中国大陆重力场变化及其引起的地球动力学特征
|
摘要
利用中国地壳运动观测网络1998-2000年间绝对重力和相对重力观测资料获得中国大陆重力场空间动态变化结果,分析研究了1998-2000年中国大陆重力场变化及其特征。
Gravity field and some geodynamic characteristics in Mainland of China during 1998-2000 have been analyzed with spatial evolution of gravity field in Mainland of China.The following conclusions are made: ① there is correlation between variation shape of gravity anomalies and spatial distribution of Bouguer gravity anomalies in Mainland of China.② From the strike of contours and its distribution of gravity anomaly variation in Mainland of China,several gradient belts of gravity variation in large scale appeared obviously in the background with total trend of gravity variation anomaly,which are almost consistent with the distribution of tectonic frame of main faults in China. ③ The anomaly area of gravity variation and its gradient belts are closely associated with the distribution of epicenters.④ According to gravity variation in Mainland of China,the area can be divided into three parts: Qinghai-Tibet and its surroundings,southeast foreland and northeast area,which reflected three different stress states.
Gravity field and some geodynamic characteristics in Mainland of China during 1998-2000 have been analyzed with spatial evolution of gravity field in Mainland of China.The following conclusions are made: ① there is correlation between variation shape of gravity anomalies and spatial distribution of Bouguer gravity anomalies in Mainland of China.② From the strike of contours and its distribution of gravity anomaly variation in Mainland of China,several gradient belts of gravity variation in large scale appeared obviously in the background with total trend of gravity variation anomaly,which are almost consistent with the distribution of tectonic frame of main faults in China. ③ The anomaly area of gravity variation and its gradient belts are closely associated with the distribution of epicenters.④ According to gravity variation in Mainland of China,the area can be divided into three parts: Qinghai-Tibet and its surroundings,southeast foreland and northeast area,which reflected three different stress states.
引文
[1]牛之俊,马宗晋,陈鑫连,等.中国地壳运动观测网络[J].大地测量与地球动力学,2002,22(3):88-93
[2]马宗晋,陈鑫连,叶叔华,等.中国大陆现今地壳运动的GPS研究[J].科学通报,2001,46(13):1 118-1 121
[3]Wang Qi,Zhang Peizhen,Freymueller J,et al.Pres-ent-Day Crustal Deformation in China Constrainedby Global Positioning System measurements[J].Science,2001,294:574-577
[4]江在森,马宗晋,张希,等.GPS初步结果揭示的中国大陆水平应变场与构造变形[J].地球物理学报,2003,46(3):352-358
[5]黄立人,符养,段五杏,等.由GPS观测结果推断中国大陆活动构造边界[J].地球物理学报,2003,46(5):609-615
[6]张培震,邓启东,张国民,等.中国大陆活动地块与强震[J].中国科学D辑,2002,32(增刊):5-11
[7]许厚泽.重力观测在中国地壳运动观测网络中的作用[J].大地测量与地球动力学,2003,23(3):1-3
[8]祝意青,王双绪,江在森,等.昆仑山口西8.1级地震前重力变化[J].地震学报,2003.25(3):291-297
