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dc.contributor.advisorSchutt, Derek
dc.contributor.authorMillikan, Ronald
dc.contributor.committeememberHannah, Judy
dc.contributor.committeememberBreidt, Jay
dc.date.accessioned2007-01-03T06:39:51Z
dc.date.available2007-01-03T06:39:51Z
dc.date.issued2014
dc.description2014 Summer.
dc.descriptionIncludes bibliographical references.
dc.description.abstractThis study employs the method of shear wave splitting using a modified Silver and Chan methodology to produce constraints on the character of the upper mantle below the Cheyenne Belt suture zone (CB), North America. The CB marks the boundary between the Proterozoic Yavapai and Archean Wyoming Provinces. A previously undetected regional anisotropic fossil fabric with north trending fast axis orientations was detected in topographically low areas and interpreted produced by Proterozoic strain created during the convergence that produced the CB. Anisotropy results sub-parallel to absolute plate motion (APM) were detected in the mountainous areas. This is interpreted as caused by local post-Laramide heating of the lithosphere, which has reset Proterozoic anisotropy. This interpretation explains the complexity of shear wave splitting noted in Colorado by other studies.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.identifierMillikan_colostate_0053N_12445.pdf
dc.identifier.urihttp://hdl.handle.net/10217/84006
dc.languageEnglish
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019 - CSU Theses and Dissertations
dc.rightsCopyright of the original work is retained by the author.
dc.subjectanisotropy
dc.subjectshear wave splitting
dc.subjectlithospheric structure
dc.subjectCheyenne Belt
dc.titleIndications of complex lithospheric structure around the Cheyenne Belt in the western U.S. based on shear wave splitting analysis
dc.typeText
dcterms.rights.dplaThe copyright and related rights status of this Item has not been evaluated (https://rightsstatements.org/vocab/CNE/1.0/). Please refer to the organization that has made the Item available for more information.
thesis.degree.disciplineGeosciences
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)


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