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dc.contributor.advisorErvin, C. Patricken_US
dc.contributor.authorHatch, Gregory P.en_US
dc.date.accessioned2016-04-22T19:50:32Z
dc.date.available2016-04-22T19:50:32Z
dc.date.issued1986
dc.identifier.urihttp://commons.lib.niu.edu/handle/10843/16164
dc.descriptionBibliography:pages [64]-65.en_US
dc.description.abstractConventional reflection seismic surveys contain both reflected and refracted data. During analysis the refracted data are usually ignored. These data contain valuable information about the seafloor and the upper part of the sediments. A basic method for this type of analysis was developed by C.P. Ervin and others in 1983. This study improves on this method by development of a computer algorithm for: 1) determination of arrival times of the refracted waves, 2) correction for dipping beds, 3) compensation for the offset of the refractor location from the ship's position, and 4) providing a contoured, velocity cross-section that may be readily interpreted. The speed of this technique permits time for analysis rather than calculation as is the case in traditional, manual methods. As an example, a profile crossing Georges Bank, northwest Atlantic Ocean, is examined using the automated method of analysis, thus demonstrating the utility of the applications cited above.en_US
dc.format.extent65 pagesen_US
dc.language.isoengen_US
dc.publisherNorthern Illinois Universityen_US
dc.rightsNIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.en_US
dc.subject.lcshMarine geophysics--Data processingen_US
dc.subject.lcshSeismic refraction method--Data processingen_US
dc.titleAutomated analysis of refraction information contained in marine reflection survey dataen_US
dc.type.genreDissertation/Thesisen_US
dc.typeTexten_US
dc.contributor.departmentDepartment of Geologyen_US
dc.description.degreeM.S. (Master of Science)en_US


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