珊溪水库地区深部构造探测研究
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摘要
通过对珊溪水库地区进行深地震反射探测,获得该地区近地表至地壳中部的精细几何结构和深浅构造关系。结果表明,该地区地壳结构在纵向具有明显的分带性,在横向显示出以断层为界的块状结构特点。研究区内走向北西的双溪-焦溪垟断层向深部延伸超过20km进入中下地壳,为该区域内主要控制性断层,主要影响周围浅部断层的发育,是该地区主要发震构造。
The fine crustal structure and deep-shallow tectonic features in Shanxi reservoir area are explored using deep seismic reflection.The results show that the crust in this area has obvious zoning features in the vertical direction and block structures by faults in the horizontal direction.In the studied area,there is a Shuangxi-Jiaoxiyang fault,which strikes to the northwest and extends about 20 km to the mid-lower crust.It is the main controlling fault in this area,affecting the developing of lower faults in nearby regions,and is the main seismogenic structure of earthquakes in this area.
The fine crustal structure and deep-shallow tectonic features in Shanxi reservoir area are explored using deep seismic reflection.The results show that the crust in this area has obvious zoning features in the vertical direction and block structures by faults in the horizontal direction.In the studied area,there is a Shuangxi-Jiaoxiyang fault,which strikes to the northwest and extends about 20 km to the mid-lower crust.It is the main controlling fault in this area,affecting the developing of lower faults in nearby regions,and is the main seismogenic structure of earthquakes in this area.
引文
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[8]熊绍栢,刘宏兵.浙皖地区地壳-上地幔结构和华南与扬子块体边界[J].地球物理学进展,2000,15(4):3-17(Xiong Shaobai,Liu Hongbing.Crust-Mantle Structure of Zhejiang-Anhui Region and the Boundary between Yangzi Block and Huanan Block[J].Progress in Geophysics,2000,15(4):3-17)
[2]周新,杨福平,钟羽云,等.浙江地区水库地震与构造地震应力参数特征研究[J].华南地震,2012,32:52-63(Zhou Xin,Yang Fuping,Zhong Yuyun,et al.A Study on Stress Parametre Characteristics of Reservoir Earthquakes and Tectonic Earthquakes in Zhejiang[J].South China Journal of Seismology,2012,32:52-63)
[3]刘保金,胡平,孟勇齐,等.北京地区地壳精细结构的深地震反射剖面探测研究[J].地球物理学报,2009,52(9):2 264-2 272(Liu Baojin,Hu Ping,Meng Yongqi,et al.Research on Fine Crustal Structure using Deep Seismic Reflection Profile in Beijing Region[J].Chinese Journal of Geophysics,2009,52(9):2 264-2 272)
[4]朱金芳,方盛明,张先康,等.泉州盆地及其邻区地壳深部结构的探测与研究[J].中国地震,2006,22(3):249-258(Zhu Jinfang,Fang Shengming,Zhang Xiankang,et al.Exploration and Study of Deep Crustal Structure in the Quanzhou Basin and Its Adjacent Area[J].Earthquake Research in China,2006,22(3):249-258)
[5]黄兴富,高锐,李文辉,等.银川盆地构造发展——深地震反射剖面揭示浅部地质与深部构造的联系[J].地质科学,2016,51(3):53-66(Huang Xingfu,Gao Rui,Li Wenhui,et al.Development of the Yinchuan Basin:Deep Seismic Reflection Profile Revealed the Linkages between Shallow Geology and Deep Structures[J].Chinese Journal of Geology,2016,51(3):53-66)
[6]王椿槦,陈运泰,邵占英.中国东南陆缘的深部结构与动力学过程[J].地壳形变与地震,1998,18(2):1-8(Wang Chunyong,Chen Yuntai,Shao Zhanying.Deep Structure and Its Geodynamics in Southeast Continental Margin of China[J].Crustal Deformation and Earthquake,1998,18(2):1-8)
[7]马志江,钟羽云,韩用兵,等.温州珊溪水库诱发地震构造条件[J].地球科学,2016,41(8):1 413-1 423(Ma Zhijiang,Zhong Yuyun,Han Yongbing,et al.The Tectonic Conditions of Shanxi Reservior Induced Earthquake in Wenzhou[J].Earth Science,2016,41(8):1413-1423)
[8]熊绍栢,刘宏兵.浙皖地区地壳-上地幔结构和华南与扬子块体边界[J].地球物理学进展,2000,15(4):3-17(Xiong Shaobai,Liu Hongbing.Crust-Mantle Structure of Zhejiang-Anhui Region and the Boundary between Yangzi Block and Huanan Block[J].Progress in Geophysics,2000,15(4):3-17)