지구물리와물리탐사 (Geophysics and Geophysical Exploration)

  • 제20권2호
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  • Pages.96-99
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  • 2017
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  • 1229-1064(pISSN)
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  • 2384-051X(eISSN)
한국지구물리·물리탐사학회 (Korean Society of Earth and Exploration Geophysicists)
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한반도 지각의 무브아웃 속도 및 유효비타원율 시험적 산출

Moveout Velocities and Effective Anellipticity of the Crust in the Korean Peninsula

  • 김기영 (강원대학교 지질.지구물리학부) ;
  • 박이슬 (강원대학교 지질.지구물리학부) ;
  • 변중무 (한양대학교 자원환경공학과) ;
  • 이정모 (경북대학교 지질학과)
  • Kim, Ki Young (Division of Geology and Geophysics, Kangwon National University) ;
  • Park, Iseul (Division of Geology and Geophysics, Kangwon National University) ;
  • Byun, Joongmoo (Department of Natural Resources and Environmental Engineering, Hanyang University) ;
  • Lee, Jung Mo (Department of Geology, Kyungpook National University)
  • 투고 : 2017.03.30
  • 심사 : 2017.04.07
  • 발행 : 2017.05.31
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초록

2002년에 기록한 굴절파 시험자료에 지진파 간섭학적 방법을 적용하여 구한 가상파원자료를 이용하여 한반도 지각의 무브아웃 속도와 이방계수 유효비타원율을 8개 장소에서 시험적으로 구하였다. 대략적 모호 깊이의 반사파 이벤트 무브아웃 속도는 $6.30{\pm}0.25km/s$이며, 원거리 옾셋 반사파 주시를 테일러 근사식 3항까지 전개하여 구한 지각의 유효 비타원율은 $0.18{\pm}0.07$이다.

Virtual source data were produced by applying the seismic interferometry to the 2002 experimental seismic refraction data. Using the data, moveout velocities and effective anellipticity were experimentally computed for the crust at eight sites in the Korean peninsula. The moveout velocities of reflection events at approximate Moho depths were yielded to be $6.30{\pm}0.25km/s$ using near-offset traveltimes. Expanding the Taylor approximation to the $3^{rd}$ term for far-offset traveltimes, the effective anellipticity parameters were computed to be $0.18{\pm}0.07$ for the crust material.

키워드

참고문헌

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