台中—晋江横向构造带对福建现代地壳变形和地震的影响
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摘要
台中—晋江横向构造带是一条重要的断裂带,控制了福建地区新生代地壳变形和现今地壳运动的南北差异。研究表明,受该断裂带控制,形成福建现代地壳运动南北分区,地壳活动南强北弱、南升北降的特点;历史中强地震基本分布在断裂以南的东部和邻近海域地区,形成南部地震集中区;1999—2006年环境剪应力值高值区集中分布在台中—晋江横向构造带以南,也反映了南强北弱、南北分区的特点。
Taizhong-Jinjiang transverse structure belt is an important Faulted Zone,which controls the North-South differences of cenozoic diastrophism and current lithosphere movement of Fujian province.As studies shown,under the control of this Faulted Zone,the characteristics are formed that modern crustal movement of Fujian is districted by north and south,and crustal activities are weak and falling in the north but strong and rising in the south.Historically,high magnitude earthquakes primarily distribute in the east and adjacent sea area of southern Faulted Zone,so that a centralized earthquake area is formed in southern area.During 1999 to 2006,high environmental shear stress area is also centrally distributed to the south of Taizhong-Jinjiang transverse structure belt,which reflects the characteristics of strong in south,weak in north and the North-South division too.
Taizhong-Jinjiang transverse structure belt is an important Faulted Zone,which controls the North-South differences of cenozoic diastrophism and current lithosphere movement of Fujian province.As studies shown,under the control of this Faulted Zone,the characteristics are formed that modern crustal movement of Fujian is districted by north and south,and crustal activities are weak and falling in the north but strong and rising in the south.Historically,high magnitude earthquakes primarily distribute in the east and adjacent sea area of southern Faulted Zone,so that a centralized earthquake area is formed in southern area.During 1999 to 2006,high environmental shear stress area is also centrally distributed to the south of Taizhong-Jinjiang transverse structure belt,which reflects the characteristics of strong in south,weak in north and the North-South division too.
引文
①沈金瑞,许世远,傅文杰.台海地区横向构造及其对东南沿海地震的作用[J].大地构造与成矿学,2009,33(4):待发表。
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[1]王小亚,朱文耀,符养.GPS监测的中国及其周边现时地壳变形[J].地球物理学报,2002,45(2):198-209.
[2]马宗晋,王乾盈,徐杰.台湾海峡两岸横向构造的对比研究[J].中国科学:D辑,2002,32(6):441-451.
[3]福建省地质矿产局.福建省区域地质志[M].北京:地质出版社,1985:537-539.
[4]马杏垣,丁国瑜,高文学,等.中国岩石圈动力学地图集[M].北京:中国地图出版社,1989:39.
[5]姚庆元,何昭星.惠安埔塘—青山断裂带的活动特征[J].台湾海峡,1994,13(1):101-108.
[6]丁祥焕,王耀东,叶盛基.福建东南沿海活动断裂与地震[M].福州:福建科学技术出版社,1999:135-142.
[7]王志刚,李林.中亚天山地区横向构造的航天遥感分析[J].环境遥感,1996,11(4):273-279.
[8]Lu C Y,Angelier J,Chu H T,et al.Contractional,transcurrent,rotational and extensional tectonics—examples from northern Taiwan[J].Tectonophysics,1995,246(1/3):129-146.
[9]王国纯.台西盆地构造单元划分初探[J].中国海上油汽,1997,11(2):80-86.
[10]刘与锟,郭逢英,陈兆煌,等.福建省现代地壳垂直运动与断裂活动[J].地壳变形与地震,1998(4):68-73.
[11]李延兴,胡新康,李智,等.台海地区的地壳运动与变形[J].地震学报,2002,24(5):487-495.
[12]Yu S B,Kuo L C.GPS observation of crustaldeformation in Taiwan-Luzou region[J].GeophysicalResearch Letters,1999,26(7):923-926.
[13]Teng L S.Extensional collapse of the northern Taiwanmountain belt[J].Geology,1996,24(10):949-952.
[14]周硕愚,帅平,郭逢英,等.中国福建及其边缘海域现时地壳运动定量研究[J].地震学报,2000,22(1):66-72.
[15]陈晨.福建地区地震活动空间分布及活动断裂特点研究[J].地震,2005,25(3):102-107.
[16]陈培善,谷继成,李文香.从断裂力学观点研究地震的破裂过程和地震预报[J].地球物理学报,1977,20(3):185-202.
[17]陈培善,肖磊,白彤霞,等.美国南加州的构造环境剪应力场和地震危险区[J].地震学报,1998,20(2):128-136.
[18]沈金瑞,陈菁,叶雯燕,等.福建中北部环境剪应力动态分析[J].世界地理研究,2009,18(1):99-107.
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