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, Alanen_US
dc.contributor.committeeMemberZelt, Colinen_US
dc.contributor.committeeMemberLenardic, Adrianen_US
dc.creatorMargolis, Rachel Ellenen_US
dc.date.accessioned2016-01-27T22:17:41Zen_US
dc.date.available2016-01-27T22:17:41Zen_US
dc.date.created2014-12en_US
dc.date.issued2014-08-26en_US
dc.date.submittedDecember 2014en_US
dc.date.updated2016-01-27T22:17:41Zen_US
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.en_US
dc.format.mimetypeapplication/pdfen_US
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>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/88192en_US
dc.language.isoengen_US
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.en_US
dc.subjecttomographyen_US
dc.subjectseismologyen_US
dc.subjectRayleigh waveen_US
dc.subjectUSArrayen_US
dc.subjectlithosphereen_US
dc.subjectasthenosphereen_US
dc.titleImaging the Great Plains of the Central U.S. using Finite-Frequency Rayleigh Wave Tomography and Implications for Asthenosphere-Driven Upliften_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentEarth Scienceen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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