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High-Resolution Imaging of Earth's Lowermost Mantle


Abstract This research investigates the fine scale structure in Earth's mantle, especially for the lowermost mantle, where strong heterogeneity exists. Recent seismic tomography models have resolved large-scale features in the lower mantle, such as the large low shear velocity provinces (LLSVPs). However, differences are present between different models, especially at shorter length scales. Fine scale structures both within and outside LLSVPs are still poorly constrained. The drastic growth of global seismic networks presents densely sampled seismic data in unprecedented quality and quantity. In this work, the Empirical Wavelet construction method has been developed to document seismic travel time and waveform information for a global shear wave... (more)
Created Date 2019
Contributor Lai, Hongyu (Author) / Garnero, Edward J (Advisor) / Till, Christy B (Committee member) / Shim, Sang-Heon (Committee member) / Li, Mingming (Committee member) / Tyburczy, James (Committee member) / Arizona State University (Publisher)
Subject Geophysics / Machine Learning / Seismic Dataset / Seismic Tomography
Type Doctoral Dissertation
Extent 208 pages
Language English
Copyright
Note Doctoral Dissertation Geological Sciences 2019
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis