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China,2.Institute of Geomechanics,Beijing 100081,China) |
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| Abstract: | (1) There exists relatively weak left-lateral ductile-shear deformation in addition to right-lateral ductile-shear deformation in the northern Central Tianshan ductile shear zone,with local remnant late Caledonian thrust nappe ductile-shear deformation;the temperature environment of the right-lateral ductile-shear deformation is medium-low temperature,while the temperature environment of the left-lateral ductile-shear deformation is high,medium,medium-low and low temperature.(2) The southern Central Tiansha... |
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| Keywords: | northern margin of central Tianshan southern margin of central Tianshan ductile shear zones quartz LPO model deformational temperature environment |
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