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3D seismic tomography by using taveltime and waveform of multi-phase and application to crustal structure in korean peninsula and qilianshan Mt

机译:三维地震断层扫描通过使用多相和应用在韩国半岛和祁连山地壳结构的地壳结构中的波形

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This results including: A new technique of simultaneous inversion for 3-D seismic velocity structure using Pg,Sg,PmP,SmS, Pn and Sn arrival times of 32 events with 404 seismic rays are inverted for locations and crustal structure, these is applied to the Center of the Korean Peninsula and Qilianshan Mt. 3-D seismic velocity tomography including 8-sections from earth surface to the Moho, 13 rofiles along latitude and longitude, and depth distribution was determined. The velocities fluctuate strongly in the upper crust; There are big anisotrophy bodies near north of Seoul in upper crust, implying that they may be related to deep fault system of Chugaryong Rift Valley.They found that there were low velocity bodies under the Kyongju area at the depth 10-15 km, under the Youngwol area at the depth 10km, at the Hongsung area at the depth 5-10 km, indicating that they may be related to the earthquake source of Kyongju (6/25/1997), Youngwol (12/13/1996), and Hongsung (10/07/1978), respectively. These results are also consistent with Bouguer gravity anomalies showing very complex and low velocity bodies beneath the Chugaryong Rift Valley and/or deep fault systems and the earthquake hypocenters, respectively.
机译:此结果,包括:同步反演的用于使用与404条地震射线32个事件被反转位置和地壳结构PG,SG,PMP,SMS,Pn和Sn的到达时间3-d地震速度结构的新方法,这些被施加到朝鲜半岛和祁连山山3-d地震速度断层包括来自地球表面的8部分以莫霍,沿着纬度和经度13个rofiles,和深度分布的中心被确定。在速度上地壳强烈波动;附近有上地壳首尔以北的大anisotrophy机构,这意味着它们可能与Chugaryong裂谷Valley.They的深大断裂系统发现有在深度10-15公里庆州地区下低速机构,下在深度10公里,在在深度5-10公里Hongsung区域Youngwol面积,这表明它们可能与庆州(1997年6月25日),Youngwol(1996年12月13日),和Hongsung的地震源(1978年10月7日),分别。这些结果也与布格重力异常分别示出Chugaryong裂谷和/或深大断裂系统和地震震源,下面非常复杂和低速机构保持一致。

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