CAJ | 학술논문

利用山东区域地震数字台网提供的数据，通过三维层析成像方法结合山东地质构造实际情况，对山东区域进行联合走时反演地壳速度结构，获得该区分辨率较高的三维速度结构图像。结果表明：不同深度上的速度分布反映出山东地区深部构造的某些重要信息，为进一步研究该区的活动构造及地震参数计算提供科学依据。在地壳速度结构与中强地震活动的关系上，再次显示出中强震多发生在速度结构高速单元与低速单元的过渡带附近，说明中强震的孕育与震源区周围介质的不均匀性有关。
이용산동구역지진수자태망제공적수거，통과삼유층석성상방법결합산동지질구조실제정황，대산동구역진행연합주시반연지각속도결구，획득해구분변솔교고적삼유속도결구도상。결과표명：불동심도상적속도분포반영출산동지구심부구조적모사중요신식，위진일보연구해구적활동구조급지진삼수계산제공과학의거。재지각속도결구여중강지진활동적관계상，재차현시출중강진다발생재속도결구고속단원여저속단원적과도대부근，설명중강진적잉육여진원구주위개질적불균균성유관。
In this paper using inversion technique about combined travel-time of seismic waves on the data recorded by Shandong regional seismic station network,and the actual situation of geo-logical structures in Shandong Province,tomography research in the area is discussed.The work has shown that:the velocity distribution at different depths reflects the deep structure in Shandong.It provides some important information for further research of active tectonics and the basis of scientific calculation of earthquake parameter.The relationship between the strength of crustal structure and the shows again that the strong earthquake occurred near the transition zone of highter and lowerthe velocity units,indicating that the gestation of strong earthquake is relate to the medium heterogeneity of source region.