新疆南天山地区重力场动态演化特征
|
摘要
通过分析南天山地区2005-2008年近8期流动重力测量资料,研究了重力场的时空动态演化特征,提取与地震活动有关的信息,并对重力场变化与构造活动及地震活动的关系进行了探讨。结果表明:重力场变化与构造环境变化有关;地震孕育发生阶段重力场出现一定范围的区域性重力异常;地震往往多发于重力场变化正负值交替的零线附近。
Through analysing the mobile gravity measurement dada of last 8 times from 2005 to 2008 in Southern Tianshan area,Xinjiang Region,the spatial and temporal dynamic evolution characteristics of gravity field in this area are studied,the information related with seismisity is extracted,and relationship among the variation of gravity field,tectonic activity and seismic activity are discussed also.The result shows that the changes of gravitational field relate to the changes of tectonic environment.In the earthquake pregnant stage,some regional anomalies of gravity appear in a certain range.Earthquake often occurres near the zero line of gravity contours.
Through analysing the mobile gravity measurement dada of last 8 times from 2005 to 2008 in Southern Tianshan area,Xinjiang Region,the spatial and temporal dynamic evolution characteristics of gravity field in this area are studied,the information related with seismisity is extracted,and relationship among the variation of gravity field,tectonic activity and seismic activity are discussed also.The result shows that the changes of gravitational field relate to the changes of tectonic environment.In the earthquake pregnant stage,some regional anomalies of gravity appear in a certain range.Earthquake often occurres near the zero line of gravity contours.
引文
[1]胡斌,祝意青,田勤俭,等.关中地区重力场及其时空动态演化特征[J].中国地震,2006,22(2):172-181.
[2]王晓强,李杰,朱治国,等.伽师及其邻近地区重力场动态演化特征初步分析[J].内陆地震,2007,21(3):213-217.
[3]祝意青,胡斌,朱桂芝,等.河西地区重力场及其动态演化特征[J].大地测量与地球动学,2003,23(4):44-48.
[4]赵瑞斌,李军,沈军.喀什坳陷北缘活动断裂与古地震初步研究[J].地震学报,2000,22(3):327-331..
[5]祝意青,胡斌,李辉,等.新疆地区重力变化与伽师6.8级地震[J].大地测量与地球动力学,2003,23(3):66-69.
[6]秦建增,李清林,冯建林,等.太原ML5.0级地震前后的重力场变化[J].华北地震科学,2004,22(2):40-44.
[7]李子涛,梁放.海城4.0级地震前后重力场变化特征探讨[J].华北地震研究,2003,19(3):45-51.
[8]王晓强,王琪,程瑞忠,等.新疆伽师及邻近地区现今地壳形变的GPS监测与研究[J].西北地震学报,2002,24(3):199-207.
[9]史丽艳,朱传庆,杨书江,等.新疆乌什地震带断裂研究的综合地球物理方法[J].西北地震学报,2007,29(2):156-160.
[10]唐新功,陈永顺,严良俊,等.应用布格重力异常研究太行山地区地壳密度结构[J].西北地震学报,2008,30(4):305-309.
[11]王筱荣,李志海.新疆中强震预报的探讨[J].西北地震学报,2008,30(2):132-138.
[2]王晓强,李杰,朱治国,等.伽师及其邻近地区重力场动态演化特征初步分析[J].内陆地震,2007,21(3):213-217.
[3]祝意青,胡斌,朱桂芝,等.河西地区重力场及其动态演化特征[J].大地测量与地球动学,2003,23(4):44-48.
[4]赵瑞斌,李军,沈军.喀什坳陷北缘活动断裂与古地震初步研究[J].地震学报,2000,22(3):327-331..
[5]祝意青,胡斌,李辉,等.新疆地区重力变化与伽师6.8级地震[J].大地测量与地球动力学,2003,23(3):66-69.
[6]秦建增,李清林,冯建林,等.太原ML5.0级地震前后的重力场变化[J].华北地震科学,2004,22(2):40-44.
[7]李子涛,梁放.海城4.0级地震前后重力场变化特征探讨[J].华北地震研究,2003,19(3):45-51.
[8]王晓强,王琪,程瑞忠,等.新疆伽师及邻近地区现今地壳形变的GPS监测与研究[J].西北地震学报,2002,24(3):199-207.
[9]史丽艳,朱传庆,杨书江,等.新疆乌什地震带断裂研究的综合地球物理方法[J].西北地震学报,2007,29(2):156-160.
[10]唐新功,陈永顺,严良俊,等.应用布格重力异常研究太行山地区地壳密度结构[J].西北地震学报,2008,30(4):305-309.
[11]王筱荣,李志海.新疆中强震预报的探讨[J].西北地震学报,2008,30(2):132-138.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心