Shear-wave Velocity Profiling Using Microtremors on Jeju Island, Korea

摘要：

　　To reveal shear-wave velocity ( vs ) structures of Jeju Island in Korea,the spatial autocorrelation method was applied to microtremors recorded at five sites using four broadband seismometers.Shear-wave velocities were derived by inverting the dispersion curves of fundamental mode.The inversion models around the periphery of Mt.Halla indicate the existence of a low-velocity layer (LVL) beneath the extrusive volcanic outcrops of Quaternary age.This LVL correlates with Pleistocene marine sediments of the Seoguipo and U Formations that were sampled in nearby wells.Beneath the LVL,vs increases gradually with depth in welded tuffs that overlie a Cretaceous-Paleogene granite.

作者: Ki Young Kim

作者单位: Department of Geophysics, Kangwon National University, Chuncheon, Korea

会议类型: 国际会议

会议名称: 第五届环境与工程地球物理国际会议(ICEEG 2012)

会议地点: 长沙

会议语种:英文

页码: 205-209

在线出版日期: 2012-06-15（万方平台首次上网日期，不代表论文的发表时间）