聊城—兰考断裂及其土壤汞、氡气异常
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摘要
分析了聊城—兰考断裂带形成和地质背景,将断裂带划分为3段,分述各段不同时代构造特征和地震活动等。土壤汞气、氡气测量得出,该区域存在明显的汞气、氡气异常,且异常位置接近,异常区宽度多在90～200m,表明地壳存在着汞气和氡气向上运移通道,证实了隐伏断裂存在,而且具有活动性。
The Liaocheng-Lankao fault can be divided into three parts based on an analysis of its geological background.This paper describes the characteristics of geological structure and seismic activity of every part in different geological periods.The results show that there exist obvious mercury and radon anomalies in this area.The anomalies are close to each other,and the widths of the anomaly areas are mostly 90～200 m.All these facts suggest that a buried fault does exist,and the fault is an active fault.
The Liaocheng-Lankao fault can be divided into three parts based on an analysis of its geological background.This paper describes the characteristics of geological structure and seismic activity of every part in different geological periods.The results show that there exist obvious mercury and radon anomalies in this area.The anomalies are close to each other,and the widths of the anomaly areas are mostly 90～200 m.All these facts suggest that a buried fault does exist,and the fault is an active fault.
引文
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[2]胡连英,孙寿成.聊考断裂带平均位移速率的初步研究[J].华北地震科学,1986,(1):58-65.Hu Lianying,Sun Shoucheng.The average displacement rate preliminary study of Liaokao Fault[J].North China Earthquake Sciences,1986,(1):58-65(in Chinese with English abstract).
[3]单松炜,王淑霞.鲁西控煤构造特征及其演化分析[J].煤田地质与勘探,2000,(1):6-9.Shan Songwei,Wang Shuxia.Features and evolution analysis of coal-controlling structures in Western Shandong[J].Coal Geology&Exploration,2000,(1):6-9(in Chinese with English abstract).
[4]侯明金,Jacques Mercier,Pierre Vergely,等.郯庐断裂带的两大发展阶段——广义的逆冲推覆断裂带和狭义的平移断裂带[J].中国地质,2006,33(6):1267-1275.Hou Mingjin,Jacques Mercier,Pierre Vergely,et al.Two development stages of the Tanlu fault zone:the stages of the overthrust fault zone sensu lato and the wrench fault zone sensu stricto[J].Geology in China,2006,33(6):1267-1275(in Chinese with English abstract).
[5]陈根文,夏换,陈绍清.华北地区晚中生代重大构造转折的地质证据[J].中国地质,2008,35(6):1162-1177.Chen Genwen,Xia huan,Chen Shaoqing.The geological evidence for the tectonic transition in late Mesozoic in North China[J].Geology in China,2008,35(6):1162-1177(in Chinese with English abstract).
[6]牛树银,胡华斌,毛景文,等.鲁西地区地质构造特征及其形成机制[J].中国地质,2004,31(1):34-39.Niu Shuyin,Hu Huabin,Mao Jingwen,et al.Structure in western Shandong and its genetic mechanism[J].Geology in China,2004,31(1):34-39(in Chinese with English abstract).
[7]贾占岭,陈时军,付希庆,等.山东省地壳垂直形变特征与深大断裂带的活动性[J].地壳形变与地震,1992,(1):84-91.Jia Zhanling,Chen Shijun,Fu Xiqing,et al.Characteristics of crustal vertical deformation and activity of abyssal fault zone in Shandong Province[J].Crustal Deformation and Earthquake,1992,(1):84-91(in Chinese with English abstract).
[8]戴富贵,刘宝睿,杨克绳.华北盆地地震剖面地质解释及其构造演化[J].中国地质,2008,35(5):820-840.Dai Fugui,Liu Baorui,Yang Kesheng.Geological interpretation of seismic sections and tectonic evolution of the North China basin[J].Geology in China,2008,35(5):820-840(in Chinese with English abstract).
[9]Heinemann J,Stock J,Clayton R,et al.Constraints on the proposed Marie Byrd Land BellingShausen plate boundary from seismic reflection data[J].J Geophys,Res.,1999,104(B11):25321-25330.
[10]孟广魁,何开明,班铁,等.氡、汞测量用于断裂活动性和分段的研究[J].中国地震,1997,13(1):43-51.Meng Guangkui,He Kaiming,Ban Tie,et al.Study on activity and segmentation of active fault using measurements of radon and mercury gases[J].Earthquake Research in China,1997,13(1):43-51(in Chinese with English abstract).
[11]向宏发,王学潮,虢顺民,等.聊城—兰考隐伏断裂第四纪活动性的综合探测研究[J].地震地质,2000,22(4):351-359.Xiang Hongfa,Wang Xuechao,Chi Shunmin,et al.Integrated survey and investigation on the Quaternary activity of the Liaocheng-Lankao Buried Fault[J].Seismology and Geology,2000,22(4):351-359(in Chinese with English abstract).
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