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dc.contributor.authorOstrowicki, Katrina Samantha
dc.date.accessioned2014-03-04T20:59:39Z
dc.date.available2014-03-04T20:59:39Z
dc.date.issued2012-12
dc.identifier.otherostrowicki_katrina_s_201212_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/ostrowicki_katrina_s_201212_ms
dc.identifier.urihttp://hdl.handle.net/10724/28569
dc.description.abstractThe USGS Saline Aquifer Mapping Project is currently evaluating salinity variations in the Floridan aquifer system utilizing borehole geophysical logs to determine water quality throughout the aquifer system. This study, which contributes to the larger USGS mapping project, gives a detailed mineralogical, petrophysical, and petrographic analysis of core from Cockspur Island using XRD, image analysis software, minipermeametry, and laboratory resistivity measurements. This study investigates how a siliciclastic input in a carbonate aquifer, along with pore geometry, affects the geophysical logs used to calculate salinity. The Lower Floridan aquifer had a significant amount of clinoptilolite, which caused porosity to be underestimated from the sonic log, and illite and smectite, which likely has no effect on the resistivity well log. Cementation factors were found to be significantly larger for grainstones than packstones to wackestones. This study shows that mineralogy and lithology must be taken into account in the USGS’s mapping project.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectFloridan Aquifer System
dc.subjectClinoptilolite
dc.subjectPetrophysics
dc.subjectCarbonate Core
dc.subjectResistivity
dc.subjectConductivity
dc.subjectWell Logs
dc.subjectCockspur Island
dc.subjectcore hole
dc.subjectSavannah
dc.subjectSonic
dc.subjectGamma-ray
dc.titleA petrographic, mineralogical, and petrophysical analysis of carbonate core in the Floridan aquifer system
dc.title.alternativeCockspur island, Georgia, USA
dc.typeThesis
dc.description.degreeMS
dc.description.departmentGeology
dc.description.majorGeology
dc.description.advisorPaul Schroeder
dc.description.committeePaul Schroeder
dc.description.committeeBruce Railsback
dc.description.committeeJohn Dowd


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