| 压剪性构造的三维构造样式 |
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| 引用本文： | 王桂梁,谭海樵.压剪性构造的三维构造样式[J].地质科学,1997,32(3):375-386. |
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| 作者姓名： | 王桂梁 谭海樵 |
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| 作者单位： | 1. 中国矿业大学, 徐州221008;2. 普利茅斯大学, 英国;3. 中国石油总公司, 北京100724 |
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| 摘 要： | 兼受剪切与挤压作用而形成的压剪性构造,根据挤压力与剪切力的比率不同而出现各种不同的构造样式:压剪比大于1、以挤压为主兼有剪切的有山东龙泉井田的网络状构造和四川南桐的紧密狭窄的雁列式构造。安徽九龙岗的斜滑双冲构造属于又剪又压、压剪比近于1的断裂型压剪性构造。而压剪比小于1的有由深层次走滑剪切引起的四川龙王洞的正花状构造,和河北井陉的多字型构造。安徽百善的S型构造是早期的压剪作用,发展到晚期几乎全部转化为剪切扭动,压剪比逐渐地趋近于0。
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| 关 键 词： | 压剪性构造 三维构造样式 压剪比率 |
| 收稿时间： | 1996-01-29 |
| 修稿时间： | 1996-01-29; |
THREE-DIMENSIONAL MODELS OF TRANSPRESSION STRUCTURE |
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| Wang Guiliang,Tan Haiqiao,Jiang Bo,Yu Zhiwei,Wang Daqing,D. C. P. Peacock,Xu Fengyins.THREE-DIMENSIONAL MODELS OF TRANSPRESSION STRUCTURE[J].Chinese Journal of Geology,1997,32(3):375-386. |
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| Authors: | Wang Guiliang Tan Haiqiao Jiang Bo Yu Zhiwei Wang Daqing D C P Peacock Xu Fengyins |
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| Institution: | 1. College of Mineral Resource and Environment Sciences, China University of and Technology, Xuzhou 221008;2.(Department of Geoiogical Sciences, University of piymouth, Drake Circus, PLA 8AA U.K;3. China National Petraleum Corporation, Beijing 100724 |
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| Abstract: | A range of transpressional structures are described. for which three dimensional data are available because they occur in coal mines. Differences between the structures are related to differences in the ratio of pure shear to simple shear. The Longquan fault network is dominated by compression and in an environment approaching pure shear. The tight and narrow en echelon structure in Nantong coal mine indicates that contraction is more important than shear, too, because of the length of each structure is large in proportion of the amount of overstep. The oblique-slip duplex in Jiulonggang coal mine show approximately equal amount of simple shear and pure shear, with the vertical and horizomtal displacements being approximately equal. The positive flower structure in Longwangdong and the faultsfolds in Jingxing coal mine are donvnated by shear with some contraction. The longwangdong structure is controlled by the reactivation of basement jauits, while the Jingxing structure is generated mainly by sinistral strike-slip of boundary faults. The sigmoidal structure in Baishan coal mine was caused by transpression and a simultaneous torsion, with a much higher proportion of shear than compression. These structures are described in terms of the stresses and kinematics involved in their formation. |
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| Keywords: | Transpression stricture Three-dimensional model ratio Pure shear to simple shear |
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