
深部构造研究受监测手段限制,主要通过地质体对波的反射等间接方法开展。控震构造研究中,震源机制解结合余震空间分布可确定发震构造几何特征,而整体构造环境需通过实测地震波数据反演得到地壳浅部三维速度结构。本研究利用水库地震台网获取的1421次地震观测数据、2万余条绝对到时及26万余条相对到时数据,基于西南地区一维速度模型,反演获得震源区高分辨率三维速度结构。结果显示,震源集中分布于速度变化梯度带,其速度差异反映了震源区地质构造的性质差异。本研究建立的三维速度结构模型揭示了震源分布与地下构造的空间关联,为理解水库蓄水引发的应力场扰动、断层活化机制提供了关键地球物理约束,为水库诱发地震机理研究提供关键技术支撑。
朱介寿,王绪本,杨宜海,范军,程先琼.青藏高原东缘的地壳流及动力过程[J].地球物理学报,2017(06).
王清东,朱良保,苏有锦,王光明.2012年9月7日彝良地震及余震序列双差定位研究[J].地球物理学报,2015(09).
王未来,吴建平,房立华,来贵娟.2014年云南鲁甸M_s6.5地震序列的双差定位[J].地球物理学报,2014(09).
吴建平,杨婷,王未来,明跃红,张天中.小江断裂带周边地区三维P波速度结构及其构造意义[J].地球物理学报,2013(07).
吴建平,明跃红,王椿镛.川滇地区速度结构的区域地震波形反演研究[J].地球物理学报,2006(05).
熊绍柏,郑晔,尹周勋,曾晓献,全幼黎,孙克忠.丽江—攀枝花—者海地带二维地壳结构及其构造意义[J].地球物理学报,1993(04).
Umar Muksin,Klaus Bauer,Christian Haberland.Seismic Vp and Vp/Vs structure of the geothermal area around Tarutung (North Sumatra, Indonesia) derived from local earthquake tomography[J].Journal of Volcanology and Geothermal Research,2013.
Dorbath C,Van der Woerd J,Arefiev SS,Rogozhin EA,Aptekman JY.Geological and Seismological Field Observations in the Epicentral Region of the 27 September 2003 M-W 7.2 Gorny Altay Earthquake (Russia)[J].Bulletin of the Seismological Society of America,2008.
S. Bannister,C. Thurber,J. Louie.Detailed fault structure highlighted by finely relocated aftershocks, Arthur's Pass, New Zealand[J].Geophysical Research Letters,2006.
Shelly David R,Beroza Gregory C,Ide Satoshi,Nakamula Sho.Low-frequency earthquakes in Shikoku, Japan, and their relationship to episodic tremor and slip.[J].Nature,2006.
Haijiang Zhang,Clifford Thurber.Development and applications of double-difference seismic tomography[J].Pure and Applied Geophysics,2006.
Tomomi Okada,Tadashi Yaginuma,Norihito Umino,Toru Matsuzawa,Akira Hasegawa,Haijiang Zhang,Clifford H. Thurber.Detailed imaging of the fault planes of the 2004 Niigata–Chuetsu, central Japan, earthquake sequence by double-difference tomography[J].Earth and Planetary Science Letters,2006.
Thurber C,Zhang HJ,Waldhauser F,Hardebeck J,Michael A,Eberhart-Phillips D.Three-dimensional compressional wavespeed model, earthquake relocations, and focal mechanisms for the Parkfield, California, region[J].Bulletin of the Seismological Society of America,2006.
Haijiang Zhang,Clifford H. Thurber.Double-Difference Tomography: The Method and Its Application to the Hayward Fault, California[J].Bulletin of the Seismological Society of America,2003.
Felix Waldhauser,William L. Ellsworth.A Double-Difference Earthquake Location Algorithm: Method and Application to the Northern Hayward Fault, California[J].Bulletin of the Seismological Society of America,2000.
Donna Eberhart-Phillips.Three-dimensional velocity structure in northern California Coast Ranges from inversion of local earthquake arrival times[J].1986.
0
Views
0
下载量
0
CSCD
Publicity Resources
Related Articles
Related Author
Related Institution
京公网安备11010802024621