[9]傅广裕,张勇军,刘少明,等.昆仑山口西8.1级地震前后重力场动态变化[J].大地测量与地球动力学报,2003,23(1):42-46
[10]张为民,王勇,郝兴华,等.绝对重力基准点的重复测量[J].大地测量与地球动力学,2003.23(3):104-106
[11]刘冬至,李辉,刘绍府.重力测量资料的处理系统——LGADJ[C]//地震预报方法实用化研究文集.北京:地震出版社,1991,339-350
[12]吴雪芳,陈益惠,李辉,等.全国重力联网和精度评定[J].中国地震,1995,11(1):92-98
[13]杨元喜,郭春喜,刘念,等.绝对重力与相对重力混合平差的基准及质量控制[J].测绘工程,2001,10(2):11-14
[14]郭春喜,李斐,王斌.应用抗差估计理论分析2000国家重力基本网[J].武汉大学学报.信息科学版,2005,30(3):242-245
[15]马杏垣.重力作用与构造运动[M].北京:地震出版社,1989,123-129
[16]狄原幸男.罗岚,李辉.伴随地壳运动的重力变化研究及进展[J].国际地震动态,1996,(6),28-31
[17]马丽,李家正.大同地区几次中强震前后的重力变化[J].西北地震学报,1994,16(1),33-39
[18]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
[19]王勇,张为民,詹金刚,等.重复绝对重力测量观测到的滇西地区和拉萨点重力变化及其意义[J].地球物理学报,2004,47(1):95-100
[20]孙和平.重力场的时间变化与地球动力学[J].中国科学院院刊,2004,19(3):189-193
[21]邓起东,张培震,冉勇康,等.中国活动构造基本特征[J].中国科学(D),2002,32(12):1020-1030
[22]丁国瑜.中国岩石圈动力学概论[M].北京:地震出版社,1991
[23]汪素云,许忠淮,俞言祥,等.中国及其邻区周围板块作用力的研究[J].地球物理学报,1996.39(6):764-771
[24]王琪,张培震,牛之俊,等.中国大陆现今地壳运动和构造变形[J].中国科学D辑,2001,31(7):529-536
[25]曾融生,丁志峰,吴庆举.青藏高原岩石圈构造及动力学过程研究[J].地球物理学报,1994,37(增刊):99-116
[26]傅容珊,黄建华,徐耀民,等.青藏高原——天山地区岩石层构造运动的地幔动力学机制[J].地球物理学报,1998,41(5):658-668
[2]马宗晋,陈鑫连,叶叔华,等.中国大陆现今地壳运动的GPS研究[J].科学通报,2001,46(13):1 118-1 121
[3]Wang Qi,Zhang Peizhen,Freymueller J,et al.Pres-ent-Day Crustal Deformation in China Constrainedby Global Positioning System measurements[J].Science,2001,294:574-577
[4]江在森,马宗晋,张希,等.GPS初步结果揭示的中国大陆水平应变场与构造变形[J].地球物理学报,2003,46(3):352-358
[5]黄立人,符养,段五杏,等.由GPS观测结果推断中国大陆活动构造边界[J].地球物理学报,2003,46(5):609-615
[6]张培震,邓启东,张国民,等.中国大陆活动地块与强震[J].中国科学D辑,2002,32(增刊):5-11
[7]许厚泽.重力观测在中国地壳运动观测网络中的作用[J].大地测量与地球动力学,2003,23(3):1-3
[8]祝意青,王双绪,江在森,等.昆仑山口西8.1级地震前重力变化[J].地震学报,2003.25(3):291-297
[9]傅广裕,张勇军,刘少明,等.昆仑山口西8.1级地震前后重力场动态变化[J].大地测量与地球动力学报,2003,23(1):42-46
[10]张为民,王勇,郝兴华,等.绝对重力基准点的重复测量[J].大地测量与地球动力学,2003.23(3):104-106
[11]刘冬至,李辉,刘绍府.重力测量资料的处理系统——LGADJ[C]//地震预报方法实用化研究文集.北京:地震出版社,1991,339-350
[12]吴雪芳,陈益惠,李辉,等.全国重力联网和精度评定[J].中国地震,1995,11(1):92-98
[13]杨元喜,郭春喜,刘念,等.绝对重力与相对重力混合平差的基准及质量控制[J].测绘工程,2001,10(2):11-14
[14]郭春喜,李斐,王斌.应用抗差估计理论分析2000国家重力基本网[J].武汉大学学报.信息科学版,2005,30(3):242-245
[15]马杏垣.重力作用与构造运动[M].北京:地震出版社,1989,123-129
[16]狄原幸男.罗岚,李辉.伴随地壳运动的重力变化研究及进展[J].国际地震动态,1996,(6),28-31
[17]马丽,李家正.大同地区几次中强震前后的重力变化[J].西北地震学报,1994,16(1),33-39
[18]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
[19]王勇,张为民,詹金刚,等.重复绝对重力测量观测到的滇西地区和拉萨点重力变化及其意义[J].地球物理学报,2004,47(1):95-100
[20]孙和平.重力场的时间变化与地球动力学[J].中国科学院院刊,2004,19(3):189-193
[21]邓起东,张培震,冉勇康,等.中国活动构造基本特征[J].中国科学(D),2002,32(12):1020-1030
[22]丁国瑜.中国岩石圈动力学概论[M].北京:地震出版社,1991
[23]汪素云,许忠淮,俞言祥,等.中国及其邻区周围板块作用力的研究[J].地球物理学报,1996.39(6):764-771
[24]王琪,张培震,牛之俊,等.中国大陆现今地壳运动和构造变形[J].中国科学D辑,2001,31(7):529-536
[25]曾融生,丁志峰,吴庆举.青藏高原岩石圈构造及动力学过程研究[J].地球物理学报,1994,37(增刊):99-116
[26]傅容珊,黄建华,徐耀民,等.青藏高原——天山地区岩石层构造运动的地幔动力学机制[J].地球物理学报,1998,41(5):658-668
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