S-wave velocity structures of the Taipei Basin, Taiwan, using microtremor array measurements

Huey Chu Huang, Cheng Feng Wu, Feng Mei Lee, Ruey Der Hwang

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)

摘要

The S-wave velocity structures of the Taipei Basin in Taiwan are investigated using the array records of microtremors at 15 sites. Dispersion curves at these sites are calculated using the frequency-wavenumber (F-K) spectrum method. The S-wave velocity structures in the Taipei Basin are then estimated by employing surface wave inversion technique. Harder strata sites have higher phase velocities than softer sites. If the S-wave velocity of the Tertiary Basement is assumed to be 1000. m/s, then the Quaternary alluvial thicknesses in the Taipei Basin are between about 100. m and 650. m. The thickness of the alluvium gradually increases from the southeast to the northwest. The inversion results are also in good agreement with well-logging data and seismic reflection studies of the Taipei Basin. The study concludes that microtremor array measurement is a useful tool for estimating S-wave velocity structure.

原文English
頁(從 - 到)1-13
頁數13
期刊Journal of Asian Earth Sciences
101
DOIs
出版狀態Published - 2015 四月 1

All Science Journal Classification (ASJC) codes

  • Geology
  • Earth-Surface Processes

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