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GPS测量揭示的福建沿海地区的现今地形变
引用本文:郭逢英,史粦华,丁学仁,林继华,刘序俨,黄声明,黄立人,马青. GPS测量揭示的福建沿海地区的现今地形变[J]. 大地测量与地球动力学, 2003, 23(3): 87-92
作者姓名:郭逢英  史粦华  丁学仁  林继华  刘序俨  黄声明  黄立人  马青
作者单位:1. 福建省地震局,福州,350001
2. 中国地震局第一地形变监测中心,天津,300180
基金项目:福建省计委“九五”科技攻关项目,福建省地震局 10 5 -0 4A课题,国家重大科学工程“中国地壳运动观测网络”项目
摘    要:根据福建GPS监测网3期(1997,1999,2001)观测资料的计算结果,分析了福建沿海地区的现今地形变特征。(1)福建地区有两个剪应变相对集中区,北部是湾口、闽清一带;南部是泉州、厦门一带。这两个区的剪应变随时间变化有加强的趋势。(2)南部剪应变集中区基本处于压应变环境,并且主要断裂两侧存在相对较高的剪应变集中区,值得关注。

关 键 词:GPS 福建沿海地区 现今地形变 位移场 应变场 剪应变
文章编号:1671-5942(2003)03-0087-06
修稿时间:2003-05-06

CRUSTAL DEFORMATION ALONG COAST OF FUJIAN REVEALED BY GPS
Guo Fengying,Shi Linhua,Ding Xueren,Lin Jihua Liu Xuyan,Huang Shengming,Huang Liren and Ma Qing ) Seismological Bureau of Fujian Province,Fuzhou ) No. Crustal Deformation Monitoring Center,CSB,Tianjin. CRUSTAL DEFORMATION ALONG COAST OF FUJIAN REVEALED BY GPS[J]. Journal of Geodesy and Geodynamics, 2003, 23(3): 87-92
Authors:Guo Fengying  Shi Linhua  Ding Xueren  Lin Jihua Liu Xuyan  Huang Shengming  Huang Liren   Ma Qing ) Seismological Bureau of Fujian Province  Fuzhou ) No. Crustal Deformation Monitoring Center  CSB  Tianjin
Affiliation:Guo Fengying,Shi Linhua,Ding Xueren,Lin Jihua Liu Xuyan,Huang Shengming,Huang Liren and Ma Qing 1) Seismological Bureau of Fujian Province,Fuzhou 350001 2) No.1 Crustal Deformation Monitoring Center,CSB,Tianjin 300180
Abstract:In the light of the computed results of measurement data of GPS observation network in 3 periods (1997, 1999, 2001)we have analyzed the current deformation characteristics along the coast of Fujian as follows. (1) There are two relative concentration areas of shear strain in Fujian:the northern one is Wankou-Minqing and the southern one is Quanzhou-Xiamen.In addition,the shear strains in the two areas show a increasing trend with time. (2)the southern area of shear strain concentration is basically in a compressive strain condition and there exists relative high shear strain concentration area on the two sides of the principal fault.
Keywords:coastal area of Fujian  displacement field   strain field   shear strain
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