六盘山东麓断裂带逸出气氡浓度特征分析
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摘要
在六盘山东麓断裂带布设8条测量剖面,现场测量了土壤气Rn浓度及通量,来讨论六盘山东麓断裂带逸出气氡浓度特征及其与构造活动性间关系。测量结果表明:8个测区测量的气Rn浓度平均值在23.88~66.34kBq间,通量在2 194~14 091Bqm-3s-1间。断裂带土壤气Rn浓度平均值在空间分布上,自北向南逐渐增大,由44.61kBq升高至66.34kBq,到断裂带南段西贤村、刘店村两个剖面Rn浓度平均值减小,这可能是由空间上断裂活动性差异引起的。
In this paper,concentration characteristics of escaping radon and its relationship with tectonic activity from the Eastern Liupanshan Piedmont Fault Zone have been discussed.8measuring sections were laid in the Eastern Liupanshan Piedmont Fault Zon,radon concentration and flux of soil gas were measured in the field.The measurement results show that:The average value of the soil gas radon concentration is between 23.88 kBq to 66.34 kBq and the flux is between2 194Bqm-3s-1 to 14 091Bqm-3s-1 in the 8test areas.The mean value of soil gas Rn concentration in the fault zone in spatial distribution is gradually increased From north to south by 44.61 kBq increased to 66.34 kBq,but the average radon concentration decreased in Xixian Village and Liudian Village which located in the southern section of the fault zone.This may be caused by the difference in the activity of the faults in the space.
In this paper,concentration characteristics of escaping radon and its relationship with tectonic activity from the Eastern Liupanshan Piedmont Fault Zone have been discussed.8measuring sections were laid in the Eastern Liupanshan Piedmont Fault Zon,radon concentration and flux of soil gas were measured in the field.The measurement results show that:The average value of the soil gas radon concentration is between 23.88 kBq to 66.34 kBq and the flux is between2 194Bqm-3s-1 to 14 091Bqm-3s-1 in the 8test areas.The mean value of soil gas Rn concentration in the fault zone in spatial distribution is gradually increased From north to south by 44.61 kBq increased to 66.34 kBq,but the average radon concentration decreased in Xixian Village and Liudian Village which located in the southern section of the fault zone.This may be caused by the difference in the activity of the faults in the space.
引文
[1]邓起东,张维歧,张培震,等.海原走滑断裂带及其尾端挤压构造[J].地震地质,1989,11(1):1-14.
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[4]向宏发,虢顺民,张秉良,等.六盘山东麓活动逆断裂构造带晚第四纪以来的活动特征[J].地震地质,1998,20(4):321-327.
[5]张秉良,向宏发,虢顺民,等.六盘山东麓断裂断层泥的组构特征及其意义[J].地震地质,2000,22(1):47-52.
[6]邵志刚,张浪平.南北地震带北段近期强震趋势研究[J].中国地震,2013,29(1):26-36.
[7]范燕,车兆宏.南北地震带北段及其两侧断层现今活动性[J].地震,2001,21(2):87-93.
[8]金春华,张文孝,任雪梅,等.两种新参数在银川—河套和祁连山—六盘山地震带地震预报中的应用研究[J].西北地震学报,2005,27(2):141-145.
[9]杜建国,宇文欣,李圣强,等.八宝山断裂带逸出氡的地球化特征及其映震效能[J].地震,1998,18(2):155-162.
[10]King C Y.Radon Emanation on San Andreas Fault[J].Nature,1978,271:516-519.
[11]King C Y.Episodic Radon Changes in Subsurface Soil Gas Along Active Faults and Possible Relation to Earthquakes[J].J Geophys Res,1980,85(B6):3065-3078.
[12]汪成民,李宣瑚,魏柏林.断层气测量在地震科学中的应用[J].北京:地震出版社,1991:1-197.
[13]宇文欣,简春林,朱自强.断裂逸出氡震前异常变化与地震对应关系的初步研究[G]//国家地震局分析预报中心编.地震预报研究.北京:地震出版社,1995:173-179.
[14]张慧,张新基,苏鹤军,等.兰州市活动断层土壤气汞、氡地球化学特征场地试验[J].西北地震学报,2010,32(3):273-278.
