| 盘谷寺-新乡断裂倾向反转成因探讨 |
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| 引用本文： | 邓小娟,袁洪克,石金虎,左 莹,季通宇.盘谷寺-新乡断裂倾向反转成因探讨[J].大地测量与地球动力学,2018,38(11):1117-1121. |
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| 作者姓名： | 邓小娟 袁洪克 石金虎 左 莹 季通宇 |
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| 摘 要： | 盘谷寺-新乡断裂在大高村附近断层倾向发生反转，大高村以西倾向为南，大高村以东倾向为北。为查明倾向反转成因，跨断层布设3条浅层地震测线，通过采用高分辨率地震数据及高精度数据处理技术，获得清晰的地下结构与构造成像。结果显示，武陟隆起北侧边缘发育有隐伏隆起，该隆起的发育使得盘谷寺-新乡断裂大高村以西段在L1测线与L2测线之间消失，同时向南倾的武陟断裂演变为济源凹陷的边界断裂，自西向东该隆起规模逐渐增大。该隆起北侧边缘开始发育北盘谷寺-新乡断裂大高村以东段，南侧边缘开始发育向南倾的平陵断裂，且随隆起规模的继续增大，盘谷寺-新乡断裂大高村以东段及平陵断裂自西向东活动性逐渐增强。推测该隐伏隆起是引起该区盘谷寺-新乡断裂倾向反转的主要成因。
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| 关 键 词： | 盘谷寺-新乡断裂 倾向反转 武陟隆起 浅层地震勘探 |
Study on the Tendency Inversion Genesis of Pangusi-Xinxiang Fault |
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| DENG Xiaojuan,YUAN Hongke,SHI Jinhu,ZUO Ying,JI Tongyu.Study on the Tendency Inversion Genesis of Pangusi-Xinxiang Fault[J].Journal of Geodesy and Geodynamics,2018,38(11):1117-1121. |
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| Authors: | DENG Xiaojuan YUAN Hongke SHI Jinhu ZUO Ying JI Tongyu |
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| Abstract: | he Pangusi-Xixiang fault tendency reversed near the Dagao village. The western part is south tendency and east part is north tendency. In order to determine the inversion genesis in the Pangusi-Xinxiang fault tendency reverse regional, we set 3 shallow seismic survey lines across the fault. Based on the high-resolution seismic data acquisition and high-precision data processing technology, the clear underground structure and tectonic imaging is obtained of the fault tendency reverse regional. The results show that there is a hidden uplift in the north edge of the Wuzhi uplift, and the development of the hidden uplift makes the western part of the Pangusi-Xinxiang fault disappeared between L1 and L2. At the same time, the Wuzhi fault became the boundary fault of the Jiyuan sag. From west to east, the hidden uplift scale increases gradually. The east part of the Pangusi-Xinxiang fault and the Pingling fault began to develop at the margin of the hidden uplift. With the hidden uplift increasing, the activity of Pangusi-Xinxiang fault and the Pingling fault gradually increases. It is suggested that the hidden uplift is the main cause of the tendency inverse of the Pangusi-Xinxiang fault. The results provide a reliable basis for the characteristics and activity evaluation of Pangusi-Xinxiang fault. |
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| Keywords: | Pangusi-Xinxiang fault fault tendency reverse Wuzhi uplift shallow seismic prospect |
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