| 南京湖山地区大石碑断层性质及成因探讨 |
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| 作者姓名： | LI Tian XIE Guoai WANG Guangkou TIAN Rongsong LI Fahao Amirdin Arkin |
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| 摘 要： | 南京湖山地区大石碑断层位于大石碑向斜北西翼，在北东方向人工开采的剖面上表现为正断层性质。通过对大石碑
断层及其附近断层和节理的构造要素测量分析、构造应力场求解等研究，文章认为该断层以右行平移断层为主，兼有正断
层的性质。印支期该区在北西-南东方向挤压构造应力场作用下，形成北东方向的褶皱（宁镇山脉）、北西方向的右行平移
断层和北北西方向左行平移断层，其中北西方向的右行平移断层在北东方向的剖面上表现出正断层的假象，是断层效应的
一个典型教学实例。
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| 关 键 词： | 大石碑断层 右行平移断层 断层效应 南京湖山地区 |
The Discussion About the Property and Formation Mechanism of the Dashibei Fault in Hushan,Nanjing |
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| LI Tian,XIE Guoai,WANG Guangkou,TIAN Rongsong,LI Fahao,Amirdin Arkin.The Discussion About the Property and Formation Mechanism of the Dashibei Fault in Hushan,Nanjing[J].Geological Journal of China Universities,2018,24(6):930. |
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| Abstract: | The Dashibei Fault in the Hushan region, Nanjing is located in northwest flank of the Dashibei syncline and exhibits as
normal fault in section. Based on the analysis of structural elements, including the faults and joints, and the study of tectonic stress
field in study region, together with field observation, we propose that the Dashibei Fault mainly present as right-lateral strike slip with
some degree of normal fault. The NE folds (Ningzhen mountain range), NW right strike-slip faults and NNW sinistral strike-slip faults
were formed due to the NW-SE tectonic stress during in the Indosinian. The NW right strike-slip fault displays false appearance of
normal fault in NE cross section，and thus as a typical teaching case of fault effect. |
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| Keywords: | Dashibei fault right strike-slip faults fault effect Hushan Hill of Nanjing |
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