信阳市燃气混气站场地及区域断裂活动性的综合研究
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摘要
运用多学科、多手段相结合的方法,从断裂构造内部结构特征、构造岩研究、构造裂隙统计分析、红外相位法位移监测、高密度电阻率法、钻探验证、年代学研究、新构造运行分析、遥感图像解译、地震活动、数值模拟等方面入手,对信阳市燃气混气站的断裂活动性进行了全面而系统的论证,指出场区断裂规模小,第四纪无大规模差异升降运动,邻区地震活动小且弱,区域构造稳定性高,应力平缓,是一个稳定的"岛区";场区中部和南部断裂已基本愈合,无明显的电性异常;场区北部通过综合楼的断层在36万年左右有过活动,但此后没有重新活动,属于非全新活动断层。
based on multidisciplinary research, such as tectonic geology, displacement observation with infrared phase, chronology study, neotectonics analysis, remote sensing analysis, seismicity analysis, numerical modeling, the activity of faults under the gas station of Xinyang city is studied. The results show that the scale of the faults is not large, and no large up and down motion in Quaternary. As the seismicity is weak in its vicinity, local structure is stable, and stress is smooth, it might be a stable 'island'. The faults in central and southern part of the site have been healed, so there is no electric anomaly. The faults north of the site had been active 360 thousand years ago, but have never moved again since then, so they belong to Holocene active faults.
based on multidisciplinary research, such as tectonic geology, displacement observation with infrared phase, chronology study, neotectonics analysis, remote sensing analysis, seismicity analysis, numerical modeling, the activity of faults under the gas station of Xinyang city is studied. The results show that the scale of the faults is not large, and no large up and down motion in Quaternary. As the seismicity is weak in its vicinity, local structure is stable, and stress is smooth, it might be a stable 'island'. The faults in central and southern part of the site have been healed, so there is no electric anomaly. The faults north of the site had been active 360 thousand years ago, but have never moved again since then, so they belong to Holocene active faults.
引文
1)河南省豫震科技开发公司 ,信阳市城市管道燃气工程混气站工程场地地震安全性评价工作报告 , 2 0 0 0 .
2)李细光等 北淮阳及其邻接区地壳稳定性研究 《大地构造与成矿学》(待刊 )2 0 0 3 .
3)核工业信阳工程勘察院 ,信阳市燃气发展有限燃气混气站场地岩土工程勘察报告 , 2 0 0 1 .
4)核工业信阳工程勘察院 ,信阳市燃气发展有限公司燃气混气站场地岩土工程勘察报告 , 2 0 0 1 .
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[4] 李细光,张志,曾克峰.信阳市燃气混气站区域断裂活动性分析[J],地学前缘,2002,(4):370.
[5] 张强,朱文耀.中国地壳各构造块体运动模型的初建[J],科学通报,2000,45(9).
[6] 李延兴,黄诚,胡新康,等.板内块体的刚性塑性运动模型与中国大陆主要块体的应变状态[J],地震学报,2001,(6):570 572.
[7] 马杏垣.中国岩石圈动力学地图集[M],北京:中国地图出版社,1989,43.
[8] 刘立林,曾佐勋.信阳市燃气混气站区域构造应务场数值模拟研究[J],地质科技情报,2002,(4):45 47.
2)李细光等 北淮阳及其邻接区地壳稳定性研究 《大地构造与成矿学》(待刊 )2 0 0 3 .
3)核工业信阳工程勘察院 ,信阳市燃气发展有限燃气混气站场地岩土工程勘察报告 , 2 0 0 1 .
4)核工业信阳工程勘察院 ,信阳市燃气发展有限公司燃气混气站场地岩土工程勘察报告 , 2 0 0 1 .
[1] 杨森楠,杨巍然.中国区域大地构造学[M],北京:地质出版社,1985,173 175.
[2] 河南省地质矿产厅第三地质调查队,信阳市幅地质图(1∶5万)及说明书[M],1996,39 50.
[3] 袁学诚.中国地球物理图集[M],北京:地质出版社,1996,30 37.
[4] 李细光,张志,曾克峰.信阳市燃气混气站区域断裂活动性分析[J],地学前缘,2002,(4):370.
[5] 张强,朱文耀.中国地壳各构造块体运动模型的初建[J],科学通报,2000,45(9).
[6] 李延兴,黄诚,胡新康,等.板内块体的刚性塑性运动模型与中国大陆主要块体的应变状态[J],地震学报,2001,(6):570 572.
[7] 马杏垣.中国岩石圈动力学地图集[M],北京:中国地图出版社,1989,43.
[8] 刘立林,曾佐勋.信阳市燃气混气站区域构造应务场数值模拟研究[J],地质科技情报,2002,(4):45 47.
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