[15]Ajayi T R,Adepelumi A A.Reconnaissance Soil-gas Radon Survey over Faulted Crystal Line Area of Ile-Ife,Nigeria[J].Environmental Eology,2002,41(5):608-613.
[16]Burton M,Neri M,Condarelli D.High Spatial Resolution Radon Measurements Reveal Hidden Active Faults on Mt.Etna[J].Geophysical Research Letters,2004,31(7):L07618.
[17]Cui L.Some Results of Radon Hazard Investigations[J].Geological Review,1994,40(2):157-164.
[18]Igarashi G,Saeki S,Takahata N,et al.Ground-water Radon Anomaly before the Kobe Earthquake in Japan[J].Science,1995,269(5520):60-61.
[19]Tanner A B.Radon Migration in the Ground:a Supplementary Review,the Natural Radiation Environment[R].Symposium Proceeding,Houston Texas,23-28April 1978;Report CONF-780422,US Department of Energy,Washington D C.1980:5-56.
[20]King C Y,King B S,Evans W C,et al.Spatial Radon Anomalies on Active Faults in California[J].Applied Geochemistry,1996,11(4):497-510.
[21]张新基,张慧,苏鹤军,等.刘家堡活动断层土壤气氡、汞地球化学特征[J].地震,2005,25(4):87-92.
[22]周晓成,郭文生,杜建国,等.呼和浩特地区隐伏断层土壤气氡、汞地球化学特征[J].地震,2007,27(1):70-76.
[23]赵振遷,张慧,苏鹤军,等.玛曲断裂带土壤气汞、氡地球化学特征[J].西北地震学报,2011,33(4):376-379.
[24]李营,杜建国,王富宽,等.延怀盆地土壤气体地球化学特征[J].地震学报,2009,31(1):82-91.
[25]LehmannB Ihly B,Salzmann S,et al.Anautomatic Static Chamber for Continuous 220 Rn and 222 Rn Flux Measurements from Soil[J].Radiation Measurements,2004,38:43-50.
[26]Wang D,He L,Shi X,et al.Release flux of Mercury form Different Environmental Surfaces in Chongqing,China[J].Chemosphere,2006,64:1845-1854.
[27]Tuccimei P,Soligo M.Correcting for Interference in Soil Radon Flux Measurements[J].Radiation Measurments,2008,43(1):102-105.
[28]Ciotoli G,Lombardi S,Annunziatellis A.Geostatistical Analysis of Soil Gas Data in a High Seismic Intermontane Basin:Fucino Plain Central Italy[J].Journal of Geophysical Research,2007,112:B05407.1-B05407.23.
[29]Crockett R,Perrier F,Richon P.Spectral-decomposition Techniques for the Identification of Periodic and Anomalous Phenomena in Radon Time-series[J].Natural Hazards and Earth System Sciences,2010,10(3):559-564.
[30]Etiope G,Lombardi S.Evidence for Radon Transport by Carrier Gas Through Faulted Clays in Italy[J].Journal of Radioanalytical and Nuclear Chemistry,1995,193(2):291-300.
[2]陈社发,张培震,邓起东.海原断裂带的演化历史及变形机制——海原活动断裂带[M].北京:地震出版社,1990:139-176.
[3]孙照民,邓起东.六盘山东麓断裂和陇县-宝鸡断裂带基本特征及其相互关系[M].北京:地震出版社,1994.
[4]向宏发,虢顺民,张秉良,等.六盘山东麓活动逆断裂构造带晚第四纪以来的活动特征[J].地震地质,1998,20(4):321-327.
[5]张秉良,向宏发,虢顺民,等.六盘山东麓断裂断层泥的组构特征及其意义[J].地震地质,2000,22(1):47-52.
[6]邵志刚,张浪平.南北地震带北段近期强震趋势研究[J].中国地震,2013,29(1):26-36.
[7]范燕,车兆宏.南北地震带北段及其两侧断层现今活动性[J].地震,2001,21(2):87-93.
[8]金春华,张文孝,任雪梅,等.两种新参数在银川—河套和祁连山—六盘山地震带地震预报中的应用研究[J].西北地震学报,2005,27(2):141-145.
