利用GPS资料研究郯庐带现今运动及变形状态

Abstract

Abstract: Based on the rotation in the entire block and homogeneous strain model (REHSM), we firstly analyzed the motion and deformation features across the southern part of Tanlu fault from GPS velocity fields in period of 1999—2001, 2001—2004, 2004—2007 and 2007—2009. The results showed dextral strike-slip feature in Weifang-Tancheng segment while sinistral strike slip in Tancheng-Lujiang segment. And the deformation features perpendicular to Tanlu faults has alternated between tension and compression in different time-intervals. Then we resolved the relative rigid motion of blocks around Bohai Bay to the entire Bohai area by deducting the entire rigid motion of the Bohai area. We found that Yanshan-Bohai seismic belt splits this area into two parts, the northern one moved to northwest while the other to southeast.

Key words: Crust deformation, GPS, Tancheng-Lujiang fault zone

LIU Xiao-xia, JIANG Zai-sen, WU Yan-qiang. Motion and Deformation State of the Tancheng- Lujiang Fault Zone Derived from GPS Data[J]. EARTHQUAKE, 2012, 32(4): 1-10.

References

[1] 魏光兴, 刁守中, 周翠英, 等. 郯庐带地震活动性研究[M]. 北京: 地震出版社, 1993.
[2] 龚伟, 曾佐勋, 等. 郯庐断裂带江苏段第四纪活动性研究[J]. 地震研究, 2010, 33(1): 86-92.
[3] 刘东旺, 刘东旺, 刘泽民, 等. 汶川8.0级地震后郯庐断裂带中南段地震危险性研究[J]. 国际地震动态, 2009, No.4: 85-85.
[4] Bayer R, et al. Active deformation in Zagros-Makran transition zoneinferred from GPS measurements[J]. Geophys J Int, 2006, 165: 373-381.
[5] Hori M, Kameda T, Kato T. Application of the inversion method to a GPS network for estimating the stress increment in Japan[J]. Geophys J Int, 2001, 144: 597-608.
[6] 李延兴, 黄珹, 胡新康, 等. 板内块体的刚性弹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, 23(6): 565-572.
[7] 石耀霖, 朱守彪. 利用GPS观测资料划分现今地壳活动块体的方法[J]. 大地测量与地球动力学, 2004, 24(2): 1-5.
[8] 石耀霖, 朱守彪. 用GPS位移资料计算应变方法的讨论[J]. 大地测量与地球动力学, 2006, 26(1): 1-8.
[9] 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.
[10] 王琪, 张培震. 中国大陆现今地壳运动和构造变形[J]. 中国科学(D), 2001, 31(7): 529-536.
[11] 刘晓霞, 江在森, 武艳强, 等. 利用GPS资料研究燕山—渤海带的运动状态[J]. 大地测量与地球动力学, 2010, 30(1): 21-26.
[12] 许才军, 李志才, 等. 华北地区活动地块运动时空变化特征[J]. 大地测量与地球动力学, 2002, 22(2): 1-8.
[13] 唐方头, 张培震, 邓志辉, 等. 华北地区主要断裂带的现今运动特征[J]. 煤田地质与勘探, 2005, 33(1): 4-6.
[14] 刘峡, 马瑾, 傅容珊, 等. 华北地区现今地壳运动动力学初步研究[J]. 地球物理学报, 2010, 53(6): 1418-1427.
[15] 李延兴, 杨国华, 李智, 等. 中国大陆活动地块的运动与应变状态[J]. 中国科学, D辑33(增刊): 2003, 1-16.
[16] 江在森, 刘经南. 应用最小二乘配置建立地壳运动速度场及应变场的方法[J]. 地球物理学报, 2010, 53(5): 1109-1117, Doi: 10.
[17] 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.
[18] 杨国华, 韩月萍. 苏鲁皖地区现今地壳垂直运动及郯庐断裂带的活动特征[J]. 地壳形变与地震, 1997, 17(1): 39-44.

Motion and Deformation State of the Tancheng- Lujiang Fault Zone Derived from GPS Data

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