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The Physics of Fluid-Solid Coupling in Faults and Magma Reservoirs: Applications to Volcano Deformation and Caldera Collapse Earthquakes
The Physics of Fluid-Solid Coupling in Faults and Magma Reservoirs: Applications to Volcano Deformation and Caldera Collapse Earthquakes
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211153050
- ISBN
- 9798346394280
- DDC
- 910.285
- 저자명
- Wang, Taiyi.
- 서명/저자
- The Physics of Fluid-Solid Coupling in Faults and Magma Reservoirs: Applications to Volcano Deformation and Caldera Collapse Earthquakes
- 발행사항
- [Sl] : Stanford University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 239 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-05, Section: B.
- 주기사항
- Advisor: Segall, Paul.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2024.
- 초록/해제
- 요약The ubiquitous presence of fluids in Earth's crust underscores the importance of fluid-solid mechanical coupling in seismic and volcanic phenomena. The challenge to understanding fluid-solid coupling in Earth is in identifying the relevant physics underlying geophysical observations spanning vast spatial and temporal scales. The lack of means to ground-truth interpretations of geophysical observations necessitates explanatory models rooted in rigorous mechanics.In this dissertation, I develop and apply analytical modeling, numerical simulations, and neural network-based emulators to understand the physics of fluid-solid coupling in earthquake faults and magmatic reservoirs, bridging the gap between geophysical observations and source dynamics. The dissertation covers 2 themes totaling 6 chapters. Theme 1 focuses on ground deformation due to pressure changes in magma reservoirs. In Chapter 2, I develop a lumped parameter model for magma transfer between multiple magma reservoirs and apply it to constrain the connectivity between reservoirs at the summit of the K¯ilauea volcano and its rift zone, utilizing InSAR (Interferometric Synthetic Aperture Radar) and GNSS (Global Navigation Satellite System) ground deformation data. In Chapter 3, I develop the first Graph Neural Network emulators for fast and accurate predictions of surface deformation associated with magma reservoirs of complex geometries. The emulators enable Bayesian inversions of non-spheroidal magma reservoir geometries from surface deformation measurements.Theme 2 focuses on the mechanics of earthquakes associated with caldera collapse eruptions. In Chapter 4, I propose a physics-based model to simultaneously explain the static inflationary deformation and very-long-period ground motions associated with Mw 5 caldera collapse earthquakes at Kilauea in 2018. In Chapter 5, I perform the first 3D dynamic rupture simulation of caldera collapse earthquakes and develop complementary analytical analyses to investigate the effects of magma viscoelasticity and seismic wave radiation on the dynamics of caldera collapse. In Chapter 6, I extend existing seismic representation theorem to include seismic torque in arbitrarily shaped source regions. I then use the theorem to analyze simulated wavefield of caldera collapse earthquakes. In Chapter 7, I investigate the origin of numerous earthquakes in between Mw 5 caldera collapse earthquakes at Kilauea in 2018, using fault and seismicity models based on rate-and-state friction.
- 일반주제명
- Physics
- 일반주제명
- Viscosity
- 일반주제명
- Volcanoes
- 일반주제명
- Rheology
- 일반주제명
- Neural networks
- 일반주제명
- Earthquakes
- 일반주제명
- Deformation
- 일반주제명
- Geometry
- 일반주제명
- Hydraulics
- 일반주제명
- Radiation
- 일반주제명
- Magma
- 일반주제명
- Aerospace engineering
- 일반주제명
- Geology
- 일반주제명
- Hydraulic engineering
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 86-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■040 ▼aMiAaPQ▼cMiAaPQ
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■1001 ▼aWang, Taiyi.
■24510▼aThe Physics of Fluid-Solid Coupling in Faults and Magma Reservoirs: Applications to Volcano Deformation and Caldera Collapse Earthquakes
■260 ▼a[Sl]▼bStanford University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a239 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-05, Section: B.
■500 ▼aAdvisor: Segall, Paul.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2024.
■520 ▼aThe ubiquitous presence of fluids in Earth's crust underscores the importance of fluid-solid mechanical coupling in seismic and volcanic phenomena. The challenge to understanding fluid-solid coupling in Earth is in identifying the relevant physics underlying geophysical observations spanning vast spatial and temporal scales. The lack of means to ground-truth interpretations of geophysical observations necessitates explanatory models rooted in rigorous mechanics.In this dissertation, I develop and apply analytical modeling, numerical simulations, and neural network-based emulators to understand the physics of fluid-solid coupling in earthquake faults and magmatic reservoirs, bridging the gap between geophysical observations and source dynamics. The dissertation covers 2 themes totaling 6 chapters. Theme 1 focuses on ground deformation due to pressure changes in magma reservoirs. In Chapter 2, I develop a lumped parameter model for magma transfer between multiple magma reservoirs and apply it to constrain the connectivity between reservoirs at the summit of the K¯ilauea volcano and its rift zone, utilizing InSAR (Interferometric Synthetic Aperture Radar) and GNSS (Global Navigation Satellite System) ground deformation data. In Chapter 3, I develop the first Graph Neural Network emulators for fast and accurate predictions of surface deformation associated with magma reservoirs of complex geometries. The emulators enable Bayesian inversions of non-spheroidal magma reservoir geometries from surface deformation measurements.Theme 2 focuses on the mechanics of earthquakes associated with caldera collapse eruptions. In Chapter 4, I propose a physics-based model to simultaneously explain the static inflationary deformation and very-long-period ground motions associated with Mw 5 caldera collapse earthquakes at Kilauea in 2018. In Chapter 5, I perform the first 3D dynamic rupture simulation of caldera collapse earthquakes and develop complementary analytical analyses to investigate the effects of magma viscoelasticity and seismic wave radiation on the dynamics of caldera collapse. In Chapter 6, I extend existing seismic representation theorem to include seismic torque in arbitrarily shaped source regions. I then use the theorem to analyze simulated wavefield of caldera collapse earthquakes. In Chapter 7, I investigate the origin of numerous earthquakes in between Mw 5 caldera collapse earthquakes at Kilauea in 2018, using fault and seismicity models based on rate-and-state friction.
■590 ▼aSchool code: 0212.
■650 4▼aGlobal positioning systems--GPS
■650 4▼aPhysics
■650 4▼aViscosity
■650 4▼aVolcanoes
■650 4▼aRheology
■650 4▼aNeural networks
■650 4▼aEarthquakes
■650 4▼aDeformation
■650 4▼aGeometry
■650 4▼aHydraulics
■650 4▼aRadiation
■650 4▼aMagma
■650 4▼aAerospace engineering
■650 4▼aGeology
■650 4▼aHydraulic engineering
■690 ▼a0605
■690 ▼a0538
■690 ▼a0800
■690 ▼a0372
■690 ▼a0218
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g86-05B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164812▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