[9]杜建国,宇文欣,李圣强,等.八宝山断裂带逸出氡的地球化特征及其映震效能[J].地震,1998,18(2):155-162.
[10]King C Y.Radon Emanation on San Andreas Fault[J].Nature,1978,271:516-519.
[11]King C Y.Episodic Radon Changes in Subsurface Soil Gas Along Active Faults and Possible Relation to Earthquakes[J].J Geophys Res,1980,85(B6):3065-3078.
[12]汪成民,李宣瑚,魏柏林.断层气测量在地震科学中的应用[J].北京:地震出版社,1991:1-197.
[13]宇文欣,简春林,朱自强.断裂逸出氡震前异常变化与地震对应关系的初步研究[G]//国家地震局分析预报中心编.地震预报研究.北京:地震出版社,1995:173-179.
[14]张慧,张新基,苏鹤军,等.兰州市活动断层土壤气汞、氡地球化学特征场地试验[J].西北地震学报,2010,32(3):273-278.
[15]Ajayi T R,Adepelumi A A.Reconnaissance Soil-gas Radon Survey over Faulted Crystal Line Area of Ile-Ife,Nigeria[J].Environmental Eology,2002,41(5):608-613.
[16]Burton M,Neri M,Condarelli D.High Spatial Resolution Radon Measurements Reveal Hidden Active Faults on Mt.Etna[J].Geophysical Research Letters,2004,31(7):L07618.
[17]Cui L.Some Results of Radon Hazard Investigations[J].Geological Review,1994,40(2):157-164.
[18]Igarashi G,Saeki S,Takahata N,et al.Ground-water Radon Anomaly before the Kobe Earthquake in Japan[J].Science,1995,269(5520):60-61.
[19]Tanner A B.Radon Migration in the Ground:a Supplementary Review,the Natural Radiation Environment[R].Symposium Proceeding,Houston Texas,23-28April 1978;Report CONF-780422,US Department of Energy,Washington D C.1980:5-56.
[20]King C Y,King B S,Evans W C,et al.Spatial Radon Anomalies on Active Faults in California[J].Applied Geochemistry,1996,11(4):497-510.
[21]张新基,张慧,苏鹤军,等.刘家堡活动断层土壤气氡、汞地球化学特征[J].地震,2005,25(4):87-92.
[22]周晓成,郭文生,杜建国,等.呼和浩特地区隐伏断层土壤气氡、汞地球化学特征[J].地震,2007,27(1):70-76.
[23]赵振遷,张慧,苏鹤军,等.玛曲断裂带土壤气汞、氡地球化学特征[J].西北地震学报,2011,33(4):376-379.
[24]李营,杜建国,王富宽,等.延怀盆地土壤气体地球化学特征[J].地震学报,2009,31(1):82-91.
[25]LehmannB Ihly B,Salzmann S,et al.Anautomatic Static Chamber for Continuous 220 Rn and 222 Rn Flux Measurements from Soil[J].Radiation Measurements,2004,38:43-50.
[26]Wang D,He L,Shi X,et al.Release flux of Mercury form Different Environmental Surfaces in Chongqing,China[J].Chemosphere,2006,64:1845-1854.
[27]Tuccimei P,Soligo M.Correcting for Interference in Soil Radon Flux Measurements[J].Radiation Measurments,2008,43(1):102-105.
[28]Ciotoli G,Lombardi S,Annunziatellis A.Geostatistical Analysis of Soil Gas Data in a High Seismic Intermontane Basin:Fucino Plain Central Italy[J].Journal of Geophysical Research,2007,112:B05407.1-B05407.23.
[29]Crockett R,Perrier F,Richon P.Spectral-decomposition Techniques for the Identification of Periodic and Anomalous Phenomena in Radon Time-series[J].Natural Hazards and Earth System Sciences,2010,10(3):559-564.
[30]Etiope G,Lombardi S.Evidence for Radon Transport by Carrier Gas Through Faulted Clays in Italy[J].Journal of Radioanalytical and Nuclear Chemistry,1995,193(2):291-300.
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