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Transdimensional Bayesian Inversions of Multi-Mode Surface Wave Data to Constrain Sub-Oceanic Mantle Properties
Transdimensional Bayesian Inversions of Multi-Mode Surface Wave Data to Constrain Sub-Oceanic Mantle Properties
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104646
- ISBN
- 9798280754935
- DDC
- 550
- 서명/저자
- Transdimensional Bayesian Inversions of Multi-Mode Surface Wave Data to Constrain Sub-Oceanic Mantle Properties
- 발행사항
- [Sl] : University of California, Los Angeles, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 163 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
- 주기사항
- Advisor: Beghein, Caroline.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Los Angeles, 2025.
- 초록/해제
- 요약The dispersion of surface waves contains information about the elastic parameters of Earth's interior. Determining the depth dependence of isotropic and anisotropic properties of the Earth constrains its thermal and rheological structure as well as its geodynamics. Estimating accurate model uncertainties from inversions of seismic data is important to assess how strongly seismic data constrains these properties. In this thesis, we present results using a new hierarchical Transdimensional Bayesian (TB) method applied to inversion of multi-mode Love and Rayleigh wave phase velocities to obtain a 3-D radially anisotropic model of shear wave velocity of the upper mantle and mantle transition zone under the Indian Ocean. The likelihood of radial anisotropy as a function of depth was assessed using the ensemble of models returned by the method. We also present a different TB method that was used to extract multi-mode Rayleigh wave phase velocities across the Pacific basin via waveform fitting. These measurements and their robust uncertainties were used to construct azimuthally anisotropic phase velocity maps. These maps were interrogated to determine the age dependence of the phase velocities and compared to predictions from different models of thermal evolution of the lithosphere. We also compared the detected seismic anisotropy to plate motion models and paleospreading directions.
- 일반주제명
- Geophysics
- 일반주제명
- Secondary education
- 일반주제명
- Physics
- 일반주제명
- Engineering
- 키워드
- Inverse theory
- 키워드
- Surface waves
- 기타저자
- University of California, Los Angeles Geophysics & Space Physics 0406
- 기본자료저록
- Dissertations Abstracts International. 86-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798280754935
■035 ▼a(MiAaPQ)AAI32114641
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a550
■1001 ▼aDerai Weidner, Erik Christopher.
■24510▼aTransdimensional Bayesian Inversions of Multi-Mode Surface Wave Data to Constrain Sub-Oceanic Mantle Properties
■260 ▼a[Sl]▼bUniversity of California, Los Angeles▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a163 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: B.
■500 ▼aAdvisor: Beghein, Caroline.
■5021 ▼aThesis (Ph.D.)--University of California, Los Angeles, 2025.
■520 ▼aThe dispersion of surface waves contains information about the elastic parameters of Earth's interior. Determining the depth dependence of isotropic and anisotropic properties of the Earth constrains its thermal and rheological structure as well as its geodynamics. Estimating accurate model uncertainties from inversions of seismic data is important to assess how strongly seismic data constrains these properties. In this thesis, we present results using a new hierarchical Transdimensional Bayesian (TB) method applied to inversion of multi-mode Love and Rayleigh wave phase velocities to obtain a 3-D radially anisotropic model of shear wave velocity of the upper mantle and mantle transition zone under the Indian Ocean. The likelihood of radial anisotropy as a function of depth was assessed using the ensemble of models returned by the method. We also present a different TB method that was used to extract multi-mode Rayleigh wave phase velocities across the Pacific basin via waveform fitting. These measurements and their robust uncertainties were used to construct azimuthally anisotropic phase velocity maps. These maps were interrogated to determine the age dependence of the phase velocities and compared to predictions from different models of thermal evolution of the lithosphere. We also compared the detected seismic anisotropy to plate motion models and paleospreading directions.
■590 ▼aSchool code: 0031.
■650 4▼aGeophysics
■650 4▼aSecondary education
■650 4▼aPhysics
■650 4▼aEngineering
■653 ▼aBayesian inference
■653 ▼aInverse theory
■653 ▼aSeismic anisotropy
■653 ▼aSeismic tomography
■653 ▼aSurface waves
■653 ▼aTransdimensional Bayesian
■690 ▼a0373
■690 ▼a0533
■690 ▼a0467
■690 ▼a0537
■690 ▼a0605
■71020▼aUniversity of California, Los Angeles▼bGeophysics & Space Physics 0406.
■7730 ▼tDissertations Abstracts International▼g86-12B.
■790 ▼a0031
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358334▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
