Imaging the Great Plains of the Central U.S. using Finite-Frequency Rayleigh Wave Tomography and Implications for Asthenosphere-Driven Uplift

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dc.contributor.advisorLevander, Alan
dc.contributor.committeeMemberZelt, Colin
dc.contributor.committeeMemberLenardic, Adrian
dc.creatorMargolis, Rachel Ellen
dc.date.accessioned2016-01-27T22:17:41Z
dc.date.available2016-01-27T22:17:41Z
dc.date.created2014-12
dc.date.issued2014-08-26
dc.date.submittedDecember 2014
dc.date.updated2016-01-27T22:17:41Z
dc.description.abstractHere we present a 3D shear velocity model for the lower crust and upper mantle beneath the Great Plains in the central United States using finite frequency Rayleigh wave tomography. We use USArray Transportable Array recordings of teleseismic Rayleigh waves and first invert for phase velocity using the two-plane wave method with finite frequency kernels, then invert the resulting dispersion curves for shear velocity structure. We characterize the lithospheric structure in this tectonically transitional regime to illuminate the differences between the actively deforming west and stable continental interior. The west is defined by slow velocities and thin lithosphere, whereas the east has fast velocities and thick lithosphere, with the thickest lithosphere under the Superior craton. From our tomography and heat flow data, we infer warm temperatures in the west and suggest that the asthenospheric mantle contributes to anomalously high elevation in the west with secondary contributions from crustal effects.
dc.format.mimetypeapplication/pdf
dc.identifier.citationMargolis, Rachel Ellen. "Imaging the Great Plains of the Central U.S. using Finite-Frequency Rayleigh Wave Tomography and Implications for Asthenosphere-Driven Uplift." (2014) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/88192">https://hdl.handle.net/1911/88192</a>.
dc.identifier.urihttps://hdl.handle.net/1911/88192
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjecttomography
dc.subjectseismology
dc.subjectRayleigh wave
dc.subjectUSArray
dc.subjectlithosphere
dc.subjectasthenosphere
dc.titleImaging the Great Plains of the Central U.S. using Finite-Frequency Rayleigh Wave Tomography and Implications for Asthenosphere-Driven Uplift
dc.typeThesis
dc.type.materialText
thesis.degree.departmentEarth Science
thesis.degree.disciplineNatural Sciences
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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